ANISOTROPY MEASUREMENTS OF THE COSMIC MICROWAVE BACKGROUND-RADIATION AT INTERMEDIATE ANGULAR SCALES

被引：52
|
作者：
WATSON, RA
DELACRUZ, CMG
DAVIES, RD
LASENBY, AN
REBOLO, R
BECKMAN, JE
HANCOCK, S
机构：
[1] INST ASTROFIS CANARIAS, E-38071 LA LAGUNA, SPAIN
[2] MULLARD RADIO ASTRON OBSERV, CAVENDISH LAB, CAMBRIDGE CB3 0HE, ENGLAND
来源：
NATURE | 1992年 / 357卷 / 6380期
关键词：
D O I：
10.1038/357660a0
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Galaxy formation by gravitational instability implies the presence of temperature fluctuations in the cosmic microwave background. New observations at 10.45 and 14.9 GHz from the Observatorio del Teide in Tenerife on angular scales of several degrees reveal structure of galactic origin at the lower frequency, while at the upper frequency the magnitude of fluctuations of cosmological origin must be less than 1.8 x 10(-5) on a scale of 5-degrees. This strongly constrains models of galaxy formation, and is compatible with the recently announced discovery by the COBE satellite of fluctuations on larger angular scales.
引用
收藏
页码：660 / 665
页数：6
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