Infrared colors of a complete sample of faint galaxies

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

21

Galactic Evolution, Galaxies, Infrared Astronomy, Red Shift, Color, Infrared Spectrophotometers, Star Formation Rate

Scientific paper

The infrared color-redshift relation for galaxies of known redshift is reexamined. The relation defined by measurements of optically selected galaxies lies fairly close to that expected from model predictions. Infrared colors may therefore offer a reasonable method for separating the effects of luminosity evolution and redshift when discussing optically selected samples of faint field galaxies. This method is applied to a complete sample of 47 field galaxies at optical magnitude 21.5. The infrared and optical data imply that a third of the field galaxies lie at redshifts beyond those expected from nonevolution models. The optical-to-infrared colors of these distant galaxies are generally bluer and the entire sample is consistent with a more vigorous star formation rate beyond a redshift of about 0.5.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Infrared colors of a complete sample of faint 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 Infrared colors of a complete sample of faint galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared colors of a complete sample of faint galaxies will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1586953

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.