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Há 20 horas · DOI: 10.48550/arxiv.2405.16673. A physicist investigating black holes has found that, in an expanding universe, Einstein's equations require that the rate of the universe's expansion at the event ...
Há 2 dias · First looks would tell most observers that supermassive black holes (SMBHs) and very young stars have nothing in common. But that’s not true. Astronomers have detected a supermassive black hole ...
Há 4 dias · By combining forefront X-ray observations with state-of-the-art supercomputer simulations of the buildup of galaxies over cosmic history, researchers have provided the best modeling to date of the growth of the supermassive black holes found in the centers of galaxies.
Há 4 dias · An international team of astronomers, including researchers from Chalmers University of Technology in Sweden, has made a breakthrough discovery. They found a powerful rotating, magnetic wind that...
Há 5 dias · We wanted to measure light from molecules carried by winds from the galaxy's core, hoping to trace how the winds are launched by a growing, or soon to be growing, supermassive black hole.
Há 5 dias · 2 days ago. Clouds of gas in a distant galaxy are being pushed faster and faster — at more than 10,000 miles per second — out among neighboring stars by blasts of radiation from the supermassive...
Há 5 dias · If the black hole is initially in a pure state, the unitary evolution principle of quantum mechanics suggests that the entanglement entropy of the black hole should be equaltothatoftheradiation.
