MOA-2010-BLG-523:" Failed Planet"= RS CVn Star
Författare
Summary, in English
The Galactic bulge source MOA-2010-BLG-523S exhibited short-term deviations from a standard microlensing light curve near the peak of an A(max) similar to 265 high-magnification microlensing event. The deviations originally seemed consistent with expectations for a planetary companion to the principal lens. We combine long-term photometric monitoring with a previously published high-resolution spectrum taken near peak to demonstrate that this is an RS CVn variable, so that planetary microlensing is not required to explain the light-curve deviations. This is the first spectroscopically confirmed RS CVn star discovered in the Galactic bulge.
Avdelning/ar
Publiceringsår
2013
Språk
Engelska
Publikation/Tidskrift/Serie
Astrophysical Journal
Volym
763
Issue
2
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
American Astronomical Society
Ämne
- Astronomy, Astrophysics and Cosmology
Nyckelord
- gravitational lensing: micro
- planetary systems
- starspots
- stars:
- variables: general
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0004-637X