Dark Matter Halos in Elliptical Galaxies

Details Dark Matter Halos in Elliptical Galaxies Dark Matter Halos in Elliptical Galaxies

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...416l..45b&link_type=abstract

Astrophysical Journal Letters v.416, p.L45

Astronomy and Astrophysics

Astronomy

65

Cosmology: Dark Matter, Galaxies: Elliptical And Lenticular, Cd, Galaxies: Formation, Galaxies: Fundamental Parameters, Galaxies: Kinematics And Dynamics, Galaxies: Structure

Scientific paper

Values of the M/L_B_ ratio in the inner regions of elliptical (E) galaxies are determined using ionized gas disks as tracers of the triaxial potential. These data, when combined with those provided by the H I disks extending to the outer regions, show that the variation of M/L_B_ with galactocentric radius in Es is similar to that of spirals. In particular, it is found that in spirals and Es of the same visible mass the radius where the density of the dark matter equals that of the visible matter occurs at the same distance in units of r_e_, namely at 1.2r_e_. This suggests a similar picture of baryonic collapse into a preexisting DM halo for both Es and spirals.

Affiliated with

Also associated with

No associations

Rating

Dark Matter Halos 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 Dark Matter Halos in Elliptical Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dark Matter Halos in Elliptical Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1325335