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Discovery of two broad absorption line quasars at redshift about 4.75 using the Lijiang 2.4 m telescope
Yi WM(易卫敏)1,2,3; Wu, XueBing4,5; Wang, FeiGe4; Yang, JinYi4; Yang, Qian4; Bai JM(白金明)1,3
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2015-09
卷号58期号:9
DOI10.1007/s11433-015-5685-4
产权排序第1完成单位
收录类别SCI ; EI
关键词High-redshift Active Galactic Nuclear (Agn) Broad Absorption Line Quasar (Balqso) Outflow
摘要

The ultraviolet broad absorption lines have been seen in the spectra of quasars at high redshift, and are generally considered to be caused by outflows with velocities from thousands kilometers per second to one tenth of the speed of light. They provide crucial implications for the cosmological structures and physical evolutions related to the feedback of active galactic nuclei (AGNs). Recently, through a dedicated program of optically spectroscopic identifications of selected quasar candidates at redshift 5 by using the Lijiang 2.4 m telescope, we discovered two luminous broad absorption line quasars (BALQSOs) at redshift about 4.75. One of them may even have the potentially highest absorption Balnicity Index (BI) ever found to date, which is remarkably characterized by its deep, broad absorption lines and sub-relativistic outflows. Further physical properties, including the metal abundances, variabilities, evolutions of the supermassive black holes (SMBH) and accretion disks associated with the feedback process, can be investigated with multi-wavelength follow-up observations in the future.

资助项目Chinese Academy of Sciences[XDB09000000] ; National Natural Science Foundation of China[11373008] ; National Natural Science Foundation of China[11133006] ; National Natural Science Foundation of China[11361140347] ; CAS ; People's Government of Yunnan Province
项目资助者Chinese Academy of Sciences [XDB09000000] ; National Natural Science Foundation of China [11373008, 11133006, 11361140347] ; CAS ; People's Government of Yunnan Province
语种英语
学科领域天文学 ; 星系与宇宙学
学科门类理学 ; 理学::天文学
文章类型Article
出版者SCIENCE PRESS
出版地16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
ISSN1674-7348
URL查看原文
归档日期2015-11-23
WOS记录号WOS:000360834200010
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
关键词[WOS]DIGITAL SKY SURVEY ; DATA RELEASE ; RADIO PROPERTIES ; EMISSION-LINE ; BLACK-HOLES ; FEEDBACK ; FRACTION ; CATALOG ; CONTINUUM ; EVOLUTION
EI入藏号20153201154025
EI主题词Absorption spectroscopy
EI分类号657.2Extraterrestrial Physics and Stellar Phenomena - 931.5Gravitation, Relativity and String Theory
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5459
专题南方基地
中国科学院天体结构与演化重点实验室
通讯作者Wu, XueBing
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650011, China
2.University of the Chinese Academy of Sciences, Beijing, 100049, China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China
4.Department of Astronomy, School of Physics, Peking University, Beijing, 100871, China
5.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, 100871, China
第一作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Yi WM,Wu, XueBing,Wang, FeiGe,et al. Discovery of two broad absorption line quasars at redshift about 4.75 using the Lijiang 2.4 m telescope[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2015,58(9).
APA Yi WM,Wu, XueBing,Wang, FeiGe,Yang, JinYi,Yang, Qian,&Bai JM.(2015).Discovery of two broad absorption line quasars at redshift about 4.75 using the Lijiang 2.4 m telescope.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,58(9).
MLA Yi WM,et al."Discovery of two broad absorption line quasars at redshift about 4.75 using the Lijiang 2.4 m telescope".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 58.9(2015).
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