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MOA-2010-BLG-523:" Failed Planet"= RS CVn Star

Gould, A.; Yee, J. C.; Bond, I. A.; Udalski, A.; Han, C.; Jorgensen, U. G.; Greenhill, J.; Tsapras, Y.; Pinsonneault, M. H. and Bensby, Thomas LU , et al. (2013) In Astrophysical Journal 763(2).
Abstract
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.
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publication status
published
subject
keywords
gravitational lensing: micro, planetary systems, starspots, stars:, variables: general
in
Astrophysical Journal
volume
763
issue
2
publisher
American Astronomical Society
external identifiers
  • wos:000313869800072
  • scopus:84872737092
ISSN
0004-637X
DOI
10.1088/0004-637X/763/2/141
language
English
LU publication?
yes
id
6a043b71-20f2-4a66-a71d-013361bdffad (old id 3590947)
alternative location
http://arxiv.org/abs/1210.6045
date added to LUP
2013-03-19 13:56:40
date last changed
2019-02-20 05:55:21
@article{6a043b71-20f2-4a66-a71d-013361bdffad,
  abstract     = {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.},
  articleno    = {141},
  author       = {Gould, A. and Yee, J. C. and Bond, I. A. and Udalski, A. and Han, C. and Jorgensen, U. G. and Greenhill, J. and Tsapras, Y. and Pinsonneault, M. H. and Bensby, Thomas and Allen, W. and Almeida, L. A. and Bos, M. and Christie, G. W. and DePoy, D. L. and Dong, Subo and Gaudi, B. S. and Hung, L-W and Jablonski, F. and Lee, C-U and McCormick, J. and Moorhouse, D. and Munoz, J. A. and Natusch, T. and Nola, M. and Pogge, R. W. and Skowron, J. and Thornley, G. and Abe, F. and Bennett, D. P. and Botzler, C. S. and Chote, P. and Freeman, M. and Fukui, A. and Furusawa, K. and Harris, P. and Itow, Y. and Ling, C. H. and Masuda, K. and Matsubara, Y. and Miyake, N. and Ohnishi, K. and Rattenbury, N. J. and Saito, To. and Sullivan, D. J. and Sumi, T. and Suzuki, D. and Sweatman, W. L. and Tristram, P. J. and Wada, K. and Yock, P. C. M. and Szymanski, M. K. and Soszynski, I. and Kubiak, M. and Poleski, R. and Ulaczyk, K. and Pietrzynski, G. and Wyrzykowski, L. and Alsubai, K. A. and Bozza, V. and Browne, P. and Burgdorf, M. J. and Novati, S. Calchi and Dodds, P. and Dominik, M. and Finet, F. and Gerner, T. and Hardis, S. and Harpsoe, K. and Hessman, F. V. and Hinse, T. C. and Hundertmark, M. and Kains, N. and Kerins, E. and Liebig, C. and Mancini, L. and Mathiasen, M. and Penny, M. T. and Proft, S. and Rahvar, S. and Ricci, D. and Sahu, K. C. and Scarpetta, G. and Schaefer, S. and Schoenebeck, F. and Snodgrass, C. and Southworth, J. and Surdej, J. and Wambsganss, J. and Street, R. A. and Horne, K. and Bramich, D. M. and Steele, I. A. and Albrow, M. D. and Bachelet, E. and Batista, V. and Beatty, T. G. and Beaulieu, J-P and Bennett, C. S. and Bowens-Rubin, R. and Brillant, S. and Caldwell, J. A. R. and Cassan, A. and Cole, A. A. and Corrales, E. and Coutures, C. and Dieters, S. and Prester, D. Dominis and Donatowicz, J. and Fouque, P. and Henderson, C. B. and Kubas, D. and Marquette, J-B and Martin, R. and Menzies, J. W. and Shappee, B. and Williams, A. and van Saders, J. and Zub, M.},
  issn         = {0004-637X},
  keyword      = {gravitational lensing: micro,planetary systems,starspots,stars:,variables: general},
  language     = {eng},
  number       = {2},
  publisher    = {American Astronomical Society},
  series       = {Astrophysical Journal},
  title        = {MOA-2010-BLG-523:" Failed Planet"= RS CVn Star},
  url          = {http://dx.doi.org/10.1088/0004-637X/763/2/141},
  volume       = {763},
  year         = {2013},
}