Phillips, J. P. and White, Glenn J.
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We have observed seven galactic sources in the J=1→0 transition of 14CO and find 2σ upper limits for the ratio 14C/12C which are between 1.2 x 10-5 and 4.4 x 10-5 in five star-formation zones, and of order 10-4 and greater for the supernovae remnants S147 and IC443.
|Item Type:||Journal Article|
|Copyright Holders:||1983 Royal Astronomical Society|
|Keywords:||abundance; carbon monoxide; carbon 14; electron transitions; Milky Way galaxy; molecular clouds; supernova remnants; carbon 12|
|Academic Unit/Department:||Science > Physical Sciences|
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||G. J. White|
|Date Deposited:||07 Jun 2012 09:31|
|Last Modified:||17 Jul 2013 08:49|
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