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https://doi.org/10.1093/mnras/stae1767

Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815

Angelica Psaridi, Hugh Osborn, François Bouchy, Monika Lendl, Léna Parc, Nicolas Billot, Christopher Broeg, Sérgio G. Sousa, Vardan Adibekyan, Mara Attia, Andrea Bonfanti, Hritam Chakraborty, Karen A. Collins, Jeanne Davoult, Elisa Delgado-Mena, Nolan Grieves, Tristan Guillot, Alexis Heitzmann, Ravit Helled, Coel Hellier, Jon M. Jenkins, Henrik Knierim, Andreas Krenn, Jack J. Lissauer, Rafael Luque, et al.
Astronomy & Astrophysics 685 A5 (2024)
https://doi.org/10.1051/0004-6361/202348678

Characterisation of the TOI-421 planetary system using CHEOPS, TESS, and archival radial velocity data

A. F. Krenn, D. Kubyshkina, L. Fossati, J. A. Egger, A. Bonfanti, A. Deline, D. Ehrenreich, M. Beck, W. Benz, J. Cabrera, T. G. Wilson, A. Leleu, S. G. Sousa, V. Adibekyan, A. C. M. Correia, Y. Alibert, L. Delrez, M. Lendl, J. A. Patel, J. Venturini, R. Alonso, G. Anglada, J. Asquier, T. Bárczy, D. Barrado Navascues, et al.
Astronomy & Astrophysics 686 A301 (2024)
https://doi.org/10.1051/0004-6361/202348584

Stellar population astrophysics with the TNG

Nagaraj Vernekar, Sara Lucatello, Angela Bragaglia, Andrea Miglio, Nicoletta Sanna, Gloria Andreuzzi and Antonio Frasca
Astronomy & Astrophysics 684 A85 (2024)
https://doi.org/10.1051/0004-6361/202348133

Oxygen, sulfur, and iron radial abundance gradients of classical Cepheids across the Galactic thin disk

R. da Silva, V. D’Orazi, M. Palla, G. Bono, V. F. Braga, M. Fabrizio, B. Lemasle, E. Spitoni, F. Matteucci, H. Jönsson, V. Kovtyukh, L. Magrini, M. Bergemann, M. Dall’Ora, I. Ferraro, G. Fiorentino, P. François, G. Iannicola, L. Inno, R.-P. Kudritzki, N. Matsunaga, M. Monelli, M. Nonino, C. Sneden, J. Storm, et al.
Astronomy & Astrophysics 678 A195 (2023)
https://doi.org/10.1051/0004-6361/202346982

TOI-969: a late-K dwarf with a hot mini-Neptune in the desert and an eccentric cold Jupiter

J. Lillo-Box, D. Gandolfi, D. J. Armstrong, K. A. Collins, L. D. Nielsen, R. Luque, J. Korth, S. G. Sousa, S. N. Quinn, L. Acuña, S. B. Howell, G. Morello, C. Hellier, S. Giacalone, S. Hoyer, K. Stassun, E. Palle, A. Aguichine, O. Mousis, V. Adibekyan, T. Azevedo Silva, D. Barrado, M. Deleuil, J. D. Eastman, A. Fukui, et al.
Astronomy & Astrophysics 669 A109 (2023)
https://doi.org/10.1051/0004-6361/202243879

The young mini-Neptune HD 207496b that is either a naked core or on the verge of becoming one

S. C. C. Barros, O. D. S. Demangeon, D. J. Armstrong, et al.
Astronomy & Astrophysics 673 A4 (2023)
https://doi.org/10.1051/0004-6361/202245741

TOI-908: a planet at the edge of the Neptune desert transiting a G-type star

Faith Hawthorn, Daniel Bayliss, David J Armstrong, Jorge Fernández Fernández, Ares Osborn, Sérgio G Sousa, Vardan Adibekyan, Jeanne Davoult, Karen A Collins, Yann Alibert, Susana C C Barros, François Bouchy, Matteo Brogi, David R Ciardi, Tansu Daylan, Elisa Delgado Mena, Olivier D S Demangeon, Rodrigo F Díaz, Tianjun Gan, Keith Horne, Sergio Hoyer, Jon M Jenkins, Eric L N Jensen, John F Kielkopf, Veselin Kostov, et al.
Monthly Notices of the Royal Astronomical Society 524 (3) 3877 (2023)
https://doi.org/10.1093/mnras/stad1840

