High Rydberg state carbon recombination lines toward Cassiopeia A: 332 MHz VLA observations and comparison with H I and molecular lines

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1409

Title:	High Rydberg state carbon recombination lines toward Cassiopeia A: 332 MHz VLA observations and comparison with H I and molecular lines
Authors:	Anantharamaiah, K.R. Erickson, W.C. Payne, H.E. Kantharia, N.G.
Keywords:	ABUNDANCE CASSIOPEIA A H I REGIONS HYDROGEN INTERSTELLAR MATTER RADIO EMISSION RYDBERG SERIES ASTRONOMICAL MODELS COSMOLOGY NEUTRAL GASES RECOMBINATION REACTIONS SPECTRUM ANALYSIS VERY LARGE ARRAY (VLA)
Issue Date:	Aug-1994
Publisher:	The University of Chicago Press for the American Astronomical Society
Citation:	Astrophysical Journal, 1994, Vol.430, p682-689
Abstract:	We present observations of the C270 alpha carbon recombination line, 21 cm neutral hydrogen line and (12)CO (J = 1 right arrow 0) molecular line toward Cas A. A comparison of the distribution of recombination line optical depths over the face of Cas A with that of H I optical depths and molecular line emission favors the association of C270 alpha regions with H I rather than molecular clouds. The association makes it possible to self-consistently determine several physical parameters of the clouds by combining the recombination line and 21 cm H I measurements.
URI:	http://hdl.handle.net/2289/1409
ISSN:	0004-637X 1538-4357 (online)
Alternative Location:	http://adsabs.harvard.edu/cgi-bin/bib_query?1994ApJ...430..682A
Copyright:	(1994) by the American Astronomical Society. Scanned images provided by the NASA ADS Data System.
Appears in Collections:	Research Papers (A&A)

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