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Published May 20, 2012 | Published
Journal Article Open

A Search for Hydroxylamine (NH_2OH) toward Select Astronomical Sources

Abstract

Observations of 14 rotational transitions of hydroxylamine (NH_2OH) using the NRAO 12 m telescope on Kitt Peak are reported toward IRC+10216, Orion KL, Orion S, Sgr B2(N), Sgr B2(OH), W3IRS5, and W51M. Although recent models suggest the presence of NH_2OH in high abundance, these observations resulted in non-detection. Upper limits are calculated to be as much as six orders of magnitude lower than those predicted by models. Possible explanations for the lower-than-expected abundance are explored.

Additional Information

© 2012 The American Astronomical Society. Received 2011 November 15; accepted 2012 February 3; published 2012 April 27. B.A.M. gratefully acknowledges G. A. Blake for his support, as well as funding by an NSF Graduate Research Fellowship.We also thank the anonymous reviewer for the valuable comments and suggestions to improve the quality of the paper.

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August 22, 2023
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