MASS DETERMINATION WITH GRAVITATIONAL MICROLENSING

Authors
MAO S PACZYNSKI B
Citation
S. Mao et B. Paczynski, MASS DETERMINATION WITH GRAVITATIONAL MICROLENSING, The Astrophysical journal, 473(1), 1996, pp. 57-64
Citations number
23
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
473
Issue
1
Year of publication
1996
Part
1
Pages
57 - 64
Database
ISI
SICI code
0004-637X(1996)473:1<57:MDWGM>2.0.ZU;2-R
Abstract
We present a simple toy model of the distribution of objects responsib le for gravitational microlensing. We use Monte Carlo simulations to d emonstrate how difficult it is to determine the parameters of the lens mass distribution on the basis of the observed distribution of event timescales. A robust determination requires similar to 100 events, or more, even if the geometry of lens distribution and the lens kinematic s are known.