QUEST1 Variability Survey. III. Light Curve Catalog Update

Details QUEST1 Variability Survey. III. Light Curve Catalog Update QUEST1 Variability Survey. III. Light Curve Catalog Update

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apjs..181..129r&link_type=abstract

The Astrophysical Journal Supplement, Volume 181, Issue 1, pp. 129-134 (2009).

Astronomy and Astrophysics

Astronomy

1

Catalogs, Methods: Data Analysis, Surveys

Scientific paper

This paper reports an update to the QUEST1 (QUasar Equatorial Survey Team, Phase 1) Variability Survey (QVS) light curve catalog, which links QVS instrumental magnitude light curves to Sloan Digital Sky Survey (SDSS) objects and photometry. In the time since the original QVS catalog release, the overlap between publicly available SDSS data and QVS data has increased by 8% in sky coverage and 16,728 in number of matched objects. The astrometric matching and the treatment of SDSS masks have been refined for the updated catalog. We report on these improvements and present multiple bandpass light curves, global variability information, and matched SDSS photometry for 214,941 QUEST1 objects.
Based on observations obtained at the Llano del Hato National Astronomical Observatory, operated by the Centro de Investigaciones de Astronomía for the Ministerio de Ciencia y Tecnologia of Venezuela.

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