Astronomy & Astrophysics (A&A)

Volume 708 (April 2026)
(in progress)

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Antlia SNR observed in X-rays with eROSITA/SRG (Knies, F., et al., 2026, A&A, 708, A198)

Astronomy & Astrophysics is published under Subscribe to Open (S2O). S2O is a subscription open access model that relies on library contributions to make content open access for the benefit of the research community. The open access status of the journal is reviewed every year. A&A remains Open Access in 2025 under the Subscribe to Open (S2O) model.
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Latest special issuesAll

Euclid Quick Data Release (Q1) (in progress)
Solar Orbiter First Results (Nominal Mission Phase)
ZTF SN Ia DR2

Open Access

Investigating particle acceleration in the Wolf-Rayet bubble NGC 2359

Anindya Saha, Anandmayee Tej, Santiago del Palacio, Michaël De Becker, Paula Benaglia, Ramananda Santra and Ishwara Chandra CH

A&A, 708 (2026) A310

Published online: 21 April 2026
Open Access

Searching for radio emission from radio quiet magnetars with MeerKAT

Marlon L. Bause, Kamalpreet Kaur, Isabella Rammala-Zitha and Laura G. Spitler

A&A, 708 (2026) A321

Published online: 21 April 2026
Open Access

Multi-wavelength emission modelling of PSR J0437–4715

J. Pétri, P. Stammler, L. Guillemot, S. Guillot, D. González-Caniulef, F. Jankowski and N. Webb

A&A, 708 (2026) A328

Published online: 21 April 2026
Open Access

A high-resolution X-ray view of the ultra-fast outflow in MAXI J1810−222

C. Pinto, M. Del Santo, A. D’Aì, F. Pintore, T. Russell, M. Parra, J. Ferreira, P.-O. Petrucci, K. Fukumura, A. Marino et al. (3 more)

A&A, 708 (2026) A332

Published online: 21 April 2026
Open Access

POLAR - II. Modeling the star formation history of galaxies on the 21 cm signal from the Epoch of Reionization

Qing-Bo Ma, Raghunath Ghara, Benedetta Ciardi, Anshuman Acharya, Bin Yue, Ilian T. Iliev, Léon V. E. Koopmans, Garrelt Mellema and Saleem Zaroubi

A&A, 708 (2026) A320

Published online: 21 April 2026
Open Access

AGN obscuration in optical and X-rays: Host properties and the interplay of nuclear and galactic gas and dust in a combined SDSS–XMM sample

G. Mountrichas, F. J. Carrera, E. Quintin, A. Viitanen, A. Corral and N. Webb

A&A, 708 (2026) A318

Published online: 21 April 2026
Open Access

Large-scale environments of star-forming active galactic nuclei: How black-hole mass, accretion rate, and luminosity connect to dark-matter halos

G. Mountrichas, F. J. Carrera, F. Shankar and A. Georgakakis

A&A, 708 (2026) A323

Published online: 21 April 2026
Open Access

A broker-integrated algorithm for electromagnetic counterpart searches to gravitational-wave events in O4a and O4b runs

Hemanth Bommireddy, Francisco Förster, Isaac McMahon, Manuel Pavez-Herrera, Regis Cartier, Felipe Olivares E., Lorena Hernández-García, Mary Loli Martínez-Aldama and Alejandra Muñoz Arancibia

A&A, 708 (2026) A325

Published online: 21 April 2026

Most downloaded articles

2904	Open Access The Local Distance Network: A community consensus report on the measurement of the Hubble constant at ∼1% precision H0DN Collaboration, Stefano Casertano, Gagandeep Anand, Richard I. Anderson, Rachael Beaton, Anupam Bhardwaj, John P. Blakeslee, Paula Boubel, Louise Breuval, Dillon Brout et al. (28 more) A&A, 708 (2026) A166 Published online: 10 April 2026
1278	Free Access The chemistry of C₂ and C₃ in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances r_h ≥ 2.9 AU J. Helbert, H. Rauer, D. C. Boice and W. F. Huebner A&A, 442 3 (2005) 1107-1120 Published online: 14 October 2005
1270	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
1142	Free Access The 55 Cancri system reassessed V. Bourrier, X. Dumusque, C. Dorn, G. W. Henry, N. Astudillo-Defru, J. Rey, B. Benneke, G. Hébrard, C. Lovis, B. O. Demory et al. (2 more) A&A, 619 (2018) A1 Published online: 30 October 2018
1106	Highlight Free Access Medium-resolution échelle spectroscopy of the Red Square Nebula, MWC 922 N. Wehres, B. B. Ochsendorf, A. G. G. M. Tielens, N. L. J. Cox, L. Kaper, J. Bally and T. P. Snow A&A, 601 (2017) A69 Published online: 03 May 2017

