Questions tagged [ligo]

Questions about the Laser Interferometer Gravitational-Wave Observatory (LIGO), a large-scale physics experiment and observatory to detect cosmic gravitational waves.

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1answer
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Can Gravitational astronomy look beyond the CMB?

In another question dealing with the earliest explored phenomenon in the Universe the observing limit of the CMB was mentioned. Prior to CMB the Universe was opaque to photons, I believe. I'm ...
3
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1answer
117 views

Which things can LIGO see that LISA can't, and vice-versa?

CNET's Astronomers discover two ferociously fast stars locked in a death spiral quotes Kevin Burdge, lead author on the new paper in Nature General relativistic orbital decay in a seven-minute-...
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2answers
360 views

Would LIGO Detect Head-On Collision?

Assume two black holes collide head-on. In other words, they were not orbiting one another before the collision. I know this is unlikely. Further assume that their sizes and distance from Earth are ...
3
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2answers
651 views

LIGO gravitational wave chirp signal frequency

This question is about the LIGO gravitational wave signals' frequency. The signals start from about 35 Hz to peak at about 250 Hz, giving evidence of gravitational waves. The question is about the ...
6
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2answers
504 views

Does LIGO have a blind spot?

If I understand the principle of operation of operation of LIGO, it detects relative distortions of the two perpendicular arms. So if both arms are distorted the same way, nothing would be spotted. ...
34
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7answers
7k views

What did LIGO Actually See? (Gravitational waves discovery)

I am trying to find an original video/image of what LIGO actually saw, but all I can find is artist renditions of gravitational waves.
2
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5answers
1k views

Gravitational wave detection time difference between LIGO Livingston and LIGO Hanford

Quote from LIGO's news release: By looking at the time of arrival of the signals—the detector in Livingston recorded the event 7 milliseconds before the detector in Hanford—scientists can say that ...