Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (1165) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (25)
· NED Objects (25)
· Also-Read Articles (Reads History)
· HEP/Spires Information
· Translate This Page
Velocity dispersions and mass-to-light ratios for elliptical galaxies
Faber, S. M.; Jackson, R. E.
AA(Lick Observatory, Santa Cruz, Calif.), AB(California, University, Santa Cruz, Calif.)
Astrophysical Journal, vol. 204, Mar. 15, 1976, pt. 1, p. 668-683. (ApJ Homepage)
Publication Date:
NASA/STI Keywords:
Elliptical Galaxies, Galactic Nuclei, Mass To Light Ratios, Power Spectra, Velocity Distribution, Astronomical Spectroscopy, Data Reduction, Light (Visible Radiation), M Stars, Noise Spectra, Spectral Line Width
A&AA ID. AAA017.158.036
Bibliographic Code:


Velocity dispersions for 25 E and S0 galaxies are presented which were measured by employing conventional and Fourier techniques to reduce spectral data obtained in scans of the nuclear regions with an image-dissector scanner. The estimates are based primarily on certain sensitive blends near the Mg b triplet and also on the width of the Na D line. Nuclear values of the mass-to-light ratio (M/L(B)) are calculated using measured values of core radii and central surface brightnesses for several of the sampled galaxies, and it is found that the mean value of M/L(B) for giant ellipticals with an absolute bolometric magnitude of less than -20 is 7(H/50) in solar units. This value agrees well with the values for early-type spirals, implies that there is no large discontinuity in M/L between early-type spirals and ellipticals, and constitutes evidence against a stellar population strongly enriched in M-dwarfs. Both velocity dispersion and M/L(B) are found to be correlated with absolute magnitude for normal ellipticals, and the observed increase in M/L(B) is shown to be consistent with an increase in metal abundance with luminosity. It is concluded that ellipticals are close to being a one-parameter family with total mass as the most important independent variable.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences

More Article Retrieval Options

HELP for Article Retrieval

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints