The discovery of interstellar carbon dioxide

Details The discovery of interstellar carbon dioxide The discovery of interstellar carbon dioxide

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...223l...5d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 223, no. 1-2, Oct. 1989, p. L5-L8.

Astronomy and Astrophysics

Astronomy

94

Carbon Dioxide, Infrared Spectra, Interstellar Gas, Molecular Clouds, Absorption Spectra, Abundance, Astronomical Spectroscopy, Infrared Astronomy Satellite, Water

Scientific paper

The LRS instrument on board IRAS has provided good quality low resolution spectra of thousands of relatively bright and point like infrared sources. In the LRS spectra of 3 such sources, a strong absorption feature has been detected at 15.2 microns, the position of which coincides with the absorption expected from nu-2 bending mode of the CO2 molecule. This band appears together with a strong and very broad absorption band centered at 13.5 microns and which is attributed to the librational mode of the water molecule in ice. Laboratory data involving mixtures of H2O and CO2 ices provide a fit to the observed bands and make it possible to determine the quantity of these molecules along the line of sight to these objects. The CO2 molecule is thus detected for the first time in the interstellar medium, and its abundance is shown to be roughly equal to that of solid CO.

Affiliated with

Also associated with

No associations

Rating

The discovery of interstellar carbon dioxide 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 discovery of interstellar carbon dioxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The discovery of interstellar carbon dioxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1527026