Binary Black Hole System
The x-ray source at the core of NGC 300 is designated NGC 300 X-1. Astronomers speculate that NGC 300 X-1 is a new kind of Wolf-Rayet black hole binary system similar to the confirmed such system IC 10 X-1. Their shared properties include an orbital period of ~30 hours and x-ray brightness of ~1×1038 ergs.
Read more about this topic: NGC 300
Famous quotes containing the words black, hole and/or system:
“Media mystifications should not obfuscate a simple, perceivable fact; Black teenage girls do not create poverty by having babies. Quite the contrary, they have babies at such a young age precisely because they are poor—because they do not have the opportunity to acquire an education, because meaningful, well-paying jobs and creative forms of recreation are not accessible to them ... because safe, effective forms of contraception are not available to them.”
—Angela Davis (b. 1944)
“Steam was till the other day the devil which we dreaded. Every pot made by any human potter or brazier had a hole in its cover, to let off the enemy, lest he should lift pot and roof and carry the house away.”
—Ralph Waldo Emerson (1803–1882)
“A religion so cheerless, a philosophy so sorrowful, could never have succeeded with the masses of mankind if presented only as a system of metaphysics. Buddhism owed its success to its catholic spirit and its beautiful morality.”
—W. Winwood Reade (1838–1875)