I think the project will continue as data is available. we are currently crunching data from the LIGO 3rd Observational run (O3), and previously ran data from the 2nd Observational run (O2). The 4th Observational run is currently ongoing, so data is not available yet, but presumably will be at some point in the future. I'd be willing to bet if nothing is discovered in O3, that we would continue on with O4. there's likely to be a gap in data availability between running out of tasks for O3 and when tasks and applications are available for O4, as has happened in the past.
It looks like we are currently searching the first half of the third observational run (O3a), at least from what I can decipher from the O3AS work unit name(?). I may have missed crunching the second half of the third observational run (O3b) or perhaps the tasks haven't been issued out yet. If so it may be logical that this will be the next search. Or continue with high frequency search on existing O3a up to 4000Hz , at least this the max frequency as plotted on the paper that I just read showing the strain sensitivity versus wavelength of the three ground-based detectors.
We're constantly increasing our search sensitivity and use data from ever improving observatories. We thereby improve the overall signal strength upper limits and, hopefully sooner than later, eventually detect continuous gravitation waves. Since these types of signals are extremely weak compared to those generated by blackhole mergers (our Nobelprize-winning discovery) it takes much more resources to analyze those integrated data. This is the very reason why these types of searchs require Einstein@Home, meaning all of you and your continued support.
Indeed we are analyzing data from the first half of O3 (sometimes called "O3a"). I am not aware, though, that this shows up in the workunit names - the "a"s therein are just a coincidence. We found that the data from O3b itself is way less sensitive than O3a, and even combining these doesn't increase sensitivity, given that the relatively huge gap of several months between these stretches requires much more computation.
The basic idea is to go upward in frequency until we find something or new, more sensitive data becomes available. However there are some limits regarding the frequency. In particular the higher the frequency, the more computationally expensive the search becomes. So for now we limited ourselves to 2 kHz, I don't think it's feasible to go far beyond that.
Edit: oh sorry - there's indeed a hint to O3a! We're using this for so long that I forgot!
We seem to have just run out of O3AS work again. The server status says there are tasks but the F1d work generator isn't running and I'm seeing 0 tasks on machines asking for work.
Work generator now shows as running. Still can't get tasks yet but I presume it may take a while for tasks to be ready to send. I do want to get to bed tonight (UTC+10) so I hope that doesn't take too long :-).
It seems we're running out of work for O3AS. The work generator is running, but I don't get fresh tasks since more than a day. But I got new skygrids this morning. I have a spare for less than half a day only.
I think the project will
)
I think the project will continue as data is available. we are currently crunching data from the LIGO 3rd Observational run (O3), and previously ran data from the 2nd Observational run (O2). The 4th Observational run is currently ongoing, so data is not available yet, but presumably will be at some point in the future. I'd be willing to bet if nothing is discovered in O3, that we would continue on with O4. there's likely to be a gap in data availability between running out of tasks for O3 and when tasks and applications are available for O4, as has happened in the past.
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It looks like we are
)
It looks like we are currently searching the first half of the third observational run (O3a), at least from what I can decipher from the O3AS work unit name(?). I may have missed crunching the second half of the third observational run (O3b) or perhaps the tasks haven't been issued out yet. If so it may be logical that this will be the next search. Or continue with high frequency search on existing O3a up to 4000Hz , at least this the max frequency as plotted on the paper that I just read showing the strain sensitivity versus wavelength of the three ground-based detectors.
Here's a quick reminder about
)
Here's a quick reminder about how we search for gravitational waves and which data we're using: https://einsteinathome.org/content/gravitational-wave-searches
We're constantly increasing our search sensitivity and use data from ever improving observatories. We thereby improve the overall signal strength upper limits and, hopefully sooner than later, eventually detect continuous gravitation waves. Since these types of signals are extremely weak compared to those generated by blackhole mergers (our Nobelprize-winning discovery) it takes much more resources to analyze those integrated data. This is the very reason why these types of searchs require Einstein@Home, meaning all of you and your continued support.
Thanks for that!
Einstein@Home Project
Thanks Oliver
)
Thanks Oliver
Indeed we are analyzing date
)
Indeed we are analyzing data from the first half of O3 (sometimes called "O3a").
I am not aware, though, that this shows up in the workunit names - the "a"s therein are just a coincidence.We found that the data from O3b itself is way less sensitive than O3a, and even combining these doesn't increase sensitivity, given that the relatively huge gap of several months between these stretches requires much more computation.The basic idea is to go upward in frequency until we find something or new, more sensitive data becomes available. However there are some limits regarding the frequency. In particular the higher the frequency, the more computationally expensive the search becomes. So for now we limited ourselves to 2 kHz, I don't think it's feasible to go far beyond that.
Edit: oh sorry - there's indeed a hint to O3a! We're using this for so long that I forgot!
BM
We seem to have just run out
)
We seem to have just run out of O3AS work again. The server status says there are tasks but the F1d work generator isn't running and I'm seeing 0 tasks on machines asking for work.
Cheers,
Gary.
Work generator now shows as
)
Work generator now shows as running. Still can't get tasks yet but I presume it may take a while for tasks to be ready to send. I do want to get to bed tonight (UTC+10) so I hope that doesn't take too long :-).
Cheers,
Gary.
work seems to be flowing fine
)
work seems to be flowing fine after a brief interruption.
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There has been no new O3AS
)
There has been no new O3AS work for around a full day now. With the weekend fast approaching, will there be new work sometime today or not?
I'm sure many others would also like to know what the plans are. Hopefully one of the staff could respond, thanks.
Cheers,
Gary.
Hallo! It seems we're
)
Hallo!
It seems we're running out of work for O3AS. The work generator is running, but I don't get fresh tasks since more than a day. But I got new skygrids this morning. I have a spare for less than half a day only.
I hope, this can be cured soon.
Kind regards and happy crunching
Martin