Ultraluminous X-ray Sources and Their Nebulae
arXiv:0808.0898 · doi:10.1063/1.3002506
Abstract
One of the interesting features of Ultraluminous X-ray sources is that many of them are surrounded by luminous nebulae exhibiting diverse observational properties. In different cases the nebulae are photoionized or shock-powered. Generally, the two energy sources appear to coexist. ULX bubble nebulae may be considered a new class of shock-powered nebulae similar to upscaled versions of stellar wind bubbles. Their expansion rates support constant energy influx rather than single powerful events like Hypernova explosions.
arXiv comment6 pages, 1 figure, to appear in the proceedings of "Cool discs, hot flows: The Varying Faces of Accreting Compact Objects", Funasdalen, Sweden, 2008, ed. M. Axelsson (New York: AIP)