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ASAS-SN Discovery of 4880 Bright RR Lyrae Variable Stars
Preprint
T. Jayasinghe ,
C. S. Kochanek ,
K. Z. Stanek ,
B. J. Shappee ,
T. W. -S. Holoien ,
T. A. Thompson ,
J. L. Prieto ,
Subo Dong ,
C. A. Britt ,
D. Will
23 January 2018
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Abstract
We present a catalog of 4880 newly identified RR Lyrae variable stars (4433 RRab, 446 RRc and 1 RRd) found during the search for supernovae by the All-Sky Automated Survey for Supernovae (ASAS-SN). The light curves, classified using the "Upsilon" random forest classifier and visually verified, are available through the ASAS-SN variable star database (https://asas-sn.osu.edu/variables). The database also contains light curves for an expanding number of additional new variables (~50,000 at present) and will begin to include the light curves of known variable stars in the near future.