Binary Radio Pulsar Search (Arecibo) "BRP4" - new data!
Bernd Machenschalk
Moderator
Administrator
Joined: 15 Oct 04
Posts: 4309
Credit: 250068897
RAC: 34325
4 Jul 2013 6:46:40 UTC
Topic 197042
(moderation:
We (finally!) received new data from Arecibo, about 350 beams so far. These are "inner galaxy" beams from April 2013 that (AFAIK) no other PALFA pipeline has looked at so far. It's rather likely that there are some unknown pulsars in there that could be discovered by Einstein@Home. We decided to send out this data first, before finishing the remaining ~300 "outer galaxy" beams of the old data set. So if you're in for a pulsar discovery hunt, now is the time to point your CPUs to Einstein@Home and run the "BRP4" App!
BM
BM
Binary Radio Pulsar Search (Arecibo) "BRP4" - new data!
)
Aha! The trumpet is sounded, and the foxes are loose. Release the hounds! :-)
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
Woof Woof
)
Woof Woof
RE: Woof Woof Yep. The
)
Yep. The inner galaxy vs. outer galaxy expected densities are several orders of magnitude different. Is there a ballpark figure ( ratio ) on that, Bernd ?
Cheers, Mike.
( edit ) For that matter, ought we punt this message out via BOINC and/or front-page it ?
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
RE: Is there a ballpark
)
That's a question for Benjamin. I notified him.
BM
BM
Does this data run on gpu
)
Does this data run on gpu aswell or just cpu
RE: That's a question for
)
You called? ;-)
This plot, which I took from the PALFA webpage might give you an idea.
The plot shows a schematic of our Galaxy from above, the Sun is at the thick circle with a dot at the center in the top half (below the words "Orion-Cygnus"). Red dots are all known pulsars, blue dots are the pulsars found by the PALFA survey.
Arecibo on the Earth (at the position of the Sun in this scale) can basically see two wedges. One going to the bottom right, between 35 and 75 degrees in the angle scale centered on the Sun's position. This is the "inner Galaxy" direction. The blue dota are all pulsars discovered in PALFA data (not necessarily by Einstein@Home, though).
The other wedge is going to the top, between 170 and 210 degrees on the Sun-centered angle scale. You can easily see that are much fewer pulsar looking to the outer Galaxy just because the Sun is not at the center of the Galaxy and there are less stars looking outwards.
In total there are 113 PALFA discoveries in this plot, only 5 of which are in the outer Galaxy region. The outer Galaxy to inner Galaxy discovery ratio thus is 5:108, or approximately 1:22.
Cheers,
Benjamin
Einstein@Home Project
RE: The outer Galaxy to
)
... which is surprisingly consistent with my very vague remembrance (1:20) I uttered a week ago.
Thanks, Ben!
BM
BM
RE: Does this data run on
)
On GPUs these tasks run way too short (down to a minute), this would stress our servers as well as e.g. your download rate too much. No, CPU only.
BM
BM
also is there a way to only
)
also is there a way to only run these tasks.
in my settings i have these:
Binary Radio Pulsar Search (Arecibo)
Binary Radio Pulsar Search (Perseus Arm Survey)
Gravitational Wave S6 LineVeto search (extended)
Gamma-ray pulsar search #2
which one do i keep on to do BRP4 new data only
RE: which one do i keep on
)
See thread title?
BM
BM