Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 485, Issue 1, Pages 961-971Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stz444
Keywords
catalogues; surveys; binaries: eclipsing
Categories
Funding
- Gordon and Betty Moore Foundation [GBMF5490]
- NSF [AST-1515927, AST-0908816]
- Mt. Cuba Astronomical Foundation
- Center for Cosmology and AstroParticle Physics at the Ohio State University
- Chinese Academy of Sciences South America Center for Astronomy (CAS-SACA)
- Villum Foundation
- Scialog Scholar grant from the Research Corporation [24216]
- Simons Foundation
- IBM Einstein Fellowship from the Institute for Advanced Study, Princeton
- Ministry of Economy, Development, and Tourism's Millennium Science Initiative [IC120009]
- NSFC [11573003, 11721303]
- Charles University [PRIMUS/SCI/17]
- Robert Martin Ayers Sciences Fund
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The All-Sky Automated Survey for Supernovae (ASAS-SN) provides long-baseline (similar to 4 yr) light curves for sources brighter than V less than or similar to 17 mag across the whole sky. The Transiting Exoplanet Survey Satellite (TESS) has started to produce high-quality light curves with a baseline of at least 27 d, eventually for most of the sky. The combination of ASAS-SN and TESS light curves probes both long-and short-term variability in great detail, especially towards the TESS continuous viewing zones (CVZ) at the ecliptic poles. We have produced similar to 1.3 million V-band light curves covering a total of similar to 1000 deg(2) towards the southern TESS CVZ and have systematically searched these sources for variability. We have identified similar to 11 700 variables, including similar to 7 000 new discoveries. The light curves and characteristics of the variables are all available through the ASAS-SN variable stars data base (https://asas-sn.osu.edu/variables). We also introduce an online resource to obtain pre-computed ASAS-SN V-band light curves (https://asas-sn.osu.edu/photometry) starting with the light curves of the similar to 1.3 million sources studied in this work. This effort will be extended to provide ASAS-SN light curves for similar to 50 million sources over the entire sky.
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