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Long Secondary Periods in variable red giants

Nicholls, Christine; Wood, Peter R; Cioni, M.-R. L; Soszynski, Igor

Description

We present a study of a sample of Large Magellanic Cloud red giants exhibiting Long Secondary Periods (LSPs). We use radial velocities obtained from VLT spectral observations and MACHO and OGLE light curves to examine properties of the stars and to evaluate models for the cause of LSPs. This sample is much larger than the combined previous studies of Hinkle et al. and Wood, Olivier & Kawaler. Binary and pulsation models have enjoyed much support in recent years. Assuming stellar pulsation, we...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/32224
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2009.15401.x

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