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  1. No Access

    Chapter and Conference Paper

    UV Irradiation of Small Carbon Grains

    We present preliminary results of an experiment aimed at simulating the UV processing of hydrogenated amorphous carbon grains occurring in the interstellar medium. UV exposure of these grains induces significa...

    V. Mennella, L. Colangeli, P. Palumbo… in The Role of Dust in the Formation of Stars (1996)

  2. Article

    Comet Halley as an aggregate of interstellar dust and further evidence for the photochemical formation of organics in the interstellar medium

    Photolysis of mixtures of CO:NH3:H2O at 12 K results in the formation of an organic residue which is not volatile in high vacuum at room temperature. Analysis of this fraction by GC-MS resulted in the detection o...

    R. Briggs, G. Ertem, J. P. Ferris… in Origins of life and evolution of the biosp… (1992)

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  3. Article

    Photochemical reactions on interstellar grains

    James P. Ferris, P. J. McCain… in Origins of life and evolution of the biosp… (1989)

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  4. No Access

    Chapter and Conference Paper

    Formation of Organic Molecules on Interstellar Dust Particles

    The 3.4 um absorption feature in the spectrum of several infrared sources (Wickramasinghe and Allen, 1981; Willner and Pipher, 1982) indicates the presence of organic molecules in the interstellar medium. Seve...

    W. Schutte, J. Mayo Greenberg in Light on Dark Matter (1986)

  5. Article

    Photochemical reactions in interstellar grains photolysis of co, NH3, and H2O

    A simulation of the organic layer accreted onto interstellar dust particles was prepared by slow deposition of a CO:NH3:H2O gas mixture on an Al block at 10K, with concomitant irradiation with vacuum UV. The resi...

    V. K. Agarwal, W. Schutte, J. M. Greenberg… in Origins of life and evolution of the biosp… (1985)

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  6. No Access

    Chapter and Conference Paper

    The Infrared Characteristics of Circumstellar Silicate Grains

    We have made a theoretical study of the infrared emission from circumstellar shells around late-type giants, with the aim of deriving the infrared characteristics of the silicate grains condensing in these she...

    W. Schutte, A. G. G. M. Tielens in Mass Loss from Red Giants (1985)