Gamma-producing radioactivities from supernovae
Conference
·
· AIP Conf. Proc.; (United States)
OSTI ID:7068574
The production of three isotopes critical to astronomical ..gamma..-ray spectroscopy, /sup 44/Ti, /sup 56/Co, and /sup 57/Co, is briefly reviewed along with the information each contains. Emphasis is placed on SN 1987A, the only Type II supernova likely to be seen in ..gamma..-lines for decases to come. The 847 keV line from /sup 56/Co decay in this supernova should peak approximately 400 days after its explosion with a flux of about 1 x 10/sup -3/ cm/sup -2/ s/sup -1/. For comparison, the second best candidate, a Type Ia in the Virgo cluster (20 Mpc) gives a peak flux 100 times smaller than this 100 days after the explosion. /sup 57/Co decay in SN 1987A will also present a potentially detectable signal approx.1 x 10/sup -4/ cm/sup -2/ s/sup -1/ in 1989 through 1991. /sup 44/Ti, chiefly from Type I supernovae, is a wild card, but may be responsible for the diffuse pair background.
- Research Organization:
- Board of Studies in Astronomy and Astrophysics, Lick Observatory, University of California at Santa Cruz, Santa Cruz, CA 95064
- OSTI ID:
- 7068574
- Report Number(s):
- CONF-871245-
- Conference Information:
- Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 170:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTRONOMY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COBALT 56
COBALT 57
COBALT ISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ERUPTIVE VARIABLE STARS
EVEN-EVEN NUCLEI
GAMMA ASTRONOMY
GAMMA SPECTRA
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NUCLEI
NUCLEOSYNTHESIS
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SPECTRA
STAR MODELS
STARS
SUPERNOVAE
SYNTHESIS
THEORETICAL DATA
TITANIUM 44
TITANIUM ISOTOPES
VARIABLE STARS
YEARS LIVING RADIOISOTOPES
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTRONOMY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COBALT 56
COBALT 57
COBALT ISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ERUPTIVE VARIABLE STARS
EVEN-EVEN NUCLEI
GAMMA ASTRONOMY
GAMMA SPECTRA
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NUCLEI
NUCLEOSYNTHESIS
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SPECTRA
STAR MODELS
STARS
SUPERNOVAE
SYNTHESIS
THEORETICAL DATA
TITANIUM 44
TITANIUM ISOTOPES
VARIABLE STARS
YEARS LIVING RADIOISOTOPES