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Related papers: Gaia Data Release 2: Rotational modulation in late…

200 papers

Using Gaia DR2 data, we present an up-to-date sample of white dwarfs within 20 pc of the Sun. In total we identified 139 systems in Gaia DR2, nine of which are new detections, with the closest of these located at a distance of 13.05 pc. We…

Solar and Stellar Astrophysics · Physics 2018-08-15 M. A. Hollands , P. E. Tremblay , B. T. Gaensicke , N. P. Gentile-Fusillo , S. Toonen

The Gaia second Data Release (DR2) presents a first mapping of full-sky RR Lyrae stars and Cepheids observed by the spacecraft during the initial 22 months of science operations. The Specific Object Study (SOS) pipeline, developed to…

Based on data from the ESA Gaia Data Release 2 (DR2) and several ground-based, multi-band photometry surveys we compiled an all-sky catalogue of $39\,800$ hot subluminous star candidates selected in Gaia DR2 by means of colour, absolute…

Solar and Stellar Astrophysics · Physics 2019-01-09 S. Geier , R. Raddi , N. P. Gentile Fusillo , T. R. Marsh

The Gaia spacecraft of the European Space Agency (ESA) has been securing observations of solar system objects (SSOs) since the beginning of its operations. Gaia Data Release 2 (DR2) contains the observations of a selected sample of 14,099…

Earth and Planetary Astrophysics · Physics 2018-08-15 Gaia Collaboration , F. Spoto , P. Tanga , F. Mignard , J. Berthier , B. Carry , A. Cellino

We use Gaia Data Release 2 (DR2) to place 252 Herbig Ae/Be stars in the HR diagram and investigate their characteristics and properties. For all known Herbig Ae/Be stars with parallaxes in Gaia DR2, we collected their atmospheric parameters…

Solar and Stellar Astrophysics · Physics 2018-12-12 M. Vioque , R. D. Oudmaijer , D. Baines , I. Mendigutía , R. Pérez-Martínez

This review highlights the role of the Gaia space mission in transforming white dwarf research. These stellar remnants constitute 5-7% of the local stellar population in volume, yet before Gaia the lack of trigonometric parallaxes hindered…

The occurrence of multiple stars, dominantly binaries, is studied using the \textit{Gaia}-ESA DR2 catalogue. We apply the optimized statistical method that we previously developed for the analysis of 2D patterns. The field of stars is…

Astrophysics of Galaxies · Physics 2022-01-05 Petr Zavada , Karel Píška

The Gaia DR2 radial velocity sample (GDR2RVS), which provides six-dimensional phase-space information on 7.2 million stars, is of great value for inferring properties of the Milky Way. Yet a quantitative and accurate modelling of this…

Instrumentation and Methods for Astrophysics · Physics 2020-10-28 Jan Rybizki , Hans-Walter Rix , Markus Demleitner , Coryn Bailer-Jones , William J. Cooper

Gaia Data Release 2 (DR2) was used to select a sample of 211 central stars of planetary nebulae (CSPNe) with good quality astrometric measurements, that we refer to as GAPN, Golden Astrometry Planetary Nebulae. Gaia astrometric and…

Solar and Stellar Astrophysics · Physics 2021-01-04 I. González-Santamaría , M. Manteiga , A. Manchado , M. A. Gómez-Muñoz , A. Ulla , C. Dafonte

The Gaia Data Release 2 contains the 1st release of radial velocities complementing the kinematic data of a sample of about 7 million relatively bright, late-type stars. Aims: This paper provides a detailed description of the Gaia…

The second data release (DR2) of Gaia provides mean photometry in three bands for $\sim$1.4 billion sources, but light curves and variability properties are available for only $\sim$0.5 million of them. Here, we provide a census of…

Context: The current sample of known brown dwarfs (BDs) around FGK-stars is only of the order of a hundred. The ongoing ESA mission Gaia has already collected its nominal 5 yr of mission data and might operate up to 10 yr. Aims: Using…

Solar and Stellar Astrophysics · Physics 2022-05-25 B. Holl , M. Perryman , L. Lindegren , D. Segransan , M. Raimbault

The Gaia Data Release 1 (DR1) sample of white dwarf parallaxes is presented, including 6 directly observed degenerates and 46 white dwarfs in wide binaries. This data set is combined with spectroscopic atmospheric parameters to study the…

Solar and Stellar Astrophysics · Physics 2017-01-25 P. -E. Tremblay , N. Gentile-Fusillo , R. Raddi , S. Jordan , C. Besson , B. T. Gaensicke , S. G. Parsons , D. Koester , T. Marsh , R. Bohlin , J. Kalirai

The Gaia data release 2 (DR2) contains $>$6000 objects with parallaxes $(Plx+3\times{e\_Plx})>50$mas placing them within 20pc from the Sun. Since the expected numbers extrapolating the well-known 10pc census are much lower, nearby Gaia…

Solar and Stellar Astrophysics · Physics 2020-05-13 Ralf-Dieter Scholz

We present a catalogue of white dwarf candidates selected from Gaia early data release three (EDR3). We applied several selection criteria in absolute magnitude, colour, and Gaia quality flags to remove objects with unreliable measurements…

We report on a comparison of spectroscopic analyses for hydrogen (DA) and helium atmosphere (DB) white dwarfs with Gaia Data Release 2 (DR2) parallaxes and photometry. We assume a reddening law and a mass-radius relation to connect the…

Solar and Stellar Astrophysics · Physics 2018-11-28 P. -E. Tremblay , E. Cukanovaite , N. P. Gentile Fusillo , T. Cunningham , M. Hollands

We present a catalog of 531 white dwarf candidates that have large apparent transverse motions relative to the Sun ($v_{T} > 200$ km s$^{-1}$), thus making them likely members of the local Galactic halo population. The candidates were…

Solar and Stellar Astrophysics · Physics 2020-08-20 Bokyoung Kim , Sebastien Lépine , Ilija Medan

In addition to stellar data, Gaia Data Release 2 (DR2) also contains accurate astrometry and photometry of about 14,000 asteroids covering 22 months of observations. We used Gaia asteroid photometry to reconstruct rotation periods, spin…

Earth and Planetary Astrophysics · Physics 2018-12-05 Josef Durech , Josef Hanus

Gaia is undertaking a deep synoptic survey of the Galaxy, but photometry from individual epochs has, as of yet, only been released for a minimal number of sources. We show that it is possible to identify variable stars in Gaia Data Release…

Instrumentation and Methods for Astrophysics · Physics 2021-03-03 Shion Andrew , Samuel J. Swihart , Jay Strader