Scientists from the Astronomical Observatory of the University of Warsaw (UW): Prof. Dorota Rosińska, Prof. Tomasz Bulik, Dr Przemysław Figura, Dr Bartosz Idzikowski and PhD students Małgorzata Curyło, Neha Singh and Paweł Szewczyk participated in the discovery of two new astronomical objects consisting of a neutron star and a black hole. Their results have just been published in The Astrophysical Journal Letters.

The existence of these stellar systems has been predicted for decades, but only on January 5, 2020, one of the Advanced Ligo detectors, located in Louisiana, USA, and the Advanced Virgo detector, located in Italy, recorded gravitational waves that came from unknown objects. The discovered systems were named GW200105 and GW200115.

The discoveries of the astronomers from the University of Warsaw and future observations will provide a new view of the birth, life and death of stars, as well as the environment where they formed. They contain valuable information about the physical characteristics of recently observed systems, such as their distances and masses, as well as about the physical mechanisms that merged them.

More:
https://iopscience.iop.org/article/10.3847/2041-8213/ac082e