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	A cosmology-independent calibration of gamma-ray burst luminosity relations and the Hubble diagram
	Nan Liang ; Wei Ke Xiao ; Yuan Liu ; Shuang Nan Zhang
	2010-10-12 ; 2010-10-12
关键词	Bibliography Experimental/ calibration cosmology gamma-ray bursts red shift/ cosmology-independent calibration gamma-ray burst luminosity relation Hubble diagram GRB luminosity-energy relation redshift luminosity distance Type la supernovae flat Lambda CDM model dark energy model/ A9870R Cosmic gamma-ray sources A9880L Observational cosmology
中文摘要	An important concern in the application of gamma-ray bursts (GRBs) to cosmology is that the calibration of GRB luminosity/energy relations depends on the cosmological model, due to the lack of a sufficient low-redshift GRB sample. In this paper, we present a new method to calibrate GRB relations in a cosmology-independent way. Since objects at the same redshift should have the same luminosity distance, and since the distance moduli of Type la supernovae (SNe Ia) obtained directly from observations are completely cosmology independent, we obtain the distance modulus of a GRB at a given redshift by interpolating from the Hubble diagram of SNe Ia. Then we calibrate seven GRB relations without assuming a particular cosmological model and construct a GRB Hubble diagram to constrain cosmological parameters. From the 42 GRBs at 1.4 < z
语种	英语
出版者	University of Chicago Press ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81392]
专题	清华大学
推荐引用方式 GB/T 7714	Nan Liang,Wei Ke Xiao,Yuan Liu,et al. A cosmology-independent calibration of gamma-ray burst luminosity relations and the Hubble diagram[J],2010, 2010.
APA	Nan Liang,Wei Ke Xiao,Yuan Liu,&Shuang Nan Zhang.(2010).A cosmology-independent calibration of gamma-ray burst luminosity relations and the Hubble diagram..
MLA	Nan Liang,et al."A cosmology-independent calibration of gamma-ray burst luminosity relations and the Hubble diagram".(2010).

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