TOI-332 b: a super dense Neptune found deep within the Neptunian desert

Ares Osborn, David J Armstrong, Jorge Fernández Fernández, Henrik Knierim, Vardan Adibekyan, Karen A Collins, Elisa Delgado-Mena, Malcolm Fridlund, João Gomes da Silva, Coel Hellier, David G Jackson, George W King, Jorge Lillo-Box, Rachel A Matson, Elisabeth C Matthews, Nuno C Santos, Sérgio G Sousa, Keivan G Stassun, Thiam-Guan Tan, George R Ricker, Roland Vanderspek, David W Latham, Sara Seager, Joshua N Winn, Jon M Jenkins, et al.
Monthly Notices of the Royal Astronomical Society 526 (1) 548 (2023)
https://doi.org/10.1093/mnras/stad2575

Refined parameters of the HD 22946 planetary system and the true orbital period of planet d

Z. Garai, H. P. Osborn, D. Gandolfi, et al.
Astronomy & Astrophysics 674 A44 (2023)
https://doi.org/10.1051/0004-6361/202345943

ESNet: Estimating Stellar Parameters from LAMOST Low-Resolution Stellar Spectra

Kun Wang, Bo Qiu, A-li Luo, Fuji Ren and Xia Jiang
Universe 9 (9) 416 (2023)
https://doi.org/10.3390/universe9090416

TESS and CHEOPS discover two warm sub-Neptunes transiting the bright K-dwarf HD 15906

A Tuson, D Queloz, H P Osborn, et al.
Monthly Notices of the Royal Astronomical Society 523 (2) 3090 (2023)
https://doi.org/10.1093/mnras/stad1369

The planetary system around HD 190622 (TOI-1054)

J. Cabrera, D. Gandolfi, L. M. Serrano, Sz. Csizmadia, J. A. Egger, Ph. Baumeister, A. Krenn, W. Benz, A. Deline, H.-G. Florén, A. Collier Cameron, V. Adibekyan, Y. Alibert, S. E. Bellomo, L. Delrez, L. Fossati, A. Fortier, S. Grziwa, S. Hoyer, A. Bonfanti, S. Salmon, S. G. Sousa, T. G. Wilson, J. Alarcón, R. Alonso, et al.
Astronomy & Astrophysics 675 A183 (2023)
https://doi.org/10.1051/0004-6361/202245774

A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067

R. Luque, H. P. Osborn, A. Leleu, E. Pallé, A. Bonfanti, O. Barragán, T. G. Wilson, C. Broeg, A. Collier Cameron, M. Lendl, P. F. L. Maxted, Y. Alibert, D. Gandolfi, J.-B. Delisle, M. J. Hooton, J. A. Egger, G. Nowak, M. Lafarga, D. Rapetti, J. D. Twicken, J. C. Morales, I. Carleo, J. Orell-Miquel, V. Adibekyan, R. Alonso, et al.
Nature 623 (7989) 932 (2023)
https://doi.org/10.1038/s41586-023-06692-3

Seismic and spectroscopic analysis of nine bright red giants observed by Kepler

H R Coelho, A Miglio, T Morel, N Lagarde, D Bossini, W J Chaplin, S Degl’Innocenti, M Dell’Omodarme, R A Garcia, R Handberg, S Hekker, D Huber, M N Lund, S Mathur, P G Prada Moroni, B Mosser, A Serenelli, M Rainer, J D do Nascimento, E Poretti, P Mathias, G Valle, P Dal Tio and T Duarte
Monthly Notices of the Royal Astronomical Society 527 (3) 8535 (2023)
https://doi.org/10.1093/mnras/stad3727

Discovery and characterization of two Neptune-mass planets orbiting HD 212729 with TESS

David J Armstrong, Ares Osborn, Vardan Adibekyan, Elisa Delgado-Mena, Saeed Hojjatpanah, Steve B Howell, Sergio Hoyer, Henrik Knierim, Sérgio G Sousa, Keivan G Stassun, Dimitri Veras, David R Anderson, Daniel Bayliss, François Bouchy, Christopher J Burke, Jessie L Christiansen, Xavier Dumusque, Marcelo Aron Fetzner Keniger, Andreas Hadjigeorghiou, Faith Hawthorn, Ravit Helled, Jon M Jenkins, David W Latham, Jorge Lillo-Box, Louise D Nielsen, et al.
Monthly Notices of the Royal Astronomical Society 524 (4) 5804 (2023)
https://doi.org/10.1093/mnras/stad2183

