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Sub-Millimetre Observations Of SiCC in IRC 10216
Published online by Cambridge University Press: 07 August 2017
Abstract
We have used the James Clerk Maxwell Telescope to observe 11 lines of SiCC with excitation energies up to 330 K above the ground state in IRC 10216. An excitation analysis indicates Trot = 43 ± 5 K within a given Ka ladder and Texc = 160 ± 50 K between Ka ladders. The column density of SiCC is estimated to be 3 × 1015 cm−2, more than an order of magnitude higher than previous estimates.
- Type
- Near Stellar Environments
- Information
- Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 399 - 400
- Copyright
- Copyright © Kluwer 1992