Submillimeter spectrum of the cosmic background radiation

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166403· OSTI ID:6832869

Matsumoto, T; Hayakawa, S; Matsuo, H; Murakami, H; Sato, S

The diffuse brightness of the sky has been measured in six submillimeter passbands, using a rocket-borne, liquid helium-cooled, absolute radiometer. The flux measured at 1160 microns is in good agreement with the average of longer wavelength measurements of the temperature of the cosmic background radiation. The fluxes measured at 709 microns and 481 microns show a rapid decrease toward shorter wavelength, but correspond to significantly higher temperatures. No local source of this excess flux has been identified. The spectrum of the excess significantly constrains cosmological models. Data at 262, 137, and 102 microns are consistent with emission from interstellar dust. 22 references.

• Research Organization: Nagoya Univ. (Japan)
• OSTI ID: 6832869
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 329; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND RADIATION
CONSTRAINTS
COSMIC DUST
COSMOLOGICAL MODELS
DUSTS
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
INFRARED SPECTRA
INTERSTELLAR SPACE
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MICROWAVE RADIATION
RADIATION DETECTORS
RADIATIONS
RADIOMETERS
RELICT RADIATION
SPACE
SPECTRA