Decoding the compositions of four bright r-process-enhanced stars

Pallavi Saraf, Carlos Allende Prieto, Thirupathi Sivarani, Avrajit Bandyopadhyay, Timothy C Beers and A Susmitha
Monthly Notices of the Royal Astronomical Society 524 (4) 5607 (2023)
https://doi.org/10.1093/mnras/stad2206

A compact multi-planet system transiting HIP 29442 (TOI-469) discovered by TESS and ESPRESSO

M. Damasso, J. Rodrigues, A. Castro-González, B. Lavie, J. Davoult, M. R. Zapatero Osorio, J. Dou, S. G. Sousa, J. E. Owen, P. Sossi, V. Adibekyan, H. Osborn, Z. Leinhardt, Y. Alibert, C. Lovis, E. Delgado Mena, A. Sozzetti, S. C. C. Barros, D. Bossini, C. Ziegler, D. R. Ciardi, E. C. Matthews, P. J. Carter, J. Lillo-Box, A. Suárez Mascareño, et al.
Astronomy & Astrophysics 679 A33 (2023)
https://doi.org/10.1051/0004-6361/202347240

TOI-179: A young system with a transiting compact Neptune-mass planet and a low-mass companion in outer orbit

S. Desidera, M. Damasso, R. Gratton, S. Benatti, D. Nardiello, V. D’Orazi, A. F. Lanza, D. Locci, F. Marzari, D. Mesa, S. Messina, I. Pillitteri, A. Sozzetti, J. Girard, A. Maggio, G. Micela, L. Malavolta, V. Nascimbeni, M. Pinamonti, V. Squicciarini, J. Alcalá, K. Biazzo, A. Bohn, M. Bonavita, K. Brooks, et al.
Astronomy & Astrophysics 675 A158 (2023)
https://doi.org/10.1051/0004-6361/202244611

TOI-5678b: A 48-day transiting Neptune-mass planet characterized with CHEOPS and HARPS

S. Ulmer-Moll, H. P. Osborn, A. Tuson, et al.
Astronomy & Astrophysics 674 A43 (2023)
https://doi.org/10.1051/0004-6361/202245478

A CHEOPS-enhanced view of the HD 3167 system

V. Bourrier, A. Deline, A. Krenn, J. A. Egger, A. C. Petit, L. Malavolta, M. Cretignier, N. Billot, C. Broeg, H.-G. Florén, D. Queloz, Y. Alibert, A. Bonfanti, A. S. Bonomo, J.-B. Delisle, O. D. S. Demangeon, B.-O. Demory, X. Dumusque, D. Ehrenreich, R. D. Haywood, S. B. Howell, M. Lendl, A. Mortier, G. Nigro, S. Salmon, et al.
Astronomy & Astrophysics 668 A31 (2022)
https://doi.org/10.1051/0004-6361/202243778

The HD 137496 system: A dense, hot super-Mercury and a cold Jupiter

T. Azevedo Silva, O. D. S. Demangeon, S. C. C. Barros, et al.
Astronomy & Astrophysics 657 A68 (2022)
https://doi.org/10.1051/0004-6361/202141520

CORALIE radial-velocity search for companions around evolved stars (CASCADES)

G. Ottoni, S. Udry, D. Ségransan, G. Buldgen, C. Lovis, P. Eggenberger, C. Pezzotti, V. Adibekyan, M. Marmier, M. Mayor, N. C. Santos, S. G. Sousa, N. Lagarde and C. Charbonnel
Astronomy & Astrophysics 657 A87 (2022)
https://doi.org/10.1051/0004-6361/202040078

Determination of stellar parameters for Ariel targets: a comparison analysis between different spectroscopic methods

Anna Brucalassi, Maria Tsantaki, Laura Magrini, et al.
Experimental Astronomy 53 (2) 511 (2022)
https://doi.org/10.1007/s10686-020-09695-4

Lithium abundances as a tracer of asymptotic giant branch star pollution in the globular cluster NGC 6752

