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A census of AGB stars in the Milky Way and M31 subgroups of dwarf-spheroidal galaxies

Published online by Cambridge University Press:  12 April 2016

F. Kirschbaum ,
B. Heiling ,
W. Nowotny ,
Ch. Spindler ,
H. Olofsson  and
H.E. Schwarz
F. Kirschbaum
Affiliation:
Institut für Astronomie der Universität Wien, Türkenschanzstraße 17, A-1180 Wien, Austria
B. Heiling
Affiliation:
Institut für Astronomie der Universität Wien, Türkenschanzstraße 17, A-1180 Wien, Austria
W. Nowotny
Affiliation:
Institut für Astronomie der Universität Wien, Türkenschanzstraße 17, A-1180 Wien, Austria
Ch. Spindler
Affiliation:
Institut für Astronomie der Universität Wien, Türkenschanzstraße 17, A-1180 Wien, Austria
H. Olofsson
Affiliation:
SCFAB, Stockholm Observatory /Department of Astronomy, SE-106 91 Stockholm, Sweden
H.E. Schwarz
Affiliation:
Cerro Tololo Inter-American Observatory, NOAO-AURA, Casilla 603, La Serena, Chile

Abstract

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From photometric observations out to the tidal radii of the galaxies, we were able to identify hundreds of new carbon stars, to derive mean absolute magnitudes〈Mi〉, luminosity functions, and the spatial/radial distributions of the carbon stars in these galaxies. For each galaxy this new material will allow estimates of the tips of their RGBs to derive distance moduli, to derive C/M ratios of the AGB populations and bolometric magnitudes Mbol. At the end of our survey a comparison of all quantities of the late-type stars as a function of the properties of the host galaxies will be made possible.

Type
Part 3. Variable stars as tracers of different stellar populations – galactic and globular clusters, LMC/SMC and Local Group galaxies
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 153 - 157
Copyright
Copyright © Astronomical Society of the Pacific 2004

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