Different forms of long gamma-ray bursts (GRBs) Luminosity Functions are considered on the basis an explicit physical model. The inferred flux distributions compared with observed ones from two samples GRBs, Swift and Fermi GBM. best fit parameters functions found interpretations discussed. results consistent observation a comparable number flat phase afterglows monotonic decreasing ones.

X-ray ptychography has revolutionized nanoscale phase contrast imaging at large-scale synchrotron sources in recent years. We present here the first successful demonstration of technique a small-scale laboratory setting. An experiment was conducted with liquid metal-jet x-ray source and single photon-counting detector high spectral resolution. The used spot size 5 ?m to produce ptychographic im...