Galaxy-Galaxy Lensing Studies from COMBO-17
نویسندگان
چکیده
منابع مشابه
Galaxy Luminosity Functions to Z ∼ 1: Deep2 vs. Combo-17 and Implications for Red Galaxy Formation
The DEEP2 and COMBO-17 surveys are used to study the evolution of the luminosity function of red and blue galaxies to z ∼ 1. Schechter function fits show that, since z = 1, M∗ B dims by ∼ 1.3 mag per unit redshift for both color classes, φ∗ of blue galaxies shows little change, while φ∗ for red galaxies has formally nearly quadrupled. At face value, the number density of blue galaxies has remai...
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Gravitational light deflection due to mass along the line-of-sight will distort the images of background sources. This effect has been used successfully to investigate the mass distribution of galaxy clusters. Although an individual galaxy is not massive enough to cause a detectable lensing distortion in the background population, this effect can be measured statistically for a population of ga...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2004
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s174392130500205x