MAXI J1348−630 is a black hole X-ray binary, observations suggest

Using the Neutron Star Interior Composition Explorer (NICER), an international team of astronomers has investigated a recently discovered X-ray transient designated MAXI J1348−630. Results of the new observations suggest that the source is a black hole X-ray binary. The study is detailed in a paper published September 16 on arXiv.org.

Source:
https://phys.org/news/2020-09-maxi-j1348630-black-hole-x-ray.html