Kulczak-Jastrzębska, M. and Lis, D. and Gerin, M. (2012) A Comparison of c-C₃H₂ and l-C₃H₂ in the Spiral Arm Clouds. Acta Astronomica, 62 (3). pp. 313-321. ISSN 0001-5237. https://resolver.caltech.edu/CaltechAUTHORS:20200304-104110552
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Abstract
Using the IRAM 30-m telescope, we observed molecular absorption lines from c-C₃H₂ produced in diffuse clouds toward the high-mass star forming regions W51 e1/e2 and W49N to determine the abundance ratio between the cyclic and linear isomers of C₃H₂ (N_c/N_l). The abundance ratio is found to be 3-5 in the sources where l-C₃H₂ was previously detected. A possible source of uncertainty in the determination of N_c/N_l is related to the estimate of N(c-C₃H₂). The main goal of this paper is verification of this hypothesis.
Item Type: | Article | ||||||
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Additional Information: | © 2012 Copernicus Foundation for Polish Astronomy. Received August 29, 2012. | ||||||
Subject Keywords: | Radio lines: ISM - ISM: molecules - ISM: abundances | ||||||
Issue or Number: | 3 | ||||||
Record Number: | CaltechAUTHORS:20200304-104110552 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200304-104110552 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 101707 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 04 Mar 2020 19:03 | ||||||
Last Modified: | 04 Mar 2020 19:03 |
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