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A Big Black Hole Floats By
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A Big Black Hole Floats By
Credit & Copyright: David H. Bennett (Notre Dame) et al., WFPC2, HST, NASA
Explanation: A black hole glides silently through space. Is there any way to know it's there? Until last week, all objects that might be black holes in our Galaxy were part of binary star systems. There, gas from the companion star was hypothesized to swirl around the black hole, heat up, and emit X-rays before falling in. Last week, however, analysis was released of a mysteriously dark object that floated in front of a distant background star, dramatically increasing this star's light by the lens effect of its gravity, as pictured above. The high mass and low light of this strange lens have astronomers guessing they might just have detected a lone black hole, weighing in at six times the mass of our Sun. The existence of isolated black holes is not in itself surprising, as they should be the end result of the cores of massive stars.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: black hole - gravitational lens - chernye dyry - gravitacionnoe linzirovanie - gravitacionnaya linza
Publikacii so slovami: black hole - gravitational lens - chernye dyry - gravitacionnoe linzirovanie - gravitacionnaya linza
Sm. takzhe:
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