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A New Measurement of the Spectral Lag of Gamma-Ray Bursts and its Implications for Spectral Evolution Behaviors
Shao, Lang1,2; Zhang, Bin-Bin3,4; Wang, Fu-Ri1; Wu, Xue-Feng2,5,6; Cheng, Ye-Hao1; Zhang, Xi1; Yu, Bang-Yao1; Xi, Bao-Jia1; Wang, Xue1; Feng, Huan-Xue1,7; Zhang, Meng1; Xu, Dong7
2017-08-01
Source PublicationASTROPHYSICAL JOURNAL
Volume844Issue:2
AbstractWe carry out a systematical study of the spectral lag properties of 50 single-pulsed gamma-ray bursts (GRBs) detected by the Fermi Gamma-Ray Burst Monitor. By dividing the light curves into multiple consecutive energy channels, we provide a new measurement of the spectral lag that is independent of energy channel selections. We perform a detailed statistical study of our new measurements. We find two similar power-law energy dependencies of both the pulse arrival time and pulse width. Our new results on the power-law indices would favor the relativistic geometric effects for the origin of spectral lag. However, a complete theoretical framework that can fully account for the diverse energy dependencies of both arrival time and pulse width revealed in this work is still lacking. We also study the spectral evolution behaviors of the GRB pulses. We find that a GRB pulse with negligible spectral lag would usually have a shorter pulse duration and would appear to have a "hardness-intensity tracking" behavior, and a GRB pulse with a significant spectral lag would usually have a longer pulse duration and would appear to have a "hard-to-soft" behavior.
SubtypeArticle
KeywordGamma-ray Burst: General Methods: Data Analysis Radiation Mechanisms: Nonthermal Supporting Material: Figure Set Machine-readable Table
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(11103083 ; National Natural Science Foundation of China(11103083 ; Chinese Academy of Sciences(XDB23000000 ; Chinese Academy of Sciences(XDB23000000 ; NSFC-ISF(11361140349) ; NSFC-ISF(11361140349) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Israel Science Foundation ; Israel Science Foundation ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Youth Innovation Promotion Association(2011231) ; Youth Innovation Promotion Association(2011231) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11433009 ; 11433009 ; QYZDB-SSW-SYS005) ; QYZDB-SSW-SYS005) ; AYA2015-71718-R) ; AYA2015-71718-R) ; 11673068 ; 11673068 ; 11533003) ; 11533003) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(11103083 ; National Natural Science Foundation of China(11103083 ; Chinese Academy of Sciences(XDB23000000 ; Chinese Academy of Sciences(XDB23000000 ; NSFC-ISF(11361140349) ; NSFC-ISF(11361140349) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Israel Science Foundation ; Israel Science Foundation ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Youth Innovation Promotion Association(2011231) ; Youth Innovation Promotion Association(2011231) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11433009 ; 11433009 ; QYZDB-SSW-SYS005) ; QYZDB-SSW-SYS005) ; AYA2015-71718-R) ; AYA2015-71718-R) ; 11673068 ; 11673068 ; 11533003) ; 11533003)
DOI10.3847/1538-4357/aa7d01
WOS KeywordGRB PROMPT EMISSION ; 1ST 4 YEARS ; LUMINOSITY RELATION ; COMPREHENSIVE ANALYSIS ; ENERGY-DEPENDENCE ; PHYSICAL ORIGINS ; PEAK LUMINOSITY ; PULSES ; LONG ; CATALOG
Indexed BySCI
Language英语
Funding OrganizationNational Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(11103083 ; National Natural Science Foundation of China(11103083 ; Chinese Academy of Sciences(XDB23000000 ; Chinese Academy of Sciences(XDB23000000 ; NSFC-ISF(11361140349) ; NSFC-ISF(11361140349) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Israel Science Foundation ; Israel Science Foundation ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Youth Innovation Promotion Association(2011231) ; Youth Innovation Promotion Association(2011231) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11433009 ; 11433009 ; QYZDB-SSW-SYS005) ; QYZDB-SSW-SYS005) ; AYA2015-71718-R) ; AYA2015-71718-R) ; 11673068 ; 11673068 ; 11533003) ; 11533003) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(11103083 ; National Natural Science Foundation of China(11103083 ; Chinese Academy of Sciences(XDB23000000 ; Chinese Academy of Sciences(XDB23000000 ; NSFC-ISF(11361140349) ; NSFC-ISF(11361140349) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Israel Science Foundation ; Israel Science Foundation ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Spanish Ministry Projects(AYA 2012-39727-C03-01 ; Youth Innovation Promotion Association(2011231) ; Youth Innovation Promotion Association(2011231) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11433009 ; 11433009 ; QYZDB-SSW-SYS005) ; QYZDB-SSW-SYS005) ; AYA2015-71718-R) ; AYA2015-71718-R) ; 11673068 ; 11673068 ; 11533003) ; 11533003)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000406652900004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/20076
Collection空间科学研究部
Affiliation1.Hebei Normal Univ, Dept Space Sci & Astron, Shijiazhuang 050024, Hebei, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
3.CSIC, IAA, POB 03004, E-18080 Granada, Spain
4.Scientist Support LLC, Madsion, AL 35758 USA
5.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
6.Nanjing Univ, Joint Ctr Particle Nucl Phys & Cosmol, Purple Mt Observ, Nanjing 210008, Peoples R China
7.Chinese Acad Sci, Key Lab Space Astron & Technol, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Shao, Lang,Zhang, Bin-Bin,Wang, Fu-Ri,et al. A New Measurement of the Spectral Lag of Gamma-Ray Bursts and its Implications for Spectral Evolution Behaviors[J]. ASTROPHYSICAL JOURNAL,2017,844(2).
APA Shao, Lang.,Zhang, Bin-Bin.,Wang, Fu-Ri.,Wu, Xue-Feng.,Cheng, Ye-Hao.,...&Xu, Dong.(2017).A New Measurement of the Spectral Lag of Gamma-Ray Bursts and its Implications for Spectral Evolution Behaviors.ASTROPHYSICAL JOURNAL,844(2).
MLA Shao, Lang,et al."A New Measurement of the Spectral Lag of Gamma-Ray Bursts and its Implications for Spectral Evolution Behaviors".ASTROPHYSICAL JOURNAL 844.2(2017).
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