Volume 648 (April 2021)

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Astronomy & Astrophysics

Volume 648 (April 2021) (open volume)

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The LOFAR Two Meter Sky Survey

Free Access

Editorial

The LOFAR Two Meter Sky Survey E1

Françoise Combes, David Elbaz, Thierry Forveille, Rubina Kotak, Laura Pentericci and Steve Shore

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140819

Letters to the Editor

Free Access

Formation of giant planets with large metal masses and metal fractions via giant impacts in a rapidly dissipating disk L1

Masahiro Ogihara, Yasunori Hori, Masanobu Kunitomo and Kenji Kurosaki

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140464

Free Access

Close encounters with the Death Star: Interactions between collapsed bodies and the Solar System L2

Václav Pavlík and Steven N. Shore

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140454

Free Access

TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H₂CCS, H₂CCCS, and C₄S and detection of C₅S L3

J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, J. D. Gallego, F. Tercero, J. A. López-Pérez and P. de Vicente

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140642

Free Access

First direct identification of the barlens vertical structure in galaxy models L4

Iliya S. Tikhonenko, Anton A. Smirnov and Natalia Ya. Sotnikova

Published online: 16 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140703

Free Access

The G-dwarf distribution in star-forming galaxies: A tug of war between infall and outflow L5

E. Spitoni, F. Calura, V. Silva Aguirre and R. Gilli

Published online: 16 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140836

Astronomical instrumentation

The LOFAR Two Meter Sky Survey

Press Release

Open Access

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - I. Direction-dependent calibration and imaging A1

C. Tasse, T. Shimwell, M. J. Hardcastle, S. P. O’Sullivan, R. van Weeren, P. N. Best, L. Bester, B. Hugo, O. Smirnov, J. Sabater et al. (22 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038804

Catalogs and data

The LOFAR Two Meter Sky Survey

Free Access

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - II. The ELAIS-N1 LOFAR deep field A2

J. Sabater, P. N. Best, C. Tasse, M. J. Hardcastle, T. W. Shimwell, D. Nisbet, V. Jelic, J. R. Callingham, H. J. A. Röttgering, M. Bonato et al. (13 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038828

The LOFAR Two Meter Sky Survey

Free Access

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - III. Host-galaxy identifications and value added catalogues A3

R. Kondapally, P. N. Best, M. J. Hardcastle, D. Nisbet, M. Bonato, J. Sabater, K. J. Duncan, I. McCheyne, R. K. Cochrane, R. A. A. Bowler et al. (33 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038813

The LOFAR Two Meter Sky Survey

Free Access

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - IV. Photometric redshifts and stellar masses A4

K. J. Duncan, R. Kondapally, M. J. I. Brown, M. Bonato, P. N. Best, H. J. A. Röttgering, M. Bondi, R. A. A. Bowler, R. K. Cochrane, G. Gürkan et al. (14 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038809

Extragalactic astronomy

The LOFAR Two Meter Sky Survey

Extremely deep 150 MHz source counts from the LoTSS Deep Fields A5

S. Mandal, I. Prandoni, M. J. Hardcastle, T. W. Shimwell, H. T. Intema, C. Tasse, R. J. van Weeren, H. Algera, K. L. Emig, H. J. A. Röttgering et al. (12 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039998

The LOFAR Two Meter Sky Survey

The LOFAR Two-metre Sky Survey Deep Fields - The star-formation rate–radio luminosity relation at low frequencies A6

D. J. B. Smith, P. Haskell, G. Gürkan, P. N. Best, M. J. Hardcastle, R. Kondapally, W. Williams, K. J. Duncan, R. K. Cochrane, I. McCheyne et al. (10 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039343

The LOFAR Two Meter Sky Survey

LOFAR properties of SILVERRUSH Lyα emitter candidates in the ELAIS-N1 field A7

A. J. Gloudemans, K. J. Duncan, R. Kondapally, J. Sabater, R. K. Cochrane, H. J. A. Röttgering, P. N. Best, M. Bonato, M. Bondi, K. Malek et al. (5 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038819

The LOFAR Two Meter Sky Survey

The bright end of the infrared luminosity functions and the abundance of hyperluminous infrared galaxies A8

L. Wang, F. Gao, P. N. Best, K. Duncan, M. J. Hardcastle, R. Kondapally, K. Małek, I. McCheyne, J. Sabater, T. Shimwell et al. (13 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038811

The LOFAR Two Meter Sky Survey

The best of both worlds: Combining LOFAR and Apertif to derive resolved radio spectral index images A9

