A cross-correlation-based estimate of the galaxy luminosity function
نویسندگان
چکیده
منابع مشابه
The Galaxy–Absorber Cross-Correlation Function
We describe an analysis of the galaxy–absorber cross-correlation function ξga(v, ρ) as a function of velocity separation v, impact parameter separation ρ, and absorber Lyα equivalent width W on impact parameter scales that extend up to ≈ 1 h Mpc.
متن کاملBeyond the galaxy luminosity function
With the advent of large scale surveys (i.e., Legacy Surveys) it is now possible to start looking beyond the galaxy luminosity function (LF) to more detailed statistical representations of the galaxy population, i.e., multivariate distributions. In this review I first summarise the current state-of-play of the B-band global and cluster LFs and then briefly present two promising bivariate distri...
متن کاملEvolution of Galaxy Luminosity Function and Luminosity Function by Density
Using galaxy sample observed by the BATC large-field multi-color sky survey and galaxy data of SDSS in the overlapped fields, we study the dependence of the restframe r-band galaxy luminosity function on redshift and on large-scale environment. The large-scale environment is defined by isodensity contour with density contrast δρ/ρ. The data set is a composite sample of 69,671 galaxies with reds...
متن کاملThe Nearby Optical Galaxy Sample: the Local Galaxy Luminosity Function
In this paper we derive the galaxy luminosity function from the Nearby Optical Galaxy (NOG) sample, which is a nearly complete, magnitude–limited (B ≤14 mag), all–sky sample of nearby optical galaxies (∼6400 galaxies with cz < 5500 km s−1 ). For this local sample, we use galaxy distance estimates based on different peculiar velocity models. Therefore, the derivation of the luminosity function i...
متن کاملGalaxy Luminosity Function: A New Analytic Expression
We propose a new analytic approximation for the luminosity function of galaxies. The suggested expression behaves like the Schechter function at the faint end (φ ∼ L) but departs considerably at the bright end (L >> L∗). We argue here that such a behavior may provide a better fit for the current observational data than does the Schechter function. Its practical interest is stressed by consideri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2018
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/sty545