Thermal noise dependence on equatorial losses in the mirrors of an interferometric gravitational wave detector

2004 ◽  
Vol 333 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
S. Gras ◽  
D.G. Blair ◽  
L. Ju
Keyword(s):  
Gravitational Wave ◽  
Thermal Noise ◽  
Gravitational Wave Detector ◽  
Wave Detector

scholarly journals The Prospects for High Sensitivity Gravitational Antennae

1974 ◽  
Vol 64 ◽  
pp. 28-34
Author(s):  
V. B. Braginsky
Keyword(s):  
Black Hole ◽  
Gravitational Wave ◽  
Thermal Noise ◽  
Galactic Center ◽  
Detection System ◽  
High Sensitivity ◽  
Gravitational Wave Detector ◽  
Wave Detector ◽  
Nearby Galaxies

The sensitivity of a resonant gravitational wave detector which is necessary for the detection of pulses from asymmetric stellar collapses or from black-hole collisions in nearby galaxies is examined. Limitations on this sensitivity due to the resonating quality of the detector, thermal noise, and reaction of the detection system upon the detector are studied. No severe difficulties for the detection of the above-mentioned pulses are expected. For the detection of pulses from a cluster at the galactic center, a nonresonant system based on Doppler ranging to a drag-free satellite would be more appropriate. At present the sensitivity of Doppler-ranging is still two orders of magnitude below the requirements.

scholarly journals Gravitational wave detector OGRAN as multi-messenger project of RAS-MSU

2020 ◽  
Vol 35 (02n03) ◽  
pp. 2040007
Author(s):  
V. N. Rudenko ◽  
Yu. M. Gavrilyuk ◽  
A. V. Gusev ◽  
D. P. Krichevskiy ◽  
S. I. Oreshkin ◽  
...  
Keyword(s):  
Data Analysis ◽  
Gravitational Wave ◽  
Detection Probability ◽  
Thermal Noise ◽  
Narrow Band ◽  
Neutrino Telescope ◽  
Gravitational Wave Detector ◽  
Wave Detector ◽  
Deep Underground ◽  
The Right

Modernized version of the combined opto-acoustical gravitational wave detector OGRAN is presented. Located in the deep underground of the Baksan Neutrino Observatory this setup is aimed to work on the program of collapsing stars searching for in multi-channel manner with the neutrino telescope BUST. The both instruments have the sensitivity allowing a registration of collapses in our Galaxy as rare events with the estimated probability [Formula: see text] year[Formula: see text]. The OGRAN narrow band sensitivity at the kilohertz frequency is limited by its acoustical mode thermal noise achieving [Formula: see text] in term of metric perturbations. A possible algorithm of the joint data analysis for the both instruments is developed and resulting formulae of the right detection probability are given. A future increasing of the OGRAN sensitivity associated with the moderate cooling (nitrogen temperature) of the acoustical mode is also discussed.

scholarly journals Experimental upper limit on the estimated thermal noise at low frequencies in a gravitational wave detector

2007 ◽  
Vol 76 (12) ◽  
Author(s):  
A. Di Virgilio ◽  
S. Bigotta ◽  
L. Barsotti ◽  
S. Braccini ◽  
C. Bradaschia ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Thermal Noise ◽  
Gravitational Wave Detector ◽  
Low Frequencies ◽  
Wave Detector ◽  
Upper Limit

Thermal noise caused by an inhomogeneous loss in the mirrors used in the gravitational wave detector

2002 ◽  
Vol 305 (1-2) ◽  
pp. 18-25 ◽  
Author(s):  
Kazuhiro Yamamoto ◽  
Masaki Ando ◽  
Keita Kawabe ◽  
Kimio Tsubono
Keyword(s):  
Gravitational Wave ◽  
Thermal Noise ◽  
Gravitational Wave Detector ◽  
Wave Detector

scholarly journals China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Keyword(s):  
Gravitational Wave ◽  
Hubble Constant ◽  
Gravitational Wave Detector ◽  
Expanding Universe ◽  
Satellite Mission ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wave Detector ◽  
Wave Antenna ◽  
Gravitational Wave Antenna

AbstractIn this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper.

A noise model for the Brazilian gravitational wave detector  Mario Schenberg 

2004 ◽  
Vol 21 (5) ◽  
pp. S1107-S1111 ◽  
Author(s):  
Carlos Frajuca ◽  
Kilder L Ribeiro ◽  
Luiz A Andrade ◽  
Odylio D Aguiar ◽  
Nadja S Magalhães ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Noise Model ◽  
Gravitational Wave Detector ◽  
Wave Detector
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