Identification of features due to H3(+) in the infrared spectrum of supernova 1987A

Details Identification of features due to H3(+) in the infrared spectrum of supernova 1987A Identification of features due to H3(+) in the infrared spectrum of supernova 1987A

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.355..420m&link_type=abstract

Nature (ISSN 0028-0836), vol. 355, Jan. 30, 1992, p. 420-422. Research supported by NSF and SERC.

Physics

57

Hydrogen Ions, Infrared Spectroscopy, Interstellar Chemistry, Supernova 1987A, Line Spectra, Stellar Envelopes, Stellar Physics, Stellar Spectra

Scientific paper

Evidence is presented for the presence of H3(+) in the envelope of SN1987A, where it is produced by an unusual chemistry in which excited hydrogen of atoms are the main source of molecule formation. Infrared spectra of SN1987A in the first few hundred days after the explosion contain two previously unidentified peaks which are attributed to H3(+). Chemical modeling produces quantities of H3(+) consistent with the observed peak intensities and also predicts significant amounts of HeH(+), which may be responsible for some weaker features in the spectra.

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