科研之友
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摘要
The distribution of pairwise distances f(l) for different dependences r(z) of the metric distance is used to reveal inhomogeneities in the spatial distribution of 201 long (T(90)>2(s)) gamma-ray bursts with measured redshifts z. For a fractal set with dimensionality D, this function behaves asymptotically as f(l) similar to l(D-1) for small l. Signs of fractal behavior with dimensionality D = 2.2-2.5 show up in all the models considered for the spatial distribution of the gamma-ray bursts. Several spatially distinct groups of gamma-ray bursts are identified. The group with equatorial coordinates ranging from 23(h)56(m) to 0(h)49(m) and delta from +19 degrees to +23 degrees with redshifts of 0.81-0.94 is examined separately.
- 出版日期2010-7
