Publication Abstracts

Thaddeus and Clauser 1966

Thaddeus, P., and J.F. Clauser, 1966: Cosmic microwave radiation at 2.63 mm from observations of interstellar CN. Phys. Rev. Lett., 16, no. 18, 819-822, doi:10.1103/PhysRevLett.16.819.

Considerable interest has recently been aroused by the suggestion by Dicke et al. that radiation emitted during a contracted stage of the universe may still exist in the form of quasithermal microwaves, and by the reported discovery of this radiation, first by Penzias and Wilson, and recently by Roll and Wilkinson. Penzias and Wilson find an equivalent brightness temperature of 3.5±1.0°K at a wavelength of 7.35 cm, while Roll and Wilkinson report 3.0±0.5°K at 3.2 cm. It is the purpose of this note (a) to show that in all likelihood the rotational temperature of the interstellar CN violet band, first estimated by McKellar over 25 years ago to be 2.3°K, constitutes a good measurement gf the cosmic noise at 2.63 mm if the CN exists in normal HI (nonionized) regions, but that in HII (ionized) regions collisions may substantially contribute to the rotational temperature; and (b) to report a new measurement of the CN temperature that we have made recently with the McMath solar telescope of the Kitt Peak National Observatory.

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BibTeX Citation

@article{th05200z,
  author={Thaddeus, P. and Clauser, J. F.},
  title={Cosmic microwave radiation at 2.63 mm from observations of interstellar CN},
  year={1966},
  journal={Physical Review Letters},
  volume={16},
  number={18},
  pages={819--822},
  doi={10.1103/PhysRevLett.16.819},
}

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RIS Citation

TY  - JOUR
ID  - th05200z
AU  - Thaddeus, P.
AU  - Clauser, J. F.
PY  - 1966
TI  - Cosmic microwave radiation at 2.63 mm from observations of interstellar CN
JA  - Phys. Rev. Lett.
JO  - Physical Review Letters
VL  - 16
IS  - 18
SP  - 819
EP  - 822
DO  - 10.1103/PhysRevLett.16.819
ER  -

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