Very deep IRAS survey - constraints on the evolution of starburst galaxies

Journal Article · Fri May 01 00:00:00 EDT 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/184883· OSTI ID:6268946

Hacking, P; Houck, J R; Condon, J J

Counts of sources (primarily starburst galaxies) from a deep 60 microns IRAS survey published by Hacking and Houck (1987) are compared with four evolutionary models. The counts below 100 mJy are higher than expected if no evolution has taken place out to a redshift of approximately 0.2. Redshift measurements of the survey sources should be able to distinguish between luminosity-evolution and density-evolution models and detect as little as a 20 percent brightening or increase in density of infrared sources per billion years ago (H/0/ = 100 km/s per Mpc). Starburst galaxies cannot account for the reported 100 microns background without extreme evolution at high redshifts. 21 references.

• Research Organization: Cornell Univ., Ithaca, NY; National Radio Astronomy Observatory, Charlottesville, VA
• OSTI ID: 6268946
• Journal Information: Astrophys. J.; (United States), Vol. 316
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALACTIC EVOLUTION
CONSTRAINTS
FLUX DENSITY
INFRARED RADIATION
INTERPOLATION
RED SHIFT
STAR EVOLUTION
ELECTROMAGNETIC RADIATION
NUMERICAL SOLUTION
RADIATIONS
640105* - Astrophysics & Cosmology- Galaxies