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1.4. Miras as probes of the Galactic bulge

Published online by Cambridge University Press:  25 May 2016

S.M.G. Hughes ,
R.M. Catchpole ,
P.A. Whitelock  and
M.W. Feast
S.M.G. Hughes
Affiliation:
Royal Greenwich Observatory, Cambridge, United Kingdom
R.M. Catchpole
Affiliation:
Royal Greenwich Observatory, Cambridge, United Kingdom
P.A. Whitelock
Affiliation:
South African Astronomical Observatory, South Africa
M.W. Feast
Affiliation:
Astronomy Dep., University of Cape Town, South Africa

Extract

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Mira variables span a wide range of stellar populations and have a well-defined K, log P relation (e.g. Feast et al 1989; Hughes & Wood 1990), so can be used to map out the 3-D distribution of the bulge. Using IRAS-selected Miras, Whitelock & Catchpole (1992) showed for the first time from individual stellar distances that the bulge had a bar-like structure, but there is some uncertainty as to whether they obey the same K, log P relation as optically selected Miras. Hence the need for confirmation from an optical Mira survey.

Type
Part I. Stellar Cluster, Star Formation
Information
Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 23 - 24
Copyright
Copyright © Kluwer 1998 

References

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