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题名: GAMMA-RAY BURST LUMINOSITY RELATIONS: TWO-DIMENSIONAL VERSUS THREE-DIMENSIONAL CORRELATIONS
作者: Yu Bo(余波)1, 3; Qi Shi(祈石)2, 3; Lu Tan(陆埮)2, 3
刊名: ASTROPHYSICAL JOURNAL LETTERS
出版日期: 2009-11-01
卷号: 705, 期号:1, 页码:L15-L19
关键词: gamma rays: bursts
学科分类: Astronomy & Astrophysics
DOI: 10.1088/0004-637X/705/1/L15
文章类型: Article
英文摘要: The 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.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: COSMOLOGICAL PARAMETERS ; STANDARD CANDLES ; HUBBLE DIAGRAM ; DARK ENERGY ; REDSHIFTS ; RULERS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000270927900004
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/10962
Appears in Collections:陆埮_期刊论文

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作者单位: 1.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:
余波、祁石、陆埮.Gamma-ray Burst Luminosity Relations: Two-dimensional versus Three-dimensional Correlations,Astrophys. J.,2009,705(L15–L19):
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