Search Publications
Improving the open cluster census. II. An all-sky cluster catalogue with Gaia DR3
Reffert, Sabine; Hunt, Emily L.
Context. Data from the Gaia satellite are revolutionising our understanding of the Milky Way. With every new data release, there is a need to update the census of open clusters.
Aims: We aim to conduct a blind, all-sky search for open clusters using 729 million sources from Gaia DR3 down to magnitude G ∼ 20, creating a homogeneous catalogue o…
JADES: Probing interstellar medium conditions at z ∼ 5.5-9.5 with ultra-deep JWST/NIRSpec spectroscopy
Chevallard, Jacopo; Maseda, Michael V.; Parlanti, Eleonora +42 more
We present emission-line ratios from a sample of 27 Lyman-break galaxies from z ∼ 5.5 − 9.5 with −17.0 < M1500 < −20.4, measured from ultra-deep JWST/NIRSpec multi-object spectroscopy from the JWST Advanced Deep Extragalactic Survey (JADES). We used a combination of 28 h deep PRISM/CLEAR and 7 h deep G395M/F290LP observations to m…
Gaia Data Release 3. Apsis. II. Stellar parameters
Hatzidimitriou, D.; Bouret, J. -C.; Marshall, D. J. +78 more
Context. The third Gaia data release (Gaia DR3) contains, beyond the astrometry and photometry, dispersed light for hundreds of millions of sources from the Gaia prism spectra (BP and RP) and the spectrograph (RVS). This data release opens a new window on the chemo-dynamical properties of stars in our Galaxy, essential knowledge for understanding …
COSMOS2020: The galaxy stellar mass function. The assembly and star formation cessation of galaxies at 0.2< z ≤ 7.5
Sanders, D. B.; Ilbert, O.; Kartaltepe, J. S. +30 more
Context. How galaxies form, assemble, and cease their star formation is a central question within the modern landscape of galaxy evolution studies. These processes are indelibly imprinted on the galaxy stellar mass function (SMF), and its measurement and understanding is key to uncovering a unified theory of galaxy evolution.
Aims: We present…
Gaia Data Release 3. Summary of the variability processing and analysis
Mazeh, T.; Zucker, S.; Szabados, L. +58 more
Context. Gaia has been in operations since 2014, and two full data releases (DR) have been delivered so far: DR1 in 2016 and DR2 in 2018. The third Gaia data release expands from the early data release (EDR3) in 2020, which contained the five-parameter astrometric solution and mean photometry for 1.8 billion sources by providing 34 months of multi…
Gaia Data Release 3. Astrometric binary star processing
Arenou, Frédéric; Halbwachs, Jean-Louis; Teyssier, David +6 more
Context. The Gaia Early Data Release 3 contained the positions, parallaxes, and proper motions of 1.5 billion sources, some of which did not show a good fit to the `single star' model. Binarity is one of the causes of this.
Aims: Four million of these stars were selected and various models were tested to detect binary stars and to derive thei…
Gaia Data Release 3. Mapping the asymmetric disc of the Milky Way
Prusti, T.; Mazeh, T.; Zucker, S. +445 more
Context. With the most recent Gaia data release, the number of sources with complete 6D phase space information (position and velocity) has increased to well over 33 million stars, while stellar astrophysical parameters are provided for more than 470 million sources, and more than 11 million variable stars are identified.
Aims: Using the astr…
Gaia Data Release 3. External calibration of BP/RP low-resolution spectroscopic data
Gilmore, G.; Harrison, D. L.; Fouesneau, M. +46 more
Context.Gaia Data Release 3 contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the European Space Agency (ESA) Gaia satellite during the first 34 months of its operational phase (the same period covered by Gaia early Data Release 3; Gaia EDR3). Low-resolution spectra for 220 million sources …
Gaia Data Release 3. Chemical cartography of the Milky Way
Prusti, T.; Mazeh, T.; Zucker, S. +447 more
Context. The motion of stars has been used to reveal details of the complex history of the Milky Way, in constant interaction with its environment. Nevertheless, to reconstruct the Galactic history puzzle in its entirety, the chemo-physical characterisation of stars is essential. Previous Gaia data releases were supported by a smaller, heterogeneo…
Gaia Data Release 3. Specific processing and validation of all-sky RR Lyrae and Cepheid stars: The RR Lyrae sample
Szabados, L.; Audard, M.; Andrae, R. +18 more
Context. RR Lyrae stars are excellent tracers of the oldest stars (ages ≳ 9-10 Gyr) and standard candles for measuring the distance to stellar systems that are mainly composed of an old stellar population. The Gaia Third Data Release (DR3) publishes a catalogue of full-sky RR Lyrae stars observed during the initial 34 months of science operations.…