The UV surface brightness distribution in the central region of the galaxy M31

Details The UV surface brightness distribution in the central region of the galaxy M31 The UV surface brightness distribution in the central region of the galaxy M31

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980esasp.157..253d&link_type=abstract

The second European International Ultraviolet Explorer (IUE) Conference, held 26-28 March 1980 in Tübingen, West Germany. Edited

Astronomy and Astrophysics

Astronomy

1

Andromeda Galaxy, Galactic Structure, Hot Stars, Iue, Ultraviolet Astronomy, Ultraviolet Radiation, Astronomical Photometry, Galactic Radiation, Late Stars

Scientific paper

International Ultraviolet Explorer observations were used to investigate the UV surface brightness distribution in the central region of M31 to determine the origin of the excess UV light found there. From a comparison with previous UV photometric measurements it is found that the UV distribution is similar to the B light distribution. A possible steeper gradient in the inner bulge is also discussed. Hot stars in old stellar population are thus suggested as the major source of the excess UV light.

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