Shells and dark matter in elliptical galaxies

Details Shells and dark matter in elliptical galaxies Shells and dark matter in elliptical galaxies

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...312....1h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 312, Jan. 1, 1987, p. 1-16. Research supported by the University of Califor

Astronomy and Astrophysics

Astrophysics

73

Dark Matter, Elliptical Galaxies, Galactic Structure, Halos, Interstellar Matter, Galactic Rotation, Mass Distribution, Mass To Light Ratios, Radial Distribution

Scientific paper

The radial distribution of matter in three elliptical galaxies with extensive shell systems is investigated. The method relies on the fact that the shells are comprised of stars on nearly radial orbits with known turning points and is analogous to analyses of the rotation curves of spiral galaxies, which are derived from stars on circular orbits with known radii. A simple argument is used to show that the luminous material in NGC 3923 cannot account for the number of shells surrounding this galaxy and that the potential must be dominated by an extended and massive dark component. Model fits for the galaxy potential indicate that the halo mass is ≡40 me, where me is the mass of the luminous component. The total mass-to-light ratio is in the range 100 - 200. For NGC 1344 and NGC 3051 the results are indeterminate.

Affiliated with

Also associated with

No associations

Rating

Shells and dark matter in elliptical 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 Shells and dark matter in elliptical galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shells and dark matter in elliptical galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1622129