Las Campanas Redshift Survey Results: the 3d Power Spectrumand the Luminosity Function

نویسندگان

  • HUAN LIN
  • Douglas Tucker
چکیده

Some recent results on the galaxy 3D power spectrum and the luminosity function derived from the Las Campanas Redshift Survey (LCRS) are discussed. We will present the LCRS power spectrum, compare it against results from other local redshift surveys, and use it to constrain a number of cold dark matter structure formation models. Then we will proceed to describe the LCRS luminosity function, as well as brieey discuss some related topics, speciically galaxy spectral classiication and the evolution of the galaxy luminosity density.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Density-Dependent Luminosity Functions for Galaxies in the Las Campanas Redshift Survey

Galaxies in the Las Campanas Redshift Survey are classified according to their spectra, and the resulting spectral types are analyzed to determine if local environment affects their properties. We find that the luminosity function of early-type objects varies as a function of local density. Our results suggest that early-type galaxies (presumably ellipticals and S0’s) are, on average, fainter w...

متن کامل

ASTRONOMY AND ASTROPHYSICS 1.4 GHz luminosity function of galaxies in the Las Campanas redshift survey and its evolution

The sample of 1157 radio-identified galaxies from the Las Campanas Redshift Survey (LCRS) (Machalski & Condon 1999) is used to derive the 1.4 GHz luminosity functions of both star-forming (starburst) galaxies with the mean redshift 〈z〉 ≈ 0.07, and AGN-type ones with 〈z〉 ≈ 0.18. These functions are used as a direct measure of their evolution inferred from the evolutionary models of the entire po...

متن کامل

The Luminosity Function of Galaxies in the Las Campanas Redshift Survey

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 = −20.29± 0.02 + 5 log h, α = −0.70± 0.05, and φ = 0.019± 0.001 h Mpc, for absolute magnitudes −23.0 ≤ M − 5 log h ≤ −17.5 and h = H0/(100 km s Mpc). Over the same absolute magnitu...

متن کامل

The Las Campanas Redshift Survey Results: the Redshift-space Autocorrelation Function

Presented are measurements from the Las Campanas Redshift Survey (LCRS) of the galaxy-galaxy autocorrelation function in redshift-space, gg (s). For separations 2:0h ?1 Mpc < s < 16:4h ?1 Mpc, gg (s) can be approximated by a power law with slope = ?1:52 0:03 and correlation length s 0 = 6:28 0:27h ?1 Mpc. A zero-crossing occurs on scales of 30 ? 40h ?1 Mpc. On larger scales, gg (s) uctuates clo...

متن کامل

The Luminosity Function of Galaxies in the Las CampanasRedshift

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 t by a Schechter function with Over the same absolute magnitude range, the mean galaxy density is 0:029 0:002 h 3 Mpc ?3 for a volume extending to cz = 60000 km s ?1. We compare our luminosity function to that from ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007