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Improved limits on gamma-ray burst repetition from batse (Document No: 19970022380)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Tegmark, Max Hartmann, Dieter H. Meegan, Charles A. Hakkila, Jon Briggs, Michael S. |
| Copyright Year | 1996 |
| Description | We tighten previous upper limits on gamma-ray burst repetition by analyzing the angular power spectrum of the BATSE 3B catalog of 1122 bursts. At 95% confidence, we find that no more than 2% of all observed bursts can be labeled as repeaters, even if no sources are observed to repeat more than once. If a fraction f of all observed bursts can be labeled as repeaters that are observed to burst upsilon times each, then all models with (upsilon - 1)f greater than or equal to 0.05 are ruled out at 99% confidence, as compared to the best previous 99% limit (upsilon - 1)f greater than or equal to 0.27. At 95% confidence, our new limit is (upsilon - 1)f greater than or equal to 0.02. Thus, even a cluster of six events from a single source would have caused excess power above that present in the 3B catalog. We conclude that the current BATSE data are consistent with no repetition of classical gamma-ray bursts and that any repeater model is severely constrained by the near-perfect isotropy of their angular distribution. |
| File Size | 821733 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970022380 |
| Archival Resource Key | ark:/13960/t7sn5479f |
| Language | English |
| Publisher Date | 1996-08-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Statistical Analysis Power Spectra Statistical Distributions Gamma Ray Observatory Repeaters Angular Distribution Brightness Distribution Monte Carlo Method Gamma Ray Bursts Confidence Limits Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
