The SDSS galaxy angular two-point correlation function
نویسندگان
چکیده
منابع مشابه
Two - Point Angular Correlation Function )
The Two Point Angular Correlation Function (TPACF) is a mathematical equation that has applications in many areas. In our project, the Two Point Angular Correlation Function is used as a way to measure the probability of finding an astronomical body at a given angular distance from another astronomical body. We were given working sequential code as a starting point. The sequential code took in ...
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The Two-Point Angular Correlation Function is a standard analysis tool used to study angular anisotropies. Since BATSE’s sky exposure (the angular sampling of gamma-ray bursts) is anisotropic, the TPACF should at some point identify anisotropies in BATSE burst catalogs due to sky exposure. The effects of BATSE sky exposure are thus explored here for BATSE 3B and 4B catalogs. Sky-exposure effect...
متن کاملThe Angular Correlation Function of Quasars from SDSS DR3
We estimate the two-point angular correlation function (CF) of quasars from SDSS DR3 using a special method of comparison random catalog generation. The best-fit value for the CF power-law index is found to be α = 0.78 ± 0.18 on the 2 < θ < 250 arcmin interval. This is lower (though in marginal agreement) than earlier result of Myers et al. (2005) based on SDSS DR1 catalogue of photometrically-...
متن کاملAngular Correlation Function of Quasars from SDSS DR3
We estimate the two-point angular correlation function of quasars from SDSS DR3. Fitting yields the best-fit value of the power-law index α = 0.92± 0.08. This agrees with earlier results of Myers et al. [4] based on SDSS DR1 catalogue of photometricaly-classified quasars.
متن کاملThe Angular Three-Point Correlation Function in the Quasilinear Regime
We calculate the normalized angular three-point correlation function (3PCF), q, as well as the normalized angular skewness, s3, assuming the small-angle approximation, for a biased mass distribution in flat and open cold-dark-matter (CDM) models with Gaussian initial conditions. The leading-order perturbative results incorporate the explicit dependence on the cosmological parameters, the shape ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2013
ISSN: 1365-2966,0035-8711
DOI: 10.1093/mnras/stt450