J
J. M. Greenberg
Researcher at Leiden University
Publications - 3
Citations - 309
J. M. Greenberg is an academic researcher from Leiden University. The author has contributed to research in topics: Cosmic dust & Meteorite. The author has an hindex of 2, co-authored 3 publications receiving 301 citations.
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Comet Halley as an aggregate of interstellar dust and further evidence for the photochemical formation of organics in the interstellar medium
R. Briggs,Gözen Ertem,James P. Ferris,J. M. Greenberg,P. J. McCain,C. X. Mendoza-Gomez,W. A. Schutte,W. A. Schutte +7 more
TL;DR: Analysis 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 and the detection of C2–C3 hydroxy acids and hydroxy amides, glycerol, urea, glycine, hexamethylene tetramine, formamidine and ethanolamine.
Journal ArticleDOI
Photochemical reactions in interstellar grains photolysis of CO, NH3, and H2O.
Vipin Agarwal,W. A. Schutte,J. M. Greenberg,James P. Ferris,R. Briggs,Steven Connor,C. P. E. M. Van de Bult,F. Baas +7 more
TL;DR: 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.
Journal ArticleDOI
Photochemical reactions on interstellar grains
James P. Ferris,P. J. McCain,C. X. Mendoza-Gomez,Robert G. Briggs,W. A. Schutte,J. M. Greenberg,Gözen Ertem +6 more
TL;DR: A typical grain consists of a silicate core and a mantle, and if the grain is present in a diffuse cloud of interstellar gas, the mantle consists of relatively nonvolatile higher molecular weight organic compounds.