Astronomy & Astrophysics (A&A)

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6 GHz radio continuum image of the Galactic plane (Brunthaler, A., et al., 2021, A&A, 651, A85)

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Astronomy & Astrophysics is a leading international Journal that publishes papers on all aspects of astronomy and astrophysics (theoretical, observational, and instrumental).

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Latest special issuesAll

Parker Solar Probe: Ushering a new frontier in space exploration (open issue)
Gaia Early Data Release 3 (open issue)
First science highlights from SRG/eROSITA (open issue)
Sub-arcsecond imaging with the International LOFAR Telescope (open issue)

Interior heating and outgassing of Proxima Centauri b: Identifying critical parameters

L. Noack, K. G. Kislyakova, C. P. Johnstone, M. Güdel and L. Fossati

A&A, 651 (2021) A103

Published online: 26 July 2021
Study of the thermal and nonthermal emission components in M 31: the Sardinia Radio Telescope view at 6.6 GHz

S. Fatigoni, F. Radiconi, E. S. Battistelli, M. Murgia, E. Carretti, P. Castangia, R. Concu, P. de Bernardis, J. Fritz, R. Genova-Santos et al. (14 more)

A&A, 651 (2021) A98

Published online: 23 July 2021
First survey of HCNH⁺ in high-mass star-forming cloud cores

F. Fontani, L. Colzi, E. Redaelli, O. Sipilä and P. Caselli

A&A, 651 (2021) A94

Published online: 23 July 2021
Infrared spectra of complex organic molecules in astronomically relevant ice matrices - III. Methyl formate and its tentative solid-state detection

Jeroen Terwisscha van Scheltinga, Giulia Marcandalli, Melissa K. McClure, Michiel R. Hogerheijde and Harold Linnartz

A&A, 651 (2021) A95

Published online: 23 July 2021
Constraining the overcontact phase in massive binary evolution - I. Mixing in V382 Cyg, VFTS 352, and OGLE SMC-SC10 108086

Michael Abdul-Masih, Hugues Sana, Calum Hawcroft, Leonardo A. Almeida, Sarah A. Brands, Selma E. de Mink, Stephen Justham, Norbert Langer, Laurent Mahy, Pablo Marchant et al. (3 more)

A&A, 651 (2021) A96

Published online: 23 July 2021
Free Access

Online data analysis system of the INTEGRAL telescope

A. Neronov, V. Savchenko, A. Tramacere, M. Meharga, C. Ferrigno and S. Paltani

A&A, 651 (2021) A97

Published online: 23 July 2021
Press Release
Open Access

A global view on star formation: The GLOSTAR Galactic plane survey - IV. Radio continuum detections of young stellar objects in the Galactic Centre region

H. Nguyen, M. R. Rugel, K. M. Menten, A. Brunthaler, S. A. Dzib, A. Y. Yang, J. Kauffmann, T. G. S. Pillai, G. Nandakumar, M. Schultheis et al. (12 more)

A&A, 651 (2021) A88

Published online: 22 July 2021
Press Release
Open Access

A global view on star formation: The GLOSTAR Galactic plane survey - II. Supernova remnants in the first quadrant of the Milky Way

R. Dokara, A. Brunthaler, K. M. Menten, S. A. Dzib, W. Reich, W. D. Cotton, L. D. Anderson, C.-H. R. Chen, Y. Gong, S.-N. X. Medina et al. (10 more)

A&A, 651 (2021) A86

Published online: 22 July 2021

Most downloaded articles

213	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
126	Press Release Open Access Day-night differences in Mars methane suggest nighttime containment at Gale crater Christopher R. Webster, Paul R. Mahaffy, Jorge Pla-Garcia, Scot C. R. Rafkin, John E. Moores, Sushil K. Atreya, Gregory J. Flesch, Charles A. Malespin, Samuel M. Teinturier, Hemani Kalucha et al. (3 more) A&A, 650 (2021) A166 Published online: 29 June 2021
117	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
114	Planck 2015 results Free Access Planck 2015 results - XXVIII. The Planck Catalogue of Galactic cold clumps Planck Collaboration, P. A. R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, N. Bartolo et al. (213 more) A&A, 594 (2016) A28 Published online: 20 September 2016
113	Free Access Astropy: A community Python package for astronomy The Astropy Collaboration, Thomas P. Robitaille, Erik J. Tollerud, Perry Greenfield, Michael Droettboom, Erik Bray, Tom Aldcroft, Matt Davis, Adam Ginsburg, Adrian M. Price-Whelan et al. (35 more) A&A, 558 (2013) A33 Published online: 30 September 2013

