Hard X-ray to low-energy gamma-ray spectrum of the Crab Nebula

Journal Article · Wed Mar 01 04:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167249· OSTI ID:6019008

Jung, G V

Data from the UCSD/MIT Hard X-ray and Low-Energy Gamma-Ray Experiment on the first High Energy Astronomy Observatory (HEAO 1) were used to determine the spectrum of the Crab Nebula in the 10 keV-5 MeV energy range. The spectral change in the 100 keV-1 MeV region is characterized. When the combined spectrum is fitted to a broken power-law model, the data require a description with the following distinct spectral indices: a power-law slope of 2.08 in the 1-100 keV region and a slope of about 2.5 above 150 keV. 27 references.

• Research Organization: California Univ., San Diego (USA); California Univ., San Diego (USA)
• OSTI ID: 6019008
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 338; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
BASIC INTERACTIONS
BREMSSTRAHLUNG
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
GAMMA SPECTRA
HARD X RADIATION
INTERACTIONS
IONIZING RADIATIONS
PULSARS
RADIATIONS
SPECTRA
SUPERNOVA REMNANTS
SYNCHROTRON RADIATION
WEAK INTERACTIONS
X RADIATION