Parameters of 220 million stars from Gaia BP/RP (XP) spectra Virtual Observatory Resource

Authors
  1. Zhang, Xiangyu
  2. Green, Gregory M.
  3. Rix, Hans-Walter
  4. Published by
    The GAVO DC team
Abstract
 We present astrophysical parameters of 220 million stars, based on
Gaia XP spectra and near-infrared photometry from 2MASS and WISE.
Instead of using ab initio stellar models, we develop a data-driven
model of Gaia XP spectra as a function of the stellar parameters, with
a few straightforward built-in physical assumptions. This resource is
a VO re-publication of the resulting catalog of stellar parameters.
For bulk downloads, the covariances, the trained model, and more, see
https://zenodo.org/record/7811871.
Keywords
  1. stellar-properties
  2. milky-way-galaxy
  3. sky-surveys
Bibliographic source Bibcode
2023arXiv230303420Z
See also HTML
http://dc.zah.uni-heidelberg.de/xpparams/q/cone/info
IVOA Identifier IVOID
ivo://org.gavo.dc/xpparams/q/cone

Access

Web browser access HTML
http://dc.zah.uni-heidelberg.de/xpparams/q/cone/form
https://dc.zah.uni-heidelberg.de/xpparams/q/cone/form
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://dc.zah.uni-heidelberg.de/xpparams/q/cone/scs.xml?
https://dc.zah.uni-heidelberg.de/xpparams/q/cone/scs.xml?
IVOA Table Access TAP
http://dc.zah.uni-heidelberg.de/tap
https://dc.zah.uni-heidelberg.de/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2023-06-12T11:51:04Z
Resource record created
2023-06-16T10:53:27Z
updated

Contact

Name
GAVO Data Center Team
Postal Address
Mönchhofstrasse 12-14, D-69120 Heidelberg
E-Mail
gavo@ari.uni-heidelberg.de
Telephone
++49 6221 54 1837