Cosmological parameters from pre-planck cosmic microwave background measurements

被引：66

作者：

Calabrese, Erminia ^{[1
]}

Hlozek, Renee E. A. ^{[2
]}

Battaglia, Nick ^{[3
]}

Battistelli, Elia S. ^{[4
]}

Bond, J. Richard ^{[5
]}

Chluba, Jens ^{[6
]}

Crichton, Devin ^{[6
]}

Das, Sudeep ^{[7
,8
,9
]}

Devlin, Mark J. ^{[10
]}

Dunkley, Joanna ^{[1
]}

Duenner, Rolando ^{[11
]}

Farhang, Marzieh ^{[5
,12
]}

Gralla, Megan B. ^{[6
]}

Hajian, Amir ^{[5
]}

Halpern, Mark ^{[13
]}

Hasselfield, Matthew ^{[2
,13
]}

Hincks, Adam D. ^{[5
]}

Irwin, Kent D. ^{[14
]}

Kosowsky, Arthur ^{[15
]}

Louis, Thibaut ^{[1
]}

Marriage, Tobias A. ^{[2
,6
,16
]}

Moodley, Kavilan ^{[17
]}

Newburgh, Laura ^{[16
]}

Niemack, Michael D. ^{[14
,16
,18
]}

Nolta, Michael R. ^{[5
]}

Page, Lyman A. ^{[16
]}

Sehgal, Neelima ^{[19
]}

Sherwin, Blake D. ^{[16
]}

Sievers, Jonathan L. ^{[16
]}

Sifon, Cristobal ^{[20
]}

Spergel, David N. ^{[2
]}

Staggs, Suzanne T. ^{[16
]}

Switzer, Eric R. ^{[5
]}

Wollack, Edward J. ^{[21
]}

机构：

[1] Univ Oxford, Sub Dept Astrophys, Oxford OX1 3RH, England

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

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

[4] Univ Rome Sapienza, Dept Phys, I-00185 Rome, Italy

[5] Univ Toronto, CITA, Toronto, ON M5S 3H8, Canada

[6] Johns Hopkins Univ, Baltimore, MD 21218 USA

[7] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[8] Univ Calif Berkeley, BCCP, LBL, Berkeley, CA 94720 USA

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

[10] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[11] Pontificia Univ Catolica Chile, Dept Astron & Astrofis, Santiago 22, Chile

[12] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada

[13] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada

[14] NIST, Quantum Devices Grp, Boulder, CO 80305 USA

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

[16] Princeton Univ, Joseph Henry Labs Phys, Princeton, NJ 08544 USA

[17] Univ KwaZulu Natal, Sch Math Sci, Astrophys & Cosmol Res Unit, ZA-4041 Durban, South Africa

[18] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA

[19] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[20] Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands

[21] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 10期

基金：

加拿大创新基金会; 美国国家科学基金会;

关键词：

CONSTRAINTS;

D O I：

10.1103/PhysRevD.87.103012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent data from the WMAP, ACT and SPT experiments provide precise measurements of the cosmic microwave background temperature power spectrum over a wide range of angular scales. The combination of these observations is well fit by the standard, spatially flat Lambda CDM cosmological model, constraining six free parameters to within a few percent. The scalar spectral index, n(s) = 0.9690 +/- 0.0089, is less than unity at the 3.5 sigma level, consistent with simple models of inflation. The damping tail of the power spectrum at high resolution, combined with the amplitude of gravitational lensing measured by ACT and SPT, constrains the effective number of relativistic species to be N-eff = 3.28 +/- 0.40, in agreement with the standard model's three species of light neutrinos.

引用

页数：5

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