Astrometric Microlensing in Crowded Fields with SIM

Details Astrometric Microlensing in Crowded Fields with SIM Astrometric Microlensing in Crowded Fields with SIM

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19710508d&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #105.08; Bulletin of the American Astronomical Society, Vol. 32, p.1578

Astronomy and Astrophysics

Astronomy

Scientific paper

Microlensed stars are typically discovered in crowded fields like the Bulge or the LMC. This crowding can affect SIM measurements of astrometric microlensing in several ways, distorting the measured astrometric excusion and enhancing positional errors from photon noise and pointing errors. In this poster we simulate the effects of field stars that are well-resolved, marginally resolved, and unresolved by SIM. We discuss methods by which SIM can correct for these effects. We find that crowding and (long period) binary companions to the target microlensed star should not impede SIM's ability to measure accurately lens masses and distances. This work was supported in part by the Dept. of Energy under grant DEFG0390ER40546.

Affiliated with

Also associated with

No associations

Rating

Astrometric Microlensing in Crowded Fields with SIM 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 Astrometric Microlensing in Crowded Fields with SIM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astrometric Microlensing in Crowded Fields with SIM will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1727541