R. Morganti, T. A. Oosterloo, M. Brienza, N. Jurlin, I. Prandoni, E. Orrù, S. S. Shabala, E. A. K. Adams, B. Adebahr, P. N. Best et al. (29 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039102

The LOFAR Two Meter Sky Survey

The contribution of discrete sources to the sky temperature at 144 MHz A10

M. J. Hardcastle, T. W. Shimwell, C. Tasse, P. N. Best, A. Drabent, M. J. Jarvis, I. Prandoni, H. J. A. Röttgering, J. Sabater and D. J. Schwarz

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038814

Cosmology (including clusters of galaxies)

The LOFAR Two Meter Sky Survey

Diffuse radio emission from galaxy clusters in the LOFAR Two-metre Sky Survey Deep Fields A11

E. Osinga, R. J. van Weeren, J. M. Boxelaar, G. Brunetti, A. Botteon, M. Brüggen, T. W. Shimwell, A. Bonafede, P. N. Best, M. Bonato et al. (9 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039076

Catalogs and data

The LOFAR Two Meter Sky Survey

Free Access

LOFAR Deep Fields: probing a broader population of polarized radio galaxies in ELAIS-N1 A12

N. Herrera Ruiz, S. P. O’Sullivan, V. Vacca, V. Jelić, B. Nikiel-Wroczyński, S. Bourke, J. Sabater, R.-J. Dettmar, G. Heald, C. Horellou et al. (12 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038896

Stellar atmospheres

The LOFAR Two Meter Sky Survey

Low-frequency monitoring of flare star binary CR Draconis: long-term electron-cyclotron maser emission A13

J. R. Callingham, B. J. S. Pope, A. D. Feinstein, H. K. Vedantham, T. W. Shimwell, P. Zarka, C. Tasse, L. Lamy, K. Veken, S. Toet et al. (5 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039144

Planets and planetary systems

The β Pictoris b Hill sphere transit campaign - I. Photometric limits to dust and rings A15

M. A. Kenworthy, S. N. Mellon, J. I. Bailey III, R. Stuik, P. Dorval, G. J. J. Talens, S. R. Crawford, E. E. Mamajek, I. Laginja, M. Ireland et al. (26 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040060

Stellar atmospheres

Gemini/Phoenix H-band analysis of the globular cluster AL 3 A16

B. Barbuy, H. Ernandes, S. O. Souza, R. Razera, T. Moura, J. Meléndez, A. Pérez-Villegas, M. Zoccali, D. Minniti, B. Dias et al. (2 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039761

Extragalactic astronomy

Open Access

MAGNUM survey: Compact jets causing large turmoil in galaxies - Enhanced line widths perpendicular to radio jets as tracers of jet-ISM interaction A17

G. Venturi, G. Cresci, A. Marconi, M. Mingozzi, E. Nardini, S. Carniani, F. Mannucci, A. Marasco, R. Maiolino, M. Perna et al. (3 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039869

Galactic structure, stellar clusters and populations

Infrared photometry and CaT spectroscopy of globular cluster M 28 (NGC 6626) A18

C. Moni Bidin, F. Mauro, R. Contreras Ramos, M. Zoccali, Y. Reinarz, M. Moyano, D. González-Díaz, S. Villanova, G. Carraro, J. Borissova et al. (5 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039192

Interstellar and circumstellar matter

Open Access

A highly non-Keplerian protoplanetary disc - Spiral structure in the gas disc of CQ Tau A19

L. Wölfer, S. Facchini, N. T. Kurtovic, R. Teague, E. F. van Dishoeck, M. Benisty, B. Ercolano, G. Lodato, A. Miotello, G. Rosotti et al. (2 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039469

Planets and planetary systems

A super-Earth on a close-in orbit around the M1V star GJ 740 - A HADES and CARMENES collaboration A20

B. Toledo-Padrón, A. Suárez Mascareño, J. I. González Hernández, R. Rebolo, M. Pinamonti, M. Perger, G. Scandariato, M. Damasso, A. Sozzetti, J. Maldonado et al. (16 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040099

Open Access

Gas terminal velocity from MIRO/Rosetta data using neural network approach A21

L. Rezac, A. Zorzi, P. Hartogh, O. Pinzón-Rodríguez, D. Marshall, N. Biver, D. Bockelée-Morvan, J. Crovisier, W. H. Ip, S. Gulkis and the MIRO team

