22 candidate GW events within the first 4 month of O3

astro-marwil
astro-marwil
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Topic 219394

Hallo!

New note from LIGO.

Good success and well within expectations.

How long will it take, to put them from candidate status to real event status? How many will be an artefact?

 

Kind regards and happy crunching

Martin

Mike Hewson
Mike Hewson
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I think there's some talk

I think there's some talk that the number of black hole mergers has been underestimated ie. if those 18 candidates for BH-BH become confirmed then that's rather more than the handful per year talked of a few years ago. Well, that's science of course : you look and you see. One line of thinking poses that larger groupings of BHs might abound eg. triplets and that's why we may be seeing all this merging. So how many black holes are out & about, if we only know of them via collisions ?! We live in exciting times ..... :-))

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

DanNeely
DanNeely
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I thought the few

I thought the few detections/year estimate was for the hardware at the sensitivity when they made the initial detections; with 1 or 2 a week being expected with the current level of upgrades.

Mike Hewson
Mike Hewson
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I should have quoted the

I should have quoted the source of my information : To Make Two Black Holes Collide, Try Three & the article it draws upon.

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

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