Sentences with phrase «first black hole seeds»
Thus, we must wonder whether the first black hole seeds could have formed through other channels.
https://www.scientificamerican.com/ Not exact matches
As an explanation for the first quasars, each of these pathways for the formation of black hole seeds has the same problem: the seeds would have to grow extraordinarily quickly within the first billion years of cosmic history to create the earliest quasars.
Finding the first seed black holes could help reveal how the relation between black holes and their host galaxies evolved over time.
In effect, if the first quasars grew from Population III black hole seeds, they would have had to eat faster than the Eddington rate.
It is difficult to imagine a scenario in which the black holes powering the first quasars grew from seeds this small.
Current theories suggest that the seeds of these black holes were the result of either the growth and collapse of the first generation of stars in the Universe; collisions between stars in dense stellar clusters; or the direct collapse of extremely massive stars in the early Universe.
The amplitude and frequency of these waves could reveal the initial mass of the seeds from which the first black holes grew since they were formed 13 billion years ago and provide further clues about what caused them and where they formed, the researchers said.
«By combining the detection of gravitational waves with simulations we could ultimately work out when and how the first seeds of supermassive black holes formed.»
«It is pretty clear that you first make small seed black holes in the early universe, and over cosmic time, by swallowing gas in their vicinity, they grow,» said study co-author Priya Natarajan, a Yale astrophysicist.
One explanation for the existence of supermassive black holes in the early universe postulates that the first black holes were «seeds» that grew into much larger black holes by gravitationally attracting and then swallowing matter.