Redshift Dependent Lag-Luminosity Relation in 565 BASTE Gamma Ray Bursts

Content Provider	Semantic Scholar
Author	Tsutsui, Ryo Nakamura, Takashi Yonetoku, Daisuke Murakami, Toshio Tanabe, Sachiko Kodama, Yoshiki
Copyright Year	2008
Abstract	We compared redshifts zY from Yonetoku relation and zlag from the lag-luminosity relation for 565 BASTE GRBs and were surprised to find that the correlation is very low. Assuming that the luminosity is a function of both zY and the intrinsic spectral lag τlag, we found a new redshift dependent lag-luminosity relation as L = 7.5×1050erg/s(1+z)2.53τ lag with the correlation coefficient of 0.77 and the chance probability of 7.9×10. To check the validity of this method, we examined the other luminosity indicator, Amati relation, using zY and the observed fluence and found the correlation coefficient of 0.92 and the chance probability of 5.2×10. Although the spectral lag is computed from two channels of BATSE, our new lag-luminosity relation suggests that a possible lag-luminosity relation in the Swift era should also depend on redshift.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://arxiv.org/pdf/0710.5864v1.pdf
Language	English
Access Restriction	Open
Subject Keyword	Coefficient Interferon Type II Redshift STMN1 gene STMN1 wt Allele Swift (programming language)
Content Type	Text
Resource Type	Article