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A Deeply Buried Narrow-line Seyfert 1 Nucleus Uncovered in Scattered Light
Pan, Xiang1,2; Lu, Honglin2; Komossa, S.3; Xu, Dawei4; Yuan, Weimin4; Sun, Luming2; Smith, Paul S.5; Zhang, Shaohua1; Jiang, Peng1; Yang, Chenwei1; Liu WJ(刘文娟)6; Jiang, Ning3; Rashed, Y. E.7; Eckart, A.8; Dierkes, Jens8; Zhou, Hongyan1,2
发表期刊ASTROPHYSICAL JOURNAL
2019-01-10
卷号870期号:2页码:8
DOI10.3847/1538-4357/aaf1bc
产权排序第6完成单位
收录类别SCI
关键词galaxies: Seyfert quasars: emission lines quasars: individual (SDSS J120300.19+162443.7)
摘要

We present spectropolarimetric and spectrophotometric observations of the peculiar active galactic nucleus (AGN) SDSS J120300.19+162443.7 (hereafter J1203+1624) at z = 0.1656. Its optical total flux spectra clearly show broad emission lines (BELs) in H alpha and H beta. After removal of narrow emission lines (NELs), the full width at half maximum (FWHM) of the Lorentzian BEL is FWHMBEL approximate to 1270 km s(-1), fulfilling the conventional definition of a narrow-line Seyfert 1 (NLS1) galaxy. However, its NELs are unprecedentedly strong when compared to type 1 AGNs. This, together with its large MIR excess (g - W-4 = 13.172 mag), implies that the observer and the NEL region might see a different ionization continuum. Our optical spectropolarimetry confirms its type 2 nature by detecting a polarized blue continuum and Balmer BELs (FWHMPolarized BEL approximate to 1183 km s(-1)), with a high polarization degree of > 20% in the blue wing. The mass and Eddington rate of the central black hole are estimated based on both transmitted and scattered AGN radiation, which is M-center dot < 2.9 x 10(7) M-circle dot and L-bol/L-Edd > 1.5. Severe extinction of the AGN emission also enables a clear view of the compact host galaxy. The discovery of J1203 +1624 suggests that NLS1 follows the AGN unification scheme, and studying its analogs could blaze a new trail for exploring the connection between black hole growth and star formation in the host galaxy. The interesting features of J1203+1624, like the peculiar NELs and inflowing scattering clouds within the sublimation radius, are worth detailed follow-ups in the future.

资助项目National Natural Science Foundation of China[NSFC-11473025] ; National Natural Science Foundation of China[11573024] ; National Natural Science Foundation of China[11421303] ; National Natural Science Foundation of China[NSFC-11773036] ; National Natural Science Foundation of China[NSFC-11233002] ; National Basic Research Program of China (the 973 Program)[2013CB834905] ; Natural Science Foundation of Anhui[1808085MA24] ; Strategic Priority Research Program, Emergence of Cosmological Structures, National Astronomical Observatories, Chinese Academy of Sciences[XDB09000000] ; Special Fund for Astronomy from the Ministry of Finance ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science
项目资助者National Natural Science Foundation of China[NSFC-11473025, 11573024, 11421303, NSFC-11773036, NSFC-11233002] ; National Basic Research Program of China (the 973 Program)[2013CB834905] ; Natural Science Foundation of Anhui[1808085MA24] ; Strategic Priority Research Program, Emergence of Cosmological Structures, National Astronomical Observatories, Chinese Academy of Sciences[XDB09000000] ; Special Fund for Astronomy from the Ministry of Finance ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science
语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学 ; 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IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000455820100021
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]DIGITAL SKY SURVEY ; OPTICAL SPECTROPOLARIMETRY ; II QUASARS ; GALAXIES ; VARIABILITY ; SPECTRA ; POPULATION ; RESOLUTION ; DISCOVERY ; ASCA
引用统计
被引频次:5[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/114a53/19225
专题自由探索组
通讯作者Zhou, Hongyan
作者单位1.Polar Research Institute of China, 451 Jinqiao Road, Shanghai, 200136, People's Republic of China
2.Key Laboratory for Researches in Galaxies and Cosmology, Department of Astronomy, University of Sciences and Technology of China, Chinese Academy of Sciences, Hefei, Anhui, 230026, People's Republic of China
3.Max Planck Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People's Republic of China
5.Steward Observatory, University of Arizona, Tucson, AZ 85721, USA
6.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, People's Republic of China
7.Department of Astronomy, Faculty of Science, University of Baghdad, 10071 Baghdad—Aljadirya, Iraq
8.University and City Library Cologne, Department Research and Publication Support, University of Cologne, Universitätsstr, 33, D-50931 Cologne, Germany
推荐引用方式
GB/T 7714
Pan, Xiang,Lu, Honglin,Komossa, S.,et al. A Deeply Buried Narrow-line Seyfert 1 Nucleus Uncovered in Scattered Light[J]. ASTROPHYSICAL JOURNAL,2019,870(2):8.
APA Pan, Xiang.,Lu, Honglin.,Komossa, S..,Xu, Dawei.,Yuan, Weimin.,...&Zhou, Hongyan.(2019).A Deeply Buried Narrow-line Seyfert 1 Nucleus Uncovered in Scattered Light.ASTROPHYSICAL JOURNAL,870(2),8.
MLA Pan, Xiang,et al."A Deeply Buried Narrow-line Seyfert 1 Nucleus Uncovered in Scattered Light".ASTROPHYSICAL JOURNAL 870.2(2019):8.
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