G A ] 1 0 O ct 2 01 7 Tidally disrupted dusty clumps as the origin of broad emission lines in active galactic nuclei

Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China School of Astronomy and Space Science, School of Physical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China National Astronomical Observatories of China, Chinese Academy of Sciences, 20A Datun Road, Beijing 100020, China Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China

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