[ExI] Gravitational Waves Detected By LIGO!

[Tomaz Kristan]

Spike, my friend, I want you to be around for the next one billion years
and more.

But this is not the point here. We should already hear from other
Sagittariuses as well. One hundred million or even a billion of them, which
are as close or closer than those two black holes we talk about. Those two
with the combined mass of much less than 100 Suns.

While those "Sags" are to a many million times heavier than that. Each. And
should be much noisier when colliding even with a small black hole.

We might wait for our Sagittarius to swallow something big. It should
happen every 1000 years or so. But we have a billion of them around and
there should be a lot of those events every day, every hour.

Where they are? Why LIGO does not detect those?




On Sat, Feb 13, 2016 at 3:13 PM, spike <spike66 at att.net> wrote:

>
>
>
>
> *From:* extropy-chat [mailto:extropy-chat-bounces at lists.extropy.org] *On
> Behalf Of *Tomaz Kristan
> *Sent:* Saturday, February 13, 2016 5:35 AM
> *To:* ExI chat list <extropy-chat at lists.extropy.org>
> *Subject:* Re: [ExI] Gravitational Waves Detected By LIGO!
>
>
>
> Anders,
>
>
>
> >…How many super-massive black holes like our own Sagittarius A we have
> inside the 10^9 ly radius sphere around us? From one hundred million to one
> billion, there about. Each having mass of about 10 million Suns or 1
> million small black holes.
>
>
>
> >…How often do small black holes rain onto those big ones? I don't know,
> but at least 10^14 of them have already fallen, apparently. Otherwise we
> would not have so many so big supermassives. That is at least 10000 per
> year for the entire history after the Big Bang.
>
>
>
> >…10000 per year, but LIGO does not hear that noise? But caught a much
> smaller collision?
>
>
>
> >…I find it difficult to believe this… Tomaz
>
>
>
>
>
> Next time a black hole does drop into our own Sag A, we will detect it,
> assuming the detector is still around.  That black hole has already cleaned
> up the area around it, so having something new fall in requires just
> exactly the right encounter between two stars farther out.  There is no
> reason to think this happens very often.
>
>
>
> We can calculate and estimate it however, or better yet, create a
> simulation.  We can use that trick I developed for GIMPS to estimate the
> time between the next similar event.  I am taking good care of my health,
> hoping to live long enough to see the next one.
>
>
>
> spike
>
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>


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