Astronomy & Astrophysics (A&A)

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Gaia Early Data Release 3 (open issue)
The Solar Orbiter mission (open issue)
Planck 2018 results
The LOFAR Two Meter Sky Survey (open issue)

Free Access

Jet-like structures from PSR J1135–6055

P. Bordas and X. Zhang

A&A, 644 (2020) L4

Published online: 04 December 2020
Ionization potential depression and ionization balance in dense carbon plasma under solar and stellar interior conditions

Jiaolong Zeng, Yongjun Li, Yong Hou, Cheng Gao and Jianmin Yuan

A&A, 644 (2020) A92

Published online: 04 December 2020
Open Access

Exploiting NIKA2/XMM-Newton imaging synergy for intermediate-mass high-z galaxy clusters within the NIKA2 SZ large program - Observations of ACT-CL J0215.4+0030 at z ∼ 0.9

F. Kéruzoré, F. Mayet, G. W. Pratt, R. Adam, P. Ade, P. André, A. Andrianasolo, M. Arnaud, H. Aussel, I. Bartalucci et al. (33 more)

A&A, 644 (2020) A93

Published online: 04 December 2020
Sub-milliarcsecond imaging of a bright flare and ejection event in the extragalactic jet 3C 111

R. Schulz, M. Kadler, E. Ros, M. Perucho, T. P. Krichbaum, I. Agudo, T. Beuchert, M. Lindqvist, K. Mannheim, J. Wilms and J. A. Zensus

A&A, 644 (2020) A85

Published online: 04 December 2020
Probing the elliptical orbital configuration of the close binary of supermassive black holes with differential interferometry

Andjelka B. Kovačević, Yu-Yang Songsheng, Jian-Min Wang and Luka Č. Popović

A&A, 644 (2020) A88

Published online: 04 December 2020
Separation between RR Lyrae and type II Cepheids and their importance for a distance determination: the case of omega Cen

V. F. Braga, G. Bono, G. Fiorentino, P. B. Stetson, M. Dall’Ora, M. Salaris, R. da Silva, M. Fabrizio, S. Marinoni, M. P. Marrese et al. (4 more)

A&A, 644 (2020) A95

Published online: 04 December 2020
Multiple populations of Hβ emission line stars in the Large Magellanic Cloud cluster NGC 1971

Andrés E. Piatti

A&A, 644 (2020) A98

Published online: 04 December 2020
Open Access

The EDGE-CALIFA survey: exploring the role of molecular gas on galaxy star formation quenching

D. Colombo, S. F. Sanchez, A. D. Bolatto, V. Kalinova, A. Weiß, T. Wong, E. Rosolowsky, S. N. Vogel, J. Barrera-Ballesteros, H. Dannerbauer et al. (4 more)

A&A, 644 (2020) A97

Published online: 04 December 2020

Most downloaded articles

183	Free Access The reaction between NH₃⁺ and CH₃COOH: a possible process for the formation of glycine precursors in the interstellar medium L. Largo, P. Redondo, V. M. Rayón, A. Largo and C. Barrientos A&A, 516 (2010) A79 Published online: 19 July 2010
133	Planck 2018 results Free Access Planck 2018 results - VI. Cosmological parameters Planck Collaboration, N. Aghanim, Y. Akrami, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo et al. (172 more) A&A, 641 (2020) A6 Published online: 11 September 2020
131	Gaia Data Release 2 Open Access Gaia Data Release 2 - Observational Hertzsprung-Russell diagrams Gaia Collaboration, C. Babusiaux, F. van Leeuwen, M. A. Barstow, C. Jordi, A. Vallenari, D. Bossini, A. Bressan, T. Cantat-Gaudin, M. van Leeuwen et al. (443 more) A&A, 616 (2018) A10 Published online: 10 August 2018
119	Gaia Data Release 2 Free Access Gaia Data Release 2 - Using Gaia parallaxes X. Luri, A. G. A. Brown, L. M. Sarro, F. Arenou, C. A. L. Bailer-Jones, A. Castro-Ginard, J. de Bruijne, T. Prusti, C. Babusiaux and H. E. Delgado A&A, 616 (2018) A9 Published online: 10 August 2018
119	Gaia Data Release 2 Press Release Free Access Gaia Data Release 2 - Summary of the contents and survey properties Gaia Collaboration, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, C. Babusiaux, C. A. L. Bailer-Jones, M. Biermann, D. W. Evans, L. Eyer et al. (444 more) A&A, 616 (2018) A1 Published online: 10 August 2018

Volume 644 (December 2020)(open volume)
1. Molecular-cloud origin from atomic-shell compression (Bracco, A., et al., 644, A5)
2. Dust trail from asteroid disruption in Earth atmosphere (Borovička, J., et al., 644, A58)
See the table of contents
Volume 643 (November 2020)
1. Collage of redshift z ∼ 5 galaxies imaged by the ALPINE survey in the [CII] 158 μm line with ALMA (Le Fèvre, O., et al., 643, A1)
2. Stellar properties of the retrograde and prograde Milky Way disc (Kordopatis, G., et al., 643, A69)
3. NGC 1316 and the Villarica volcano – dusty outflows (Richtler, T., et al., 643, A120)
4. Changing radio beam pattern of pulsar B in the Double Pulsar (Noutsos, A., et al., 643, A143)
See the table of contents
Volume 642 (October 2020)
1. Artist’s impression of Solar Orbiter (ESA/ATG Medialab) ("The Solar Orbiter mission" Special Issue, 642)
2. Ceres' visible spectral slope from the VIR spectrometer (Rousseau, B., et al., 642, A74)
3. A global model of particle acceleration in shocks (Cerutti, B., & Giacinti, G., 642, A123)
4. Atomic hydrogen emission toward the Galactic plane (Soler, J. D., et al., 642, A163 )
See the table of contents

