CN rotational excitation

Details CN rotational excitation CN rotational excitation

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...398...53p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 398, no. 1, p. 53-61.

Astronomy and Astrophysics

Astrophysics

21

Cyano Compounds, Interstellar Matter, Molecular Excitation, Molecular Rotation, Relic Radiation, Absorption Spectra, Astronomical Spectroscopy, Electron Scattering

Scientific paper

We report the results of a search for new lines of sight in which to study the CN excitation and a statistical analysis of all the excitation temperatures measured using interstellar CN. This data set strongly confirms that the cosmic background radiation (CBR) is the dominant contributor to the excitation of CN, and demonstrates the homogeneity of the CBR. Thirty-five observations is a sufficiently large sample to look for the presence of systematic effects in the CN excitation. The weighted average of the CN excitation temperatures exceeds the T(CBR) obtained by COBE and the Canadian rocket by 82 +/- 30 mK. With the aim of looking at the origin of this difference, we have considered in detail the known mechanisms that could contribute to exciting the CN molecule. None of the data necessary to quantify these mechanisms are of sufficient quality to provide a clean explanation of the observed difference.

Affiliated with

Also associated with

No associations

Rating

CN rotational excitation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with CN rotational excitation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CN rotational excitation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1869575