Disk brightness distribution of a red giant from observations of gravitational microlensing

Details Disk brightness distribution of a red giant from observations of gravitational microlensing Disk brightness distribution of a red giant from observations of gravitational microlensing

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999arep...43..601b&link_type=abstract

Astronomy Reports, Volume 43, Issue 9, September 1999, pp.601-607

Astronomy and Astrophysics

Astronomy

3

Scientific paper

The results of an analysis of observations of gravitational microlensing of a Galactic-bulge red giant-MACHO Alert 95-30, obtained by the international MACHO and GMAN teams-are presented. Assuming circular symmetry of the source, the radial brightness distribution is searched for in the set of functions that are nonnegative and nonincreasing with distance from the stellar-disk center. The restored brightness distribution is in good agreement with the model-fitting results, and is qualitatively consistent with calculations of the extended model atmospheres of late-type giant

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