Colliding winds in ultraluminous X-ray sources
Abstract
Ultraluminous X-ray sources (ULX) are objects with luminosities that exceed the Eddington limit for a stellar-mass black hole. In these closed binary systems, the star overflows its Roche lobe and the black hole accretes matter at a supercritical rate. The upper layers of the disk are no longer in equilibrium and are ejected as a powerful radiation-driven wind that interacts with the wind from the star producing shocks where particles can be accelerated up to relativistic energies and then cool down yielding a broadband spectrum.
- Publication:
-
Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- July 2022
- Bibcode:
- 2022BAAA...63..265A
- Keywords:
-
- accretion;
- accretion disks;
- radiation mechanisms: non-thermal;
- stars: black holes;
- stars: winds;
- outflows;
- X-rays: binaries