Iron lines in the X-ray detected from a binary black hole system

Astronomers at the Indian Institute of Astrophysics (IIA), an autonomous institute of the Department of Science and Technology, have recently detected iron Lines in X-rays from a well-known binary black hole system in the radio galaxy 4C+37.11 750. This is the first time that X-rays have been detected in a binary system.

The system is located 750 million light years away from the Earth….