Science news articles about 'ULX'

... known as ultraluminous X-ray sources (ULXs). They appear to emit more energy than any known ... million-solar-mass black holes. "ULXs are good candidates for intermediate-mass black ...

... known as an ultraluminous X-ray source -- ULX, for short -- in the neighboring Andromeda galaxy (M31 ... -ray sources, and Chandra's 2009 discovery of a nearby ULX in Andromeda sparked intense interest ...

... ) -- An ultra-luminous X-ray source (ULX) emits more radiation in the X-rays than do ... , have none, and galaxies that do host a ULX usually have only one. ULXs are also mysterious: If they were stars with about the mass of the sun ... them apart. Most astronomers today think that ULXs are black holes of more than about ten solar-masses ...

... more massive than the ones found elsewhere in our galaxy. The companion stars to ULXs, when identified, are usually young, massive stars ... by a dramatic accumulation of more material from the companion star. "If the ULX only had been observed during its peak of X-ray ...

... our Sun’s mass, can blast the ultra-luminous X-ray outbursts (ULX’s) that scientists see ...

... was classified as an ultraluminous X-ray source (ULX), the second ever seen in M31 and efforts ... black hole outside our own galaxy. A ULX is thought to be a binary system containing a black ...