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039427

The Sun and the Heliosphere

Transition to turbulence in nonuniform coronal loops driven by torsional Alfvén waves A22

Sergio Díaz-Suárez and Roberto Soler

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040161

Extragalactic astronomy

Open Access

H.E.S.S. and MAGIC observations of a sudden cessation of a very-high-energy γ-ray flare in PKS 1510−089 in May 2016 A23

H.E.S.S. Collaboration, H. Abdalla, R. Adam, F. Aharonian, F. Ait Benkhali, E. O. Angüner, C. Arcaro, C. Armand, T. Armstrong, H. Ashkar et al. (424 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038949

Interstellar and circumstellar matter

Press Release

Free Access

Water in star-forming regions: physics and chemistry from clouds to disks as probed by Herschel spectroscopy A24

E. F. van Dishoeck, L. E. Kristensen, J. C. Mottram, A. O. Benz, E. A. Bergin, P. Caselli, F. Herpin, M. R. Hogerheijde, D. Johnstone, R. Liseau et al. (43 more)

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039084

Extragalactic astronomy

A study of the H I gas fractions of galaxies at z ∼ 1 A25

Wei Zhang, Guinevere Kauffmann, Jing Wang, Yanmei Chen, Jian Fu and Hong Wu

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039878

Astronomical instrumentation

Free Access

A search for a fifth planet around HR 8799 using the star-hopping RDI technique at VLT/SPHERE A26

Z. Wahhaj, J. Milli, C. Romero, L. Cieza, A. Zurlo, A. Vigan, E. Peña, G. Valdes, F. Cantalloube, J. Girard and B. Pantoja

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038794

Extragalactic astronomy

Most massive double black hole 3C 454.3 and powerful gravitational wave radiation A27

A. E. Volvach, L. N. Volvach and M. G. Larionov

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039124

The Sun and the Heliosphere

IRIS observations of chromospheric heating by acoustic waves in solar quiet and active regions A28

V. Abbasvand, M. Sobotka, M. Švanda, P. Heinzel, W. Liu and L. Mravcová

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140344

Numerical methods and codes

Free Access

Transition region adaptive conduction (TRAC) in multidimensional magnetohydrodynamic simulations A29

Yu-Hao Zhou, Wen-Zhi Ruan, Chun Xia and Rony Keppens

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040254

Interstellar and circumstellar matter

First science highlights from SRG/eROSITA

Press Release

Open Access

Hoinga: a supernova remnant discovered in the SRG/eROSITA All-Sky Survey eRASS1 A30

W. Becker, N. Hurley-Walker, Ch. Weinberger, L. Nicastro, M. G. F. Mayer, A. Merloni and J. Sanders

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040156

Extragalactic astronomy

A blind ATCA HI survey of the Fornax galaxy cluster - Properties of the HI detections A31

A. Loni, P. Serra, D. Kleiner, L. Cortese, B. Catinella, B. Koribalski, T. H. Jarrett, D. Cs. Molnar, T. A. Davis, E. Iodice et al. (8 more)

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039803

A MeerKAT view of pre-processing in the Fornax A group A32

D. Kleiner, P. Serra, F. M. Maccagni, A. Venhola, K. Morokuma-Matsui, R. Peletier, E. Iodice, M. A. Raj, W. J. G. de Blok, A. Comrie et al. (11 more)

Published online: 08 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039898

Planets and planetary systems

Characterizing the dust content of disk substructures in TW Hydrae A33

E. Macías, O. Guerra-Alvarado, C. Carrasco-González, Á. Ribas, C. C. Espaillat, J. Huang and S. M. Andrews

Published online: 12 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039812

Galactic structure, stellar clusters and populations

Detection of new O-type stars in the obscured stellar cluster Tr 16-SE in the Carina Nebula with KMOS A34

T. Preibisch, S. Flaischlen, C. Göppl, B. Ercolano and V. Roccatagliata

Published online: 07 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039620

The Sun and the Heliosphere

Implementing the MULTI-VP coronal model in EUHFORIA: Test case results and comparisons with the WSA coronal model A35

E. Samara, R. F. Pinto, J. Magdalenić, N. Wijsen, V. Jerčić, C. Scolini, I. C. Jebaraj, L. Rodriguez and S. Poedts

Published online: 08 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039325

Stellar atmospheres

New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars - II. A grid of O-type stars in the Galaxy and the Magellanic Clouds A36

R. Björklund, J. O. Sundqvist, J. Puls and F. Najarro

Published online: 08 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038384

Stellar structure and evolution

The GRAVITY young stellar object survey - V. The orbit of the T Tauri binary star WW Cha A37

