An Attempt to Measure the Far Infrared Spectrum of the Cosmic Background Radiation

1974 ◽  
Vol 52 (6) ◽  
pp. 554-561 ◽  
Author(s):  
H. P. Gush
Keyword(s):  
Infrared Spectrum ◽  
Liquid Helium ◽  
Background Radiation ◽  
Far Infrared ◽  
Cosmic Background Radiation ◽  
Black Brant ◽  
The Earth ◽  
Cosmic Background

A liquid helium cooled two-beam far infrared interferometer has been successfully flown in a Black Brant III B rocket. The detector was a germanium bolometer cooled to a temperature of 0.37 K by a liquid He3 refrigerator. The sensitive range was between approximately 5 and 50 cm−1. Satisfactory cosmic spectra were not obtained because of contamination by radiation from the earth.

scholarly journals Cosmic Background Radiation Anisotropies in the Far Infrared

1990 ◽  
Vol 139 ◽  
pp. 400-401
Author(s):  
P. de Bernardis ◽  
M. De Petris ◽  
M. Epifani ◽  
M. Gervasi ◽  
G. Guarini ◽  
...  
Keyword(s):  
Background Radiation ◽  
Order Approximation ◽  
Far Infrared ◽  
Constant Term ◽  
Cosmic Background Radiation ◽  
Spectral Distortion ◽  
The Earth ◽  
Cosmic Background ◽  
Image Position ◽  
Quadrupole Term

The motion of the earth with respect to the distant matter frame produces a spectral distortion in the observed background radiation given by 1The second-order approximation in β gives (de Bernardis et al., 1989) 2 where α≅(dlnI/dln v) = (v/I)(dI/dv). The first term in cosθ of equation (2) is the usual dipole anisotropy, the second constant term is the equivalent of the transverse Doppler effect in special relativity, and the third term is the quadrupole anisotropy. It is interesting to note that the quadrupole term is zero in the Rayleigh-Jeans region of the blackbody spectrum: Q ≈ 1/2(3–α)(2–α)β2cos2θ.

Cosmic Background Radiation Anisotropies in the Far Infrared

1990 ◽  
pp. 400-401
Author(s):  
P. de Bernardis ◽  
M. De Petris ◽  
M. Epifani ◽  
M. Gervasi ◽  
G. Guarini ◽  
...  
Keyword(s):  
Background Radiation ◽  
Far Infrared ◽  
Cosmic Background Radiation ◽  
Cosmic Background

scholarly journals Observation and Interpretation of the Cosmic Microwave Background Spectrum

1992 ◽  
Vol 9 ◽  
pp. 275-279 ◽  
Author(s):  
J. C. Mather
Keyword(s):  
Cosmic Microwave Background ◽  
Background Radiation ◽  
Far Infrared ◽  
Cosmic Background Radiation ◽  
Microwave Measurements ◽  
Microwave Background ◽  
Background Spectrum ◽  
Cosmic Background

AbstractRecent precise observations of the microwave and submillimeter cosmic background radiation are summarized, including rocket experiments, the FIRAS (Far InfraRed Absolute Spectrophotometer) on the COBE, CN results, and microwave measurements. Theoretical implications are summarized.

scholarly journals On the Large-Scale Anisotropy of the Cosmic Background Radiation in the Far Infrared

1983 ◽  
Vol 104 ◽  
pp. 139-141
Author(s):  
P. Boynton ◽  
C. Ceccarelli ◽  
P. de Bernardis ◽  
S. Masi ◽  
B. Melchiorri ◽  
...  
Keyword(s):  
Large Scale ◽  
Background Radiation ◽  
Far Infrared ◽  
Cosmic Background Radiation ◽  
Infrared Observations ◽  
Preliminary Results ◽  
Wavelength Channel ◽  
Cosmic Background

We report preliminary results relative to a balloon-borne search for the large-scale anisotropy carried out in 1980 by means of two far infrared photometers centered at 400 and 1100 microns. While these results are consistent with those obtained in an earlier flight, the second, shorter wavelength channel included in the 1980 work provides interesting insights into the influence of galactic dust on such far infrared observations.

On the Large-Scale Anisotropy of the Cosmic Background Radiation in the Far Infrared

1983 ◽  
pp. 139-141
Author(s):  
P. Boynton ◽  
C. Ceccarelli ◽  
P. de Bernardis ◽  
S. Masi ◽  
B. Melchiorri ◽  
...  
Keyword(s):  
Large Scale ◽  
Background Radiation ◽  
Far Infrared ◽  
Cosmic Background Radiation ◽  
Cosmic Background

scholarly journals Introductory Remarks

2001 ◽  
Vol 204 ◽  
pp. 5-15
Author(s):  
P. J. E. Peebles
Keyword(s):  
Star Formation ◽  
Background Radiation ◽  
Cosmic Background Radiation ◽  
Morphological Type ◽  
Star Formation History ◽  
Cosmic Background ◽  
Formation History ◽  
Infrared Background

I review the assumptions and observations that motivate the concept of the extragalactic cosmic background radiation, and the issues of energy accounts and star formation history as a function of galaxy morphological type that figure in the interpretation of the measurements of the extragalactic infrared background.

South Pole studies of the anisotropy of the cosmic background radiation at one degree

1990 ◽  
Author(s):  
Peter R. Meinhold ◽  
Philip M. Lubin ◽  
Alfredo O. Chingcuanco ◽  
Jeff A. Schuster ◽  
Michael Seiffert
Keyword(s):  
Background Radiation ◽  
Cosmic Background Radiation ◽  
South Pole ◽  
Cosmic Background
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