Results 51 to 60 of about 1,338,515 (290)

Continuum Reverberation Mapping of Accretion Disks Surrounding Supermassive Black Hole Binaries: Observational Signatures [PDF]

Monthly notices of the Royal Astronomical Society
It has remained challenging to reliably identify sub-parsec supermassive black hole binaries (SMBHBs), despite them being expected to be ubiquitous.
Yi-Xin Fu, Yan-Rong Li, Jian-Min Wang, K. Horne, J. V. H. Santisteban, R. Vieliute, R. Edelson, Tingting Liu, M. Brotherton, L. V. Popovi'c, A. Kovavcevi'c, S. Zhai   +11 more
semanticscholar   +1 more source

Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XV. Reverberation Mapping of Mg ii Emission Lines [PDF]

Astrophysical Journal Supplement Series
As the 15th paper in a series reporting on a large reverberation mapping (RM) campaign of super-Eddington accreting massive black holes (SEAMBHs) in active galactic nuclei (AGNs), we present the results of measurements of the Mg ii lines in 18 SEAMBHs ...
Hua-Rui Bai, P. Du, Chen Hu, Yong-Jie Chen, Z. Yao, Yan-Rong Li, Yi-Xin Fu, Yi-Lin Wang, Yu Zhao, Hao Zhang, Jun-Rong Liu, Sen Yang, Yue-Chang Peng, F. Fang, Yu-Yang Songsheng, M. Xiao, S. Zhai, Sha-Sha Li, Kai Lu, Zhi-Xiang Zhang, D. Bao, Weiji Guo, Jiancheng Feng, Yi-Peng Zhao, Jesús Aceituno, Jingjie Bai, Luis C. Ho, Jian-Min Wang   +27 more
semanticscholar   +1 more source

SPACE TELESCOPE AND OPTICAL REVERBERATION MAPPING PROJECT.VI. REVERBERATING DISK MODELS FOR NGC 5548 [PDF]

The Astrophysical Journal, 2017
ABSTRACT We conduct a multiwavelength continuum variability study of the Seyfert 1 galaxy NGC 5548 to investigate the temperature structure of its accretion disk. The 19 overlapping continuum light curves ( to
D. Starkey, Keith Horne, M. M. Fausnaugh, B. M. Peterson, M. C. Bentz, C. S. Kochanek, K. D. Denney, R. Edelson, M. R. Goad, G. De Rosa, M. D. Anderson, P. Arévalo, A. J. Barth, C. Bazhaw, G. A. Borman, T. A. Boroson, M. C. Bottorff, W. N. Brandt, A. A. Breeveld, E. M. Cackett, M. T. Carini, K. V. Croxall, D. M. Crenshaw, E. Dalla Bontà, A. De Lorenzo-Cáceres, M. Dietrich, N. V. Efimova, J. Ely, P. A. Evans, A. V. Filippenko, K. Flatland, N. Gehrels, S. Geier, J. M. Gelbord, L. Gonzalez, V. Gorjian, C. J. Grier, D. Grupe, P. B. Hall, S. Hicks, D. Horenstein, T. Hutchison, M. Im, J. J. Jensen, M. D. Joner, J. Jones, J. Kaastra, S. Kaspi, B. C. Kelly, J. A. Kennea, S. C. Kim, M. Kim, S. A. Klimanov, K. T. Korista, G. A. Kriss, J. C. Lee, D. C. Leonard, P. Lira, F. MacInnis, E. R. Manne-Nicholas, S. Mathur, I. M. McHardy, C. Montouri, R. Musso, S. V. Nazarov, R. P. Norris, J. A. Nousek, D. N. Okhmat, A. Pancoast, J. R. Parks, L. Pei, R. W. Pogge, J.-U. Pott, S. E. Rafter, H.-W. Rix, D. A. Saylor, J. S. Schimoia, K. Schnülle, S. G. Sergeev, M. H. Siegel, M. Spencer, H.-I. Sung, K. G. Teems, C. S. Turner, P. Uttley, M. Vestergaard, C. Villforth, Y. Weiss, J.-H. Woo, H. Yan, and S. Young, W. Zheng, Y. Zu   +92 more
openaire   +7 more sources

