Observation And Statistical Properties Of Supernovae And Kilonova Gamma-ray Burst

The accurate classification of GRBs is of great significance to the study of their physical nature.Therefore,from a statistical perspective,this article systematically analyzes their temporal and spectral properties of 53 Supernova-associated and 15 Kilonovaassociated Gamma-Ray Bursts(GRBs).Firstly,we found the KN/GRBs with shorter duration are formaed in more nearby universe in comparison with the SN/GRBs.The spectral parameters of two type GRBs are identically and lognormally distributed,which are also consistent with the corresponding mean values of those normal GRBs.The bolometric luminosities of SN/GRBs and-1.43 ± 0.33 for SN/GRBs and-2.17 ± 0.57 for KN/GRBs.Meanwhile,We verify that both SN/GRBs and KN/GRBs comply with Amati relations that roughly match those of long and short GRBs,with power law index are 0.34 ± 0.02 and 0.35 ± 0.07,respectively.By analyzing X-ray afterglows with good plateau segments,we build the power-law relations between the X-ray luminosity and the plateau time with an index of-1.12 ± 0.17 for KN/GRBs and confirm that the index should be-1.08 ± 0.22 for SN/GRBs,heavily overlapped in the plots of luminosity-lag and luminosity-time.If classifying the X-ray afterglows into three subclasses according to the temporal profiles,we find that distinct cases of SN/GRBs have the identical peak energy distribution,which is similar to the KN/GRBs with either X-ray flares or plateaus.However,those KN/GRBs with direct declining X-ray afterglows have the larger peak energy of 200 keV on average.Our investigations imply that at least parts of SN/GRBs and KN/GRBs might share with the same radiation mechanisms although they could originate from different progenitor or central engines...