Results 41 to 50 of about 95,587 (363)

Reverberation Mapping of Luminous Quasars at High z [PDF]

Astrophysical Journal, 2018
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 Lyα (11 objects), Si iv (5 objects), C iv (11 ...
P. Lira, S. Kaspi, H. Netzer, I. Botti, N. Morrell, J. Mejía-restrepo, P. Sánchez-Sáez, J. Martínez-Palomera, P. López   +8 more
semanticscholar   +1 more source

Supermassive Black Holes in Active Galactic Nuclei. I. The Consistency of Black Hole Masses in Quiescent and Active Galaxies [PDF]

, 2001
We report the first results of a program to measure accurate stellar velocity dispersions in the bulges of the host galaxies of active galactic nuclei (AGNs) for which accurate black hole (BH) masses have been determined via reverberation mapping.
Amri Wandel, Bender R., Bender R., Bradley M. Peterson, Charles L. Joseph, David Merritt, Krolik J., Laura Ferrarese, Richard W. Pogge, Richstone D., Silk J., Wandel A.   +11 more
core   +2 more sources

The Sloan Digital Sky Survey Reverberation Mapping Project: Hα and Hβ Reverberation Measurements from First-year Spectroscopy and Photometry [PDF]

, 2017
We present reverberation mapping results from the first year of combined spectroscopic and photometric observations of the Sloan Digital Sky Survey Reverberation Mapping Project.
C. Grier, J. Trump, Yue Shen, K. Horne, K. Kinemuchi, I. McGreer, D. Starkey, W. Brandt, P. Hall, C. Kochanek, Yuguang Chen, K. Denney, J. Greene, L. Ho, Y. Homayouni, J. I. Li, L. Pei, B. Peterson, P. Petitjean, D. Schneider, Mouyuan Sun, Y. Alsayyad, D. Bizyaev, J. Brinkmann, J. Brownstein, K. Bundy, K. Dawson, S. Eftekharzadeh, J. Fernández-Trincado, Yang Gao, T. Hutchinson, S. Jia, Linhua Jiang, D. Oravetz, K. Pan, I. Pâris, K. Ponder, C. Peters, Jesse Rogerson, A. Simmons, Robyn N. Smith, Ran Wang   +41 more
semanticscholar   +1 more source

Velocity-resolved Reverberation Mapping of Five Bright Seyfert 1 Galaxies [PDF]

Astrophysical Journal, 2018
We present the first results from a reverberation-mapping campaign undertaken during the first half of 2012, with additional data on one active galactic nucleus (AGN) (NGC 3227) from a 2014 campaign.
G. D. Rosa, G. D. Rosa, M. Fausnaugh, C. Grier, C. Grier, B. Peterson, B. Peterson, K. Denney, K. Horne, M. Bentz, S. Ciroi, E. Bontà, E. Bontà, M. D. Joner, S. Kaspi, S. Kaspi, C. Kochanek, R. Pogge, S. Sergeev, M. Vestergaard, M. Vestergaard, S. Adams, S. Adams, J. Antognini, J. Antognini, C. Salvo, E. Armstrong, E. Armstrong, J. Bae, J. Bae, A. Barth, T. Beatty, T. Beatty, A. Bhattacharjee, A. Bhattacharjee, G. Borman, T. Boroson, M. Bottorff, J. E. Brown, J. Brown, M. Brotherton, C. Coker, C. Coker, C. Clanton, C. Clanton, V. Cracco, S. Crawford, K. Croxall, S. Eftekharzadeh, M. Eracleous, S. Fiorenza, A. Frassati, K. Hawkins, K. Hawkins, C. Henderson, C. Henderson, T. Holoien, T. Hutchison, T. Hutchison, J. Kellar, E. Kilerci-Eser, E. Kilerci-Eser, Sujin Kim, A. King, G. L. Mura, C. D. Laney, C. D. Laney, Miao Li, C. Lochhaas, Zhiyuan Ma, F. Macinnis, E. Manne-Nicholas, M. Mason, S. McGraw, S. McGraw, K. Mogren, C. Montouri, J. Moody, A. Mosquera, D. Mudd, D. Mudd, R. Musso, S. Nazarov, M. L. Nguyen, P. Ochner, D. N. Okhmat, C. Onken, B. Ou-Yang, A. Pancoast, L. Pei, L. Pei, M. Penny, R. Poleski, E. Portaluri, E. Portaluri, J. Prieto, A. Price-Whelan, A. Price-Whelan, N. Pulatova, S. Rafter, R. Roettenbacher, R. Roettenbacher, E. Romero-Colmenero, J. Runnoe, J. Runnoe, J. Schimoia, B. Shappee, B. Shappee, N. Sherf, G. Simonian, A. Siviero, D. Skowron, D. Skowron, J. Skowron, J. Skowron, G. Somers, G. Somers, M. Spencer, D. Starkey, D. Stevens, R. Stoll, E. Tamajo, J. Tayar, J. Saders, J. Saders, S. Valenti, S. Villanueva, C. Villforth, C. Villforth, Y. Weiss, H. Winkler, J. Zastrow, Wei Zhu, Y. Zu, Y. Zu   +134 more
semanticscholar   +1 more source

Predicting theater chair absorption from reverberation chamber measurements - comment [PDF]

, 1993
The relationship between the measured acoustic absorption coefficient of an array of theater chairs and the ratio of the perimeter length to plan area of the array is considered.
Davies, WJ, Lam, YW, Orlowski, RJ
core   +2 more sources

Effects of Varying Reverberation on Music Perception for Young Normal-Hearing and Old Hearing-Impaired Listeners

Trends in Hearing, 2018
Reverberation enhances music perception and is one of the most important acoustic factors in auditorium design. However, previous research on reverberant music perception has focused on young normal-hearing (YNH) listeners.
Paul N. Reinhart, Pamela E. Souza
doaj   +1 more source

Tracing the reverberation lag in the hard state of black hole X-ray binaries [PDF]

, 2015
We report results obtained from a systematic analysis of X-ray lags in a sample of black hole X-ray binaries, with the aim of assessing the presence of reverberation lags and studying their evolution during outburst.
De Marco, B., Muñoz-Darias, T., Nandra, K., Ponti, G.   +3 more
core   +2 more sources

On reverberation mapping lag uncertainties [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We broadly explore the effects of systematic errors on reverberation mapping lag uncertainty estimates from javelin and the interpolated cross-correlation function (ICCF) method.
Z. Yu, C. Kochanek, B. Peterson, B. Peterson, Y. Zu, W. Brandt, E. Cackett, M. Fausnaugh, I. McHardy   +8 more
semanticscholar   +1 more source

Densely Connected Networks with Multiple Features for Classifying Sound Signals with Reverberation

Sensors, 2023
In indoor environments, reverberation can distort the signalseceived by active noise cancelation devices, posing a challenge to sound classification. Therefore, we combined three speech spectral features based on different frequency scales into a densely
Zhuo Chen, Dazhi Gao, Kai Sun, Xiaojing Zhao, Yueqi Yu, Zhennan Wang   +5 more
doaj   +1 more source

The effect of simulated room acoustic parameters on the intelligibility and perceived reverberation of monosyllabic words and sentences.

Journal of the Acoustical Society of America, 2020
Individual acoustic parameters of reverberation have the potential to affect both the intelligibility of speech and the degree of perceived reverberation.
Daniel Fogerty, Ahmed Alghamdi, W. Chan
semanticscholar   +1 more source