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Miras and Mass Loss in the Local Group

Published online by Cambridge University Press:  25 May 2016

Albert A. Zijlstra  and
Timothy R. Bedding
Albert A. Zijlstra
Affiliation:
UMIST, Department of Physics, PO Box 88, Manchester M60 1QD, UK
Timothy R. Bedding
Affiliation:
School of Physics, University of Sydney, Sydney 2006, Australia

Abstract

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Evolved AGB stars pass through a phase of heavy mass loss during which they become optically obscured. We describe an observational program to find and study such stars in the Magellanic Clouds. Many of the obscured stars are found to be luminous carbon stars, a population previously missing. We discuss the Mira PL relation, valid before the onset of the heaviest mass loss. We find that a number of semi-regulars fit this relation, based on Hipparcos parallaxes. No evidence is seen for a Z-dependence, giving a powerful potential distance indicator. We derive a distance modulus to the LMC of m − M = 18.63 ± 0.09 as well as a bright calibration for the Horizontal Branch in globular clusters.

Type
Part 3: Star Formation Processes and Chemical Evolution
Information
Symposium - International Astronomical Union , Volume 192: The Stellar Content of Local Group Galaxies , 1999 , pp. 348 - 355
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Alonso, V.M., Minniti, D., Zijlstra, A.A., Tolstoy, E. 1998, A&A, submitted Google Scholar
Bedding, T.R., Zijlstra, A.A. 1998, ApJ, 506, L47 Google Scholar
Blommaert, J.A.D.L., van der Veen, W.E.C.J., van Langevelde, H. J., et al. 1998, A&A, 329, 991 Google Scholar
Chaboyer, B. 1998, http://xxx.lanl.gov/abs/astro-ph/9808202 Google Scholar
Costa, E., Frogel, J.A. 1996, AJ, 112, 2607 CrossRefGoogle Scholar
Feast, M.W. 1996, MNRAS, 278, 11 Google Scholar
Feast, M.W., Glass, I.S., Whitelock, P.A., Catchpole, R.M. 1989, MNRAS, 241, 375 Google Scholar
Glass, I.S., Lloyd Evans, T. 1981, Nature, 291, 303 Google Scholar
Groenewegen, M.A.T., Blommaert, J.A.D.L. 1998, A&A, 332, 25 Google Scholar
Harris, W.E. 1996, AJ, 112, 1487 (http://www.physics.mcmaster.ca/Globular.html)Google Scholar
Iben, I. 1981, ApJ, 246, 278 Google Scholar
Koen, C. 1992, MNRAS, 256, 65 CrossRefGoogle Scholar
Reid, I.N. 1991, ApJ, 382, 143 Google Scholar
van Leeuwen, F., Feast, M.W., Whitelock, P.A., Yudin, B. 1997, MNRAS, 287, 955 Google Scholar
Van Loon, J. Th., et al. 1998a, A&A, 329, 169 Google Scholar
van Loon, J. Th., Zijlstra, A.A., Groenewegen, M.A.T. 1998b, A&A, submitted Google Scholar
Whitelock, P.A. 1986, MNRAS, 219, 525 Google Scholar
Wood, P.R. 1990, in: From Miras to Planetary Nebulae, which path for stellar evolution? Edition Frontieres, p. 32 Google Scholar
Wood, P.R., Sebo, K.M. 1996, MNRAS, 282, 958 Google Scholar
Wood, P.R., Whiteoak, J.B., Hughes, M.B., Bessell, M.S., Gardner, F.F., Hyland, A.R. 1992, ApJ 397, 552 Google Scholar
Zijlstra, A.A., Loup, C., Waters, L.B.F.M., Whitelock, P.A.J.Th., van Loon, F., Guglielmo, F. 1996, MNRAS, 279, 32 Google Scholar