Evolutionary synthesis of the stellar population in elliptical galaxies. I. Ingredients, broad-band colors, and infrared features

Journal Article · Thu Jan 01 00:00:00 EST 1976 · Astrophys. J., v. 203, no. 1, pp. 52-62

DOI:https://doi.org/10.1086/154046· OSTI ID:4027680

Tinsley, B M; Gunn, J E

Broad-band photometric data and infrared line indices have been combined with new results on giant-branch luminosity functions to yield population synthesis for giant elliptical galaxies. If the main-sequence mass function is a power law of slope x, a value x<1 is indicated. This yields rather rapid luminosity evolution and a large correction to the deceleration parameter q$sub 0$ as derived from the Hubble diagram for first-ranked cluster ellipticals. The uncertainties are discussed. (AIP)

• Research Organization: The University of Texas at Dallas and Austin
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-030781
• OSTI ID: 4027680
• Journal Information: Astrophys. J., v. 203, no. 1, pp. 52-62, Other Information: Orig. Receipt Date: 30-JUN-76
• Country of Publication: United States
• Language: English

Related Subjects

N56500* -Physics (Astrophysics &amp; Cosmology)-Galaxies
N56200 -Physics (Astrophysics &amp; Cosmology)-Stars
640105* -Physics Research-Astrophysics &amp; Cosmology- Galaxies
*GALAXIES- STAR EVOLUTION
*MAIN SEQUENCE STARS- MASS
ACCELERATION
COLOR
DISTRIBUTION
ELLIPTICAL CONFIGURATION
GALACTIC EVOLUTION
INFRARED RADIATION
LUMINOSITY
PHOTOMETRY