Infrared studies of Galactic Centre OH/IR stars

Details Infrared studies of Galactic Centre OH/IR stars Infrared studies of Galactic Centre OH/IR stars

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283..355b&link_type=abstract

In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M

Astronomy and Astrophysics

Astrophysics

1

Agb Stars, Oh/Ir Stars, Galactic Center, Luminosities, Mass Loss, Pl Relation, Stellar Populations

Scientific paper

An overview of infrard studies of OH/IR stars in the Galactic Centre is presented. From modelling of the observed Spectral Energy Distributions we find that the mass loss rates range from 10-6 to 10-4 Msolar/yr. The averaged Mbol ranges from -5.5 to -4 mag. The OH/IR stars fall predominantly below the Mira PL-relation. There is a large overlap in luminosities between the kinematically different groups of OH/IR stars. The metallicities however are likely to be different.

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