Hu Lei1; Wu Xuefeng1; Andreoni Igor2; Ashley Michael C B3; Cooke Jeff2; Cui Xiangqun4; Du Fujia4; Dai Zigao5; Gu Bozhong4; Huk Yi6; Lu Haiping4; Li Xiaoyan4; Li Zhengyang4; Liang Ensi5; Liu Liangduan5; Mak Bin6; Shang Zhaohui7; Sun Tianrui1; Suntzeff N B8; Tao Charling9; Uddin Syed A1; Wangn Lifan1; Wang Xiaofeng10; Wen Haikun4; Xiao Di5; Xu Jin4; Yang Ji1; Yang Shihai4; Yuan Xiangyan4; Zhou Hongyan11; Zhang Hui5; Zhou Jilin5; Zhu Zonghong12
Source Publicationsciencebulletin
AbstractThe ligo detection of gravitational waves (gw) from merging black holes in 2015 marked the beginning of a new era in observational astronomy. the detection of an electromagnetic signal from a gw source is the critical next step to explore in detail the physics involved. the antarctic survey telescopes (ast3), located at dome a, antarctica, is uniquely situated for rapid response time-domain astronomy with its continuous night-time coverage during the austral winter. we report optical observations of the gw source (gw 170817) in the nearby galaxy ngc 4993 using ast3. the data show a rapidly fading transient at around 1 day after the gw trigger, with the i-band magnitude declining from 17.23 +/- 0.13 magnitude to 17.72 +/- 0.09 magnitude in similar to 1.8 h. the brightness and time evolution of the optical transient associated with gw 170817 are broadly consistent with the predictions of models involving merging binary neutron stars. we infer from our data that the merging process ejected about similar to 10(-2) solar mass of radioactive material at a speed of up to 30% the speed of light. (c) 2017 science china press. published by elsevier b.v. and science china press. all rights reserved.
Document Type期刊论文
6.Chinese Center for Antarctic Astronomy
8.George P. and Cynthia Woods Mitchell Institute for Fundamental Physics & Astronomy, Texas A. & M. University, Department of Physics and Astronomy, 4242 TAMU, College Station
9.Aix Marseille Univ, CNRS/IN2P3, CPPM
11.Polar Research Institute of China
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
Hu Lei,Wu Xuefeng,Andreoni Igor,et al. opticalobservationsofligosourcegw170817bytheantarcticsurveytelescopesatdomeaantarctica[J]. sciencebulletin,2017,62(21):1433.
APA Hu Lei.,Wu Xuefeng.,Andreoni Igor.,Ashley Michael C B.,Cooke Jeff.,...&Zhu Zonghong.(2017).opticalobservationsofligosourcegw170817bytheantarcticsurveytelescopesatdomeaantarctica.sciencebulletin,62(21),1433.
MLA Hu Lei,et al."opticalobservationsofligosourcegw170817bytheantarcticsurveytelescopesatdomeaantarctica".sciencebulletin 62.21(2017):1433.
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