H3+ at the interface between astrochemistry and astroparticle physics
Artikel i vetenskaplig tidskrift, 2012
The H3+ molecular ion has been used by Oka and collaborators to trace the rate of ionization by cosmic rays in the interstellar medium. More energetic cosmic rays also produce diffuse γ-radiation. Now that several supernova remnants (SNRs) have been identified as γ-ray sources, it is possible to use spectroscopy of molecular ions to search for enhanced ionization rates that would pinpoint the SNRs as the accelerators of cosmic rays. It is proposed that the warm, dilute molecular gas revealed by Graphic absorption in the central molecular zone of the Galaxy can also be investigated via radio recombination lines of atoms and possibly triatomic hydrogen.
interstellar matter
astrophysics
astrochemistry
molecular physics
Författare
John H Black
Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
1364-503X (ISSN) 1471-2962 (eISSN)
Vol. 370 1978 5130-5141Ämneskategorier
Astronomi, astrofysik och kosmologi
Atom- och molekylfysik och optik
Fundament
Grundläggande vetenskaper
Infrastruktur
Onsala rymdobservatorium
DOI
10.1098/rsta.2012.0142