UV-VIS absorption spectroscopy of jet-cooled PAHs

Details UV-VIS absorption spectroscopy of jet-cooled PAHs UV-VIS absorption spectroscopy of jet-cooled PAHs

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007msl..confe..57r&link_type=abstract

"Molecules in Space and Laboratory, meeting held in Paris, France, May 14-18, 2007. Editors: J.L. Lemaire, F. Combes. ISBN: 9782

Astronomy and Astrophysics

Astrophysics

Laboratory

Scientific paper

We use cavity ring-down laser absorption spectroscopy to probe supersonic expansions of rare gases seeded with PAHs. The principal means of transferring solid PAH samples to the gas phase is heating, which we have applied to study rather light PAHs like anthracene (C14H10), but also the larger benzo[g,h,i]perylene (C22H12). As heating is expected to become less effective for vaporizing increasingly larger PAHs, laser vaporization is being explored for this purpose. Results are discussed within the framework of the search for carriers of diffuse interstellar bands.

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