The angular power spectrum of galaxies from early Sloan Digital Sky Survey Data

被引：73

作者：

Tegmark, M

Dodelson, S

Eisenstein, DJ

Narayanan, V

Scoccimarro, R

Scranton, R

Strauss, MA

Connolly, A

Frieman, JA

Gunn, JE

Hui, L

Jain, B

Johnston, D

Kent, S

Loveday, J

Nichol, RC

O'Connell, L

Sheth, RK

Stebbins, A

Szalay, AS

Szapudi, I

Vogeley, MS

Zehavi, I

Annis, J

Bahcall, NA

Brinkmann, J

Csabai, I

Doi, M

Fukugita, M

Hennessy, G

Ivezíc, Z

Knapp, GR

Lamb, DQ

Lee, BC

Lupton, RH

McKay, TA

Kunszt, P

Munn, JA

Peoples, J

Pier, JR

Richmond, M

Rockosi, C

Schlegel, D

Stoughton, C

Tucker, DL

Yanny, B

York, DG

机构：

[1] Univ Penn, Dept Phys, Philadelphia, PA 19101 USA

[2] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[3] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[4] Univ Arizona, Dept Astron, Tucson, AZ 85721 USA

[5] Princeton Univ Observ, Princeton, NJ 08544 USA

[6] NYU, Dept Phys, New York, NY 10003 USA

[7] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA

[8] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[9] Columbia Univ, Dept Phys, New York, NY 10027 USA

[10] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[11] Univ Sussex, Sussex Astron Ctr, Brighton BN1 9QJ, E Sussex, England

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

[13] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[14] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA

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

[16] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

[17] USN Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA

[18] Univ Michigan, Dept Phys, Randall Lab 2477, Ann Arbor, MI 48109 USA

[19] Rochester Inst Technol, Dept Phys, Rochester, NY 14623 USA

[20] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 571卷 / 01期

基金：

美国国家科学基金会;

关键词：

galaxies : statistics; large-scale structure of universe; methods : data analysis;

D O I：

10.1086/339894

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute the angular power spectrum C-l from 1.5 million galaxies in early Sloan Digital Sky Survey (SDSS) data on large angular scales, l less than or similar to 600. The data set covers about 160 deg(2), with a characteristic depth on the order of 1 h(-1) Gpc in the faintest (21 < r* < 22) of our four magnitude bins. Cosmological interpretations of these results are presented in a companion paper by Dodelson and coworkers. The data in all four magnitude bins are consistent with a simple at concordance model with nonlinear evolution and linear bias factors on the order of unity. Nonlinear evolution is particularly evident for the brightest galaxies. A series of tests suggests that systematic errors related to seeing, reddening, etc. are negligible, which bodes well for the 60-fold larger sample that the SDSS is currently collecting. Uncorrelated error bars and well-behaved window functions make our measurements a convenient starting point for cosmological model fitting.

引用

页码：191 / 205

页数：15

共 49 条

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