Astronomy & Astrophysics (A&A)

Latest special issuesAll

Gaia Early Data Release 3 (open issue)
Solar Orbiter First Results (open issue)
First science highlights from SRG/eROSITA (open issue)
Parker Solar Probe: Ushering a new frontier in space exploration (open issue)

Free Access

Variation of the core lifetime and fragmentation scale in molecular clouds as an indication of ambipolar diffusion

Indrani Das, Shantanu Basu and Philippe André

A&A, 649 (2021) L13

Published online: 13 May 2021
Free Access

A diffuse tidal dwarf galaxy destined to fade out as a “dark galaxy”

Javier Román, Michael G. Jones, Mireia Montes, Lourdes Verdes-Montenegro, Julián Garrido and Susana Sánchez

A&A, 649 (2021) L14

Published online: 13 May 2021
Free Access

Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indene

J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo and P. de Vicente

A&A, 649 (2021) L15

Published online: 13 May 2021
Relativistic fluid modelling of gamma-ray binaries - II. Application to LS 5039

D. Huber, R. Kissmann and O. Reimer

A&A, 649 (2021) A71

Published online: 13 May 2021
Broadband X-ray spectra and timing of the accreting millisecond pulsar Swift J1756.9–2508 during its 2018 and 2019 outbursts

Z. S. Li, L. Kuiper, M. Falanga, J. Poutanen, S. S. Tsygankov, D. K. Galloway, E. Bozzo, Y. Y. Pan, Y. Huang, S. N. Zhang and S. Zhang

A&A, 649 (2021) A76

Published online: 13 May 2021
Cosmography by orthogonalized logarithmic polynomials

G. Bargiacchi, G. Risaliti, M. Benetti, S. Capozziello, E. Lusso, A. Saccardi and M. Signorini

A&A, 649 (2021) A65

Published online: 13 May 2021
GW190814 follow-up with the optical telescope MeerLICHT

S. de Wet, P. J. Groot, S. Bloemen, R. Le Poole, M. Klein-Wolt, E. Körding, V. McBride, K. Paterson, D. L. A. Pieterse, P. M. Vreeswijk and P. Woudt

A&A, 649 (2021) A72

Published online: 13 May 2021
The OTELO survey - Faint end of the luminosity function of [O II]3727 emitters at ⟨z⟩ = 1.43

B. Cedrés, Á. Bongiovanni, M. Cerviño, J. Nadolny, J. Cepa, J. A. de Diego, A. M. Pérez García, J. Gallego, M. A. Lara-López, M. Sánchez-Portal et al. (8 more)

A&A, 649 (2021) A73

Published online: 13 May 2021

Most downloaded articles

222	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
168	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
167	Free Access The FORS1 catalogue of stellar magnetic field measurements S. Bagnulo, L. Fossati, J. D. Landstreet and C. Izzo A&A, 583 (2015) A115 Published online: 04 November 2015
160	Highlight Open Access Six transiting planets and a chain of Laplace resonances in TOI-178 A. Leleu, Y. Alibert, N. C. Hara, M. J. Hooton, T. G. Wilson, P. Robutel, J.-B. Delisle, J. Laskar, S. Hoyer, C. Lovis et al. (145 more) A&A, 649 (2021) A26 Published online: 06 May 2021
151	Free Access Forever young white dwarfs: When stellar ageing stops María E. Camisassa, Leandro G. Althaus, Santiago Torres, Alejandro H. Córsico, Alberto Rebassa-Mansergas, Pier-Emmanuel Tremblay, Sihao Cheng and Roberto Raddi A&A, 649 (2021) L7 Published online: 06 May 2021

Volume 649 (May 2021)(open volume)
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)
See the table of contents
Volume 648 (April 2021)
1. The LoTSS-Deep image of Elais-N1, with various results inset
  (“The LOFAR Two Meter Sky Survey” Special Issue, 2021, A&A, 648)
2. Dust emission of the protoplanetary disk of TW Hya (Macías, E., et al., 2021, A&A, 648, A33)
3. Plasma slab propagation across the magnetic field (Burdonov, K., et al., 2021, A&A, 648, A81)
4. 25 000 radio sources seen by LOFAR at 54 MHz (de Gasperin, F., et al., 2021, A&A, 648, A104)
See the table of contents
Volume 647 (March 2021)
1. The LMC in X-rays: First-Light picture taken with eROSITA onboard SRG
  (“First science highlights from SRG/eROSITA” Special Issue, 2021, A&A, 647)
2. Expanding ejecta curtain of SCI crater on Ryugu (Wada, K., et al., 2021, A&A, 647, A43)
3. A 4.6 cMpc Ly-alpha filament discovered by MUSE in HUDF (Bacon, R., et al., 2021, A&A, 647, A107)
4. Falling apart star cluster seen by Gaia (Jerabkova, T., et al., 2021, A&A, 647, A137)
See the table of contents

