Tracking Outflow Using Line Locking (TOLL). I. The Case Study of Quasar J221531-174408

doi:10.3847/1538-4357/ad7e14

YNAO OpenIR > 南方基地

	Tracking Outflow Using Line Locking (TOLL). I. The Case Study of Quasar J221531-174408
	Chen, Chen 1; Yi WM(易卫敏)2 ; He, Zhicheng 3; Hamann, Fred 4; Ma, Bo 5
发表期刊	ASTROPHYSICAL JOURNAL
	2024-11-01
卷号	975 期号:2
DOI	10.3847/1538-4357/ad7e14
产权排序	第2完成单位
收录类别	SCI
摘要	Investigating line-locked phenomena within quasars is crucial for understanding the dynamics of quasar outflows, the role of radiation pressure in astrophysical flows, and the star formation history and metallicity of the early Universe. We have initiated the Tracking Outflow by Line Locking project to study quasar outflow by studying line-locking signatures using high-resolution high-signal-to-noise-ratio quasar spectra. In this paper, we present a case study of the line-locking signatures from QSO J221531-174408. The spectrum was obtained using the Very Large Telescope's UV Visual Echelle Spectrograph. We first identify associated absorbers in the spectrum using C iv, N v, and Si iv doublets and measure their velocity shifts, covering fractions, and column densities through a line-profile-fitting technique. Then we compare the velocity separations between different absorbers, and detect nine pairs of line-locked C iv doublets, three pairs of line-locked N v doublets, and one pair of line-locked Si iv doublets. This is one of the four quasars known to possess line-locked signatures in C iv, Si iv, and N v at the same time. We also find three complex line-locked systems, where three to five absorbers are locked together through multi-ion doublets. Our study suggests that line locking is a common phenomenon in the quasar outflows, and theoretical models involving more than two clouds and one ionic doublet are needed in the future to explain the formation of these complex line-locking signatures.
资助项目	National Natural Science Foundation of China[12103097]; National Natural Science Foundation of China[12073092]; National Natural Science Foundation of China[12222304]; National Natural Science Foundation of China[12192220]; National Natural Science Foundation of China[12192221]; Zhuhai College of Science and Technology
项目资助者	National Natural Science Foundation of China[12103097, 12073092, 12222304, 12192220, 12192221] ; Zhuhai College of Science and Technology
语种	英语
学科领域	天文学 ; 星系与宇宙学
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:001348934800001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	BROAD ABSORPTION-LINE ; C-IV ABSORPTION ; BLACK-HOLES ; RADIATION-PRESSURE ; OPTIMAL EXTRACTION ; GALAXY FORMATION ; SCALE OUTFLOWS ; GALACTIC WINDS ; DATA RELEASE ; N-V
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27674
专题	南方基地
作者单位	1.Zhuhai College of Science and Technology, Zhuhai 519000, People's Republic of China; 2.Yunnan Observatories, Kunming 650216, People's Republic of China; 3.CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei 230026, People's Republic of China; 4.Department of Physics and Astronomy, University of California Riverside, Riverside, CA 92507, USA; 5.School of Physics & Astronomy, Sun Yat-Sen University, Zhuhai 519000, People's Republic of China; [email protected]
推荐引用方式 GB/T 7714	Chen, Chen,Yi WM,He, Zhicheng,et al. Tracking Outflow Using Line Locking (TOLL). I. The Case Study of Quasar J221531-174408[J]. ASTROPHYSICAL JOURNAL,2024,975(2).
APA	Chen, Chen,易卫敏,He, Zhicheng,Hamann, Fred,&Ma, Bo.(2024).Tracking Outflow Using Line Locking (TOLL). I. The Case Study of Quasar J221531-174408.ASTROPHYSICAL JOURNAL,975(2).
MLA	Chen, Chen,et al."Tracking Outflow Using Line Locking (TOLL). I. The Case Study of Quasar J221531-174408".ASTROPHYSICAL JOURNAL 975.2(2024).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Tracking Outflow Usi（1254KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文