Sentences with phrase «hole mergers through»
Being able to study things like black hole mergers through gravity will shed light on some of the «darkest yet most energetic events in our universe,» said Albert Lazzarini, deputy director of the LIGO Laboratory, in an American Physical Society press release.
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They have improved their balance sheets, filled product holes through mergers and acquisitions and are now spending less on research and development.
The likely scenario in which this could have happened is if the galaxy hosting the black hole experienced mergers or collisions with other galaxies through its evolutionary history.
That's because no one knows whether such supergiants grow from scratch within star - forming regions, or whether, like supermassive black holes and galaxies, they reach their enormous mass through mergers.
In a new study, the scientists show their theoretical predictions last year were correct: The historic merger of two massive black holes detected Sept. 14, 2015, could easily have been formed through dynamic interactions in the star - dense core of an old globular cluster.
That's much too big for them to have been built up through the slow mergers of small black holes formed in the conventional way, from collapsed stars a few dozen times the mass of the sun.
These mergers produce shock waves, which propagate through the clusters, reaccelerating particles previously accelerated by supermassive black holes in the galactic nuclei.
If galaxies that have never been through a merger, like NGC 4178 — detectable by their lack of stellar bulges — have their own central black holes, their properties could help tell the story.
«Some supermassive black holes spin at more than 90 % of the speed of light, which suggests that they gained their mass through major galactic mergers.»
The scientists combed through masses of simulated black hole data until they found the faint but unambiguous sound of black hole mergers.
A galactic bulge is thought to evolve through numerous mergers and collisions with other galaxies which would bring a large amount of interstellar materials (* 2) into a galactic center and further the evolution of a black hole.