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The ASAS-SN Catalog of Variable Stars I: The Serendipitous Survey

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arxiv 1803.01001 v2 pith:N7FLNA7M submitted 2018-03-02 astro-ph.SR

T. Jayasinghe , C. S. Kochanek , K. Z. Stanek , B. J. Shappee , T. W. -S. Holoien , Todd A. Thompson , J. L. Prieto , Subo Dong
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M. Pawlak J. V. Shields G. Pojmanski S. Otero C. A. Britt D. Will
This is my paper · ORCID
classification astro-ph.SR
keywords asas-snvariablesstarssurveyvariablecurveslightsupernovae
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The All-Sky Automated Survey for Supernovae (ASAS-SN) is the first optical survey to routinely monitor the whole sky with a cadence of $\sim2-3$ days down to V$\lesssim17$ mag. ASAS-SN has monitored the whole sky since 2014, collecting $\sim100-500$ epochs of observations per field. The V-band light curves for candidate variables identified during the search for supernovae are classified using a random forest classifier and visually verified. We present a catalog of 66,179 bright, new variable stars discovered during our search for supernovae, including 27,479 periodic variables and 38,700 irregular variables. V-band light curves for the ASAS-SN variables are available through the ASAS-SN variable stars database (https://asas-sn.osu.edu/variables). The database will begin to include the light curves of known variable stars in the near future along with the results for a systematic, all-sky variability survey.

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