Status | Confirmed |
Seminar Series | APC-COLLOQUIUM |
Subjects | astro-ph |
Date | Friday 30 November 2018 |
Time | 11:00 |
Institute | APC |
Seminar Room | 454A |
Speaker's Last Name | Katz |
Speaker's First Name | David |
Speaker's Email Address | |
Speaker's Institution | Observatoire de Paris |
Title | The second Gaia data release : content and first scientific results |
Abstract | The second Gaia data release (DR2) has been published on 25 April 2018. It contains the parallaxes and proper motions of 1.3 billion sources (versus 2 millions in DR1) as well as the positions and G-magnitudes of 400 millions additional sources. DR2 also contains new products, including Bp/Rp-magnitudes of 1.4 billion sources, 7.2 millions line-of-sight velocities, stellar parameters for several tens millions stars, the detection of half a million variable stars and 14000 asteroids. In this seminar, I will detail the contents and performances of the release, discuss the usage of the data and I will present some of the first scientific results. |
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To Generate a poster for this seminar : [ Postscript | PDF ]
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[ English version ] |