Fermi-LAT Gamma-Ray Pulsars (FGRP)
Bernd Machenschalk
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4 Nov 2011 13:01:21 UTC
Topic 196043
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Fermi-LAT Gamma-Ray Pulsars (FGRP)
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Very intersting.
Was the discovery of the nine other pulsars made with the same algorithm, that we use in our LAT application?
RE: Was the discovery of
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Yep, the very same. Actually the same application, just 'ported' to BOINC.
BM
BM
That means, we have have
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That means, we have have great chances for a discovery.
GREAT!!!!
Well* congratulations to one
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Well* congratulations to one and all. I see Dr's Aulbert and Fehrmann ( aka Atlas Masters of Disaster ) got a mention in the paper too. I reckon it's real cool that the Fermi detector measures single photons. This search seems a bit like a blind man trying to locate some fluctuating radioactive source just by listening to Geiger counter clicks when you point it this way and that - inside a busy nuclear reactor that is! It really illustrates what a narrow part of the full electromagnetic spectrum 'human' light really is, and what a great feast of knowledge can ensue when that's broadened. I note that some gamma pulsars have pulsed radio emission too, my guess is that would be a fascinating intersection for observers and theorists alike.
Two thumbs up !! :-)
Cheers, Mike.
* putting aside the weird Beiber reference ( gag ... )
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
I noticed the article on Ars
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I noticed the article on Ars linked to this great Q&A with Bruce Allen:
http://www.zopost.com/03-Nov-2011/nine_new_gamma_pulsars_brings_known_gamma-ray
RE: I noticed the article
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Well found! :-)
Of interest is the mention of the Fermi satellite having onboard GPS. So that effectively implies that GR is used ( accounting for our local gravity field ) to get the timing of the gamma photons right. Year in and year out. And one can 'invert the question' and map our local spacetime using the distant pulsars as the timing reference. Cool! I'm guessing that so far all agrees as per Einstein .....
Cheers, Mike.
( edit ) And if I read it right : they've used Fermi as one end of a co-incidence detection scheme to crosscheck matters.
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