Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...134...36o&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 134, no. 1, May 1984, p. 36-44.
Astronomy and Astrophysics
Astrophysics
37
Abundance, Heavy Water, Interstellar Matter, Molecular Clouds, Orion Nebula, Emission Spectra, Line Spectra
Scientific paper
The author has detected HDO (110 - 111) emission towards regions of probable enhanced density (⪆106 cm-3) and temperature (⪆100K): the confined region in the 8 km s-1 ridge cloud, the hot core source, and the plateau source in Orion-KL, as well as a probable condensation in the W51M region. H2O column densities in excess of 1018 cm-2 are inferred using an estimated conservative upper limit of 10-3 to the [HDO]/[H2O]-ratio. In the plateau region of Orion-KL the author even suggests that the abundance of H2O approaches that of CO. No emission was observed towards the "normal" quiescent molecular gas of the 8 and 10 km s-1 ridge clouds in Orion. The author's conclusion is that, unless the density of the confined 8 km s-1 cloud is very high (⪆108 cm-3), the abundance of H2O is enhanced by an order of magnitude in this region compared to normal interstellar values.
No associations
LandOfFree
Deuterated water in Orion-KL and W51M 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 Deuterated water in Orion-KL and W51M, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deuterated water in Orion-KL and W51M will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1367374