The LIGO-VIRGO collaboration have identified a new type of object as a result of a gravitational wave observation designated GW190814 from last Summer: the merger was between a black hole of approximately 23 stellar masses and an object that has been dubbed a 'Black Neutron Star' of approximately 2.6 stellar masses. This new object is described as either a very small black hole or a very large neutron star and it's discovery may require modifications to our theories. Here are some links including the release by Caltech:
https://www.ligo.org/science/Publication-GW190814/ (https://www.ligo.org/science/Publication-GW190814/)
https://www.ligo.caltech.edu/news/ligo20200623 (https://www.ligo.caltech.edu/news/ligo20200623)
https://news.psu.edu/story/623786/2020/06/23/research/black-hole-or-neutron-star (https://news.psu.edu/story/623786/2020/06/23/research/black-hole-or-neutron-star)
We certainly live in interesting times....
Roy
How interesting.
Carole
Thanks Roy ~ It's amazing science!
I couldn't see a link anywhere to allow us hear the 'merger' ~ would have been great. I'll have to give myself more time to read them through in detail.
Hugh