Distribution of dark matter in the spiral galaxy NGC 3198

Details Distribution of dark matter in the spiral galaxy NGC 3198 Distribution of dark matter in the spiral galaxy NGC 3198

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...295..305v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 295, Aug. 15, 1985, p. 305-313.

Physics

291

Dark Matter, Disk Galaxies, Galactic Structure, Mass Distribution, Matter (Physics), Spiral Galaxies, Astronomical Models, Galactic Rotation, Halos, Mass To Light Ratios

Scientific paper

Two-component mass models, consisting of an exponential disk and a spherical halo, are constructed to fit a newly determined rotation curve of NGC 3198 that extends to 11 disk scale lengths. The amount of dark matter inside the last point of the rotation curve, at 30 kpc, is at least 4 times larger than the amount of visible matter, with M/L(B)tot = 18 solar M/L(B). The maximum mass-to-light ratio for the disk is M/L(B) = 3.6. The available data cannot discriminate between disk models with low M/L and high M/L, but arguments are presented which suggest that the true mass-to-light ratio of the disk is close to the maximum computed value. The core radius of the distribution of dark matter is found to satisfy R(core) of between 1.7 and 12.5 kpc.

Affiliated with

Also associated with

No associations

Rating

Distribution of dark matter in the spiral galaxy NGC 3198 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 Distribution of dark matter in the spiral galaxy NGC 3198, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distribution of dark matter in the spiral galaxy NGC 3198 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-752960