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Related papers: A novel reverberation mapping method for blazars

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Photometric reverberation mapping can detect the radial extent of the accretion disc (AD) in Active Galactic Nuclei by measuring the time delays between light curves observed in different continuum bands. Quantifying the constraints on the…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-02 F. Pozo Nuñez , C. Bruckmann , S. Desamutara , B. Czerny , S. Panda , A. P. Lobban , G. Pietrzyński , K. L. Polsterer

As one of the series of papers reporting on a large reverberation mapping campaign of super-Eddington accreting massive black holes (SEAMBHs) in active galactic nuclei (AGNs), we present the results of 10 SEAMBHs monitored spectroscopically…

We have started a long-term reverberation mapping project using the Wyoming Infrared Observatory 2.3 meter telescope titled "Monitoring AGNs with H\beta\ Asymmetry" (MAHA). The motivations of the project are to explore the geometry and…

This contribution briefly reviews the reverberation mapping technique which leads to determination of black hole masses. I focus on the emerging relation between the broad-line region size and the active galactic nucleus (AGN) luminosity,…

Astrophysics · Physics 2007-05-23 Shai Kaspi

We present a new release of the RELTRANS model to fit the complex cross-spectrum of accreting black holes as a function of energy. The model accounts for continuum lags and reverberation lags self-consistently in order to consider the…

We present the variability and time lag measurements of PG 0934+013 based on a photometric and spectroscopic monitoring campaign over a two year period. We obtained 46 epochs of data from the spectroscopic campaign, which was carried out…

Astrophysics of Galaxies · Physics 2017-10-11 S. Park , J. -H. Woo , E. Romero-Colmenero , S. M. Crawford , D. Park , H. Cho , Y. Jeon , C. Choi , A. J. Barth , L. Pei , R. C. Hickox , H. -I. Sung , M. Im

Quasars have been proposed as a new class of standard candles analogous to Supernovae, as their large redshift range and high luminosities make them excellent candidates. Reverberation mapping (RM) method enables to estimate the distance to…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-09 Mary Loli Martínez-Aldama , Bożena Czerny , Damian Kawka , Vladimir Karas , Swayamtrupta Panda , Michal Zajaček , Piotr T. Życki

Reverberation mapping accurately determines virial black hole masses only for redshifts $z <$ 0.2 by utilizing the relationship between the H$\beta$ broad-line region (BLR) size and the 5100 Angstroms continuum luminosity established with…

Astrophysics of Galaxies · Physics 2024-05-21 Swayamtrupta Panda , Francisco Pozo Nuñez , Eduardo Bañados , Jochen Heidt

The central engines of Active Galactic Nuclei (AGNs) are powered by accreting supermassive black holes, and while AGNs are known to play an important role in galaxy evolution, the key physical processes occur on scales that are too small to…

Astrophysics of Galaxies · Physics 2021-06-10 Edward M. Cackett , Misty C. Bentz , Erin Kara

The reverberation mapping (RM) technique has seen wide applications in probing geometry and kinematics of broad-line regions (BLRs) and measuring masses of supermassive black holes (SMBHs) in active galactic nuclei. However, the key…

Astrophysics of Galaxies · Physics 2024-12-17 Yan-Rong Li , Jian-Min Wang

The quasar 3C 273 has been observed with infrared spectroastrometry (SA) on broad Pa$\alpha$ line and optical reverberation mapping (RM) on broad H$\beta$ line. SA delivers information about the angular size and structure of the Pa$\alpha$…

Astrophysics of Galaxies · Physics 2022-03-14 Yan-Rong Li , Jian-Min Wang , Yu-Yang Songsheng , Zhi-Xiang Zhang , Pu Du , Chen Hu , Ming Xiao

The broadening of atomic emission lines by high-velocity motion of gas near accreting supermassive black holes is an observational hallmark of quasars. Observations of broad emission lines could potentially constrain the mechanism for…

Using different kinds of velocity tracers derived from the broad H$\beta$ profile (in the mean or rms spectrum) and the corresponding virial factors $f$, the central supermassive black hole (SMBH) masses ($M_{\rm BH}$) are calculated for a…

Astrophysics of Galaxies · Physics 2020-10-07 Li-Ming Yu , Wei-Hao Bian , Xue-Guang Zhang , Bi-Xuan Zhao , Chan Wang , Xue Ge , Bing-Qian Zhu , Yu-Qin Chen

We present the optical light curve for the gamma-ray blazar PKS 1510-089 with a significant variability of 2.0 mag within about 41 minutes in the R band which is the most violently rapid variability detected in our optical monitoring…

Astrophysics · Physics 2007-05-23 B. Z. Dai , G. Z. Xie , Z. J. Jiang , D. C. Mei

We present the results of a new reverberation mapping campaign for the broad-lined active galactic nucleus (AGN) in the edge-on spiral IC4329A. Monitoring of the optical continuum with $V-$band photometry and broad emission-line flux…

Astrophysics of Galaxies · Physics 2023-02-15 Misty C. Bentz , Christopher A. Onken , Rachel Street , Monica Valluri

We selected a sample of 28 Type 1 AGNs for which a black hole mass has been inferred using the reverberation mapping technique and single epoch scaling relations. All 28 sources show clear evidence of the "Big Blue Bump" in the optical-UV…

High Energy Astrophysical Phenomena · Physics 2020-08-19 Samuele Campitiello , Annalisa Celotti , Gabriele Ghisellini , Tullia Sbarrato

Reverberation mapping technique is an important milestone in AGN demographics, kinematics and the structure of the Broad Line Region (BLR) based on the time-delay response between the continuum and emission line. The time delay is directly…

High Energy Astrophysical Phenomena · Physics 2019-12-05 Swayamtrupta Panda , Mary Loli Martínez-Aldama , Michal Zajaček