Detection of anthracene in the UV spectrum of Comet 1P/Halley

Details Detection of anthracene in the UV spectrum of Comet 1P/Halley Detection of anthracene in the UV spectrum of Comet 1P/Halley

Nov 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sf2a.conf..423m&link_type=abstract

"SF2A-2008: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: C. Charbonnel, F. Combes

Astronomy and Astrophysics

Astrophysics

Scientific paper

Following the detection of three small PAHs, naphthalene, phenanthrene and pyrene in dust grains collected by the Stardust probe in the environment of Comet 81P/Wild 2, we reprocessed the UV spectra of Comet 1P/Halley recorded by the Vega-TKS spectrometer. The near-UV cometary spectra were compared with laboratory spectra of anthracene obtained under laser-induced fluorescence conditions. Four main peaks coincide at 362, 367.5, 373 and 382.5 nm. This shows that anthracene is present in the innermost coma of Comet 1P/Halley and comes in addition to the previous detection of phenanthrene and pyrene.

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