Continuum Reverberation Mapping of Mrk 876 over Three Years with Remote Robotic Observatories

The Astrophysical Journal, 2023
Continuum reverberation mapping probes the size scale of the optical continuum-emitting region in active galactic nuclei (AGN). Through 3 yr of multiwavelength photometric monitoring in the optical with robotic observatories, we perform continuum ...
Jake A. Miller, Edward M. Cackett, Michael R. Goad, Keith Horne, Aaron J. Barth, Encarni Romero-Colmenero, Michael Fausnaugh, Jonathan Gelbord, Kirk T. Korista, Hermine Landt, Tommaso Treu, Hartmut Winkler   +11 more
doaj   +1 more source

Revisiting the Dust Torus Size–Luminosity Relation Based on a Uniform Reverberation-mapping Analysis [PDF]

Astrophysical Journal
We investigate the torus size–luminosity relation of Type 1 active galactic nuclei (AGNs) based on the reverberation-mapping analysis using the light curves of the optical continuum and the IR continuum obtained with the W1 and W2 bands of the Wide-field
A. Mandal, Jong-Hak Woo, Shu Wang, S. Rakshit, Hojin Cho, D. Son, C. .. Stalin   +6 more
semanticscholar   +1 more source

Iron line reverberation mapping in Ghasemi-Nodehi–Bambi background

European Physical Journal C: Particles and Fields, 2020
The reverberation associated with the iron line is the time lag between direct photons from the corona and the photons reflected from the disk. The resulting line spectrum is called the 2D transfer function.
M. Ghasemi-Nodehi
doaj   +1 more source

Investigating the Impact of Vertically Extended Coronae on X-Ray Reverberation Mapping

The Astrophysical Journal, 2023
Accreting black holes commonly exhibit hard X-ray emission, originating from a region of hot plasma near the central engine referred to as the corona. The origin and geometry of the corona are poorly understood, and models invoking either inflowing or ...
Matteo Lucchini, Guglielmo Mastroserio, Jingyi Wang, Erin Kara, Adam Ingram, Javier Garcia, Thomas Dauser, Michiel van der Klis, Ole König, Collin Lewin, Edward Nathan, Christos Panagiotou   +11 more
doaj   +1 more source

Revisiting the Hβ Size–Luminosity Relation Using a Uniform Reverberation-mapping Analysis [PDF]

Astrophysical Journal Supplement Series
We revisit the relation between active galactic nucleus (AGN) broad-line region (BLR) size and luminosity by conducting a uniform Hβ reverberation-mapping analysis for 212 AGNs with archival light curves.
Shu Wang, Jong-Hak Woo
semanticscholar   +1 more source

Velocity-resolved Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 4151 during Outburst Stage. II. Results of Four Seasons of Observation [PDF]

Astrophysical Journal
We present the results of a four-year velocity-resolved reverberation mapping (RM) campaign of the changing-look active galactic nucleus (CL-AGN) NGC 4151 during its outburst phase.
H. Feng, Sha-Sha Li, J. Bai, H. T. Liu, K. Lu, Yuxuan Pang, Mouyuan Sun, Jianguo Wang, Yang-Wei Zhang, Shuying Zhou   +9 more
semanticscholar   +1 more source

BROADBAND PHOTOMETRIC REVERBERATION MAPPING OF NGC 4395 [PDF]

The Astrophysical Journal, 2012
We present results of broad band photometric reverberation mapping (RM) to measure the radius of the broad line region, and subsequently the black hole mass (M$_{\rm BH}$), in the nearby, low luminosity active galactic nuclei (AGN) NGC 4395. Using the Wise Observatory's 1m telescope equipped with the SDSS g$'$, r$'$ and i$'$ broad band filters, we ...
Haim Edri, Stephen E. Rafter, Doron Chelouche, Shai Kaspi, Ehud Behar   +4 more
openaire   +2 more sources