MOA-2010-BLG-523: "Failed Planet" = RS CVn Star (CROSBI ID 191997)
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Podaci o odgovornosti
Gould, A. ; ... ; Dominis Prester, Dijana ; ... ; Zub, M.
engleski
MOA-2010-BLG-523: "Failed Planet" = RS CVn Star
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 ~ 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.
gravitational lensing: micro; planetary systems; starspots; stars: variables: general
The μFUN Collaboration, The OGLE Collaboration, The MiNDSTEp Consortium , The PLANET Collaboration.
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Podaci o izdanju
763 (2)
2013.
141-1-141-11
objavljeno
0004-637X
10.1088/0004-637X/763/2/141