A measurement of the angular power spectrum of the cosmic microwave background from l=100 to 400

被引：372

作者：

Miller, AD

Caldwell, R

Devlin, MJ

Dorwart, WB

Herbig, T

Nolta, MR

Page, LA

Puchalla, J

Torbet, E

Tran, HT

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[2] Univ Penn, Dept Phys & Astron, David Rittenhouse Lab, Philadelphia, PA 19104 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 524卷 / 01期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

cosmic microwave background; cosmology : observations;

D O I：

10.1086/312293

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on a measurement of the angular spectrum of the cosmic microwave background (CMB) between l approximate to 100 and I approximate to 400 made at 144 GHz from Cerro Toco in the Chilean altiplano. When the new data are combined with previous data at 30 and 40 GHz taken with the same instrument observing the same section of sky, we find (1) a rise in the angular spectrum to a maximum with delta T-l approximate to 85 mu K at l approximate to 200 and a fall at I > 300, thereby localizing the peak near I approximate to 200, and (2) that the anisotropy at I approximate to 200 has the spectrum of the CMB.

引用

页码：L1 / L4

页数：4

共 33 条

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