1456	Press Release Open Access First detection of stacked X-ray emission from cosmic web filaments H. Tanimura, N. Aghanim, A. Kolodzig, M. Douspis and N. Malavasi A&A, 643 (2020) L2 Published online: 06 November 2020
898	Free Access The chromosphere above sunspots at millimeter wavelengths M. Loukitcheva, S. K. Solanki and S. M. White A&A, 561 (2014) A133 Published online: 22 January 2014
730	Gaia Data Release 2 Open Access Gaia Data Release 2 - Observational Hertzsprung-Russell diagrams Gaia Collaboration, C. Babusiaux, F. van Leeuwen, M. A. Barstow, C. Jordi, A. Vallenari, D. Bossini, A. Bressan, T. Cantat-Gaudin, M. van Leeuwen et al. (443 more) A&A, 616 (2018) A10 Published online: 10 August 2018
691	Press Release Open Access The history of dynamics and stellar feedback revealed by the H I filamentary structure in the disk of the Milky Way J. D. Soler, H. Beuther, J. Syed, Y. Wang, L. D. Anderson, S. C. O. Glover, P. Hennebelle, M. Heyer, Th. Henning, A. F. Izquierdo et al. (12 more) A&A, 642 (2020) A163 Published online: 21 October 2020
676	Free Access The reaction between NH₃⁺ and CH₃COOH: a possible process for the formation of glycine precursors in the interstellar medium L. Largo, P. Redondo, V. M. Rayón, A. Largo and C. Barrientos A&A, 516 (2010) A79 Published online: 19 July 2010

8407	Free Access Solar Fe abundance and magnetic fields - Towards a consistent reference metallicity D. Fabbian, F. Moreno-Insertis, E. Khomenko and Å. Nordlund A&A, 548 (2012) A35 Published online: 15 November 2012
8181	Free Access Spectroscopic confirmation of the low-latitude object FSR 1716 as an old globular cluster Andreas Koch, Andrea Kunder and Jennifer Wojno A&A, 605 (2017) A128 Published online: 22 September 2017
5812	Free Access The age-activity-rotation relationship in solar-type stars G. Pace and L. Pasquini A&A, 426 3 (2004) 1021-1034 Published online: 18 October 2004
5137	Free Access Constraints on the non-thermal emission from η Carinae’s blast wave of 1843 J. L. Skilton, W. Domainko, J. A. Hinton, D. I. Jones, S. Ohm and J. S. Urquhart A&A, 539 (2012) A101 Published online: 29 February 2012
3507	Open Access Low-cost precursor of an interstellar mission René Heller, Guillem Anglada-Escudé, Michael Hippke and Pierre Kervella A&A, 641 (2020) A45 Published online: 09 September 2020

Astronomy & Astrophysics

Latest highlightsAll

Latest volumeAll

PUBLISH WITH A&A

Latest highlightsAll

Latest volumeAll

PUBLISH WITH A&A

Latest special issuesAll

Jet-like structures from PSR J1135–6055

Ionization potential depression and ionization balance in dense carbon plasma under solar and stellar interior conditions

Exploiting NIKA2/XMM-Newton imaging synergy for intermediate-mass high-z galaxy clusters within the NIKA2 SZ large program - Observations of ACT-CL J0215.4+0030 at z ∼ 0.9

Sub-milliarcsecond imaging of a bright flare and ejection event in the extragalactic jet 3C 111

Probing the elliptical orbital configuration of the close binary of supermassive black holes with differential interferometry

Separation between RR Lyrae and type II Cepheids and their importance for a distance determination: the case of omega Cen

Multiple populations of Hβ emission line stars in the Large Magellanic Cloud cluster NGC 1971

The EDGE-CALIFA survey: exploring the role of molecular gas on galaxy star formation quenching

The reaction between NH₃⁺ and CH₃COOH: a possible process for the formation of glycine precursors in the interstellar medium

Planck 2018 results - VI. Cosmological parameters

Gaia Data Release 2 - Observational Hertzsprung-Russell diagrams

Gaia Data Release 2 - Using Gaia parallaxes

Gaia Data Release 2 - Summary of the contents and survey properties

First detection of stacked X-ray emission from cosmic web filaments

The chromosphere above sunspots at millimeter wavelengths

Gaia Data Release 2 - Observational Hertzsprung-Russell diagrams

The history of dynamics and stellar feedback revealed by the H I filamentary structure in the disk of the Milky Way

The reaction between NH₃⁺ and CH₃COOH: a possible process for the formation of glycine precursors in the interstellar medium

Solar Fe abundance and magnetic fields - Towards a consistent reference metallicity

Spectroscopic confirmation of the low-latitude object FSR 1716 as an old globular cluster

The age-activity-rotation relationship in solar-type stars

Constraints on the non-thermal emission from η Carinae’s blast wave of 1843

Low-cost precursor of an interstellar mission

Volume 644 (December 2020)(open volume)

Volume 643 (November 2020)

Volume 642 (October 2020)

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