GRAVITY Collaboration, F. Eupen, L. Labadie, R. Grellmann, K. Perraut, W. Brandner, G. Duchêne, R. Köhler, J. Sanchez-Bermudez, R. Garcia Lopez et al. (53 more)

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039599

Interstellar and circumstellar matter

Open Access

CO⁺ as a probe of the origin of CO in diffuse interstellar clouds A38

M. Gerin and H. Liszt

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039915

Stellar structure and evolution

First science highlights from SRG/eROSITA

Observations of Her X-1 in low states during SRG/eROSITA all-sky survey A39

N. I. Shakura, D. A. Kolesnikov, P. S. Medvedev, R. A. Sunyaev, M. R. Gilfanov, K. A. Postnov and S. V. Molkov

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040145

Interstellar and circumstellar matter

Distribution of ionized, atomic, and PDR gas around S 1 in ρ Ophiuchus A40

B. Mookerjea, G. Sandell, V. S. Veena, R. Güsten, D. Riquelme, H. Wiesemeyer, F. Wyrowski and M. Mertens

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040217

Outflows, envelopes, and disks as evolutionary indicators in Lupus young stellar objects A41

M. M. Vazzano, M. Fernández-López, A. Plunkett, I. de Gregorio-Monsalvo, A. Santamaría-Miranda, S. Takahashi and C. Lopez

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039228

Extragalactic astronomy

Open Access

High angular resolution polarimetric imaging of the nucleus of NGC 1068 - Disentangling the polarising mechanisms A42

L. Grosset, D. Rouan, F. Marin, D. Gratadour, E. Lagadec, S. Hunziker, M. Montargès, Y. Magnard, M. Carle, J. Pragt and C. Petit

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038260

The Sun and the Heliosphere

LOFAR imaging of the solar corona during the 2015 March 20 solar eclipse A43

A. M. Ryan, P. T. Gallagher, E. P. Carley, M. A. Brentjens, P. C. Murphy, C. Vocks, D. E. Morosan, H. Reid, J. Magdalenic, F. Breitling et al. (5 more)

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039024

Catalogs and data

Free Access

Large-amplitude variables in Gaia Data Release 2 - Multi-band variability characterization A44

N. Mowlavi, L. Rimoldini, D. W. Evans, M. Riello, F. De Angeli, L. Palaversa, M. Audard, L. Eyer, P. Garcia-Lario, P. Gavras et al. (4 more)

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039450

Interstellar and circumstellar matter

The CALYPSO IRAM-PdBI survey of jets from Class 0 protostars - Exploring whether jets are ubiquitous in young stars A45

L. Podio, B. Tabone, C. Codella, F. Gueth, A. Maury, S. Cabrit, B. Lefloch, S. Maret, A. Belloche, P. André et al. (3 more)

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038429

Celestial mechanics and astrometry

Relativistic modeling of atmospheric occultations with time transfer functions A46

A. Bourgoin, M. Zannoni, L. Gomez Casajus, P. Tortora and P. Teyssandier

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040269

Extragalactic astronomy

Systematic search for lensed X-ray sources in the CLASH fields A47

Ang Liu, Paolo Tozzi, Piero Rosati, Pietro Bergamini, Gabriel Bartosch Caminha, Roberto Gilli, Claudio Grillo, Massimo Meneghetti, Amata Mercurio, Mario Nonino and Eros Vanzella

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040249

Astronomical instrumentation

Open Access

The SPIRou wavelength calibration for precise radial velocities in the near infrared A48

M. J. Hobson, F. Bouchy, N. J. Cook, E. Artigau, C. Moutou, I. Boisse, C. Lovis, A. Carmona, X. Delfosse, J.-F. Donati and the SPIRou Team

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038413

Planets and planetary systems

Open Access

Molecular composition of comet 46P/Wirtanen from millimetre-wave spectroscopy A49

N. Biver, D. Bockelée-Morvan, J. Boissier, R. Moreno, J. Crovisier, D. C. Lis, P. Colom, M. A. Cordiner, S. N. Milam, N. X. Roth et al. (4 more)

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040125

Numerical methods and codes

Free Access

Point source detection with fully convolutional networks - Performance in realistic microwave sky simulations A50

