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The long-period variable stars of M33

Mould, Jeremy and Graham, James R. and Matthews, Keith and Neugebauer, Gerry and Elias, Jonathan (1990) The long-period variable stars of M33. Astrophysical Journal, 349 . pp. 503-509. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20170320-122956612

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Abstract

Infrared photometry of long-period variables (LPVs) in M33 shows that the majority of those identified up to now are supergiants. The period-luminosity relation for these stars yields a distance of M33 of 760 kpc with a 10 percent uncertainty. This uncertainty primarily reflects the uncertain distance of the Large Magellanic Cloud, although the broader P - L relation of M33 is a contributing factor. Cepheid period-luminosity relations yield a distance at the low end of this range; RR Lyrae stars tend toward the high end. The remaining LPVs are asymptotic giant branch stars. There is one confirmed carbon star among them.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1086/168336DOIArticle
http://adsabs.harvard.edu/abs/1990ApJ...349..503MADSArticle
ORCID:
AuthorORCID
Mould, Jeremy0000-0003-3820-1740
Additional Information:© 1990 American Astronomical Society. Received 1989 May 22; accepted 1989 July 31. We gratefully acknowledge support for this project from NSF grant 85-02518 and 87-21705. We also thank Alain Picard for assistance in obtaining the carbon star spectrum, Vance Heron and Sean Lin for help with the infrared camera, and the staff of Palomar Observatory.
Funders:
Funding AgencyGrant Number
NSFAST 85-02518
NSFAST 87-21705
Subject Keywords:galaxies: individual (M33) - stars: long-period variables - stars: pulsation
Record Number:CaltechAUTHORS:20170320-122956612
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170320-122956612
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75243
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:20 Mar 2017 19:44
Last Modified:03 Oct 2019 16:48

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