Results 61 to 70 of about 210,924 (322)
Gaia-DR2 confirms VLBA parallaxes in Ophiuchus, Serpens and Aquila [PDF]
, 2018 We present Gaia-DR2 astrometry of a sample of YSO candidates in Ophiuchus, Serpens Main and Serpens South/W40 in the Aquila Rift, which had been mainly identified by their infrared excess with Spitzer. We compare the Gaia-DR2 parallaxes against published
Briceño, Cesar +11 more
core +3 more sources
A Gaia DR2 view of the open cluster population in the Milky Way [PDF]
Astronomy & Astrophysics, 2018 Context. Open clusters are convenient probes of the structure and history of the Galactic disk. They are also fundamental to stellar evolution studies.
T. Cantat-Gaudin +12 more
semanticscholar +1 more source
Gaia Data Release 3: Processing and validation of BP/RP low-resolution spectral data [PDF]
Astronomy & Astrophysics, 2022 (Abridged) Blue (BP) and Red (RP) Photometer low-resolution spectral data is one of the exciting new products in Gaia Data Release 3 (Gaia DR3). We calibrate about 65 billion individual transit spectra onto the same mean BP/RP instrument through a series
F. Angeli +53 more
semanticscholar +1 more source
Astronomy & Astrophysics, 2018 Context.The secondGaiadata release (GaiaDR2) provides precise five-parameter astrometric data (positions, proper motions, and parallaxes) for an unprecedented number of sources (more than 1.3 billion, mostly stars). This new wealth of data will enable the undertaking of statistical analysis of many astrophysical problems that were previously infeasible
C. Babusiaux +10 more
openaire +11 more sources
Joint astrometric solution of Hipparcos and Gaia: A recipe for the Hundred Thousand Proper Motions project [PDF]
, 2014 The first release of astrometric data from Gaia is expected in 2016. It will contain the mean stellar positions and magnitudes from the first year of observations.
Anderson +19 more
core +1 more source
The Global Dynamical Atlas of the Milky Way Mergers: Constraints from Gaia EDR3–based Orbits of Globular Clusters, Stellar Streams, and Satellite Galaxies [PDF]
Astrophysical Journal, 2022 The Milky Way halo was predominantly formed by the merging of numerous progenitor galaxies. However, our knowledge of this process is still incomplete, especially in regard to the total number of mergers, their global dynamical properties and their ...
K. Malhan +9 more
semanticscholar +1 more source
Geological Magazine, 1992 AbstractGeological evidence suggests that Gaia is endothermic: her body temperature has varied, but within limits; there has been no runaway greenhouse like Venus, nor deep freeze like Mars. This paper presents a hypothesis that the Earth's climate has been ameliorated by living organisms: they have served either as heaters or air-conditioners, and ...
openaire +3 more sources
Improving LSST Photometric Calibration with Gaia Data [PDF]
Publications of the Astronomical Society of the Pacific, 126,
1102, 2014, 2014 We consider the possibility that the Gaia mission can supply data which will improve the photometric calibration of LSST. After outlining the LSST calibra- tion process and the information that will be available from Gaia, we explore two options for using Gaia data.
arxiv +1 more source
Mapping global urban boundaries from the global artificial impervious area (GAIA) data
Environmental Research Letters, 2020 Urban boundaries, an essential property of cities, are widely used in many urban studies. However, extracting urban boundaries from satellite images is still a great challenge, especially at a global scale and a fine resolution.
Xuecao Li +22 more
semanticscholar +1 more source
Gaia Data Release 3. Properties and validation of the radial velocities [PDF]
Astronomy & Astrophysics, 2022 Gaia Data Release 3 (Gaia DR3) contains the second release of the combined radial velocities. It is based on the spectra collected during the first 34 months of the nominal mission.
D. Katz +49 more
semanticscholar +1 more source