L. Bonavera, S. L. Suarez Gomez, J. González-Nuevo, M. M. Cueli, J. D. Santos, M. L. Sanchez, R. Muñiz and F. J. de Cos

Published online: 09 April 2021

DOI: https://doi.org/10.1051/0004-6361/201937171

The Sun and the Heliosphere

Pitch-angle distribution of accelerated electrons in 3D current sheets with magnetic islands A51

V. Zharkova and Q. Xia

Published online: 12 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039220

Astrophysical processes

Coagulation of inertial particles in supersonic turbulence A52

Xiang-Yu Li and Lars Mattsson

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040068

The Sun and the Heliosphere

Multichannel autocalibration for the Atmospheric Imaging Assembly using machine learning A53

Luiz F. G. Dos Santos, Souvik Bose, Valentina Salvatelli, Brad Neuberg, Mark C. M. Cheung, Miho Janvier, Meng Jin, Yarin Gal, Paul Boerner and Atılım Güneş Baydin

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040051

Signatures of ubiquitous magnetic reconnection in the deep atmosphere of sunspot penumbrae A54

Luc H. M. Rouppe van der Voort, Jayant Joshi, Vasco M. J. Henriques and Souvik Bose

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040171

Stellar atmospheres

Open Access

Multi-instrumental view of magnetic fields and activity of ϵ Eridani with SPIRou, NARVAL, and TESS A55

P. Petit, C. P. Folsom, J.-F. Donati, L. Yu, J.-D. do Nascimento Jr., S. V. Jeffers, S. C. Marsden, J. Morin and A. A. Vidotto

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040027

Planets and planetary systems

Open Access

Numerical modeling of lander interaction with a low-gravity asteroid regolith surface - II. Interpreting the successful landing of Hayabusa2 MASCOT A56

Florian Thuillet, Yun Zhang, Patrick Michel, Jens Biele, Shingo Kameda, Seiji Sugita, Eri Tatsumi, Stephen R. Schwartz and Ronald-Louis Ballouz

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/201936128

Interstellar and circumstellar matter

A survey of IRAS young stellar object candidates - Searching for large-scale Herbig-Haro objects A57

Rosario López, Angels Riera, Robert Estalella and Gabriel Gómez

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202037752

Planets and planetary systems

Tracking Advanced Planetary Systems (TAPAS) with HARPS-N - VII. Elder suns with low-mass companions A58

A. Niedzielski, E. Villaver, M. Adamów, K. Kowalik, A. Wolszczan and G. Maciejewski

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202037892

Open Access

Medium-resolution spectrum of the exoplanet HIP 65426 b A59

S. Petrus, M. Bonnefoy, G. Chauvin, B. Charnay, G.-D. Marleau, R. Gratton, A.-M. Lagrange, J. Rameau, C. Mordasini, M. Nowak et al. (11 more)

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038914

Cosmology (including clusters of galaxies)

Open Access

γ-ray detection toward the Coma cluster with Fermi-LAT: Implications for the cosmic ray content in the hadronic scenario A60

R. Adam, H. Goksu, S. Brown, L. Rudnick and C. Ferrari

Published online: 12 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039660

Atomic, molecular, and nuclear data

Free Access

Infrared action spectroscopy of doubly charged PAHs and their contribution to the aromatic infrared bands A61

S. Banhatti, J. Palotás, P. Jusko, B. Redlich, J. Oomens, S. Schlemmer and S. Brünken

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039744

Interstellar and circumstellar matter

Unveiling the traits of massive young stellar objects through a multi-scale survey A62

A. J. Frost, R. D. Oudmaijer, W. J. de Wit and S. L. Lumsden

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039748

Cosmology (including clusters of galaxies)

Open Access

Jellyfish galaxy candidates in MACS J0717.5+3745 and 39 other clusters of the DAFT/FADA and CLASH surveys A63

F. Durret, S. Chiche, C. Lobo and M. Jauzac

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039770

Extragalactic astronomy

Open Access

Star formation quenching stages of active and non-active galaxies A64

V. Kalinova, D. Colombo, S. F. Sánchez, K. Kodaira, R. García-Benito, R. González Delgado, E. Rosolowsky and E. A. D. Lacerda

Published online: 12 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039896

Galactic structure, stellar clusters and populations

Mapping the core of the Tarantula Nebula with VLT-MUSE - II. The spectroscopic Hertzsprung-Russell diagram of OB stars in NGC 2070 A65

N. Castro, P. A. Crowther, C. J. Evans, J. S. Vink, J. Puls, A. Herrero, M. Garcia, F. J. Selman, M. M. Roth and S. Simón-Díaz

