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Images of HCO(+) (1-0) emission in a molecular cloud near 1E 1740.7 - 2942

Phillips, J. A. and Lazio, T. Joseph W. (1995) Images of HCO(+) (1-0) emission in a molecular cloud near 1E 1740.7 - 2942. Astrophysical Journal, 442 (1). L37-L39. ISSN 0004-637X. doi:10.1086/187810.

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We have observed the hard X-ray source 1E 1740.7 - 2942 in the HCO(+) (1-0) line using the Owens Valley millimeter interferometer. Previous single-dish observations have found HCO(+) emission coincident with the location of the radio continuum hot spots of the radio source associated with 1E 1740.7 - 2942. Our higher resolution observations show a 15 sec offset between the HCO(+) emission and the location of the radio hot spots. We propose that the lack of emission results from a large ionization rate, exceeding 10-15/s, in the neighborhood of 1E 1740.7 - 2942.

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Lazio, T. Joseph W.0000-0002-3873-5497
Additional Information:© 1995 American Astronomical Society. Received 1994 October 25; accepted 1995 January 5. We thank Paul Goldsmith for helpful discussions. This work was supported by NSF grant AST 90-16404.
Group:Owens Valley Radio Observatory (OVRO)
Funding AgencyGrant Number
NSFAST 90-16404
Issue or Number:1
Record Number:CaltechAUTHORS:20160608-191041474
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67793
Deposited By: Joy Painter
Deposited On:09 Jun 2016 04:17
Last Modified:11 Nov 2021 03:54

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