Gamma-ray bursts from nearby neutron stars

The Local-Galactic interpretation of the Gamma-Ray Bursts

“…Their individual emissions are expected to be mildly beamed w.r.t. their disk planes, hence their superposition slightly beamed perpendicular to the Milky-Way disk, as already quantified in Kundt & Chang (1993). Note that with increasing sensitivity and duration of our surveys, the log(N)-log(S) diagram has increasingly evolved towards a (Euclidean) S −3/2 distribution whose lower and upper turnover intensities S min and S max have moved apart from each other with observation epoch, corresponding to a growing distance ratio d max /d min of the detected sources -because of S ∼ d −2 -from an initial 2 to a later 10, see Fig.…”

“…Can this interpretation explain all the riddles (i) through (iv) listed at the beginning of the last section? The almost isotropy of arrivals (i) has already been explained as a (partial) compensation of column number densities by mild beaming (in the disk planes) in (Kundt & Chang 1993). Missing so far was a good explanation for the large observed redshifts in the afterglows.…”

“…• (xjv) The accreting Galactic dead-pulsar population should be detected, at a generally agreed integrated mass rate of 10 −17 M ⊙ /yr n* (Kundt & Chang 1993).…”

“…And (xx) the famous 'thin-shell' distribution of the GRBs by BATSE, inferred from the logN -vs-logS diagram -and thickened a bit by the Pioneer-Venus-Orbiter data -poses problems to both interpretations. In the local-Galactic interpretation, it asks for a certain fine-tuning between the inhomogeneous distribution of the Galaxy's nearby throttled pulsars and their somewhat anisotropic emissions, which has been shown not to be prohibitive, though, both analytically and numerically, by Kundt & Chang (1993). When fundamental physics clashes with circumstantial or statistical 'evidence', my confidence is in the former.…”

Fraunhoffer Diffraction of Electrons in Anisotropic Media

“…an almost isotropic distribution of bursts, as stated above (in the abstract). Kundt & Chang (1993) played this game both analytically and numerically, and were able to reproduce the measurements for plausible ranges of three fit parameters (angles). Our predictions have remained valid for the improved statistics analysed by Belli (1997), by Balázs et al (1997), and by Pendleton et al (1997), all three of whom meet with problems in the cosmological interpretation.…”