Questions tagged [gravitational-wave-detectors]
A gravitational wave detector is an instrument built for the purpose of direct detection of gravitational waves, most notably, LIGO, Virgo, and the future space-based detector LISA.
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What is the difference between active and passive isolation in gravitational wave detectors?
GWDs are very sensitive instruments on the ground. To reduce seismic noise, core and auxiliary optics in GWDs are suspended. There are two main suspension techniques. One is active isolation and the ...
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Feedback control system in gravitational wave detectors
I am preparing for a seminar on ground-based gravitational wave detectors. One topic I have very little idea about is feedback control systems. I have a basic knowledge of it, but I need to read some ...
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Reduced mass vs. Total mass in gravitational wave estimations
When people do back of the envelope calculations about GW physics, they always use a very abstract mass scale $M$ and I want to figure out the identity of said scale for different relevant magnitudes ...
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Can either of LISA, NanoGrav or LIGO measure the polarization of gravitational wave background (GWB)?
Polarization in GWB should carry as much important information as in CMB. However, I've done some superfluous literature research and found little discussion. Is there any planned project for ...
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What type of detail and imaging might we be able to achieve with mature gravitational wave detector arrays?
With the success of LIGO and considering the types of imaging we're able to do with distributed arrays of radio telescopes, what level of detail would we be able to achieve were we to build arrays of ...
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Detecting gravitational wave polarization
We know that in TT gauge frame the gravitational wave has two polarization components, and the actual gravitational wave we are detecting is a linear combination of those two states , now a natural ...
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What is a complete book for Gravitational Wave Detectors
I would like to find textbook/lecture notes which include the following:
explain how gravitational waves are produced
the physical principles underlying detectors of gravitational waves (particulary ...
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What is the significance of a constant, $C$ in a damped cosine function? [closed]
I've used to fit some scattered points by an equation of damped cosine with a constant function ($(A\cos({kx})+C)e^{-Bx}$) and that equation fits better than only a damped cosine $A\cos({kx})e^{-Bx}$, ...
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Gravitational Waves - Are all detectors finding the same gravitational waves?
I read that there have been approximately 90 recorded cases of gravitational waves. Have the 4 different gravitational wave detectors agreed on specific individual recordings or have all 90 cases been ...
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Searching for an "intuitive" explanation about how gravitational waves can be detected by a laser interferometer like LIGO
Since LIGO's first detection of gravitational waves, I have been searching for an intuitive way -as long as intuition can be useful in relativity, which often it isn't- to understand how the detector ...
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LIGO et al: Is it possible to estimate the frequency of GW+EM detections?
In the past few years LIGO and VIRGO have detected a multitude of gravitational events. As far as I know however only GW170817 had a verifiable EM counterpart. Shouldn't it be possible, based on ...
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How can we calculate formula for effective coupling constant in spin independent direct detection of dark matter?
At tree level, the spin independent
(SI) direct-detection cross section includes effective coupling constant. How to calculate effective coupling constant?
There is always a mandelstram variable in it....
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Claims of detection of gravitational waves with an accelerometer
Is this claim:
https://earthscience.stackexchange.com/q/21236/
of detection of gravitational waves with accelerometers legitimate?
I do not know much about this, but given how gravitational waves form ...
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Could LIGO detect an Alcubierre drive being used within 10 light-years of the Solar system? [closed]
Maybe this question is too speculative... But is it possible that LIGO would detect the ramp-up and ramp-down of an Alcubierre drive being used within 10 light-years of the Solar system? Also, if the ...
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How does LIGO work?
LIGO is described as working as an interferometer, like a Michelson-Morley interferometer but with many reflections along the arms to increase the sensitivity. In MMs work it was assumed that the ...
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