Constraining cosmic expansion and gravity with galaxy redshift surveys
نویسندگان
چکیده
منابع مشابه
Constraining Evolution in the Halo Model Using Galaxy Redshift Surveys
We use the latest observations from the 2dF Galaxy Redshift Survey to fit the conditional luminosity function (CLF) formulation of the halo-model for galaxies at z = 0. This fit is then used to test the extent of evolution in the halo occupation distribution (HOD) to z = 0.8, by comparing the predicted clustering from this CLF to preliminary results from the DEEP2 Redshift Survey. We show that ...
متن کاملHigh redshift galaxy surveys
A brief overview on the current status of the census of the early universe population is given. Observational surveys of high redshift galaxies provide direct opportunities to witness the cosmic dawn and to have better understanding of how and when infant galaxies evolve into mature ones. It is a much more astronomical approach in contrast to the physical approach of to study the spatial fluctu...
متن کاملMeasuring Galaxy Environments with Deep Redshift Surveys
We study the applicability of several galaxy environment measures (n-nearest-neighbor distance, counts in an aperture, and Voronoi volume) within deep redshift surveys. Mock galaxy catalogs are employed to mimic representative photometric and spectroscopic surveys at high redshift (z ∼ 1). We investigate the effects of survey edges, redshift precision, redshift-space distortions, and target sel...
متن کاملLocal redshift surveys and galaxy evolution
We present observations of galaxy environmental dependencies using data from the 2dF Galaxy Redshift Survey. From a combined analysis of the luminosity function, Butcher-Oemler effect and trends in Hα line strengths we find support for a model where galaxy properties are mainly set by initial conditions at the time of their formation.
متن کاملMock 2dF and SDSS galaxy redshift surveys
We present a comprehensive set of mock 2dF and SDSS galaxy redshift surveys constructed from a set of large, high-resolution cosmological N -body simulations. The radial selection functions and geometrical limits of the catalogues mimic those of the genuine surveys. The catalogues span a wide range of cosmologies, including both open and flat universes. In all the models the galaxy distribution...
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: Journal of Cosmology and Astroparticle Physics
سال: 2013
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2013/02/007