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040008

Interstellar and circumstellar matter

Open Access

Physical and chemical structure of high-mass star-forming regions - Unraveling chemical complexity with CORE: the NOEMA large program A66

C. Gieser, H. Beuther, D. Semenov, A. Ahmadi, S. Suri, T. Möller, M. T. Beltrán, P. Klaassen, Q. Zhang, J. S. Urquhart et al. (23 more)

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039670

Atomic, molecular, and nuclear data

Free Access

Electron-impact excitation of Ni II A67

N. L. Dunleavy, C. A. Ramsbottom and C. P. Ballance

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038254

Free Access

Empirical determination of atomic line parameters of the 1.5 μm spectral region A68

J. C. Trelles Arjona, B. Ruiz Cobo and M. J. Martínez González

Published online: 12 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038941

Planets and planetary systems

Pushing planets into an inner cavity by a resonant chain A69

S. Ataiee and W. Kley

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038772

Galactic structure, stellar clusters and populations

APOGEE spectroscopic evidence for chemical anomalies in dwarf galaxies: The case of M 54 and Sagittarius A70

José G. Fernández-Trincado, Timothy C. Beers, Dante Minniti, Christian Moni Bidin, Beatriz Barbuy, Sandro Villanova, Doug Geisler, Richard R. Lane, Alexandre Roman-Lopes and Dmitry Bizyaev

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140306

Planets and planetary systems

TESS unveils the optical phase curve of KELT-1b - Thermal emission and ellipsoidal variation from the brown dwarf companion along with the stellar activity A71

C. von Essen, M. Mallonn, A. Piette, N. B. Cowan, N. Madhusudhan, E. Agol, V. Antoci, K. Poppenhaeger, K. G. Stassun, S. Khalafinejad and G. Tautvaišienė

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038524

Interstellar and circumstellar matter

Chemical modeling of the complex organic molecules in the extended region around Sagittarius B2 A72

Yao Wang, Fujun Du, Dmitry Semenov, Hongchi Wang and Juan Li

Published online: 13 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140411

Cosmology (including clusters of galaxies)

Persistent homology in cosmic shear: Constraining parameters with topological data analysis A74

Sven Heydenreich, Benjamin Brück and Joachim Harnois-Déraps

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039048

Planets and planetary systems

A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) A75

A. Sozzetti, M. Damasso, A. S. Bonomo, Y. Alibert, S. G. Sousa, V. Adibekyan, M. R. Zapatero Osorio, J. I. González Hernández, S. C. C. Barros, J. Lillo-Box et al. (38 more)

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040034

Interstellar and circumstellar matter

Quantum study of reaction O (³P) + H₂ (v,j) → OH + H: OH formation in strongly UV-irradiated gas A76

A. Veselinova, M. Agúndez, J. R. Goicoechea, M. Menéndez, A. Zanchet, E. Verdasco, P. G. Jambrina and F. J. Aoiz

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140428

The Sun and the Heliosphere

Finding the mechanism of wave energy flux damping in solar pores using numerical simulations A77

J. M. Riedl, C. A. Gilchrist-Millar, T. Van Doorsselaere, D. B. Jess and S. D. T. Grant

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040163

Galactic structure, stellar clusters and populations

Milky Way archaeology using RR Lyrae and type II Cepheids - I. The Orphan stream in 7D using RR Lyrae stars A78

Z. Prudil, M. Hanke, B. Lemasle, J. Crestani, V. F. Braga, M. Fabrizio, A. J. Koch-Hansen, G. Bono, E. K. Grebel, N. Matsunaga et al. (12 more)

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140422

Stellar atmospheres

Stochastic light variations in hot stars from wind instability: finding photometric signatures and testing against the TESS data A79

J. Krtička and A. Feldmeier

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040148

Planets and planetary systems

Understanding the atmospheric properties and chemical composition of the ultra-hot Jupiter HAT-P-7b - III. Changing ionisation and the emergence of an ionosphere A80

Ch. Helling, M. Worters, D. Samra, K. Molaverdikhani and N. Iro

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039699

Astrophysical processes

Open Access

Inferring possible magnetic field strength of accreting inflows in EXor-type objects from scaled laboratory experiments A81

K. Burdonov, R. Bonito, T. Giannini, N. Aidakina, C. Argiroffi, J. Béard, S. N. Chen, A. Ciardi, V. Ginzburg, K. Gubskiy et al. (21 more)

