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Mass of hot, shocked CO in Orion: First observations of the J = 17. -->. J = 16 transition at 153 microns

Journal Article · · Astrophys. J., Lett. Ed.; (United States)
DOI:https://doi.org/10.1086/183804· OSTI ID:5099578
We have observed the Kleinmann-Low Nebula in Orion and detected the J = 17..-->..J = 16 transition of CO at a flux level of 7 x 10/sup -17/ W cm/sup -2/. Our best estimate for the total mass of hot, T> or approx. =750 K, carbon monoxide in the nebula is 8 x 10/sup 30/ g. From this value we assess the total hydrogen mass at this temperature to be approx.1.5 M/sub sun/. A puzzeling apparent deficit of oxygen in the nebula is discussed.
Research Organization:
Center for Radiophysics and Space Research, Cornell University
OSTI ID:
5099578
Journal Information:
Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 257:1; ISSN AJLEA
Country of Publication:
United States
Language:
English

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