New geometric representations of the CMB 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 ...
متن کاملThe Two - Point Correlation Function at Redshift
We present the results of a study of the two-point correlation function for a sample of field galaxies taken from the CNOC cluster survey. The sample consists of 144 galaxies within a contiguous region of space subtending 225 square arcminutes. The objects have r-band magnitudes 17.0 ≤ r ≤ 21.7 and redshifts 0.21 ≤ z ≤ 0.53. The median redshift of the sample is z̄ = 0.36. The real space correlat...
متن کاملDetectability of Gravitational Lensing Effect on the Two-point Correlation Function of Hotspots in the CMB maps
We present quantitative investigations of the weak lensing effect on the two-point correlation functions of local maxima (hotspots), ξpk−pk(θ), in the cosmic microwave background (CMB) maps. The lensing effect depends on the projected mass fluctuations between today and the redshift zrec ≈ 1100. If adopting the Gaussian assumption for the primordial temperature fluctuations field, the peak stat...
متن کاملA Kinematically Consistent Two-Point Correlation Function
A simple kinematically consistent expression for the longitudinal two-point correlation function related to both the integral length scale and the Taylor microscale is obtained. On the inner scale, in a region of width inversely proportional to the turbulent Reynolds number, the function has the appropriate curvature at the origin. The expression for two-point correlation is related to the nonl...
متن کاملA Comparison of Estimators for the Two-Point Correlation Function.
Nine of the most important estimators known for the two-point correlation function are compared using a predetermined, rigorous criterion. The indicators were extracted from over 500 subsamples of the Virgo Hubble volume simulation cluster catalog. The "real" correlation function was determined from the full survey in a 3000 h(-1) Mpc periodic cube. The estimators were ranked by the cumulative ...
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: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.92.043508