Volume 708 (April 2026) (in progress)
1. JWST-NIRCam images of protoplanetary disks in the Orion Nebula Cluster (Amiot, P., et al., 2026, A&A, 708, A111)
2. Resolved protoplanetary discs at 1.3 mm (Bosschaart, Q., et al., 2026, A&A, 708, A143)
3. Antlia SNR observed in X-rays with eROSITA/SRG (Knies, F., et al., 2026, A&A, 708, A198)
See the table of contents
Volume 707 (March 2026)
1. Non-thermal filaments in the cluster Abell 2255 (De Rubeis, E., et al., 2026, A&A, 707, A49)
2. Turbulent burning in electron capture supernovae (Holas, A., et al., 2026, A&A, 707, A84)
3. A section of the Galactic plane in LoTSS-DR3 (Shimwell, T. W., et al., 2026, A&A, 707, A198)
4. β Pic submicro-arcsecond astrometry with GRAVITY+ (GRAVITY+ Collaboration, 2026, A&A, 707, A115)
5. Interstellar nebula powered by microquasar SS 433 (Sunyaev, R.., et al., 2026, A&A, 707, A278)
See the table of contents
Volume 706 (February 2026)
1. Millimeter-selected clusters and dusty galaxies (Archipley, M., et al., 2026, A&A, 706, A17)
2. CO(2–1) velocity maps of the IRAS 04166 outflow (Tafalla, M., et al., 2026, A&A, 706, A248)
3. Bayesian imaging of LMC SN1987A components (Eberle, V., et al., 2026, A&A, 706, A229)
4. GLOSTAR–Effelsberg map of the Galaxy at 4.9 GHz (Gong, Y., et al., 2026, A&A, 706, A230)
5. Tracing the interplay between stars and gas in M33 (Feltre, A., et al., 2026, A&A, 706, A367)
6. CH and H₂O spectra constraining variations α (Muller, S., et al., 2026, A&A, 706, A365)
7. The tidal disruption of a rubble-pile Phobos (Agrusa, H. & Michel, P., 2026, A&A, 706, A353)
See the table of contents

5871	Free Access Photodissociation and photoionisation of atoms and molecules of astrophysical interest A. N. Heays, A. D. Bosman and E. F. van Dishoeck A&A, 602 (2017) A105 Published online: 23 June 2017
5796	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
5661	Open Access FENRIR: A statistical model of stellar variability - I. A physics-based, fast Gaussian process model to represent stellar activity and perform statistical Doppler imaging Nathan C. Hara and Jean-Baptiste Delisle A&A, 696 (2025) A141 Published online: 17 April 2025
5288	Press Release Open Access Solar twins in Gaia DR3 GSP-Spec - I. Building a large catalog of solar twins with ages Daisuke Taniguchi, Patrick de Laverny, Alejandra Recio-Blanco, Takuji Tsujimoto and Pedro A. Palicio A&A, 707 (2026) A260 Published online: 12 March 2026
3821	Euclid on Sky Open Access Euclid - I. Overview of the Euclid mission Euclid Collaboration, Y. Mellier, Abdurro’uf, J. A. Acevedo Barroso, A. Achúcarro, J. Adamek, R. Adam, G. E. Addison, N. Aghanim, M. Aguena et al. (1130 more) A&A, 697 (2025) A1 Published online: 30 April 2025

15966	Free Access The chemistry of C₂ and C₃ in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances r_h ≥ 2.9 AU J. Helbert, H. Rauer, D. C. Boice and W. F. Huebner A&A, 442 3 (2005) 1107-1120 Published online: 14 October 2005
15503	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
13557	Euclid on Sky Open Access Euclid - I. Overview of the Euclid mission Euclid Collaboration, Y. Mellier, Abdurro’uf, J. A. Acevedo Barroso, A. Achúcarro, J. Adamek, R. Adam, G. E. Addison, N. Aghanim, M. Aguena et al. (1130 more) A&A, 697 (2025) A1 Published online: 30 April 2025
9986	Open Access Identifying astrophysical anomalies in 99.6 million source cutouts from the Hubble legacy archive using AnomalyMatch David O’Ryan and Pablo Gómez A&A, 704 (2025) A227 Published online: 16 December 2025
8509	Free Access A long term spectroscopic and photometric study of the old nova HR Delphini M. Friedjung, M. Dennefeld and I. Voloshina A&A, 521 (2010) A84 Published online: 25 October 2010

Astronomy & Astrophysics

Latest highlightsAll

Latest volumeAll

SUBSCRIBE TO OPEN (S2O)

FEATURED IMAGE All

Latest special issuesAll

Investigating particle acceleration in the Wolf-Rayet bubble NGC 2359

Searching for radio emission from radio quiet magnetars with MeerKAT

Multi-wavelength emission modelling of PSR J0437–4715

A high-resolution X-ray view of the ultra-fast outflow in MAXI J1810−222

POLAR - II. Modeling the star formation history of galaxies on the 21 cm signal from the Epoch of Reionization

AGN obscuration in optical and X-rays: Host properties and the interplay of nuclear and galactic gas and dust in a combined SDSS–XMM sample

Large-scale environments of star-forming active galactic nuclei: How black-hole mass, accretion rate, and luminosity connect to dark-matter halos

A broker-integrated algorithm for electromagnetic counterpart searches to gravitational-wave events in O4a and O4b runs

The Local Distance Network: A community consensus report on the measurement of the Hubble constant at ∼1% precision

The chemistry of C₂ and C₃ in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances r_h ≥ 2.9 AU

Planck 2018 results - VI. Cosmological parameters

The 55 Cancri system reassessed

Medium-resolution échelle spectroscopy of the Red Square Nebula, MWC 922

Photodissociation and photoionisation of atoms and molecules of astrophysical interest

Planck 2018 results - VI. Cosmological parameters

FENRIR: A statistical model of stellar variability - I. A physics-based, fast Gaussian process model to represent stellar activity and perform statistical Doppler imaging

Solar twins in Gaia DR3 GSP-Spec - I. Building a large catalog of solar twins with ages

Euclid - I. Overview of the Euclid mission

The chemistry of C₂ and C₃ in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances r_h ≥ 2.9 AU

Planck 2018 results - VI. Cosmological parameters

Euclid - I. Overview of the Euclid mission

Identifying astrophysical anomalies in 99.6 million source cutouts from the Hubble legacy archive using AnomalyMatch

A long term spectroscopic and photometric study of the old nova HR Delphini

Volume 708 (April 2026) (in progress)

Volume 707 (March 2026)

Volume 706 (February 2026)

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