1996A&A...315L.345D

Query : 1996A&A...315L.345D

1996A&A...315L.345D - Astronomy and Astrophysics, volume 315L345-348 (1996/11-2)

SWS observations of solid CO2 in molecular clouds.

DE GRAAUW T., WHITTET D.C.B., GERAKINES P.A., BAUER O.H., BEINTEMA D.A., BOOGERT A.C.A., BOXHOORN D.R., CHIAR J.E., EHRENFREUND P., FEUCHTGRUBER H., HELMICH F.P., HERAS A.M., HUYGEN R., KESTER D.J.M., KUNZE D., LAHUIS F., LEECH K.J., LUTZ D., MORRIS P.W., PRUSTI T., ROELFSEMA P.R., SALAMA A., SCHAEIDT S.G., SCHUTTE W.A., SPOON H.W.W., TIELENS A.G.G.M., VALENTIJN E.A., VANDENBUSSCHE B., VAN DISHOECK E.F., WESSELIUS P.R., WIEPRECHT E. and WRIGHT C.M.

Abstract (from CDS):

We report absorption features of solid CO2 stretching and bending modes in several lines of sight, including embedded young stellar objects and the Galactic Center source Sgr A*. The overall CO2 abundance in ices is ∼15% relative to H2O. Profile shapes are consistent with the presence of grain mantles with distinct polar (H2O-rich) and nonpolar (CO or CO2-rich) layers. In addition to the normal isotopic form, we report detection of the stretching mode of 13CO2; the 12C/13C ratio is consistent with terrestrial and interstellar values.

Abstract Copyright: ∼

Journal keyword(s): ISM: molecules - dust, extinction - infrared: interstellar: lines - stars: pre-main sequence - Galaxy: center

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 RAFGL 4176 Y*O 13 43 01.70352 -62 08 51.2304           ~ 163 0
2 [GGB2012] G308.9176+00.1231 HII 13 43 02.1 -62 08 52           ~ 59 0
3 GCIRS 12 IR 17 45 39.6 -29 00 35           ~ 29 0
4 GCIRS 3 * 17 45 39.80 -29 00 23.9           ~ 154 0
5 GCIRS 7 LP* 17 45 39.987 -29 00 22.24           M2 388 0
6 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
7 RAFGL 2136 Y*O 18 22 26.52888 -13 30 14.0400           ~ 300 0
8 RAFGL 2591 Y*O 20 29 24.8230 +40 11 19.590           ~ 640 0
9 IRAS 23118+6110 Y*O 23 14 02.09473 +61 27 18.8460           ~ 385 0

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