%0 Journal Article
%T Study of Baryon Acoustic Oscillations with SDSS DR13 Data and Measurements of Ω<sub>k</sub> and Ω<sub>DE</sub>(a)
%A B. Hoeneisen
%J International Journal of Astronomy and Astrophysics
%P 11-27
%@ 2161-4725
%D 2017
%I Scientific Research Publishing
%R 10.4236/ijaa.2017.71002
%X We measure the baryon acoustic oscillation (BAO) observables <img src=\"Edit_916ddceb-d8ae-4b86-9c88-3bdbdcbd479a.bmp\" alt=\"\" />, <img src=\"Edit_05133e35-04fc-4899-a651-084ad8e2818d.bmp\" alt=\"\" />, and<img src=\"Edit_fd3eec2c-552e-4b84-89c5-6c68eacf1445.bmp\" alt=\"\" /> as a function of red shift <em>z</em> 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 <img src=\"Edit_57c9842b-bc36-4092-917e-f08e26e2e27d.bmp\" alt=\"\" /> of fluctuations of the Cosmic Microwave Background (CMB), we obtain <img src=\"Edit_0426d546-d663-4b94-86cd-e97a1d52206c.bmp\" alt=\"\" />, <img src=\"Edit_9e018ed4-779e-457f-9ba8-89fd99bcb7c1.bmp\" alt=\"\" style=\"white-space:normal;\" /> and <img src=\"Edit_417bceba-559a-44ca-99aa-3ce94d7bcf64.bmp\" alt=\"\" />for dark energy density allowed to vary as <img src=\"Edit_222e6d3d-8bc3-40bf-bc00-b26c9189d1ad.bmp\" alt=\"\" />. We present measurements of <img src=\"Edit_5112fe1f-f91a-42f5-9ede-74c54c7be82f.bmp\" alt=\"\" /> at six values of the expansion parameter <em>a</em>. Fits with several scenarios and data sets are presented. The data is consistent with space curvature parameter&nbsp;<img src=\"Edit_a95e14d6-2b11-4b16-8bb5-3e46503db842.bmp\" alt=\"\" /> and <img src=\"Edit_38f2fcbe-5ab3-4214-bfbf-a7243dba5d12.bmp\" alt=\"\" style=\"white-space:normal;\" /> constant.
%K Cosmology
%K Dark Energy
%K Baryon Acoustic Oscillations
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=73973