| The Luminosity Function of Galaxies in the Las Campanas Redshift Survey (2007) | |||||||||||||
Abstract | |||||||||||||
| We present the R-band luminosity function for a sample of 18678 galaxies, with average redshift z = 0:1, from the Las Campanas Redshift Survey (LCRS). The luminosity function may be fit by a Schechter function with M = \Gamma20:29 \Sigma 0:02 + 5 log h, ff = \Gamma0:70 \Sigma 0:05, and OE = 0:019 \Sigma 0:001 h 3 Mpc \Gamma3 , for absolute magnitudes \Gamma23:0 M \Gamma 5 log h \Gamma17:5 and h = H 0 =(100 km s \Gamma1 Mpc \Gamma1 ). Over the same absolute magnitude range, the mean galaxy density is 0:029 \Sigma 0:002 h 3 Mpc \Gamma3 for a volume extending to cz = 60000 km s \Gamma1 . We compare our luminosity function to that from other redshift surveys; in particular our luminosity function normalization is consistent with that of the Stromlo-APM survey, and is therefore a factor of two below the normalization implied by the b J ß 20 bright galaxy counts. Our normalization thus indicates that much more evolution is needed to match the faint galaxy count data, ... | |||||||||||||
Details der Publikation | |||||||||||||
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