J Schiappacasse-Ulloa, Sara Lucatello, M J Rain and Adriano Pietrinferni
Monthly Notices of the Royal Astronomical Society 511 (1) 231 (2022)
https://doi.org/10.1093/mnras/stab3795

The HD 93963 A transiting system: A 1.04 d super-Earth and a 3.65 d sub-Neptune discovered by TESS and CHEOPS

L. M. Serrano, D. Gandolfi, S. Hoyer, et al.
Astronomy & Astrophysics 667 A1 (2022)
https://doi.org/10.1051/0004-6361/202243093

The young HD 73583 (TOI-560) planetary system: two 10-M⊕ mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

O Barragán, D J Armstrong, D Gandolfi, et al.
Monthly Notices of the Royal Astronomical Society 514 (2) 1606 (2022)
https://doi.org/10.1093/mnras/stac638

The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products

G. Gilmore, S. Randich, C. C. Worley, et al.
Astronomy & Astrophysics 666 A120 (2022)
https://doi.org/10.1051/0004-6361/202243134

A pair of sub-Neptunes transiting the bright K-dwarf TOI-1064 characterized with CHEOPS

Thomas G Wilson, Elisa Goffo, Yann Alibert, et al.
Monthly Notices of the Royal Astronomical Society 511 (1) 1043 (2022)
https://doi.org/10.1093/mnras/stab3799

HD 23472: a multi-planetary system with three super-Earths and two potential super-Mercuries,

S. C. C. Barros, O. D. S. Demangeon, Y. Alibert, et al.
Astronomy & Astrophysics 665 A154 (2022)
https://doi.org/10.1051/0004-6361/202244293

NGTS-21b: an inflated Super-Jupiter orbiting a metal-poor K dwarf

Douglas R Alves, James S Jenkins, Jose I Vines, et al.
Monthly Notices of the Royal Astronomical Society 517 (3) 4447 (2022)
https://doi.org/10.1093/mnras/stac2884

The EBLM project – VIII. First results for M-dwarf mass, radius, and effective temperature measurements using CHEOPS light curves

M I Swayne, P F L Maxted, A H M J Triaud, et al.
Monthly Notices of the Royal Astronomical Society 506 (1) 306 (2021)
https://doi.org/10.1093/mnras/stab1687

CHEOPS observations of the HD 108236 planetary system: a fifth planet, improved ephemerides, and planetary radii

A. Bonfanti, L. Delrez, M. J. Hooton, et al.
Astronomy & Astrophysics 646 A157 (2021)
https://doi.org/10.1051/0004-6361/202039608

Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

E. Delgado Mena, V. Adibekyan, N. C. Santos, et al.
Astronomy & Astrophysics 655 A99 (2021)
https://doi.org/10.1051/0004-6361/202141588

Stellar chromospheric activity of 1674 FGK stars from the AMBRE-HARPS sample

J. Gomes da Silva, N. C. Santos, V. Adibekyan, et al.
Astronomy & Astrophysics 646 A77 (2021)
https://doi.org/10.1051/0004-6361/202039765

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

A. Sozzetti, M. Damasso, A. S. Bonomo, et al.
Astronomy & Astrophysics 648 A75 (2021)
https://doi.org/10.1051/0004-6361/202040034

Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS

Laetitia Delrez, David Ehrenreich, Yann Alibert, et al.
Nature Astronomy 5 (8) 775 (2021)
https://doi.org/10.1038/s41550-021-01381-5

The AMBRE Project: Spectrum normalisation influence on Mg abundances in the metal-rich Galactic disc

P. Santos-Peral, A. Recio-Blanco, P. de Laverny, E. Fernández-Alvar and C. Ordenovic
Astronomy & Astrophysics 639 A140 (2020)
https://doi.org/10.1051/0004-6361/202037522

Stellar atmospheric parameters of FGK-type stars from high-resolution optical and near-infrared CARMENES spectra

E Marfil, H M Tabernero, D Montes, et al.
Monthly Notices of the Royal Astronomical Society 492 (4) 5470 (2020)
https://doi.org/10.1093/mnras/staa058

WASP-127b: a misaligned planet with a partly cloudy atmosphere and tenuous sodium signature seen by ESPRESSO

R. Allart, L. Pino, C. Lovis, et al.
Astronomy & Astrophysics 644 A155 (2020)
https://doi.org/10.1051/0004-6361/202039234