Rocket measurement of the cosmic-background-radiation mm-wave spectrum
Journal Article
·
· Physical Review Letters; (USA)
- Department of Physics, University of British Columbia, Vancouver, BC (CA)
We report here the most precise constraint to date on the spectrum of the cosmic background radiation (CBR), obtained from measurements made with a liquid-helium-cooled spectrometer carried above the atmosphere on a rocket. The spectrum is very well fitted by a Planck function of temperature {ital T}=2.736 K. The scatter of the equivalent temperature in the band 3--16 cm{sup {minus}1} is {plus minus}10 mK, about 1/3% of the mean whereas the estimated overall accuracy of the mean temperature is {plus minus}17 mK. These results are inconsistent with a previously reported excess IR intensity in the CBR but are in good agreement with COBE results.
- OSTI ID:
- 6517793
- Journal Information:
- Physical Review Letters; (USA), Vol. 65:5; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
The far infrared absolute spectrophotometer (FIRAS): Cosmic background spectrum, dipole and distortions
Measurement of the cosmic background radiation temperature at 3. 3 mm wavelength
Measurements of the anisotropy of the cosmic background radiation and diffuse galactic emission at millimeter and submillimeter wavelengths
Conference
·
Wed Jan 01 00:00:00 EST 1992
· American Astronomical Society, Bulletin; (United States)
·
OSTI ID:6517793
+6 more
Measurement of the cosmic background radiation temperature at 3. 3 mm wavelength
Thesis/Dissertation
·
Tue Jan 01 00:00:00 EST 1985
·
OSTI ID:6517793
Measurements of the anisotropy of the cosmic background radiation and diffuse galactic emission at millimeter and submillimeter wavelengths
Journal Article
·
Thu Sep 01 00:00:00 EDT 1988
· Astrophys. J.; (United States)
·
OSTI ID:6517793
+2 more