Redshift differences of galaxies in nearby groups

Details Redshift differences of galaxies in nearby groups Redshift differences of galaxies in nearby groups

Jan 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...195l..61h&link_type=abstract

Astrophysical Journal, vol. 195, Jan. 15, 1975, pt. 2, p. L61-L63.

Astronomy and Astrophysics

Astrophysics

6

Astronomical Spectroscopy, Galactic Radiation, Radial Velocity, Red Shift, Cosmology, Doppler Effect, Error Analysis, Hypotheses, Velocity Errors

Scientific paper

It is reported that galaxies in nearby groups exhibit anomalous nonvelocity redshifts. In this discussion, (1) four classes of nearby groups of galacies are analyzed, and no significant nonvelocity redshift effect is found; and (2) it is pointed out that transverse velocities (i.e., velocities transverse to the line of sight of the main galaxy, or center of mass) contribute components to the redshift measurements of companion galaxies. The redshifts of galaxies in nearby groups of appreciable angular size are considerably affected by these velocity projection effects. The transverse velocity contributions average out in rich, isotropic groups, and also in large samples of irregular groups of low membership, as in the four classes referred to in (1), but can introduce apparent discrepancies in small samples (as studied by Arp) of nearby groups of low membership.

Affiliated with

Also associated with

No associations

Rating

Redshift differences of galaxies in nearby groups 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 Redshift differences of galaxies in nearby groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Redshift differences of galaxies in nearby groups will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1750079