OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

Very-high-energy gamma-ray signal from nuclear photodisintegration as a probe of extragalactic sources of ultrahigh-energy nuclei

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/48051

Show full item record

Files Size Format View
fac_MuraseK_PhysicalReviewD_2010_82_4.pdf 259.8Kb PDF View/Open

Title: Very-high-energy gamma-ray signal from nuclear photodisintegration as a probe of extragalactic sources of ultrahigh-energy nuclei
Creators: Murase, Kohta; Beacom, John F.
Issue Date: 2010-08-19
Publisher: American Physical Society
Citation: Kohta Murase, John F. Beacom, "Very-high-energy gamma-ray signal from nuclear photodisintegration as a probe of extragalactic sources of ultrahigh-energy nuclei," Physical Review D 82, no. 4 (2010), doi:10.1103/PhysRevD.82.043008
DOI: 10.1103/PhysRevD.82.043008
Abstract: It is crucial to identify the ultrahigh-energy cosmic-ray sources and probe their unknown properties. Recent results from the Pierre Auger Observatory favor a heavy nuclear composition for the ultrahigh-energy cosmic rays. Under the requirement that heavy nuclei survive in these sources, using gamma-ray bursts as an example, we predict a diagnostic gamma-ray signal, unique to nuclei—the emission of deexcitation gamma rays following photodisintegration. These gamma rays, boosted from MeV to TeV-PeV energies, may be detectable by gamma-ray telescopes such as VERITAS, HESS, and MAGIC, and especially the next-generation CTA and AGIS. They are a promising messenger to identify and study individual ultrahigh-energy nuclei accelerators.
ISSN: 1550-2368
URI: http://hdl.handle.net/1811/48051
Bookmark and Share