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Difference Image Analysis of Galactic Microlensing I. Data Analysis

Alcock, Charles; Allsman, Robyn; Alves, David R; Axelrod, Tim; Becker, Andrew C; Bennett, D P; Cook, Kem H; Drake, Andrew John; Freeman, Kenneth; Griest, K; Lehner, M J; Marshall, S L; Minniti, Dante; Peterson, Bruce; Pratt, M; Quinn, Peter J; Stubbs, Christopher W; Sutherland, William J; Tomaney, A B; Vandehei, T; Welch, D L

Description

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" events but can also be used to improve photometry...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
URI: http://hdl.handle.net/1885/91788
Source: Astrophysical Journal, The

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