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An alternative statistical interpretation for the apparent plateaus in the duration distributions of GRBs by Osborne, Joshua Alexander; Bryant, Christopher Michael; Bagheri, Fatemeh; Shahmoradi, Amir is a scholarly article available to read on EtoBox.

What is An alternative statistical interpretation for the apparent plateaus in the duration distributions of GRBs about?

The existence of a plateau in the short-duration tail of the observed distribution of cosmological Long-soft Gamma Ray Bursts (LGRBs) has been argued as the first direct evidence of Collapsars. A similar plateau in the short-duration tail of the observed duration distribution of Short-hard Gamma Ray Bursts (SGRBs) has been suggested as evidence of compact binary mergers. We present an equally plausible alternative interpretation for this evidence, which is purely statistical. Specifically, we show that the observed plateau in the short-duration tail of the duration distribution of LGRBs can naturally occur in the statistical distributions of strictly positive physical quantities, exacerbated by the effects of mixing with the duration distribution of SGRBs, observational selection effects, and data aggregation (e.g., binning) methodologies. The observed plateau in the short-duration tail of the observed distributions of SGRBs can similarly result from a combination of sample incompleteness and inhomogeneous binning of data. The observed plateau in the short-duration tail of the observed distributions of SGRBs can similarly result from a combination of sample incompleteness and inhom

Author

Osborne, Joshua Alexander; Bryant, Christopher Michael; Bagheri, Fatemeh; Shahmoradi, Amir

Published

2023

Language

EN