Infrared photometry of the semistellar nucleus of M31

Details Infrared photometry of the semistellar nucleus of M31 Infrared photometry of the semistellar nucleus of M31

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240..779p&link_type=abstract

Astrophysical Journal, Part 1, vol. 240, Sept. 15, 1980, p. 779-784.

Astronomy and Astrophysics

Astronomy

39

Andromeda Galaxy, Astronomical Photometry, Galactic Nuclei, Infrared Astronomy, Infrared Photometry, Astronomical Models, Carbon Monoxide, Colorimetry, Molecular Spectra, Water

Scientific paper

New broad-band infrared JHK data and narrow-band CO and H2O indices for the semistellar nucleus of M31 are presented. The data were obtained specifically to test a prediction of a recent synthesis model by Faber and French in which the ratio of dwarf-to-giant light increases strongly in going from the bulge to the nucleus of M31. The new infrared data do not support such a model. Some alternative explanations for the behavior of the various indices are given, but the apparent conflict between the Faber-French interpretation of the strength of the Na I 8190 A feature and our data is not satisfactorily resolved.

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