Resolving the Nature of the Large Magellanic Cloud Microlensing Event MACHO-LMC-5 | Zendy

A. J. Drake | Zendy; K. H. Cook | Zendy; S. Keller | Zendy

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Resolving the Nature of the Large Magellanic Cloud Microlensing Event MACHO-LMC-5

Author(s) -

A. J. Drake,

K. H. Cook,

S. Keller

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/421773

Subject(s) - gravitational microlensing , physics , proper motion , large magellanic cloud , astronomy , astrophysics , parallax , event (particle physics) , population , stars , demography , sociology

We present the results from an analysis of Hubble Space Telescope HighResolution Camera data for the Large Magellanic Cloud microlensing eventMACHO-LMC-5. By determining the parallax and proper motion of this object wefind that the lens is an M dwarf star at a distance of 578(+65/-53)pc with aproper motion of 21.39 +/- 0.04 mas/yr. Based on the kinematics and location ofthis star it more likely to be part of the Galactic thick disk than thin diskpopulation. We confirm that the microlensing event LMC-5 is a jerk-parallaxevent.Comment: 4 pages, 1 figure, Accepted ApJL, minor change

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