Sub-Millimetre Observations Of SiCC in IRC 10216

Autor: L.W. Avery, T. Amano, M.B. Bell, P.A. Feldman, J.W.C. Johns, J.M. Macleod, H.E. Matthews, D.C. Morton, J.K.G. Watson, B.E. Turner, S.S. Hayashi, G.D. Watt, A.S. Webster
Rok vydání: 1992
Zdroj: Symposium - International Astronomical Union. 150:399-400
ISSN: 0074-1809
DOI: 10.1017/s0074180900090471
Popis: 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.
Databáze: OpenAIRE