The rotational emission-line spectrum of Orion A between 247 and 263 GHz

Details The rotational emission-line spectrum of Orion A between 247 and 263 GHz The rotational emission-line spectrum of Orion A between 247 and 263 GHz

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apjs...60..357b&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 60, Jan. 1986, p. 357-374.

Astronomy and Astrophysics

Astronomy

115

Astronomical Spectroscopy, Emission Spectra, Interstellar Matter, Molecular Clouds, Orion Nebula, Rotational Spectra, Infrared Astronomy, Line Spectra, Millimeter Waves, Positive Ions

Scientific paper

Results are presented from a molecular line survey of the core of the Orion molecular cloud between 247 and 263 GHz. The spectrum contains a total of 243 resolvable lines from 23 different chemical species. When combined with the earlier survey of Orion from 215 to 247 GHz by Sutton et al. (1985), the complete data set includes over 780 emission features from 29 distinct molecules. Of the 23 molecules detected in this survey, only NO, CCH, and HCO(+) were not identified in the lower frequency data. As a result of the supporting laboratory spectroscopy performed to supplement existing millimeter-wave spectral line catalogs, only 33 of the more than 780 lines remain unidentified, of which 16 occur in the upper frequency band. A significant chance remains that a number of these unidentified lines are due to transitions between states of either isotopically substituted or highly excited abundant and complex molecules such as CH3OH, CH3OCH3, and HCOOCH3, whose rotational spectra are poorly known at present. The very small percentage and weak strength of the unidentified lines implies that the dominant chemical constituents visible at millimeter wavelengths have been identified in the Orion molecular cloud.

Affiliated with

Also associated with

No associations

Rating

The rotational emission-line spectrum of Orion A between 247 and 263 GHz 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 The rotational emission-line spectrum of Orion A between 247 and 263 GHz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The rotational emission-line spectrum of Orion A between 247 and 263 GHz will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1844779