The ASAS-SN catalogue of variable stars I: The Serendipitous Survey
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- 4 April 2018
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 477 (3), 3145-3163
- https://doi.org/10.1093/mnras/sty838
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 similar to 2-3 d down to V less than or similar to 17 mag. ASAS-SN has monitored the whole sky since 2014, collecting similar to 100-500 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 catalogue 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 data base (https://asas-sn.osu.edu/variables). The data base 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.Keywords
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