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GAMMA-RAY BURST LUMINOSITY RELATIONS: TWO-DIMENSIONAL VERSUS THREE-DIMENSIONAL CORRELATIONS
Yu, Bo1,3; Qi, Shi2,3; Lu, Tan2,3
2009-11-01
Source PublicationASTROPHYSICAL JOURNAL LETTERS
Volume705Issue:1Pages:L15-L19
AbstractThe large scatters of luminosity relations of gamma-ray bursts (GRBs) have been one of the most important reasons that prevent the extensive applications of GRBs in cosmology. In this paper, we extend the two-dimensional (2D) luminosity relations with tau(lag), V, E(peak), and tau(RT) as the luminosity indicators to three dimensions (3D) using the same set of luminosity indicators to explore the possibility of decreasing the intrinsic scatters. We find that, for the 3D luminosity relations between the luminosity and an energy scale (E(peak)) and a timescale (tau(lag) or tau(RT)), their intrinsic scatters are considerably smaller than those of corresponding 2D luminosity relations. Enlightened by the result and the definition of the luminosity (energy released in units of time), we discussed possible reasons behind this result, which may give us helpful suggestions on seeking more precise luminosity relations for GRBs in the future.
KeywordGamma Rays: Bursts
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/705/1/L15
WOS KeywordCOSMOLOGICAL PARAMETERS ; STANDARD CANDLES ; HUBBLE DIAGRAM ; DARK ENERGY ; REDSHIFTS ; RULERS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000270927900004
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10962
Collection院士文集_陆埮
Affiliation1.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
3.Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China
Recommended Citation
GB/T 7714
Yu, Bo,Qi, Shi,Lu, Tan. GAMMA-RAY BURST LUMINOSITY RELATIONS: TWO-DIMENSIONAL VERSUS THREE-DIMENSIONAL CORRELATIONS[J]. ASTROPHYSICAL JOURNAL LETTERS,2009,705(1):L15-L19.
APA Yu, Bo,Qi, Shi,&Lu, Tan.(2009).GAMMA-RAY BURST LUMINOSITY RELATIONS: TWO-DIMENSIONAL VERSUS THREE-DIMENSIONAL CORRELATIONS.ASTROPHYSICAL JOURNAL LETTERS,705(1),L15-L19.
MLA Yu, Bo,et al."GAMMA-RAY BURST LUMINOSITY RELATIONS: TWO-DIMENSIONAL VERSUS THREE-DIMENSIONAL CORRELATIONS".ASTROPHYSICAL JOURNAL LETTERS 705.1(2009):L15-L19.
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