SIMBAD references

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

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

Simbad objects: 9

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