UV to NIR Galaxy Evolution and Galaxy Counts

K - band Galaxy Counts

We present new counts of eld galaxies from more than 20 square arcminutes to a limiting magnitude of K=20 and from 2 square arcminutes to K=21.5. At the faintest magnitudes the counts are slightly higher than those reported previously, though still consistent given the small numbers of galaxies in the two samples.

Modelling ISO Galaxy Counts with Luminosity and Merger Rate Evolution

We model galaxy evolution in the 6.75μm and 15μm passbands of the ISO satellite, by combining models of galaxy evolution at optical wavelengths (which are consistent with the optical galaxy counts) with observed spectral energy distributions in the infra-red. Our derived model is consistent with the local 12μm galaxy luminosity function (from IRAS), including the bright end if we place a small ...

Submillimeter Galaxy Number Counts and Magnification by Galaxy Clusters

We present an analytical model which reproduces measured galaxy number counts from surveys in the wavelength range of 500 μm to 2 mm. The model involves a single high-redshift galaxy population with a Schechter luminosity function which has been gravitationally lensed by galaxy clusters in the mass range 10 to 10M⊙. This simple model reproduces both the low flux and the high flux end of the num...

Galaxy evolution at low redshift ? I . Optical counts ?

We present bright galaxy number counts in the blue (16 < B J < 21) and red (15 < R < 19.5) passbands, performed over 145 sq. degrees, both in the northern and southern galactic hemispheres. The work was conducted on Schmidt plates digitized with the MAMA machine, and individually calibrated using an adequate number of CCD sequences. We find a relatively large density of bright galaxies implying...

Galaxy Evolution