Baryon acoustic oscillations from the SDSS DR10 galaxies angular correlation function
نویسندگان
چکیده
منابع مشابه
The 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 کاملBaryon Acoustic Oscillations
Observations of baryon acoustic oscillations (BAO) in the clustering of galaxies offer an attractive method for setting cosmological constraints. The physics of the BAO production is well understood, and it is hard to imagine that galaxy formation processes will significantly distort this large-scale signal. The large volume of the Universe and redshift range probed by proposed SKA surveys will...
متن کاملDark Energy Constraints from Baryon Acoustic Oscillations
Baryon acoustic oscillations (BAO) in the galaxy power spectrum allows us to extract the scale of the comoving sound horizon at recombination, a cosmological standard ruler accurately determined by the cosmic microwave background anisotropy data. We examine various issues important in the use of BAO to probe dark energy. We find that assuming a flat universe, and priors on Ωm, Ωmh , and Ωbh 2 a...
متن کاملA new bound on the neutrino mass from the SDSS baryon acoustic peak
We have studied bounds on the neutrino mass using new data from the Sloan Digital Sky Survey measurement of the baryon acoustic peak. We find that even in models with a running spectral index where the number of neutrinos and the dark energy equation of state are allowed to vary, the bound on the sum of neutrino masses is robustly below 0.5 eV. Using the SDSS Lyman-α constraint on the amplitude...
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: 2016
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.93.023530