TITLE:
Study of Baryon Acoustic Oscillations with SDSS DR13 Data and Measurements of Ωk and ΩDE(a)
AUTHORS:
B. Hoeneisen
KEYWORDS:
Cosmology, Dark Energy, Baryon Acoustic Oscillations
JOURNAL NAME:
International Journal of Astronomy and Astrophysics,
Vol.7 No.1,
February
7,
2017
ABSTRACT: We measure the baryon acoustic oscillation (BAO) observables , , and as a function of red shift z in the range 0.1 to 0.7 with Sloan Digital Sky Survey (SDSS) data release DR13. These observables are independent and satisfy a consistency relation that provides discrimination against miss-fits due to background fluctuations. From these measurements and the correlation angle of fluctuations of the Cosmic Microwave Background (CMB), we obtain , and for dark energy density allowed to vary as . We present measurements of at six values of the expansion parameter a. Fits with several scenarios and data sets are presented. The data is consistent with space curvature parameter and constant.