GRB 081029: A GAMMA-RAY BURST WITH A MULTI-COMPONENT AFTERGLOW

	GRB 081029: A GAMMA-RAY BURST WITH A MULTI-COMPONENT AFTERGLOW
	Holland, ST 1,2,3; De Pasquale, M 4; Mao JR(毛基荣)5,6,7,8 ; Sakamoto, T 1,3,9; Schady, P 4,10; Covino, S 5; Fan, YZ 11; Jin, ZP 5,11; D'Avanzo, P 5; Antonelli, A 12
刊名	ASTROPHYSICAL JOURNAL
	2012-01-20
卷号	745 期号:1
关键词	gamma-ray burst: general gamma-ray burst: individual: GRB 081029
ISSN号	0004-637X
通讯作者	Holland, ST (reprint author), NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Code 660-1,8800 Greenbelt Rd, Greenbelt, MD 20771 USA.
产权排序	第六完成单位
英文摘要	We present an analysis of the unusual optical light curve of the gamma-ray burst GRB 081029, a long-soft burst with a redshift of z = 3.8479. We combine X-ray and optical observations from the Swift X-Ray Telescope and the Swift UltraViolet/Optical Telescope with ground-based optical and infrared data obtained using the REM, ROTSE, and CTIO 1.3 m telescopes to construct a detailed data set extending from 86 s to similar to 100000 s after the BAT trigger. Our data cover a wide energy range from 10 keV to 0.77 eV (1.24 angstrom-16000 angstrom). The X-ray afterglow shows a shallow initial decay followed by a rapid decay starting at about 18000 s. The optical and infrared afterglow, however, shows an uncharacteristic rise at about 3000 s that does not correspond to any feature in the X-ray light curve. Our data are not consistent with synchrotron radiation from a jet interacting with an external medium, a two-component jet, or continuous energy injection from the central engine. We find that the optical light curves can be broadly explained by a collision between two ejecta shells within a two-component jet. A growing number of gamma-ray-burst afterglows are consistent with complex jets, which suggests that some (or all) gamma-ray-burst jets are complex and will require detailed modeling to fully understand them.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	SWIFT ULTRAVIOLET/OPTICAL TELESCOPE ; SPECTRAL IRRADIANCE CALIBRATION ; LIGHT CURVES ; COMMON ORIGIN ; DUST ; REDSHIFT ; JET ; PROMPT ; BAT ; ENVIRONMENT
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/745/1/41/meta
语种	英语
WOS记录号	WOS:000300316600041
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5025]
专题	云南天文台_高能天体物理研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.Astrophysics Science Division, Code 660.1, 8800 Greenbelt Road, Goddard Space Flight Centre, Greenbelt, MD 20771, USA 2.Universities Space Research Association, 10211 Wincopin Circle, Suite 500 Columbia, MD 21044, USA 3.Centre for Research and Exploration in Space Science and Technology, Code 668.8, 8800 Greenbelt Road, Goddard Space Flight Centre, Greenbelt, MD 20771, USA 4.Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking RH5 6NT, UK 5.INAF-Osservatorio Astronomico di Brera, Via Emilio Bianchi 46, I-23807 Merate (LC), Italy 6.Yunnan Observatory, Chinese Academy of Sciences, Kumming, Yunan Province 650011, China 7.International Centre for Astrophysics, Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon, Republic of Korea 305-348 8.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, Yunnan Province 650011, China 9.Joint Centre for Astrophysics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA 10.Max-Planck-Institut für Extraterrestrische Physik, Gießenbachstraße, D-85748 Garching, Germany
推荐引用方式 GB/T 7714	Holland, ST,De Pasquale, M,Mao JR,et al. GRB 081029: A GAMMA-RAY BURST WITH A MULTI-COMPONENT AFTERGLOW[J]. ASTROPHYSICAL JOURNAL,2012,745(1).
APA	Holland, ST.,De Pasquale, M.,Mao JR.,Sakamoto, T.,Schady, P.,...&Cobb, BE.(2012).GRB 081029: A GAMMA-RAY BURST WITH A MULTI-COMPONENT AFTERGLOW.ASTROPHYSICAL JOURNAL,745(1).
MLA	Holland, ST,et al."GRB 081029: A GAMMA-RAY BURST WITH A MULTI-COMPONENT AFTERGLOW".ASTROPHYSICAL JOURNAL 745.1(2012).