Volume 651 (July 2021)(open volume)
1. Counter Evershed flows in sunspot penumbrae (Castellanos Durán, J. S., et al., 2021, A&A, 651, L1)
2. Colour composite (gri) VST image of the compact group HCG 86 (Ragusa, R., et al., 2021, A&A, 651, A39)
3. 6 GHz radio continuum image of the Galactic plane (Brunthaler, A., et al., 2021, A&A, 651, A85)
See the table of contents
Volume 650 (June 2021)
1. Artist's impression of NASA’s PSP (JHUAPL/Ben Smith)
  (“Parker Solar Probe: Ushering a new frontier in space exploration” Special issue, 2021, A&A, 650)
2. Fossil magnetism inside stars along the evolution (Bugnet, L., et al., 2021, A&A, 650, A53)
3. The Lyman-α emission of the intergalactic medium (Witstok, J., et al., 2021, A&A, 650, A98)
4. Giant plasmoid accretion in a GRPIC simulation (Crinquand, B., et al., 2021, A&A, 650, A163)
See the table of contents
Volume 649 (May 2021)
1. Trails showing the displacement of stars on the sky 400 thousand years into the future,
  based on Gaia Early Data Release 3 (Credit: ESA/Gaia/DPAC)
  ("Gaia Early Data Release 3" Special Issue, 2021, A&A, 649)
2. Complexity of filamentary structures in Musca (Yahia, H., et al., 2021, A&A, 649, A33)
3. Non-thermal phenomena in the center of Abell 1775 (Botteon, A., et al., 2021, A&A, 649, A37)
4. Observations vs. models of the disk around CIDA 1 (Pinilla, P., et al., 2021, A&A, 649, A122)
See the table of contents

3516	Press Release Open Access Day-night differences in Mars methane suggest nighttime containment at Gale crater Christopher R. Webster, Paul R. Mahaffy, Jorge Pla-Garcia, Scot C. R. Rafkin, John E. Moores, Sushil K. Atreya, Gregory J. Flesch, Charles A. Malespin, Samuel M. Teinturier, Hemani Kalucha et al. (3 more) A&A, 650 (2021) A166 Published online: 29 June 2021
1407	Press Release Open Access The weak lensing radial acceleration relation: Constraining modified gravity and cold dark matter theories with KiDS-1000 Margot M. Brouwer, Kyle A. Oman, Edwin A. Valentijn, Maciej Bilicki, Catherine Heymans, Henk Hoekstra, Nicola R. Napolitano, Nivya Roy, Crescenzo Tortora, Angus H. Wright et al. (15 more) A&A, 650 (2021) A113 Published online: 22 June 2021
1146	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
619	Gaia Early Data Release 3 Press Release Free Access Gaia Early Data Release 3 - Summary of the contents and survey properties Gaia Collaboration, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, C. Babusiaux, M. Biermann, O. L. Creevey, D. W. Evans, L. Eyer et al. (416 more) A&A, 649 (2021) A1 Published online: 28 April 2021
589	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

3914	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
3516	Press Release Open Access Day-night differences in Mars methane suggest nighttime containment at Gale crater Christopher R. Webster, Paul R. Mahaffy, Jorge Pla-Garcia, Scot C. R. Rafkin, John E. Moores, Sushil K. Atreya, Gregory J. Flesch, Charles A. Malespin, Samuel M. Teinturier, Hemani Kalucha et al. (3 more) A&A, 650 (2021) A166 Published online: 29 June 2021
2139	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
2011	Gaia Early Data Release 3 Press Release Free Access Gaia Early Data Release 3 - Summary of the contents and survey properties Gaia Collaboration, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, C. Babusiaux, M. Biermann, O. L. Creevey, D. W. Evans, L. Eyer et al. (416 more) A&A, 649 (2021) A1 Published online: 28 April 2021
1913	Planck 2015 results Free Access Planck 2015 results - XIII. Cosmological parameters Planck Collaboration, P. A. R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, J. G. Bartlett et al. (252 more) A&A, 594 (2016) A13 Published online: 20 September 2016

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Latest volumeAll

PUBLISH WITH A&A

Latest highlightsAll

Latest volumeAll

PUBLISH WITH A&A

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Volume 651 (July 2021)(open volume)

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