Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...531l..71g&link_type=abstract
The Astrophysical Journal, Volume 531, Issue 1, pp. L71-L73.
Astronomy and Astrophysics
Astronomy
44
Ism: Dust, Extinction, Galaxy: Evolution, Ism: Molecules
Scientific paper
By co-depositing a gas mixture of simple carbon- and nitrogen-containing molecules with water on a 10 K surface and exposing it to ultraviolet radiation, we were able to form a residue. This residue was then placed aboard the EURECA satellite behind a magnesium fluoride window and exposed to solar radiation for 4 months before it was returned and analyzed. The resulting residue is believed to simulate the photoprocessing of organic dust mantles in the interstellar medium. Mass spectrometry indicated that the photoprocessing created a rich mixture of polycyclic aromatic hydrocarbons (PAHs) and other conjugated organic molecules, which may explain how PAHs are replenished in space.
de Groot Menno
Gillette Seb J.
Greenberg Mayo J.
Li Aigen
Mahajan Tania B.
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