Search Publications
Gaia Early Data Release 3. Gaia photometric science alerts
Prusti, T.; Gilmore, G.; Smith, M. D. +108 more
Context. Since July 2014, the Gaia mission has been engaged in a high-spatial-resolution, time-resolved, precise, accurate astrometric, and photometric survey of the entire sky.
Aims: We present the Gaia Science Alerts project, which has been in operation since 1 June 2016. We describe the system which has been developed to enable the discove…
The miniJPAS survey: A preview of the Universe in 56 colors
Finoguenov, A.; Cepa, J.; Diego, J. M. +168 more
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will scan thousands of square degrees of the northern sky with a unique set of 56 filters using the dedicated 2.55 m Javalambre Survey Telescope (JST) at the Javalambre Astrophysical Observatory. Prior to the installation of the main camera (4.2 deg2 field-…
The Galaxy Activity, Torus, and Outflow Survey (GATOS). I. ALMA images of dusty molecular tori in Seyfert galaxies
Rouan, D.; Rigopoulou, D.; Hunt, L. K. +32 more
We present the first results of the Galaxy Activity, Torus, and Outflow Survey (GATOS), a project aimed at understanding the properties of the dusty molecular tori and their connection to the host galaxy in nearby Seyfert galaxies. Our project expands the range of active galactic nuclei (AGN) luminosities and Eddington ratios covered by previous s…
The infrared-radio correlation of star-forming galaxies is strongly M⋆-dependent but nearly redshift-invariant since z ∼ 4
Prandoni, I.; Daddi, E.; Elbaz, D. +25 more
Over the past decade, several works have used the ratio between total (rest 8−1000 µm) infrared and radio (rest 1.4 GHz) luminosity in star-forming galaxies (qIR), often referred to as the infrared-radio correlation (IRRC), to calibrate the radio emission as a star formation rate (SFR) indicator. Previous studies constrained the e…
The 10 parsec sample in the Gaia era
Caballero, J. A.; Sozzetti, A.; Reylé, C. +3 more
Context. The nearest stars provide a fundamental constraint for our understanding of stellar physics and the Galaxy. The nearby sample serves as an anchor where all objects can be seen and understood with precise data. This work is triggered by the most recent data release of the astrometric space mission Gaia and uses its unprecedented high preci…
3D kinematics and age distribution of the open cluster population
Castro-Ginard, A.; Jordi, C.; Casamiquela, L. +14 more
Context. Open clusters (OCs) trace the evolution of the Galactic disc with great accuracy. Gaia and large ground-based spectroscopic surveys make it possible to determine their properties and study their kinematics with unprecedented precision.
Aims: We study the kinematical behaviour of the OC population over time. We take advantage of the l…
Extended stellar systems in the solar neighborhood. V. Discovery of coronae of nearby star clusters
Meingast, Stefan; Alves, João; Rottensteiner, Alena
We present a novel view on the morphology and dynamical state of ten prominent, nearby (≤500 pc), and young (∼30-300 Myr) open star clusters with Gaia DR2: α Per, Blanco 1, IC 2602, IC 2391, Messier 39, NGC 2451A, NGC 2516, NGC 2547, Platais 9, and the Pleiades. We introduce a pioneering member-identification method that is informed by cluster bul…
Gaia Early Data Release 3. Acceleration of the Solar System from Gaia astrometry
Prusti, T.; Mazeh, T.; Zucker, S. +414 more
Context. Gaia Early Data Release 3 (Gaia EDR3) provides accurate astrometry for about 1.6 million compact (QSO-like) extragalactic sources, 1.2 million of which have the best-quality five-parameter astrometric solutions.
Aims: The proper motions of QSO-like sources are used to reveal a systematic pattern due to the acceleration of the solar s…
The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1. III. Host-galaxy identifications and value added catalogues
Bondi, M.; Prandoni, I.; Bowler, R. A. A. +40 more
We present the source associations, cross-identifications, and multi-wavelength properties of the faint radio source population detected in the deep tier of the LOFAR Two Metre Sky Survey (LoTSS): the LoTSS Deep Fields. The first LoTSS Deep Fields data release consists of deep radio imaging at 150 MHz of the ELAIS-N1, Lockman Hole, and Boötes fiel…
Improving the open cluster census. I. Comparison of clustering algorithms applied to Gaia DR2 data
Reffert, Sabine; Hunt, Emily L.
Context. The census of open clusters in the Milky Way is in a never-before seen state of flux. Recent works have reported hundreds of new open clusters thanks to the incredible astrometric quality of the Gaia satellite, but other works have also reported that many open clusters discovered in the pre Gaia era may be associations.
Aims: We aim …