Search Publications
Gaia Early Data Release 3. Summary of the contents and survey properties
Prusti, T.; Mazeh, T.; Zucker, S. +423 more
Context. We present the early installment of the third Gaia data release, Gaia EDR3, consisting of astrometry and photometry for 1.8 billion sources brighter than magnitude 21, complemented with the list of radial velocities from Gaia DR2.
Aims: A summary of the contents of Gaia EDR3 is presented, accompanied by a discussion on the difference…
Gaia Early Data Release 3. The astrometric solution
Mora, A.; Esquej, P.; Jordan, S. +94 more
Context. Gaia Early Data Release 3 (Gaia EDR3) contains results for 1.812 billion sources in the magnitude range G = 3-21 based on observations collected by the European Space Agency Gaia satellite during the first 34 months of its operational phase.
Aims: We describe the input data, the models, and the processing used for the astrometric con…
Gaia Early Data Release 3. Parallax bias versus magnitude, colour, and position
Biermann, M.; Klioner, S. A.; Lindegren, L. +14 more
Context. Gaia Early Data Release 3 (Gaia EDR3) gives trigonometric parallaxes for nearly 1.5 billion sources. Inspection of the EDR3 data for sources identified as quasars reveals that their parallaxes are biased, that is, they are systematically offset from the expected distribution around zero, by a few tens of microarcseconds.
Aims: We att…
Gaia Early Data Release 3. Photometric content and validation
Gilmore, G.; Harrison, D. L.; Jordi, C. +39 more
Context. Gaia Early Data Release 3 (Gaia EDR3) contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the European Space Agency Gaia satellite during the first 34 months of its operational phase.
Aims: In this paper, we focus on the photometric content, describing the input data, the algori…
Gaia Early Data Release 3. Catalogue validation
Jordi, C.; Luri, X.; Cantat-Gaudin, T. +33 more
Context. The third Gaia data release is published in two stages. The early part, Gaia EDR3, gives very precise astrometric and photometric properties for nearly two billion sources together with seven million radial velocities from Gaia DR2. The full release, Gaia DR3, will add radial velocities, spectra, light curves, and astrophysical parameters…
Gaia Early Data Release 3. The Gaia Catalogue of Nearby Stars
Prusti, T.; Mazeh, T.; Zucker, S. +420 more
Aims: We produce a clean and well-characterised catalogue of objects within 100 pc of the Sun from the Gaia Early Data Release 3. We characterise the catalogue through comparisons to the full data release, external catalogues, and simulations. We carry out a first analysis of the science that is possible with this sample to demonstrate its po…
The SPHERE infrared survey for exoplanets (SHINE). III. The demographics of young giant exoplanets below 300 au with SPHERE
Moutou, C.; Fantinel, D.; Dominik, C. +108 more
The SpHere INfrared Exoplanet (SHINE) project is a 500-star survey performed with SPHERE on the Very Large Telescope for the purpose of directly detecting new substellar companions and understanding their formation and early evolution. Here we present an initial statistical analysis for a subsample of 150 stars spanning spectral types from B to M …
Age dissection of the Milky Way discs: Red giants in the Kepler field
Khan, S.; Valentini, M.; Chiappini, C. +16 more
Ensemble studies of red-giant stars with exquisite asteroseismic (Kepler), spectroscopic (APOGEE), and astrometric (Gaia) constraints offer a novel opportunity to recast and address long-standing questions concerning the evolution of stars and of the Galaxy. Here, we infer masses and ages for nearly 5400 giants with available Kepler light curves a…
KiDS-1000 catalogue: Weak gravitational lensing shear measurements
Hoekstra, Henk; Heymans, Catherine; Kuijken, Konrad +20 more
We present weak lensing shear catalogues from the fourth data release of the Kilo-Degree Survey, KiDS-1000, spanning 1006 square degrees of deep and high-resolution imaging. Our `gold-sample' of galaxies, with well-calibrated photometric redshift distributions, consists of 21 million galaxies with an effective number density of 6.17 galaxies per s…
Six transiting planets and a chain of Laplace resonances in TOI-178
Alonso, R.; Bouchy, F.; Deleuil, M. +152 more
Determining the architecture of multi-planetary systems is one of the cornerstones of understanding planet formation and evolution. Resonant systems are especially important as the fragility of their orbital configuration ensures that no significant scattering or collisional event has taken place since the earliest formation phase when the parent …