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Related papers: Stacked reverberation lags at high redshift

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Reverberation mapping is the leading technique used to measure direct black hole masses outside of the local Universe. Additionally, reverberation measurements calibrate secondary mass-scaling relations used to estimate single-epoch virial…

We present Reverberation Mapping (RM) results for 17 high-redshift, high-luminosity quasars with good quality R-band and emission line light curves. We are able to measure statistically significant lags for Ly_alpha (11 objects), SiIV (5…

Reverberation mapping offers one of the best techniques for studying the inner regions of QSOs. It is based on cross-correlating continuum and emission-line light curves. New time-resolved optical surveys will produce well sampled light…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 S. Fine , T. Shanks , S. M. Croom , P. Green , B. C. Kelly , E. Berge , R. Chornock , W. S. Burgett , E. A. Magnier , P. A. Price

Reverberation mapping (RM) measurements of broad-line region (BLR) lags in z>0.3 quasars are important for directly measuring black hole masses in these distant objects, but so far there have been limited attempts and success given the…

We present reverberation-mapping lags and black-hole mass measurements using the CIV 1549 broad emission line from a sample of 349 quasars monitored as a part of the Sloan Digital Sky Survey Reverberation Mapping Project. Our data span four…

So far the masses of about 50 active galactic nuclei have been measured through the reverberation mapping technique (RM). Most measurements have been performed for objects of moderate luminosity and redshift, based on H$\beta$, which is…

Astrophysics of Galaxies · Physics 2015-06-22 D. Trevese , M. Perna , F. Vagnetti , F. G. Saturni , M. Dadina

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. Continuum and line emission flux variability is observed in…

Astrophysics of Galaxies · Physics 2018-01-12 Paulina Lira , Ismael Botti , Shai Kaspi , Hagai Netzer

We present reverberation mapping results for the MgII 2800 A broad emission line in a sample of 193 quasars at 0.35<z<1.7 with photometric and spectroscopic monitoring observations from the Sloan Digital Sky Survey Reverberation Mapping…

Reverberation mapping (RM) of active galactic nuclei (AGNs) has been used over the past three decades to determine AGN broad-line region (BLR) sizes and central black-hole masses, and their relations with the AGN's luminosity. Until…

Astrophysics of Galaxies · Physics 2021-06-03 Shai Kaspi , W. N. Brandt , Dan Maoz , Hagai Netzer , Donald P. Schneider , Ohad Shemmer , C. J. Grier

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

Reverberation mapping of nearby active galactic nuclei has led to estimates of broad-line-region (BLR) sizes and central-object masses for some 37 objects to date. However, successful reverberation mapping has yet to be performed for…

Astrophysics · Physics 2011-02-11 Shai Kaspi , W. N. Brandt , Dan Maoz , Hagai Netzer , Donald P. Schneider , Ohad Shemmer

Reverberation-mapping-based scaling relations are often used to estimate the masses of black holes from single-epoch spectra of AGN. While the radius-luminosity relation that is the basis of these scaling relations is determined using…

Astrophysics of Galaxies · Physics 2015-09-16 E. M. Cackett , K. Gultekin , M. C. Bentz , M. M. Fausnaugh , B. M. Peterson , J. Troyer , M. Vestergaard

We present the first results from long-term high-cadence spectroscopic monitoring of 15 PG quasars with relatively strong Fe II emission as a part of a broader reverberation mapping campaign performed with the Calar Alto Observatory 2.2m…

We present a reverberation mapping (RM) experiment that combines broad- and intermediate-band photometry; it is the first such attempt targeting a sample of 13 quasars at $0.2<z<0.9$. The quasars were selected to have strong H$\alpha$ or…

Astrophysics of Galaxies · Physics 2016-03-09 Linhua Jiang , Yue Shen , Ian D. McGreer , Xiaohui Fan , Eric Morganson , Rogier A. Windhorst

Single-epoch virial black hole (BH) mass estimators utilizing broad emission lines have been routinely applied to high-redshift quasars to estimate their BH masses. Depending on the redshift, different line estimators (Halpha, Hbeta, MgII,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Yue Shen , Xin Liu

We present composite broad-line region (BLR) reverberation-mapping lag measurements for \halpha, \hbeta, \HeII\,$\lambda4686$ and \MgII\ for a sample of 144, $z\lesssim 1$ quasars from the Sloan Digital Sky Survey Reverberation Mapping…

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