CCD surface photometry of galaxies with dynamical data. II. UBR photometry of 39 elliptical galaxies
- Groningen, Rijksuniversiteit (Netherlands) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA) National Optical Astronomical Observatory, Tucson, AZ (USA) Lick Observatory, Santa Cruz, CA (USA) Steward Observatory, Tucson, AZ (USA) Manchester Victoria Univ. (England)
Intrinsic properties of elliptical galaxies and the mechanisms of their formation and evolution are discussed on the basis of high-precision, multicolor, surface photometry of 39 elliptical galaxies and measurements of rotation curves and velocity dispersion profiles. Using the data collected, a number of correlations between the characteristic parameters of the stellar population of the galaxies have been made to explore their structure and kinematics. The luminosity dependence of color gradients is a good discriminant among various models of galaxy formation. The lowest luminosity galaxies in the sample do not show any color gradients. They have boxy isophotes, and are also rotationally flattened. These properties may be related to the fact that they are companions of larger ellipsoidal systems and it could also provide an important clue to the formation of ellipticals. 78 refs.
- OSTI ID:
- 6439681
- Journal Information:
- Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 100; ISSN 0004-6256; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BRIGHTNESS
CHARGE-COUPLED DEVICES
CONFIGURATION
CORRELATIONS
ELECTROMAGNETIC RADIATION
ELLIPTICAL CONFIGURATION
GALACTIC EVOLUTION
GALAXIES
LUMINOSITY
MORPHOLOGY
OPTICAL PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
RADIATIONS
SEMICONDUCTOR DEVICES
ULTRAVIOLET RADIATION
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BRIGHTNESS
CHARGE-COUPLED DEVICES
CONFIGURATION
CORRELATIONS
ELECTROMAGNETIC RADIATION
ELLIPTICAL CONFIGURATION
GALACTIC EVOLUTION
GALAXIES
LUMINOSITY
MORPHOLOGY
OPTICAL PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
RADIATIONS
SEMICONDUCTOR DEVICES
ULTRAVIOLET RADIATION