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Ultraviolet and Optical Emission Line Outflows in the Heavily Obscured Quasar SDSS J000610.67+121501.2: At the Scale of the Dusty Torus and Beyond

Zhang, Shaohua and Zhou, Hongyan and Shi, Xiheng and Pan, Xiang and Wang, Ji and Jiang, Ning and Ji, Tuo and Jiang, Peng and Liu, Wenjuan and Wang, Huiyuan (2017) Ultraviolet and Optical Emission Line Outflows in the Heavily Obscured Quasar SDSS J000610.67+121501.2: At the Scale of the Dusty Torus and Beyond. Astrophysical Journal, 836 (1). Art. No. 86. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20170418-070030985

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Abstract

Broad emission line outflows of active galactic nuclei have been proposed for many years but are very difficult to quantitatively study because of the coexistence of the gravitationally bound and outflow emission. We present detailed analysis of a heavily reddened quasar, SDSS J000610.67+121501.2, whose normal ultraviolet broad emission lines (BELs) are heavily suppressed by the dusty torus as a natural "coronagraph," and thus the blueshifted BELs (BBELs) can be reliably measured. The physical properties of the emission-line outflows are derived as follows: ionization parameter U ~ 10^(-0.5), column density N_H ~ 10^(22.0) cm^(−2), covering fraction of ~0.1, and upper limit density of n_H ~ 10^(5.8) cm^(−3). The outflow gases are located at least 41 pc away from the central engine, which suggests that they have expanded to the scale of the dust torus or beyond. Besides, Lyα shows a narrow symmetric component, to our surprise, which is undetected in any other lines. After inspecting the narrow emission line region and the star-forming region as the origin of the Lyα narrow line, we propose that the end result of outflows, diffusing gases in the larger region, acts as the screen of Lyα photons. Future high spatial resolution spectrometry and/or spectropolarimetric observations are needed to make a final clarification.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.3847/1538-4357/836/1/86DOIArticle
http://iopscience.iop.org/article/10.3847/1538-4357/836/1/86PublisherArticle
https://arxiv.org/abs/1701.04501arXivDiscussion Paper
Additional Information:© 2017 American Astronomical Society. Received 2016 August 26. Accepted 2017 January 17. Published 2017 February 10. This work is supported by the National Natural Science Foundation of China (NSFC-11573024, 11473025, 11421303) and the National Basic Research Program of China (the 973 Program 2013CB834905). T.J. is supported by the National Natural Science Foundation of China (NSFC-11503022) and the Natural Science Foundation of Shanghai (NO. 15ZR1444200). P.J. is supported by the National Natural Science Foundation of China (NSFC-11233002). We acknowledge the use of the Hale 200-inch Telescope at Palomar Observatory through the Telescope Access Program (TAP), as well as the archive data from the SDSS, UKIDSS, and WISE surveys. TAP is funded by the Strategic Priority Research Program, the Emergence of Cosmological Structures (XDB09000000), National Astronomical Observatories, Chinese Academy of Sciences, and the Special Fund for Astronomy from the Ministry of Finance. Observations obtained with the Hale Telescope at Palomar Observatory were obtained as part of an agreement between the National Astronomical Observatories, Chinese Academy of Sciences, and the California Institute of Technology. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science. The SDSS-III Web site is http://www.sdss3.org/.
Funders:
Funding AgencyGrant Number
National Natural Science Foundation of China11573024
National Natural Science Foundation of China11473025
National Natural Science Foundation of China11421303
National Basic Research Program of China 973 Program2013CB834905
National Natural Science Foundation of ChinaNSFC-11503022
Natural Science Foundation of Shanghai15ZR1444200
National Natural Science Foundation of ChinaNSFC-11233002
Strategic Priority Research Program, the Emergence of Cosmological StructuresXDB09000000
National Astronomical Observatories, Chinese Academy of Sciences (NAOC) UNSPECIFIED
Ministry of Finance (China)UNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
NSFUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:galaxies: active; galaxies: individual (SDSS J000610.67+121501.2) ; galaxies: interactions; quasars: emission lines
Issue or Number:1
Record Number:CaltechAUTHORS:20170418-070030985
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170418-070030985
Official Citation:Shaohua Zhang et al 2017 ApJ 836 86
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76624
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:18 Apr 2017 17:50
Last Modified:03 Oct 2019 17:03

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