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The MACHO Project LMC Variable Star Inventory. VIII. The Recent Star Formation History of the Large Magellanic Cloud from the Cepheid Period Distribution

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

Description

We present an analysis of the period distribution of about 1800 Cepheids in the LMC, based on data obtained by the MACHO microlensing experiment and on a previous catalog by C. H. Payne Gaposchkin. Using stellar evolution and pulsation models, we construct theoretical period-frequency distributions that are compared with the observations. These models reveal that a significant burst of star formation has occurred recently in the LMC (∼1.15 × 108 yr). We also show that during the last ∼ 108 yr,...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
URI: http://hdl.handle.net/1885/91785
Source: Astronomical Journal

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