Journal article
Difference image analysis of galactic microlensing. I. Data analysis
Abstract
This is a preliminary report on the application of Difference Image Analysis (DIA) to Galactic bulge images. The aim of this analysis is to increase the sensitivity to the detection of gravitational microlensing. We discuss how the DIA technique simplifies the process of discovering microlensing events by detecting only objects that have variable flux. We illustrate how the DIA technique is not limited to detection of so-called "pixel lensing" …
Authors
Alcock C; Allsman RA; Alves D; Axelrod TS; Becker AC; Bennett DP; Cook KH; Drake AJ; Freeman KC; Griest K
Journal
Astrophysical Journal, Vol. 521, No. 2 PART 1, pp. 602–612
Publication Date
August 20, 1999
DOI
10.1086/307567
ISSN
0004-637X