Cygnus X-1: Blue Supergiant Pairs With Black Hole
[/caption] Discovered in 1964 during a rocket flight, Cygnus X-1 holds the record for being the strongest X-ray source seen from Earth. The blue supergiant star designated as HDE 226868 is just part of this high-mass X-ray binary system… the other is a black hole. “We present a detailed study of the X-ray dust scattering … Continue reading "Cygnus X-1: Blue Supergiant Pairs With Black Hole"
Tammy Plotner