skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: TRACING THE SOURCES OF COSMIC RAYS WITH MOLECULAR IONS

Abstract

The rate of ionization by cosmic rays (CRs) in interstellar gas directly associated with {gamma}-ray-emitting supernova remnants (SNRs) is for the first time calculated to be several orders of magnitude larger than the Galactic average. Analysis of ionization-induced chemistry yields the first quantitative prediction of the astrophysical H{sup +} {sub 2} emission line spectrum, which should be detectable together with H{sup +} {sub 3} lines. The predicted coincident observation of those emission lines and {gamma}-rays will help prove that SNRs are sources of CRs.

Authors:
;  [1]; ;  [2]
  1. Ruhr-Universitaet Bochum, Fakultaet fuer Physik and Astronomie, Theoretische Physik IV, D-44780 Bochum (Germany)
  2. Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala (Sweden)
Publication Date:
OSTI Identifier:
21565435
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal Letters
Additional Journal Information:
Journal Volume: 739; Journal Issue: 2; Other Information: DOI: 10.1088/2041-8205/739/2/L43; Journal ID: ISSN 2041-8205
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMIC RAY SOURCES; EMISSION; GAMMA RADIATION; HYDROGEN IONS 2 PLUS; HYDROGEN IONS 3 PLUS; IONIZATION; SUPERNOVA REMNANTS; CATIONS; CHARGED PARTICLES; COSMIC RADIO SOURCES; ELECTROMAGNETIC RADIATION; HYDROGEN IONS; IONIZING RADIATIONS; IONS; MOLECULAR IONS; RADIATIONS

Citation Formats

Becker, Julia K., Schuppan, Florian, Black, John H., and Mohammadtaher Safarzadeh, E-mail: julia@tp4.rub.de. TRACING THE SOURCES OF COSMIC RAYS WITH MOLECULAR IONS. United States: N. p., 2011. Web. doi:10.1088/2041-8205/739/2/L43.
Becker, Julia K., Schuppan, Florian, Black, John H., & Mohammadtaher Safarzadeh, E-mail: julia@tp4.rub.de. TRACING THE SOURCES OF COSMIC RAYS WITH MOLECULAR IONS. United States. doi:10.1088/2041-8205/739/2/L43.
Becker, Julia K., Schuppan, Florian, Black, John H., and Mohammadtaher Safarzadeh, E-mail: julia@tp4.rub.de. Sat . "TRACING THE SOURCES OF COSMIC RAYS WITH MOLECULAR IONS". United States. doi:10.1088/2041-8205/739/2/L43.
@article{osti_21565435,
title = {TRACING THE SOURCES OF COSMIC RAYS WITH MOLECULAR IONS},
author = {Becker, Julia K. and Schuppan, Florian and Black, John H. and Mohammadtaher Safarzadeh, E-mail: julia@tp4.rub.de},
abstractNote = {The rate of ionization by cosmic rays (CRs) in interstellar gas directly associated with {gamma}-ray-emitting supernova remnants (SNRs) is for the first time calculated to be several orders of magnitude larger than the Galactic average. Analysis of ionization-induced chemistry yields the first quantitative prediction of the astrophysical H{sup +} {sub 2} emission line spectrum, which should be detectable together with H{sup +} {sub 3} lines. The predicted coincident observation of those emission lines and {gamma}-rays will help prove that SNRs are sources of CRs.},
doi = {10.1088/2041-8205/739/2/L43},
journal = {Astrophysical Journal Letters},
issn = {2041-8205},
number = 2,
volume = 739,
place = {United States},
year = {2011},
month = {10}
}