The stellar luminosity function in the bulge of M31

Details The stellar luminosity function in the bulge of M31 The stellar luminosity function in the bulge of M31

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....102.1729d&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 102, Nov. 1991, p. 1729-1733.

Astronomy and Astrophysics

Astronomy

24

Andromeda Galaxy, Galactic Bulge, Stellar Luminosity, Galactic Nuclei, Milky Way Galaxy, Spiral Galaxies

Scientific paper

The luminosity function for stars in the bulge of M31 in a region of about 1.44 kpc from its nucleus is derived. It has an upper limit of about 0.5 mag brighter than the steep cutoff observed in the Galactic bulge luminosity function. The shape of the M31 luminosity function, that of Rich and Mould for a region 4.1 arcmin from the nucleus, and the differences between them are all consistent with a model based on a Galactic bulge luminosity function modified by the addition of disk stars located behind M31's bulge. Kent's disk/bulge deconvolution of M31 is used to fix independently the relative amounts of disk contamination at different radii. There is no compelling reason to invoke a stellar population for the bulge of M31 that differs from that of the bulge of the Galaxy.

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