9:00 am Online
In August of 2019, the LIGO-Virgo gravitational-wave network witnessed the merger of a black hole with 23 times the mass of our sun and a mystery object 2.6 times the mass of the sun. Scientists do not know if the mystery object was a neutron star or black hole, but either way it set a record as being either the heaviest known neutron star or the lightest known black hole.
You can find the paper at https://arxiv.org/abs/2006.12611 or in ApJL at https://iopscience.iop.org/article/10.3847/2041-8213/ab960f.
There will be a LVK webinar about the event tomorrow (June 25) at 1400 UTC (9am CT); sign up at https://zoom.us/webinar/register/2015925748994/WN_rsJximZ8R36WqZnMH16IrA.
Everyone is welcome!