Rumors of 3rd LIGO Event: New Scientific Article Sheds Light

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Recent discussions highlight rumors of a potential third LIGO event, alongside the confirmed event from September 14, 2015. A scientific paper indicates a second event on October 12, 2015, but suggests it may have only an 84-91% chance of being astrophysical in nature, indicating it was likely a weaker event. Observations from New Scientist reveal ongoing searches for optical counterparts, with a significant new search initiated in late December, hinting at another high-significance event. The community anticipates further updates regarding these findings. The investigation into these events showcases the ongoing interest and developments in gravitational wave astronomy.
phyzguy
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I'm trying to reconcile yesterday's announcements with the rumors that have been reported. I and others have heard rumors of three events. Yesterday they reported on the event from 14-Sep-2015, and the paper LIGO-P1500217 titled "The Rate of Binary Black Hole Mergers Inferred from Advanced LIGO Observations Surrounding GW150914" at the LIGO DCC site refers to an event on 12-Oct-2015, but says that it has only an 84-91% chance of being of astrophysical origin. So this was presumably a weak event. Now, look at this article on New Scientist, where someone has been tracking LIGO's search for optical counterparts. The blue search that began in mid-September clearly corresponds to the event we heard about yesterday. But there is a new search that began in late December. So it looks like they saw another high-signifcance event in late December that we have yet to hear about. More to come!
 
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Clever detective work. Thanks.
 

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