2016	Press Release Free Access Discovery of a directly imaged planet to the young solar analog YSES 2 Alexander J. Bohn, Christian Ginski, Matthew A. Kenworthy, Eric E. Mamajek, Mark J. Pecaut, Markus Mugrauer, Nikolaus Vogt, Christian Adam, Tiffany Meshkat, Maddalena Reggiani and Frans Snik A&A, 648 (2021) A73 Published online: 19 April 2021
1435	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
1276	Press Release Free Access Water in star-forming regions: physics and chemistry from clouds to disks as probed by Herschel spectroscopy 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) A&A, 648 (2021) A24 Published online: 09 April 2021
821	Press Release Highlight Free Access The 800 pc long tidal tails of the Hyades star cluster - Possible discovery of candidate epicyclic overdensities from an open star cluster Tereza Jerabkova, Henri M. J. Boffin, Giacomo Beccari, Guido de Marchi, Jos H. J. de Bruijne and Timo Prusti A&A, 647 (2021) A137 Published online: 24 March 2021
811	Free Access The FORS1 catalogue of stellar magnetic field measurements S. Bagnulo, L. Fossati, J. D. Landstreet and C. Izzo A&A, 583 (2015) A115 Published online: 04 November 2015

8143	Press Release Open Access Does NGC 6397 contain an intermediate-mass black hole or a more diffuse inner subcluster? Eduardo Vitral and Gary A. Mamon A&A, 646 (2021) A63 Published online: 11 February 2021
7137	Free Access The FORS1 catalogue of stellar magnetic field measurements S. Bagnulo, L. Fossati, J. D. Landstreet and C. Izzo A&A, 583 (2015) A115 Published online: 04 November 2015
6317	Press Release Highlight Free Access The 800 pc long tidal tails of the Hyades star cluster - Possible discovery of candidate epicyclic overdensities from an open star cluster Tereza Jerabkova, Henri M. J. Boffin, Giacomo Beccari, Guido de Marchi, Jos H. J. de Bruijne and Timo Prusti A&A, 647 (2021) A137 Published online: 24 March 2021
5043	Press Release Free Access Probing cosmic isotropy with a new X-ray galaxy cluster sample through the L_X–T scaling relation K. Migkas, G. Schellenberger, T. H. Reiprich, F. Pacaud, M. E. Ramos-Ceja and L. Lovisari A&A, 636 (2020) A15 Published online: 08 April 2020
5038	Press Release Highlight Open Access The MUSE Extremely Deep Field: The cosmic web in emission at high redshift R. Bacon, D. Mary, T. Garel, J. Blaizot, M. Maseda, J. Schaye, L. Wisotzki, S. Conseil, J. Brinchmann, F. Leclercq et al. (22 more) A&A, 647 (2021) A107 Published online: 18 March 2021

Astronomy & Astrophysics

Latest highlightsAll

Latest volumeAll

PUBLISH WITH A&A

Latest highlightsAll

Latest volumeAll

PUBLISH WITH A&A

Latest special issuesAll

Variation of the core lifetime and fragmentation scale in molecular clouds as an indication of ambipolar diffusion

A diffuse tidal dwarf galaxy destined to fade out as a “dark galaxy”

Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indene

Relativistic fluid modelling of gamma-ray binaries - II. Application to LS 5039

Broadband X-ray spectra and timing of the accreting millisecond pulsar Swift J1756.9–2508 during its 2018 and 2019 outbursts

Cosmography by orthogonalized logarithmic polynomials

GW190814 follow-up with the optical telescope MeerLICHT

The OTELO survey - Faint end of the luminosity function of [O II]3727 emitters at ⟨z⟩ = 1.43

Planck 2018 results - VI. Cosmological parameters

Gaia Early Data Release 3 - Summary of the contents and survey properties

The FORS1 catalogue of stellar magnetic field measurements

Six transiting planets and a chain of Laplace resonances in TOI-178

Forever young white dwarfs: When stellar ageing stops

Discovery of a directly imaged planet to the young solar analog YSES 2

Planck 2018 results - VI. Cosmological parameters

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

The 800 pc long tidal tails of the Hyades star cluster - Possible discovery of candidate epicyclic overdensities from an open star cluster

The FORS1 catalogue of stellar magnetic field measurements

Does NGC 6397 contain an intermediate-mass black hole or a more diffuse inner subcluster?

The FORS1 catalogue of stellar magnetic field measurements

The 800 pc long tidal tails of the Hyades star cluster - Possible discovery of candidate epicyclic overdensities from an open star cluster

Probing cosmic isotropy with a new X-ray galaxy cluster sample through the L_X–T scaling relation

The MUSE Extremely Deep Field: The cosmic web in emission at high redshift

Volume 649 (May 2021)(open volume)

Volume 648 (April 2021)

Volume 647 (March 2021)

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