Screensaver symbols?
12 Dec 2006 4:17:36 UTC
Topic 192182
(moderation:
What are the concentric circles with lines through them and the small colorful right angles that are rotating around with the screensaver? Are they pointing out something in the star map?
Thanks.
Screensaver symbols?
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Einstein@Home Starspere Screensaver
Thanks!
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Thanks!
Why is the current position
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Why is the current position in the sky which is being searched far away from the band of known pulsars? Why don't they focus the search in the area of the pulsars?
RE: Why is the current
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It is not like electromagnetic telescopes. An individual gravity wave IFO has a sensitivity much the same over very broad angles ( with a couple of nulls ). That's why several IFO's are preferred, with a celestial direction to source inferred by differing arrival times of the same signal. The more IFO's the better. You don't get to find the direction, if any, until after you've done the crunching. The are hoping to detect known pulsars, of course, but if you've got a gadget with a wide view, why limit it?
Also there is linkage to gamma ray burst ( GRB ) events identified by ( mostly ) satellite observatories, so that data blocks for the LIGO's can be time stamped for later searching. This gives some hope of correlation. Gravity waves and gammas are hypothecated to be both emitted by (A) non-axisymmetric fireballs of some supernovae producing black holes and (B) final moments of inspiral mergers, the gammas coming from just outside of the event horizon where huge amounts of matter get smeared into a torus immediately prior to the 'swallow'.
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
Mike -- From what you said
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Mike --
From what you said in your posting, the recent postings in the news about a black hole "devouring" a star should have created some very interesting wave fronts and patterns for this project, yet I've seen nothing to indicate that on the various message boards.
Do you know anything about this ???
If I've lived this long - I gotta be that old!