Self-similarities and Power Laws in the Time-resolved Spectra of GRB 190114C, GRB 130427A, GRB 160509A, and GRB 160625B

Abstract Binary-driven hypernova (BdHN) models have been adopted to explain the observed properties of long gamma-ray bursts (GRBs). Here, we perform a comprehensive data analysis (temporal and spectral analysis, GeV emission, afterglow) on GRB 130427A, 160509A, 160625B. We identify three specific episodes characterized by different observational signatures show that these can be explained predicted occur within framework BdHNe I model, as first in 190114C reported an accompanying paper. Episode 1 includes “SN-rise” with characteristic cutoff power-law spectrum; 2 is initiated moment formation black hole, coincident onset emission ultrarelativistic prompt phase, power law blackbody spectra; 3 “cavity,” its featureless spectrum.