ACOUSTIC SCALE FROM THE ANGULAR POWER SPECTRA OF SDSS-III DR8 PHOTOMETRIC LUMINOUS GALAXIES

被引：88

作者：

Seo, Hee-Jong ^{[1
,2
]}

Ho, Shirley ^{[3
,4
]}

White, Martin ^{[2
,3
,5
]}

Cuesta, Antonio J. ^{[6
]}

Ross, Ashley J. ^{[7
]}

Saito, Shun ^{[5
]}

Reid, Beth ^{[3
]}

Padmanabhan, Nikhil ^{[6
]}

Percival, Will J. ^{[7
]}

de Putter, Roland ^{[8
]}

Schlegel, David J. ^{[3
]}

Eisenstein, Daniel J. ^{[9
]}

Xu, Xiaoying ^{[10
]}

Schneider, Donald P. ^{[11
,12
]}

Skibba, Ramin ^{[10
]}

Verde, Licia ^{[13
,14
]}

Nichol, Robert C. ^{[7
]}

Bizyaev, Dmitry ^{[15
]}

Brewington, Howard ^{[15
]}

Brinkmann, J. ^{[15
]}

Nicolaci da Costa, Luiz Alberto ^{[16
,17
]}

Gott, J. Richard, III ^{[18
]}

Malanushenko, Elena ^{[15
]}

Malanushenko, Viktor ^{[15
]}

Oravetz, Dan ^{[15
]}

Palanque-Delabrouille, Nathalie ^{[19
]}

Pan, Kaike ^{[15
]}

Prada, Francisco ^{[20
]}

Ross, Nicholas P. ^{[3
]}

Simmons, Audrey ^{[15
]}

de Simoni, Fernando ^{[16
,17
,21
]}

Shelden, Alaina ^{[15
]}

Snedden, Stephanie ^{[15
]}

Zehavi, Idit ^{[22
]}

机构：

[1] Univ Calif Berkeley, LBL, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[4] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

[5] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[6] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06511 USA

[7] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England

[8] Inst Fis Corpuscular, Valencia, Spain

[9] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[10] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[11] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA

[12] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[13] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain

[14] Univ Barcelona, IEEC, Inst Ciencies Cosmos, E-08028 Barcelona, Spain

[15] Apache Point Observ, Sunspot, NM 88349 USA

[16] LIneA, Lab Interinst E Astron, BR-20921400 Rio De Janeiro, RJ, Brazil

[17] Observ Nacl, BR-20921400 Rio De Janeiro, RJ, Brazil

[18] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[19] CEA, Ctr Saclay, IRFU, F-91191 Gif Sur Yvette, France

[20] CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain

[21] Univ Fed Fluminense, PURO, Dept Fis & Matemat, BR-28890000 Rio Das Ostras, RJ, Brazil

[22] Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA

来源：

ASTROPHYSICAL JOURNAL | 2012年 / 761卷 / 01期

基金：

美国国家科学基金会;

关键词：

distance scale; cosmological parameters; cosmology: observations; large-scale structure of universe; DIGITAL SKY SURVEY; MICROWAVE BACKGROUND ANISOTROPIES; SYNOPTIC SURVEY TELESCOPE; PROBING DARK ENERGY; RED GALAXIES; DATA RELEASE; BARYON OSCILLATIONS; PERTURBATION-THEORY; 1ST DATA; MATTER;

D O I：

10.1088/0004-637X/761/1/13

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We measure the acoustic scale from the angular power spectra of the Sloan Digital Sky Survey III (SDSS-III) Data Release 8 imaging catalog that includes 872, 921 galaxies over similar to 10,000 deg(2) between 0.45 < z < 0.65. The extensive spectroscopic training set of the Baryon Oscillation Spectroscopic Survey luminous galaxies allows precise estimates of the true redshift distributions of galaxies in our imaging catalog. Utilizing the redshift distribution information, we build templates and fit to the power spectra of the data, which are measured in our companion paper, to derive the location of Baryon acoustic oscillations (BAOs) while marginalizing over many free parameters to exclude nearly all of the non-BAO signal. We derive the ratio of the angular diameter distance to the sound horizon scale D-A(z)/r(s) = 9.212(-0.404)(+0.416) at z = 0.54, and therefore D-A(z) = 1411 +/- 65 Mpc at z = 0.54; the result is fairly independent of assumptions on the underlying cosmology. Our measurement of angular diameter distance D-A(z) is 1.4 sigma higher than what is expected for the concordance Lambda CDM, in accordance to the trend of other spectroscopic BAO measurements for z greater than or similar to 0.35. We report constraints on cosmological parameters from our measurement in combination with the WMAP7 data and the previous spectroscopic BAO measurements of SDSS and WiggleZ. We refer to our companion papers (Ho et al.; de Putter et al.) for investigations on information of the full power spectrum.

引用

页数：16

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