Search Publications

Gaia Data Release 3. A golden sample of astrophysical parameters
DOI: 10.1051/0004-6361/202243800 Bibcode: 2023A&A...674A..39G

Prusti, T.; Mazeh, T.; Zucker, S. +446 more

Context.Gaia Data Release 3 (DR3) provides a wealth of new data products for the astronomical community to exploit, including astrophysical parameters for half a billion stars. In this work, we demonstrate the high quality of these data products and illustrate their use in different astrophysical contexts.
Aims: We produce homogeneous samples…

2023 Astronomy and Astrophysics
Gaia 60
Bubbles and outflows: The novel JWST/NIRSpec view of the z = 1.59 obscured quasar XID2028
DOI: 10.1051/0004-6361/202346001 Bibcode: 2023A&A...672A.128C

Marconi, A.; Capetti, A.; Brusa, M. +20 more

Quasar feedback in the form of powerful outflows is invoked as a key mechanism to quench star formation in galaxies, although direct observational evidence is still scarce and debated. Here we present Early Release Science JWST NIRSpec IFU observations of the z = 1.59 prototypical obscured Active Galactic Nucleus (AGN) XID2028: This target represe…

2023 Astronomy and Astrophysics
eHST JWST 59
GA-NIFS: Black hole and host galaxy properties of two z ≃ 6.8 quasars from the NIRSpec IFU
DOI: 10.1051/0004-6361/202346113 Bibcode: 2023A&A...678A.191M

Pérez-González, Pablo G.; Carniani, Stefano; Übler, Hannah +20 more


Aims: Integral field spectroscopy (IFS) with JWST NIRSpec will significantly improve our understanding of the first quasars, by providing spatially resolved, infrared spectroscopic capabilities that cover key rest-frame optical emission lines that have been previously unobservable.
Methods: Here we present our results from the first two …

2023 Astronomy and Astrophysics
JWST 58
A catalogue of high-mass X-ray binaries in the Galaxy: from the INTEGRAL to the Gaia era
DOI: 10.1051/0004-6361/202245236 Bibcode: 2023A&A...671A.149F

García, Federico; Chaty, Sylvain; Fortin, Francis +1 more

Context. High-mass X-ray binaries (HMXBs) are a particular class of high-energy sources that require multi-wavelength observational efforts to be properly characterised. New identifications and the refinement of previous measurements are regularly published in the literature by independent teams of researchers and might, when they are collected in…

2023 Astronomy and Astrophysics
Gaia INTEGRAL XMM-Newton 57
Gaia Data Release 3. The second Gaia catalogue of long-period variable candidates
DOI: 10.1051/0004-6361/202244241 Bibcode: 2023A&A...674A..15L

Audard, M.; Rimoldini, L.; Holl, B. +9 more

Context. The third Gaia Data Release covers 34 months of data and includes the second Gaia catalogue of long-period variables (LPVs), with G variability amplitudes larger than 0.1 mag (5-95% quantile range).
Aims: The paper describes the production and content of the second Gaia catalogue of LPVs and the methods we used to compute the publish…

2023 Astronomy and Astrophysics
Gaia 54
JWST's PEARLS: A new lens model for ACT-CL J0102−4915, "El Gordo," and the first red supergiant star at cosmological distances discovered by JWST
DOI: 10.1051/0004-6361/202245238 Bibcode: 2023A&A...672A...3D

Ryan, R. E.; Diego, J. M.; Zitrin, A. +29 more

The first James Webb Space Telescope (JWST) data on the massive colliding cluster El Gordo allow for 23 known families of multiply lensed images to be confirmed and for eight new members of these families to be identified. Based on these families, which have been confirmed spectroscopically by MUSE, we derived an initial lens mo…

2023 Astronomy and Astrophysics
eHST JWST 51
The production of ionizing photons in UV-faint z ∼ 3-7 galaxies
DOI: 10.1051/0004-6361/202245532 Bibcode: 2023A&A...672A.186P

Calabrò, Antonello; Castellano, Marco; Pentericci, Laura +20 more


Aims: The demographics of the production and escape of ionizing photons from UV-faint early galaxies is a key unknown that has hindered attempts to discover the primary drivers of reionization. With the advent of JWST, it is finally possible to observe the rest-frame optical nebular emission from individual sub-L*z > 3 galaxies …

2023 Astronomy and Astrophysics
eHST JWST 51
Gaia Data Release 3. The Solar System survey
DOI: 10.1051/0004-6361/202243796 Bibcode: 2023A&A...674A..12T

Klioner, S. A.; Mignard, F.; Tanga, P. +30 more

Context. The third data release by the Gaia mission of the European Space Agency (DR3) is the first release to provide the community with a large sample of observations for more than 150 thousand Solar System objects, including asteroids and natural planetary satellites. The release contains astrometry (over 23 million epochs) and photometry, alon…

2023 Astronomy and Astrophysics
Gaia 50
The Gaia-ESO survey: Mapping the shape and evolution of the radial abundance gradients with open clusters
DOI: 10.1051/0004-6361/202244957 Bibcode: 2023A&A...669A.119M

Baratella, M.; Gilmore, G.; Recio-Blanco, A. +28 more

Context. The spatial distribution of elemental abundances and their time evolution are among the major constraints to disentangling the scenarios of formation and evolution of the Galaxy.
Aims: In this paper we used the sample of open clusters available in the final release of the Gaia-ESO survey to trace the Galactic radial abundance and abu…

2023 Astronomy and Astrophysics
Gaia 50
New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars. III. Updated mass-loss rates for stellar evolution
DOI: 10.1051/0004-6361/202141948 Bibcode: 2023A&A...676A.109B

Puls, J.; Najarro, F.; Sundqvist, J. O. +2 more

Context. Massive stars lose a large fraction of their mass to radiation-driven winds throughout their entire life. These outflows impact both the life and death of these stars and their surroundings.
Aims: Theoretical mass-loss rates of hot, massive stars are derived to be used in applications such as stellar evolution. The behaviour of these…

2023 Astronomy and Astrophysics
Herschel 50