| タイトル | The spatial distribution of gamma-ray bursts from Pioneer Venus Orbiter |
| 著者（英） | Chuang, K. W.; Laros, J. G.; White, R. S.; Klebesadel, R. W. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1992-05-20 |
| 言語 | eng |
| 内容記述 | The homogeneity of the burst source population in space with the log N(greater than P sub c)-log P sub c and log (dN/dP sub c)-log P sub c relations is studied on the basis of a sample of 225 observed gamma-ray bursts between September 1978 and July 1988 from the Pioneer Venus Orbiter. The relations N(greater than P sub c) is approximately equal to P sub c exp -1.5 and dN/dP sub c is approximately equal to P sub c exp -2.5 are expected if the gamma bursters are uniformly distributed in space. The Kolmogorov-Smirnov statistic gives a probability of 0.93 that the observed integral distribution N(greater than P sub c) is drawn from the expected uniform distribution P sub c exp -1.5. A least-squares 1 standard deviation fit to the observed differential distribution yields dN/dP sub c of about P sub c -2.42 +/- 0.07. Both are consistent with a uniform distribution in space of the parent population of burst sources. |
| NASA分類 | SPACE RADIATION |
| レポートNO | 92A37720 |
| 権利 | Copyright |
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