An underground search for an excess muon flux from the direction of Cygnus X-3
During the period July, 1987 through March, 1988 (livetime 0.5 year) an array of 128 proportional wire modules, arranged in two planes (each of two crossed layers) separated by 10 m, and with effective overlap areas of 35 m/sup 2/, was operated as an underground muon detector. The detector is located at a depth of 2100 meters of water equivalent in northern Minnesota (92.2/degree/ W, 47.7/degree/N). The response time for the proportional tubes is 1 /mu/s and the overall angular resolution is 2/degree/. Absolute timing information (/approximately/1 ms) was available for most of the 250,000 recorded triggers. A sample of the total data consisting of 103,000 reconstructed, single muon tracks, was used to search for an excess muon flux from the direction of the astronomical point source, Cygnus X-3. We report an integrated excess flux from that direction of (6/plus minus/2) /times/ 10/sup /minus/11/ cm/sup /minus/2/s/sup /minus/1/. The vertical muon flux was also measured and found to be (1.2/plus minus/0.3) /times/ 10/sup /minus/3/m/sup /minus/2/s/sup /minus/1/sterad/sup /minus/1/. 65 figs., 5 tabs.
- Research Organization:
- Tufts Univ., Medford, MA (USA)
- DOE Contract Number:
- AC02-83ER40085
- OSTI ID:
- 5875747
- Report Number(s):
- DOE/ER/40085-16; ON: DE89014935
- Country of Publication:
- United States
- Language:
- English
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An underground search for an excess muon flux from the direction of Cygnus X-3
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Thesis/Dissertation
·
Sat Dec 31 23:00:00 EST 1988
·
OSTI ID:6599582
Study of muons from the direction of Cygnus X-3 using an underground proportional-tube array
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Wed Oct 31 23:00:00 EST 1990
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OSTI ID:6205283
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OSTI ID:6612541
Related Subjects
440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY STARS
CHARGED PARTICLE DETECTION
COMPUTERIZED SIMULATION
COSMIC MUONS
COSMIC RADIATION
DESIGN
DETECTION
ELECTRONIC CIRCUITS
ELEMENTARY PARTICLES
FERMIONS
IONIZING RADIATIONS
LEPTONS
MEASURING INSTRUMENTS
MONTE CARLO METHOD
MULTIWIRE PROPORTIONAL CHAMBERS
MUON DETECTION
MUONS
PROPORTIONAL COUNTERS
PULSE CIRCUITS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
SIMULATION
STARS
TRIGGER CIRCUITS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY STARS
CHARGED PARTICLE DETECTION
COMPUTERIZED SIMULATION
COSMIC MUONS
COSMIC RADIATION
DESIGN
DETECTION
ELECTRONIC CIRCUITS
ELEMENTARY PARTICLES
FERMIONS
IONIZING RADIATIONS
LEPTONS
MEASURING INSTRUMENTS
MONTE CARLO METHOD
MULTIWIRE PROPORTIONAL CHAMBERS
MUON DETECTION
MUONS
PROPORTIONAL COUNTERS
PULSE CIRCUITS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
SIMULATION
STARS
TRIGGER CIRCUITS