Continuum Reverberation Mapping of AGN Accretion Disks [PDF]
Frontiers in Astronomy and Space Sciences, 2017 We show recent detections of inter-band continuum lags in three AGN (NGC 5548, NGC 2617, and MCG+08-11-011), which provide new constraints on the temperature profiles and absolute sizes of the accretion disks.
Michael M. Fausnaugh +8 more
doaj +3 more sources
Reverberation Mapping of High-z, High-Luminosity Quasars
Frontiers in Astronomy and Space Sciences, 2018 We present Reverberation Mapping results after monitoring a sample of 17 high-z, high-luminosity quasars for more than 10 years using photometric and spectroscopic capabilities.
Paulina Lira +4 more
doaj +3 more sources
Multi-timescale reverberation mapping of Mrk 335 [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Time lags due to X-ray reverberation have been detected in several Seyfert galaxies. The different traveltime between reflected and directly observed rays naturally causes this type of lag, which depends directly on the light-crossing time-scale of the system and hence scales with the mass of the central black hole. Featureless ‘
Adam Ingram +2 more
exaly +4 more sources
Spectroastrometry and Reverberation Mapping of Active Galactic Nuclei. II. Measuring Geometric Distances and Black Hole Masses of Four Nearby Quasars [PDF]
The Astrophysical JournalThe geometric distances of active galactic nuclei (AGNs) are challenging to measure because of their exceptionally compact structure, yet vast cosmic distances.
Yan-Rong Li +38 more
doaj +2 more sources
Reverberation Mapping of Lamppost and Wind Structures in Accretion Thin Disks [PDF]
The Astrophysical JournalTo address the discrepancy where disk sizes exceed those predicted by standard models, we explore two extensions to disk size estimates within the UV/optical wavelength range: disk winds and color correction.
James Hung-Hsu Chan +3 more
doaj +2 more sources
Probing the C iv Continuum Size–Luminosity Relation in Active Galactic Nuclei with Photometric Reverberation Mapping [PDF]
The Astrophysical Journal LettersReverberation mapping accurately determines virial black hole masses only for redshifts z < 0.2 by utilizing the relationship between the H β broad-line region (BLR) size and the 5100 Å continuum luminosity established with ∼200 active galactic nuclei ...
Swayamtrupta Panda +3 more
doaj +2 more sources
The Ultraviolet/Optical Continuum Reverberation Mapping of Eight Active Galactic Nuclei with Swift: Further Evidence for the Outer Component [PDF]
The Astrophysical JournalIn our previous work, we applied the ICCF-Cut method to the continuum reverberation mapping (CRM) of six active galactic nuclei (AGNs) based on the published Swift data.
Chi-Zhuo Wang +5 more
doaj +2 more sources
GEOMETRIC AND DYNAMICAL MODELS OF REVERBERATION MAPPING DATA [PDF]
Astrophysical Journal, 2011 16 pages, 16 Figures, Accepted to ...
Tommaso Treu +2 more
exaly +3 more sources
The SDSS-V Black Hole Mapper Reverberation Mapping Project: C iv Broad Absorption Line Acceleration in the Quasar SBS 1408+544 [PDF]
The Astrophysical JournalWe present the results of an investigation of a highly variable C iv broad absorption line (BAL) feature in spectra of the quasar SBS 1408+544 ( z = 2.337) that shows a significant shift in velocity over time.
Robert Wheatley +22 more
doaj +2 more sources
The Disk Reverberation Mapping of the Lensed Quasar Q0957+561 [PDF]
The Astrophysical JournalThe measurement of continuum time lags in lensed quasars can effectively probe the accretion physics of quasars. This is because microlensing observations of lensed quasars can provide constraints on the half-light radii of quasar accretion disks.
Marcin Marculewicz +3 more
doaj +2 more sources