A PRELIMINARY MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND SPECTRUM BY THE COSMIC-BACKGROUND-EXPLORER (COBE) SATELLITE

被引：521

作者：

MATHER, JC

CHENG, ES

EPLEE, RE

ISAACMAN, RB

MEYER, SS

SHAFER, RA

WEISS, R

WRIGHT, EL

BENNETT, CL

BOGGESS, NW

DWEK, E

GULKIS, S

HAUSER, MG

JANSSEN, M

KELSALL, T

LUBIN, PM

MOSELEY, SH

MURDOCK, TL

SILVERBERG, RF

SMOOT, GF

WILKINSON, DT

机构：

[1] MIT, DEPT PHYS, CAMBRIDGE, MA 02139 USA

[2] UNIV CALIF LOS ANGELES, DEPT ASTRON, LOS ANGELES, CA 90024 USA

[3] CALTECH, JET PROP LAB, PASADENA, CA 91109 USA

[4] UNIV CALIF SANTA BARBARA, DEPT PHYS, SANTA BARBARA, CA 93106 USA

[5] GEN SCI CORP, LANDOVER, MD USA

[6] PRINCETON UNIV, PRINCETON, NJ 08544 USA

[7] GEN RES CORP, DANVERS, MA USA

[8] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 354卷 / 02期

关键词：

Cosmic background radiation;

D O I：

10.1086/185717

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a preliminary spectrum of the background radiation between 1 and 20 cm-1 (1 cm to 0.5 mm wavelength) from regions near the north Galactic pole, as observed by the FIRAS instrument on the COBE satellite. The spectral resolution is 1 cm-1. The spectrum is well fitted by a blackbody with a temperature of 2.735 ± 0.06 K, and the deviation from a blackbody is less than 1% of the peak intensity over the range 1-20 cm-1. These new data show no evidence for the submillimeter excess previously reported by Matsumoto et al. in 1988 in the cosmic microwave background. Further analysis and additional data are expected to improve the sensitivity to deviations from a blackbody spectrum by an order of magnitude.

引用

页码：L37 / L40

页数：4

共 30 条

[1] SPECTRUM AND ANISOTROPY OF THE COSMIC INFRARED BACKGROUND [J].