Optical emission from massive donors in ultraluminous X-ray source binary systems
Optical emission from massive donors in ultraluminous X-ray source binary systems
We present evolutionary tracks of binary systems with high-mass companion stars and stellar-through-intermediate mass black holes (BHs). Using Eggleton's stellar evolution code, we compute the luminosity produced by accretion from the donor during its entire evolution. We compute also the evolution of the optical luminosity and colours of the binary …