Differential population synthesis of SO galaxies. I. The data

Journal Article · Wed Feb 01 00:00:00 EST 1989 · Astrophys. J., Suppl. Ser.; (United States)

DOI:https://doi.org/10.1086/191311· OSTI ID:6224704

Gregg, M D

Spectrophotometric observations of elliptical galaxy nuclei, SO nuclei, and SO disks obtained with an intensified image dissector scanner (IIDS) are presented. The 12 normal ellipticals observed spanned 7 mag in luminosity and included a wide range of line strengths in early-type systems. The SO disk spectra are of discrete disk locations and are not disk-plus-bulge integrated light spectra. The spectrophotometry and supplementary broad-band photometry are described and the effect of the nonlinearity of the IIDS on the flux calibrations is considered. The results of a principal component analysis of the normal ellipticals show that the sample is a one parameter family in line strength and color. 27 references.

• Research Organization: Yale Univ. Observatory, New Haven, CT (USA); Mount Wilson and Las Campanas Observatories, Pasadena, CA (USA)
• OSTI ID: 6224704
• Journal Information: Astrophys. J., Suppl. Ser.; (United States), Vol. 69
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXIES
ELLIPTICAL CONFIGURATION
GALAXY NUCLEI
SPECTROPHOTOMETRY
ABUNDANCE
GALACTIC EVOLUTION
LUMINOSITY
MAGNESIUM
SPATIAL DISTRIBUTION
SPECTROSCOPY
STARS
ALKALINE EARTH METALS
CONFIGURATION
DISTRIBUTION
ELEMENTS
METALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
640105* - Astrophysics & Cosmology- Galaxies