Skip navigation
Skip navigation

The MACHO Project: Microlensing Results from 5.7 Years of Large Magellanic Cloud Observations

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

Description

We report on our search for microlensing toward the Large Magellanic Cloud (LMC). Analysis of 5.7 yr of photometry on 11.9 million stars in the LMC reveals 13-17 microlensing events. A detailed treatment of our detection efficiency shows that this is significantly more than the ∼2-4 events expected from lensing by known stellar populations. The timescales (t̂) of the events range from 34 to 230 days. We estimate the microlensing optical depth toward the LMC from events with 2 < t̂ < 400 days to...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
URI: http://hdl.handle.net/1885/91212
Source: Astrophysical Journal, The

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  23 August 2018/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator