2005A&A...432..559K


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.01CET22:08:02

2005A&A...432..559K - Astronomy and Astrophysics, volume 432, 559-566 (2005/3-3)

Infrared spectroscopic studies of hydrogenated silicon clusters. Guiding the search for Si2Hx species in the Circumstellar Envelope of IRC+10216.

KAISER R.I. and OSAMURA Y.

Abstract (from CDS):

Silicon-bearing species Si2Hx (x=1-6) are probable candidates in the circumstellar envelope of IRC+10216. We have observed several fundamentals of new silicon-containing radicals Si2H3 and Si2H5 in addition to the well-known Si2H4 and Si2H6 species from infrared spectroscopy in low temperature silane matrices at 10K. Several infrared bands identify the Si2Hx species and can be used to search for these molecules in the circumstellar envelope of IRC+10216. These infrared bands are confirmed by ab initio quantum chemical calculation as well as via corresponding infrared spectra detected for the deuterated species Si2Dx.

Abstract Copyright:

Journal keyword(s): molecular data - molecular processes - astrochemistry

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 44179 pA* 06 19 58.2185496 -10 38 14.706068 9.51 9.33 9.02     B9Ib/II 725 0
2 IRC +10216 C* 09 47 57.40632 +13 16 43.5648     10.96     C9,5e 2177 0
3 NAME Sgr A Region reg 17 45 12 -28 48.3           ~ 920 0
4 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 1979 1

    Equat.    Gal    SGal    Ecl

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