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The Sloan Digital Sky Survey Reverberation Mapping Project: Key Results
Yue Shen, Catherine J. Grier, Keith Horne +44
We present the final data from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project, a precursor to the SDSS-V Black Hole Mapper Reverberation Mapping program. This…
Mrk 1239: a Type-2 Counterpart of Narrow-line Seyfert-1?
Xiang Pan, Hongyan Zhou, Chenwei Yang +10
We present new spectrophotometric and spectropolarimetric observations of Mrk 1239, one of the 8 prototypes that defines type-1 narrow-line Seyfert galaxies (NLS1s). Unlike the oth…
What Makes Ly Nebulae Glow? Mapping the Polarization of LABd05
Eunchong Kim, Yujin Yang, Ann Zabludoff +5
"Ly nebulae" are giant (100 kpc), glowing gas clouds in the distant universe. The origin of their extended Ly emission remains a mystery. Some models posit that Ly e…
Mid-IR Variability and Dust Reverberation Mapping of Low- Quasars. I. Data, Methods and Basic Results
Jianwei Lyu, George H. Rieke, Paul S. Smith
The continued operation of the Wide-field Infrared Survey Explorer (WISE) combined with several ground-based optical transient surveys (e.g., CRTS, ASAS-SN and PTF) offer an unprec…
A Deeply Buried Narrow-Line Seyfert 1 Nucleus Uncovered in Scattered Light
Xiang Pan, Honglin Lu, S. Komossa +13
We present spectropolarimetric and spectrophotometric observations of the peculiar active galactic nucleus (AGN) SDSS J120300.19+162443.7 (hereafter J1203+1624) at . Its…
Kinematics of the Broad-line Region of 3C 273 from a Ten-year Reverberation Mapping Campaign
Zhi-Xiang Zhang, Pu Du, Paul S. Smith +9
Despite many decades of study, the kinematics of the broad-line region of 3C~273 are still poorly understood. We report a new, high signal-to-noise, reverberation mapping campaign…