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Photons, neutrinos, and gravitational-wave astronomy

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Re: Photons, neutrinos, and gravitational-wave astronomy

#11

After so many observations why is multi messenger still n=1?

Hopefully an expert can chime in, but from what I've gathered we were fairly lucky to catch that one. First off, it needs to happen when enough detectors are operational to get a good localization. Back then there were just three and all happened to be operational during the event. Just two won't cut it, as you can see from this[1] using just LIGO data versus this[2] which also includes VIRGO data for GW170817[3]. Ne…

Thank you

Re: Photons, neutrinos, and gravitational-wave astronomy

#12

After so many observations why is multi messenger still n=1?

Hopefully an expert can chime in, but from what I've gathered we were fairly lucky to catch that one. First off, it needs to happen when enough detectors are operational to get a good localization. Back then there were just three and all happened to be operational during the event. Just two won't cut it, as you can see from this[1] using just LIGO data versus this[2] which also includes VIRGO data for GW170817[3]. Ne…

The problem is that the angular resolution is not all that great so it could've been a coincidence. With the number of observations we make and the relative frequency of supernovae anywhere, it's surprising that n isn't at least 2. Or 5.
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