Investigations of the Local Supercluster velocity field. I - Observations close to Virgo, using Tully-Fisher distances and the Tolman-Bondi expanding sphere

Details Investigations of the Local Supercluster velocity field. I - Observations close to Virgo, using Tully-Fisher distances and the Tolman-Bondi expanding sphere Investigations of the Local Supercluster velocity field. I - Observations close to Virgo, using Tully-Fisher distances and the Tolman-Bondi expanding sphere

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260...17t&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 17-32.

Astronomy and Astrophysics

Astronomy

36

Galactic Structure, Local Group (Astronomy), Velocity Distribution, Virgo Galactic Cluster, Astronomical Models, Hubble Constant

Scientific paper

Results are presented of an investigation of the velocity-distance relation close to the direction of the Virgo cluster, with distances from the Tully-Fisher relation, and with attention to the Malmquist bias. For Theta greater than 8 deg, a behavior is revealed which is as expected Tolman-Bondi solutions for an expanding spherical mass distribution. Various density distributions, constrained by the mass inside the Local Group distance, agree with the observations, but only if the mass within the Virgo 6 deg region is close to or larger than the standard Virgo virial mass values. It is inferred that the central 6-degree mass has the standard M (virial) as a rough lower limit. From this it follows, together with the light ratios within the local supercluster and the light enhancement relative to the general field, that light does not trace mass. Background contamination produces an asymmetrical distribution of velocities behind r(Vir).

Affiliated with

Also associated with

No associations

Rating

Investigations of the Local Supercluster velocity field. I - Observations close to Virgo, using Tully-Fisher distances and the Tolman-Bondi expanding sphere 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 Investigations of the Local Supercluster velocity field. I - Observations close to Virgo, using Tully-Fisher distances and the Tolman-Bondi expanding sphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Investigations of the Local Supercluster velocity field. I - Observations close to Virgo, using Tully-Fisher distances and the Tolman-Bondi expanding sphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1203024