Gaia DR2 epoch fluxes Virtual Observatory Resource

Authors
  1. GAIA Collaboration
  2. Published by
    The GAVO DC team
Abstract
A table of the light curves released with Gaia DR2 (about half a million
in total).  In each Gaia band (G, BP, RP), we give epochs, fluxes and
their errors in arrays.  We do not include the quality flags (DR2: “may
be safely ignored for many general purpose applications”).  You can
access them through the associated datalink service if you select
source_id.  You will usually join this table with gaia.dr2light.

We have also removed all entries with NaN observation times; hence,
the array lengths in the different bands can be significantly different,
and the indices in transit_ids do not always correspond to the
indices in the time series.

Furthermore, we only give fluxes and their errors here rather than
magnitudes.  Fluxes can be turned into magnitude using::

	mag = -2.5 log10(flux)+zero point,

where the zero points assumed for Gaia DR2 are
25.6884±0.0018 in G, 25.3514±0.0014 in BP, and
24.7619±0.0019 in RP (VEGAMAG).
Keywords
  1. stars
  2. surveys
  3. astrometry
  4. proper-motions
  5. time-domain-astronomy
See also HTML
http://dc.zah.uni-heidelberg.de/tableinfo/gaia.dr2epochflux
IVOA Identifier IVOID
ivo://org.gavo.dc/gaia/q2/dr2epochflux

Access

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

2018-03-13T08:44:00Z
Resource record created
2018-12-05
updated
2022-01-26T13:38:59Z
Updated

Contact

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