Results 31 to 40 of about 46,475 (334)
Tracing the reverberation lag in the hard state of black hole X-ray binaries [PDF]
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.+3 more
core +2 more sources
TOPOLOGICAL REVERBERATIONS IN FLAT SPACE–TIMES [PDF]
We study the role played by multiply-connectedness in the time evolution of the energy E(t) of a radiating system that lies in static flat space–time manifolds ℳ4 whose t= const spacelike sections ℳ3 are compact in at least one spatial direction.
Marcelo J. Rebouças+3 more
openaire +3 more sources
A Revised Broad-Line Region Radius and Black Hole Mass for the Narrow-Line Seyfert 1 NGC 4051 [PDF]
We present the first results from a high sampling rate, multi-month reverberation mapping campaign undertaken primarily at MDM Observatory with supporting observations from telescopes around the world.
A. E. Watkins+81 more
core +5 more sources
Blind estimation of reverberation time in classrooms and hospital wards [PDF]
This paper investigates blind Reverberation Time (RT) estimation in occupied classrooms and hospital wards. Measurements are usually made while these spaces are unoccupied for logistical reasons.
Conetta, R+5 more
core +2 more sources
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
Experimental Study of the Sound Emission Pattern Based on Acoustic Characteristics in Typical Industrial Manufactories in Hamadan, Iran [PDF]
Background and Objective: Noise pollution inside buildings is caused by frequent sound reflection from their inner surfaces. The purpose of this study is to experimentally study the sound emission pattern based on acoustic characteristics in typical ...
Seyedeh Elahe Hosseini+3 more
doaj
Simultaneous spectral and reverberation modelling of relativistic reflection in Mrk 335 [PDF]
We present an X-ray spectral and timing model to investigate the broad and variable iron line seen in the high flux state of Mrk 335. The model consists of a variable X-ray source positioned along the rotation axis of the black hole that illuminates the ...
Chainakun, P., Young, A. J.
core +2 more sources
This paper discusses the concept of the reverberation radius, also known as critical distance, in rooms with non-uniformly distributed sound absorption.
Higini ARAU-PUCHADES, Umberto BERARDI
doaj +1 more source
Study on Doppler characteristics of underwater bistatic reverberation [PDF]
Active sonar has two typical types of geometry configuration respectively named monostatic and bistatic like a radar system. In the monostatic scenario, co-located underwater transducers transmit and receive sound energy, while in a bistatic situation ...
Wang Fangyong+2 more
doaj +1 more source
Simulations of the OzDES AGN Reverberation Mapping Project [PDF]
As part of the OzDES spectroscopic survey we are carrying out a large scale reverberation mapping study of $\sim$500 quasars over five years in the 30 deg$^2$ area of the Dark Energy Survey (DES) supernova fields.
Banerji, Manda+13 more
core +2 more sources