JPL Technical Report Server

Spitzer Space Telescope Observations of the aftermath of Microlensing Event MACHO-LMC-5

Show simple item record

dc.contributor.author Nguyen, Hien T.
dc.contributor.author Kallivayalil, Nitya
dc.contributor.author Werner, Michael W.
dc.contributor.author Alcock, Charles
dc.contributor.author Patten, Brian M.
dc.contributor.author Stern, Daniel
dc.date.accessioned 2008-08-05T18:17:25Z
dc.date.available 2008-08-05T18:17:25Z
dc.date.issued 2004-09
dc.identifier.citation The Astrophysical Journal Supplement Series, 154:266–270, 2004 September en_US
dc.identifier.clearanceno 04-1014
dc.identifier.uri http://hdl.handle.net/2014/40900
dc.description.abstract We have carried out photometry of the microlensing event MACHO-LMC-5 with Spitzer Infrared Array Camera (IRAC) 10 years after the magnification of the LMC source star was recorded. This event is unique in the annals of gravitational microlensing: the lensing star itself has been observed using the Hubble Space Telescope (once with WFPC2 and twice with ACS/HRC). Since the separation between the source and lens at the epoch of the Spitzer observations was ~0".24, the two stars cannot be resolved in the Spitzer images. However, the IRAC photometry clearly establishes that the lens is an M5 dwarf star from its infrared excess, which in turn yields a mass of ~0.2 Mө. This demonstrates the potential of Spitzer to detect the lenses in other gravitational microlensing events. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher American Astronomical Society en_US
dc.subject gravitational lensing en_US
dc.subject infrared en_US
dc.subject Magellanic Clouds en_US
dc.subject stars
dc.title Spitzer Space Telescope Observations of the aftermath of Microlensing Event MACHO-LMC-5 en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search


Browse

My Account