Hakkila 2008 time lag, 峰值光度和时标之间的统计关系

主要内容:
time lag, 峰值光度和时标之间有比较好的统计关系。基本上，spectral time lag越短，峰值亮度越大，duration越长(我担心duration越长从而谱时延越短是因为pulse的时标长了，时延不清楚，从而以为比较短的，也就是这个关系不是内禀的)。

精彩摘抄:
L_peak vs Pulse duration

文章信息:

· arXiv e-print (arXiv:0803.1655)

· References in the Article

·

· Translate This Page

Title:		Correlations Between Lag, Luminosity, and Duration in Gamma-ray Burst Pulses
Authors:		Hakkila, Jon; Giblin, Timothy W.; Norris, Jay P.; Fragile, P. Chris; Bonnell, Jerry T.
Publication:		eprint arXiv:0803.1655
Publication Date:		03/2008
Origin:		ARXIV
Keywords:		Astrophysics
Comment:		14 pages, 4 figures, 1 table; accepted for publication in Astrophysical Journal Letters
Bibliographic Code:		2008arXiv0803.1655H

Abstract

We derive a new peak lag vs. peak luminosity relation in gamma-ray burst (GRB) pulses. We demonstrate conclusively that GRB spectral lags are pulse rather than burst properties and show how the lag vs. luminosity relation determined from CCF measurements of burst properties is essentially just a rough measure of this newly derived relation for individual pulses. We further show that most GRB pulses have correlated properties: short-lag pulses have shorter durations, are more luminous, and are harder within a burst than long-lag pulses. We also uncover a new pulse duration vs. pulse peak luminosity relation, and indicate that long-lag pulses often precede short-lag pulses. Although most pulse behaviors are supportive of internal shocks (including long-lag pulses), we identify some pulse shapes that could result from external shocks.

---

Bibtex entry for this abstract Preferred format for this abstract