Resolving the nature of the large magellanic cloud microlensing event MACHO-LMC-5

A. J. Drake; K. H. Cook; S. C. Keller

doi:10.1086/421773

Resolving the nature of the large magellanic cloud microlensing event MACHO-LMC-5

A. J. Drake^*, K. H. Cook, S. C. Keller

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

We present the results from an analysis of Hubble Space Telescope high-resolution camera data for the Large Magellanic Cloud microlensing event MACHO-LMC-5. By determining the parallax and proper motion of this object, we find that the lens is an M dwarf star at a distance of 578_-53 ⁺⁶⁵ pc with a proper motion of 21.39 ±0.04 mas yr ^-1. On the basis of the kinematics and location of this star, it is more likely to be part of the Galactic thick disk than the thin disk population. We confirm that the microlensing event LMC-5 is a jerk-parallax event.

Original language	English
Pages (from-to)	L29-L32
Journal	Astrophysical Journal
Volume	607
Issue number	1 II
DOIs	https://doi.org/10.1086/421773
Publication status	Published - 20 May 2004

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title = "Resolving the nature of the large magellanic cloud microlensing event MACHO-LMC-5",

abstract = "We present the results from an analysis of Hubble Space Telescope high-resolution camera data for the Large Magellanic Cloud microlensing event MACHO-LMC-5. By determining the parallax and proper motion of this object, we find that the lens is an M dwarf star at a distance of 578-53 +65 pc with a proper motion of 21.39 ±0.04 mas yr -1. On the basis of the kinematics and location of this star, it is more likely to be part of the Galactic thick disk than the thin disk population. We confirm that the microlensing event LMC-5 is a jerk-parallax event.",

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author = "Drake, {A. J.} and Cook, {K. H.} and Keller, {S. C.}",

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doi = "10.1086/421773",

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T1 - Resolving the nature of the large magellanic cloud microlensing event MACHO-LMC-5

AU - Drake, A. J.

AU - Cook, K. H.

AU - Keller, S. C.

PY - 2004/5/20

Y1 - 2004/5/20

N2 - We present the results from an analysis of Hubble Space Telescope high-resolution camera data for the Large Magellanic Cloud microlensing event MACHO-LMC-5. By determining the parallax and proper motion of this object, we find that the lens is an M dwarf star at a distance of 578-53 +65 pc with a proper motion of 21.39 ±0.04 mas yr -1. On the basis of the kinematics and location of this star, it is more likely to be part of the Galactic thick disk than the thin disk population. We confirm that the microlensing event LMC-5 is a jerk-parallax event.

AB - We present the results from an analysis of Hubble Space Telescope high-resolution camera data for the Large Magellanic Cloud microlensing event MACHO-LMC-5. By determining the parallax and proper motion of this object, we find that the lens is an M dwarf star at a distance of 578-53 +65 pc with a proper motion of 21.39 ±0.04 mas yr -1. On the basis of the kinematics and location of this star, it is more likely to be part of the Galactic thick disk than the thin disk population. We confirm that the microlensing event LMC-5 is a jerk-parallax event.

KW - Dark matter

KW - Galaxy: halo

KW - Stars: low-mass, brown dwarfs

UR - http://www.scopus.com/inward/record.url?scp=3042587979&partnerID=8YFLogxK

U2 - 10.1086/421773

DO - 10.1086/421773

M3 - Article

SN - 0004-637X

VL - 607

SP - L29-L32

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 II

ER -

Resolving the nature of the large magellanic cloud microlensing event MACHO-LMC-5

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