Ukwatta 2010 一个新的长暴的频率和光度的关系

主要内容:
功率密度谱的频率和光度的关系，也不致密。

精彩摘抄:

文章信息:

· Find Similar Abstracts (with default settings below)

· arXiv e-print (arXiv:1011.4342)

· References in the Article

· Also-Read Articles (Reads History)

·

· Translate This Page

Title:		A New Frequency-Luminosity Relation for Long GRBs?
Authors:		Ukwatta, T. N.; Dhuga, K. S.; Morris, D. C.; MacLachlan, G.; Parke, W. C.; Maximon, L. C.; Eskandarian, A.; Gehrels, N.; Norris, J. P.; Shenoy, A.
Publication:		eprint arXiv:1011.4342
Publication Date:		11/2010
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Comment:		9 pages, 17 figures, 1 table; Accepted for publication in MNRAS
Bibliographic Code:		2010arXiv1011.4342U

Abstract

We have studied power density spectra (PDS) of 206 long Gamma-Ray Bursts (GRBs). We fitted the PDS with a simple power-law and extracted the exponent of the power-law (alpha) and the noise-crossing threshold frequency (f_th). We find that the distribution of the extracted alpha peaks around -1.4 and that of f_th around 1 Hz. In addition, based on a sub-set of 58 bursts with known redshifts, we show that the redshift-corrected threshold frequency is positively correlated with the isotropic peak luminosity. The correlation coefficient is 0.57 +/- 0.03.

---

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)