Aperture synthesis maps of HDO emission in Orion-KL
Journal Article
·
· Astrophys. J.; (United States)
In order to improve understanding of the special circumstances which lead to strong HDO emission from the Kleinmann-Low nebula in Orion, the authors made aperture synthesis maps of the 1(10)-1(11) deuterated water transition line with an angular resolution of 3.4 arsec. The HDO/H2 abundance toward both the hot core and compact ridge regions of the nebula is inferred to be about about 10 to the -7th, unexpectedly high for such warm regions. This result suggests that most of the HDO in this region has been evaporated from dust grain mantles within the last 1000-10,000 years. 23 references.
- Research Organization:
- California Univ., Berkeley
- OSTI ID:
- 6174098
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 317; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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