Galactic bulge M giants. II - Content and structure of the bulge between B = -3 deg and -12 deg

Galactic bulge M giants. II - Content and structure of the bulge between B = -3 deg and -12 deg

JHKL colors and CO and H2O indices for a sample of 250 M giants derived from surveys along the minor axis of the Galaxy at latitudes between -3 deg and -12 deg are presented and studied. The bolometric magnitudes for the stars are calculated. The effects of latitude on the colors, magnitudes, and in...

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Veröffentlicht in:The Astrophysical journal 1990-04, Vol.353, p.494
Hauptverfasser: Frogel, Jay A., Terndrup, D. M., Blanco, V. M., Whitford, A. E.
Format: Artikel
Sprache:eng
Schlagworte:
640102 > Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources
BRIGHTNESS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTROMAGNETIC RADIATION
GALAXIES
GIANT STARS
INFRARED RADIATION
LUMINOSITY
MILKY WAY
MORPHOLOGY
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
STAR CLUSTERS
STARS 640105 > Astrophysics & Cosmology-- Galaxies
SURVEYS
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Zusammenfassung:JHKL colors and CO and H2O indices for a sample of 250 M giants derived from surveys along the minor axis of the Galaxy at latitudes between -3 deg and -12 deg are presented and studied. The bolometric magnitudes for the stars are calculated. The effects of latitude on the colors, magnitudes, and indices are examined. The bolometric luminosity function for each bulge field is provided and the influence of latitude on luminosity is analyzed. Long-period variables in the bulge, the search for IRAS sources in the surveyed fields, and the IR surface brightness of the bulge are discussed. 74 refs.
ISSN:0004-637X
1538-4357
DOI:10.1086/168639