Intensity distributions of gamma-ray bursts

Conference · Mon Jan 01 00:00:00 EST 2001

DOI:https://doi.org/10.1063/1.1419404· OSTI ID:975351

Band, D L ^[1]

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1. David L.

Observations of individual bursts chosen by the vagaries of telescope availability demonstrated that bursts are not standard candles and that their apparent energy can be as great as 10{sup 54} erg. However, determining the distribution of their apparent energy (and of other burst properties) requires the statistical analysis of a well-defined burst sample; the sample definition includes the threshold for including a burst in the sample. Thus optical groups need to the criteria behind the decision to search for a spectroscopic redshift. Currently the burst samples are insufficient to choose between lognormal and power law functional forms of the distribution, and the parameter values for these functional forms differ between burst samples. Similarly, the actual intensity distribution may be broader than observed, with a low energy tail extending below the detection threshold.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• OSTI ID: 975351
• Report Number(s): LA-UR-01-2946; TRN: US201008%%65
• Resource Relation: Journal Volume: 587; Conference: "Submitted to: Proceedings of "GAMMA 2001", held in Baltimore, MD, April 4-6, 2001"
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GAMMA BURSTS
DETECTION
ENERGY SPECTRA