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A λ = 1.3 Millimeter Aperture Synthesis Molecular Line Survey of Orion Kleinmann-Low

Blake, Geoffrey A. and Mundy, L. G. and Carlstrom, J. E. and Padin, S. and Scott, S. L. and Scoville, N. Z. and Woody, D. P. (1996) A λ = 1.3 Millimeter Aperture Synthesis Molecular Line Survey of Orion Kleinmann-Low. Astrophysical Journal Letters, 472 (1). L49-L52. ISSN 2041-8205. doi:10.1086/310347.

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We present a 1".3 spatial resolution interferometric spectral line survey of the core of the Orion molecular cloud, obtained with the OVRO millimeter array. Covering 4 GHz bandwidth in total, the survey contains ~100 emission lines from 18 chemical species. The spatial distributions of a number of molecules point to source I near the IRc2 complex as the dominant energy source in the region but do not rule out the presence of additional lower luminosity objects. At arcsecond resolution, the offsets between dust emission and various molecular tracers suggest that the spectacular "hot core" emission in the Orion core arises via the heating and ablation of material from the surfaces of very high density clumps located ≳500 AU from source I and traced by the dust emission. We find no evidence for a strong internal heating source within the hot core condensation(s).

Item Type:Article
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URLURL TypeDescription
Blake, Geoffrey A.0000-0003-0787-1610
Carlstrom, J. E.0000-0002-2044-7665
Scoville, N. Z.0000-0002-0438-3323
Additional Information:© 1996 American Astronomical Society. Received 1996 May 16; accepted 1996 September 6. Millimeter interferometry at OVRO is supported by the NSF, grant AST-9314079. G. A. B. would like to acknowledge additional support from NASA, grants NAGW-1955 and NAGW-2297, while L. G. M. acknowledges support from NSF grant AST-9314847 and NASA grant NAGW-3066. J. E. C. acknowledges support from the NSF-YI program and the David & Lucille Packard Foundation. L. G. M. and G. A. B. gladly thank Leiden Observatory for their hospitality during the course of this work.
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David and Lucile Packard FoundationUNSPECIFIED
Subject Keywords:ISM: individual (Orion Kleinmann-Low); radio lines: ISM; techniques: interferometric
Issue or Number:1
Record Number:CaltechAUTHORS:20120912-155108732
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Official Citation:A λ = 1.3 Millimeter Aperture Synthesis Molecular Line Survey of Orion Kleinmann-Low Geoffrey A. Blake et al. 1996 ApJ 472 L49
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34046
Deposited On:12 Sep 2012 23:22
Last Modified:09 Nov 2021 23:06

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