SIMBAD references

2021ApJ...908..180A - Astrophys. J., 908, 180-180 (2021/February-3)

Identifying candidate optical variables using Gaia Data Release 2.


Abstract (from CDS):

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 2 by selecting stars with unexpectedly large photometric uncertainties given their brightness and number of observations. By comparing our results to existing catalogs of variables, we show that information on the amplitude of variability is also implicitly present in the Gaia photometric uncertainties. We present a catalog of about 9.3 million candidate variable stars, and discuss its limitations and prospects for future tests and extensions.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Variable stars - Sky surveys - Catalogs

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 2

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2021ApJ...908..180A and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact