A lot of these signals sit close to the threshold of significance that we use in making LVK catalogues, so there's also a much higher chance some of these are in fact noise artefacts than real signals.
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Finally, I've tried to produce my results in the same format as previous LVK publications' results, so if you want to use them in your own analyses it should be easy to do so.
Nice work! I haven't quite understood if these events have not been identified by LVK at all, or if they remained as "sub-threshold" events, which become more significant in another analysis. If it's the former, do you know why LVK pipelines missed them?
It's a bit of a mixture. Some of the differences come down to how different pipelines determine significance. Some come down to the sensitivity of the searches (e.g. the IAS-HM search includes higher modes in their search). Some come down to the definition of the threshold (pycbc-kde silver ones).
I see, thanks for the explanation! Out of curiousity, do you happen to know how the relation between the "official" and "community" catalogs works in other branches of astrophysics? Do they coexist, or get merged eventually is some way...
That's a good question; I don't really know if anyone's tried to do an analysis across multiple groups' catalogues before. I think the PE results would be tricky to combine (easier now, though!) as they don't all use the same priors etc.
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Well, more of the story is here:
https://daniel-williams.co.uk/2025/01/09/beyond-gwtc3.html
Basically I started this in order to test some software, and things got out of hand.
That said what it's taught me is that putting one of these catalogues together should definitely be a team effort!
You can find them here:
https://zenodo.org/records/14537407