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Broad-band modelling of the GRB 230812B afterglow: Implications for very-high-energy γ-ray detections with IACTs
A&A, 705 (2026) A227
Published online: 20 January 2026
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Astronomy & Astrophysics (A&A)
astrophysical research
ARKS debris discs: dust (orange) and CO gas (blue) (Marino et al., 2026, 705, A195 ; Mac Manamon et al., 2026, 705, A198 ; and the ARKS collaboration)
Astronomy & Astrophysics
Worldwide astronomical andastrophysical research
Editor-in-Chief: Thierry Forveille
Letters Editor-in-Chief: João Alves
Managing Editor: David Elbaz
Important note: new policy on paper length applies to papers submitted to A&A after 2 April 2025 (please see here)
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Euclid Quick Data Release (Q1) (in progress) -
Solar Orbiter First Results (Nominal Mission Phase) (in progress) -
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Open Access
Exploring the connection between compact object mergers and fast X-ray transients - The cases of LXT 240402A and EP250207b
R. L. Becerra, Y.-H. Yang, E. Troja, M. El Kabir, S. Dichiara, N. Passaleva, B. O’Connor, R. Ricci, C. Fryer, L. Hu et al. (22 more)A&A, 705 (2026) A233Published online: 20 January 2026 -
Open Access
Environments of high and low excitation radio galaxies
C. Lopez, D. Ponce and E. DonosoA&A, 705 (2026) A192Published online: 20 January 2026 -
Open Access
Gravity-selected galaxy clusters: A tight mass-richness relation and an unclear Compton Y-richness trend
S. Andreon and M. RadovichA&A, 705 (2026) A208Published online: 20 January 2026 -
Open Access
A search for cold molecular outflows in cosmic-noon galaxies
I. Langan, G. Popping, M. Ginolfi, S. Weng, F. Valentino, G. C. Jones and J. ScholtzA&A, 705 (2026) A209Published online: 20 January 2026 -
Open Access
J-PAS: A neural network approach to single stellar population characterisation
H. Domínguez Sánchez, P. Coelho, G. Bruzual, A. Hernán-Caballero, C. López Sanjuan, J. A. Fernandez-Ontiveros, L. A. Díaz-García, L. Suelves, A. Álvarez-Candal, I. Breda et al. (21 more)A&A, 705 (2026) A219Published online: 20 January 2026 -
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The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) - I. Motivation, sample, data reduction, and results overview
S. Marino, L. Matrà, A. M. Hughes, J. Ehrhardt, G. M. Kennedy, C. del Burgo, A. Brennan, Y. Han, M. R. Jankovic, J. B. Lovell et al. (32 more)A&A, 705 (2026) A195Published online: 20 January 2026 -
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The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) - III. The vertical structure of debris disks
B. Zawadzki, A. Fehr, A. M. Hughes, E. Mansell, J. Kittling, Y. Han, C. Hou, M. Pan, J. Milli, J. Olofsson et al. (30 more)A&A, 705 (2026) A197Published online: 20 January 2026
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Free Access
The chemistry of C2 and C3 in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances rh ≥ 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
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| 3329 |
Free Access
Near-IR imaging toward a puzzling young stellar object precessing jet
S. Paron, C. Fariña and M. E. Ortega
A&A, 593 (2016) A132
Published online: 05 October 2016
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| 2763 |
Open Access
Assessing interstellar comet 3I/ATLAS with the 10.4 m Gran Telescopio Canarias and the Two-meter Twin Telescope
R. de la Fuente Marcos, M. R. Alarcon, J. Licandro, M. Serra-Ricart, J. de León, C. de la Fuente Marcos, G. Lombardi, A. Tejero, A. Cabrera-Lavers, S. Guerra Arencibia and I. Ruiz Cejudo
A&A, 700 (2025) L9
Published online: 05 August 2025
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| 2433 |
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
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| 1728 |
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
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| 12143 |
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
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| 11346 |
Free Access
The chemistry of C2 and C3 in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances rh ≥ 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
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| 7610 |
Open Access
Assessing interstellar comet 3I/ATLAS with the 10.4 m Gran Telescopio Canarias and the Two-meter Twin Telescope
R. de la Fuente Marcos, M. R. Alarcon, J. Licandro, M. Serra-Ricart, J. de León, C. de la Fuente Marcos, G. Lombardi, A. Tejero, A. Cabrera-Lavers, S. Guerra Arencibia and I. Ruiz Cejudo
A&A, 700 (2025) L9
Published online: 05 August 2025
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| 5168 |
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
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| 3922 |
Open Access
JWST reveals a supernova following a gamma-ray burst at z ≃ 7.3
A. J. Levan, B. Schneider, E. Le Floc’h, G. Brammer, N. R. Tanvir, D. B. Malesani, A. Martin-Carrillo, A. Rossi, A. Saccardi, A. Sneppen et al. (43 more)
A&A, 704 (2025) L8
Published online: 09 December 2025
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| 21862 |
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
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| 19124 |
Free Access
SDSS-based taxonomic classification and orbital distribution of main belt asteroids
J. M. Carvano, P. H. Hasselmann, D. Lazzaro and T. Mothé-Diniz
A&A, 510 (2010) A43
Published online: 05 February 2010
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| 16769 |
Open Access
Assessing interstellar comet 3I/ATLAS with the 10.4 m Gran Telescopio Canarias and the Two-meter Twin Telescope
R. de la Fuente Marcos, M. R. Alarcon, J. Licandro, M. Serra-Ricart, J. de León, C. de la Fuente Marcos, G. Lombardi, A. Tejero, A. Cabrera-Lavers, S. Guerra Arencibia and I. Ruiz Cejudo
A&A, 700 (2025) L9
Published online: 05 August 2025
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| 15870 |
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
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| 13295 |
Free Access
The chemistry of C2 and C3 in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances rh ≥ 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
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Volume 705 (January 2026) (in progress)
- A microquasar shuts down, forming a remnant (Abaroa, L., et al., 2026, A&A, 705, L4)
- Images zooming in on the main galaxy of the cluster (Han, S., et al., 2026, A&A, 705, A169)
- ARKS debris discs: dust (orange) and CO gas (blue) (Marino et al., 2026, 705, A195 ; Mac Manamon et al., 2026, 705, A198 ; and the ARKS collaboration)
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Volume 704 (December 2025)
- Diffuse X-rays near PeVatron 1LHAASO J1740+0948u (Brunelli, G., et al., 2025, A&A, 704, A30)
- The 8 lensed quasars used for measuring H0 (TDCOSMO Collaboration, 2025, A&A, 704, A63)
- JWST-MIRI Spectra of the Delorme 1 system (Mâlin, M., 2025, A&A, 704, A181)
- Filamentary structure in the Galactic CO emission (Soler, J. D., et al., 2025, A&A, 704, A164)
- Simulation of a major merger of two dwarf galaxies (Deng, Y., et al., 2025, A&A, 704, A240)
- M87 ring and magnetic field evolution (2017–2021) (The Event Horizon Telescope Collaboration, 2025, A&A, 704, A91)
- JWST traces dust evolution at Horsehead's edge (Elyajouri, M., et al., 2025, A&A, 704, A203)
- Diffuse Galactic cirrus across dust tracers (Liu, Q., et al., 2025, A&A, 704, A269)
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Volume 703 (November 2025)
- Simulation of a supernova remnant in Cygnus OB2 (Härer, L., et al., 2025, A&A, 703, A111)
- HST+JWST color image of the cluster lens A370 (Diego, J. M., et al., 2025, A&A, 703, A207)
- 2025 A&A AWARDS :
and the winners are... - A&A Open Access
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