The Rotation Velocity - Density Relation

Details The Rotation Velocity - Density Relation The Rotation Velocity - Density Relation

1996-05-28

arxiv.org/abs/astro-ph/9605173v1

Astronomy and Astrophysics

Astrophysics

11 pages, 9 postscript figures; to appear in July 1996 AJ

Scientific paper

10.1086/117984

We have assembled 21-cm linewidths for 376 of the 732 galaxies in a magnitude-limited redshift survey of the the Perseus-Pisces region. We analyze a distance limited subset of 271 galaxies (131 widths) to examine the relationship between linewidth and local density. The sample indicates that galaxies with linewidths $\gtrsim 480$ km/s are absent from regions where the galaxy density is $\lesssim 0.03$ galaxies Mpc$^{-3}$ ($M_{B(0)}< -18.3$). This effect is in the direction predicted by standard CDM models. Galaxies with linewidths $\lesssim$ 480 km/s appear throughout the sample. The observational constraints could be substantially improved with a larger sample, IR photometry, and more uniform 21-cm data.

Affiliated with

Also associated with

No associations

Rating

The Rotation Velocity - Density Relation 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 Rotation Velocity - Density Relation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Rotation Velocity - Density Relation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-602566