Published online: 16 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040036

Extragalactic astronomy

Open Access

Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron - IV. The quasar 3C 345 at 18 cm: Magnetic field structure and brightness temperature A82

F. M. Pötzl, A. P. Lobanov, E. Ros, J. L. Gómez, G. Bruni, U. Bach, A. Fuentes, L. I. Gurvits, D. L. Jauncey, Y. Y. Kovalev et al. (5 more)

Published online: 14 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039493

Atomic, molecular, and nuclear data

Free Access

Binding energies and sticking coefficients of H₂ on crystalline and amorphous CO ice A84

G. Molpeceres, V. Zaverkin, N. Watanabe and J. Kästner

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040023

Planets and planetary systems

Revisiting the analysis of HW Virginis eclipse timing data - I. A frequentist data modeling approach and a dynamical stability analysis A85

Ekrem M. Esmer, Özgür Baştürk, Tobias C. Hinse, Selim O. Selam and Alexandre C. M. Correia

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038640

Extragalactic astronomy

Survival in an extreme environment: Which is the closest globular cluster to the Galactic centre? A86

D. Minniti, J. G. Fernández-Trincado, L. C. Smith, P. W. Lucas, M. Gómez and J. B. Pullen

Published online: 16 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039820

Interstellar and circumstellar matter

Self-scattering on large, porous grains in protoplanetary disks with dust settling A87

R. Brunngräber and S. Wolf

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040033

Planets and planetary systems

Open Access

In search of Bennu analogs: Hapke modeling of meteorite mixtures A88

F. Merlin, J. D. P. Deshapriya, S. Fornasier, M. A. Barucci, A. Praet, P. H. Hasselmann, B. E. Clark, V. E. Hamilton, A. A. Simon, D. C. Reuter et al. (4 more)

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140343

Celestial mechanics and astrometry

Secular changes in length of day: Effect of the mass redistribution A89

T. Baenas, A. Escapa and J. M. Ferrándiz

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202140356

Interstellar and circumstellar matter

Highlight

Multiwavelength analysis of the X-ray spur and southeast of the Large Magellanic Cloud A90

J. R. Knies, M. Sasaki, Y. Fukui, K. Tsuge, F. Haberl, S. Points, P. J. Kavanagh and M. D. Filipović

Published online: 16 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038488

Stellar structure and evolution

A comparison of the dynamical and model-derived parameters of the pulsating eclipsing binary KIC 9850387 A91

S. Sekaran, A. Tkachenko, C. Johnston and C. Aerts

Published online: 16 April 2021

DOI: https://doi.org/10.1051/0004-6361/202040154

Interstellar and circumstellar matter

New mid-infrared imaging constraints on companions and protoplanetary disks around six young stars A92

D. J. M. Petit dit de la Roche, N. Oberg, M. E. van den Ancker, I. Kamp, R. van Boekel, D. Fedele, V. D. Ivanov, M. Kasper, H. U. Käufl, M. Kissler-Patig et al. (6 more)

Published online: 15 April 2021

DOI: https://doi.org/10.1051/0004-6361/202039261

Extragalactic astronomy

Free Access

Erratum

SEEDisCS - I. Molecular gas in galaxy clusters and their large-scale structure: The case of CL1411.1–1148 at z ∼ 0.5 (Corrigendum) C1

D. Spérone-Longin, P. Jablonka, F. Combes, G. Castignani, M. Krips, G. Rudnick, D. Zaritsky, R. A. Finn, G. De Lucia and V. Desai

Published online: 12 April 2021

DOI: https://doi.org/10.1051/0004-6361/202038904e

Astronomy & Astrophysics

Volume 648 (April 2021) (open volume)

The LOFAR Two Meter Sky Survey E1

Letters to the Editor

Formation of giant planets with large metal masses and metal fractions via giant impacts in a rapidly dissipating disk L1

Close encounters with the Death Star: Interactions between collapsed bodies and the Solar System L2

TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and C4S and detection of C5S L3

First direct identification of the barlens vertical structure in galaxy models L4

The G-dwarf distribution in star-forming galaxies: A tug of war between infall and outflow L5

Astronomical instrumentation

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - I. Direction-dependent calibration and imaging A1

Catalogs and data

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - II. The ELAIS-N1 LOFAR deep field A2

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - III. Host-galaxy identifications and value added catalogues A3

The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1 - IV. Photometric redshifts and stellar masses A4

Extragalactic astronomy

Extremely deep 150 MHz source counts from the LoTSS Deep Fields A5

The LOFAR Two-metre Sky Survey Deep Fields - The star-formation rate–radio luminosity relation at low frequencies A6

