The dark matter content of spiral galaxies

Details The dark matter content of spiral galaxies The dark matter content of spiral galaxies

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379...89s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 379, Sept. 20, 1991, p. 89-93. Research supported by Space Telescope Scienc

Astronomy and Astrophysics

Astrophysics

41

Astronomical Photometry, Dark Matter, Spiral Galaxies, Brightness Distribution, Color-Magnitude Diagram, Mass To Light Ratios

Scientific paper

A novel technique for calculating the fraction of dark material within the optical radius of spiral galaxies is presented. Disk luminosities are converted to disk masses, and the latter are compared to dynamical masses. The method employs the well-established observational result that spiral galaxies have similar central surface brightnesses, as well as published stellar-synthesis evolutionary models, color-magnitude relations, and optical rotation curves. No assumptions about the dark matter distribution are necessary. It is found that the ratio of disk-to-dynamical mass within the optical radius increases roughly as LB exp 0.4. This is in good agreement with the results of Persic and Salucci (1991) which are derived from independent considerations.

Affiliated with

Also associated with

No associations

Rating

The dark matter content of spiral galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The dark matter content of spiral galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The dark matter content of spiral galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1334762