Solving the microlensing puzzle: An HST high-resolution imaging approach

Details Solving the microlensing puzzle: An HST high-resolution imaging approach Solving the microlensing puzzle: An HST high-resolution imaging approach

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006hst..prop10832p&link_type=abstract

HST Proposal ID #10832. Cycle 15

Computer Science

Scientific paper

We propose to use the HST Advanced Camera for Surveys High Resolution Channel to obtain high resolution imaging data for 10 bona-fide LMC microlensing events seen in the original MACHO survey. The purpose of this survey will be to assess whether or not the lens and source stars have separated enough to be resolved since the original microlensing event took place - about a decade has passed since the original MACHO survey and the HST WFPC2 follow-up observations of the microlensing events. If the components of the lensing event are resolved, we will determine the apparent magnitude and color of both the lens and the source stars. These data, in combination with Spitzer/IRAC data and Magellan near-IR JHK data, will be used to ascertain the basic properties of the lens stars. With the majority of the microlensing events in the original MACHO survey observed at the highest spatial resolution currently possible, we will be able to draw important conclusions as to what fraction of these events have lenses which belong to some population of dwarf stars in the disk and what fraction must be due to lenses in the halo or beyond. These data will greatly increase our understanding of the structure of the Galaxy by characterizing the stellar population responsible for the gravitational microlensing.

Affiliated with

Also associated with

No associations

Rating

Solving the microlensing puzzle: An HST high-resolution imaging approach does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Solving the microlensing puzzle: An HST high-resolution imaging approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solving the microlensing puzzle: An HST high-resolution imaging approach will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1792619