LOFAR properties of SILVERRUSH Lyα emitter candidates in the ELAIS-N1 field A7

The bright end of the infrared luminosity functions and the abundance of hyperluminous infrared galaxies A8

The best of both worlds: Combining LOFAR and Apertif to derive resolved radio spectral index images A9

The contribution of discrete sources to the sky temperature at 144 MHz A10

Cosmology (including clusters of galaxies)

Diffuse radio emission from galaxy clusters in the LOFAR Two-metre Sky Survey Deep Fields A11

Catalogs and data

LOFAR Deep Fields: probing a broader population of polarized radio galaxies in ELAIS-N1 A12

Stellar atmospheres

Low-frequency monitoring of flare star binary CR Draconis: long-term electron-cyclotron maser emission A13

Planets and planetary systems

The β Pictoris b Hill sphere transit campaign - I. Photometric limits to dust and rings A15

Stellar atmospheres

Gemini/Phoenix H-band analysis of the globular cluster AL 3 A16

Extragalactic astronomy

MAGNUM survey: Compact jets causing large turmoil in galaxies - Enhanced line widths perpendicular to radio jets as tracers of jet-ISM interaction A17

Galactic structure, stellar clusters and populations

Infrared photometry and CaT spectroscopy of globular cluster M 28 (NGC 6626) A18

Interstellar and circumstellar matter

A highly non-Keplerian protoplanetary disc - Spiral structure in the gas disc of CQ Tau A19

Planets and planetary systems

A super-Earth on a close-in orbit around the M1V star GJ 740 - A HADES and CARMENES collaboration A20

Gas terminal velocity from MIRO/Rosetta data using neural network approach A21

The Sun and the Heliosphere

Transition to turbulence in nonuniform coronal loops driven by torsional Alfvén waves A22

Extragalactic astronomy

H.E.S.S. and MAGIC observations of a sudden cessation of a very-high-energy γ-ray flare in PKS 1510−089 in May 2016 A23

Interstellar and circumstellar matter

Water in star-forming regions: physics and chemistry from clouds to disks as probed by Herschel spectroscopy A24

Extragalactic astronomy

A study of the H I gas fractions of galaxies at z ∼ 1 A25

Astronomical instrumentation

A search for a fifth planet around HR 8799 using the star-hopping RDI technique at VLT/SPHERE A26

Extragalactic astronomy

Most massive double black hole 3C 454.3 and powerful gravitational wave radiation A27

The Sun and the Heliosphere

IRIS observations of chromospheric heating by acoustic waves in solar quiet and active regions A28

Numerical methods and codes

Transition region adaptive conduction (TRAC) in multidimensional magnetohydrodynamic simulations A29

Interstellar and circumstellar matter

Hoinga: a supernova remnant discovered in the SRG/eROSITA All-Sky Survey eRASS1 A30

Extragalactic astronomy

A blind ATCA HI survey of the Fornax galaxy cluster - Properties of the HI detections A31

A MeerKAT view of pre-processing in the Fornax A group A32

Planets and planetary systems

Characterizing the dust content of disk substructures in TW Hydrae A33

Galactic structure, stellar clusters and populations

Detection of new O-type stars in the obscured stellar cluster Tr 16-SE in the Carina Nebula with KMOS A34

The Sun and the Heliosphere

Implementing the MULTI-VP coronal model in EUHFORIA: Test case results and comparisons with the WSA coronal model A35

Stellar atmospheres

New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars - II. A grid of O-type stars in the Galaxy and the Magellanic Clouds A36

Stellar structure and evolution

The GRAVITY young stellar object survey - V. The orbit of the T Tauri binary star WW Cha A37

Interstellar and circumstellar matter

CO+ as a probe of the origin of CO in diffuse interstellar clouds A38

Stellar structure and evolution

Observations of Her X-1 in low states during SRG/eROSITA all-sky survey A39

Interstellar and circumstellar matter

Distribution of ionized, atomic, and PDR gas around S 1 in ρ Ophiuchus A40

Outflows, envelopes, and disks as evolutionary indicators in Lupus young stellar objects A41

Extragalactic astronomy

TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H₂CCS, H₂CCCS, and C₄S and detection of C₅S L3

CO⁺ as a probe of the origin of CO in diffuse interstellar clouds A38

Quantum study of reaction O (³P) + H₂ (v,j) → OH + H: OH formation in strongly UV-irradiated gas A76