The gravitational wave detectors have shown a population of massive black holes that do not resemble those observed in the Milky Way1,2,3 and whose origin is debated4,5,6. According to a possible explanation, these black holes may have formed from density fluctuations in the early Universe (...
If the latter hypothesis is correct, primordial black holes should comprise from several to 100% of dark matter to explain the black hole merger rates observed by gravitational wave detectors. If such black holes existed in the Milky Way dark matter halo, they would cause long-timescale ...
Astronomers in China made a surprising discovery: a massive black hole in our galaxy. Called LB-1, this one is about 70 times the mass of the sun. It's the first time a black hole of this size has been detected in the Milky Way.
Astronomers have found an exceptionally massive black hole in the center of Leo I, one of the Milky Way’s dwarf satellite galaxies. Astronomers at The University of Texas at Austin’s McDonald Observatory have discovered an unusually massiveblack holeat the heart of one of theMilky Way’s dw...
It’s well known that all massive galaxies like the Milky Wayhost supermassive black holesmillions to billions of times the mass of the Sun in their centers. These galaxies and their black holes are intertwined, with the evolution of one significantly impacting the evolution of the other. ...
These dwarf galaxies, more than 100 times less massive than our own Milky Way, are among the smallest galaxies known to host massive black holes. The scientists expect that the black holes in these smaller galaxies average about 400,000 times the mass of our Sun. “We hope that studying th...
At 40 billion solar masses (40 billion times the mass of the Sun), this behemoth dwarves the Milky Way’s central black hole, Sagittarius A* — a puny 4 million solar masses. In fact, it dwarves every other black hole in our galaxy’s vicinity....
our own Milky Way Galaxy has a black hole with a mass of only 3 million solar masses at its center.Black holesare stars whose gravitational force pulls in everything around them."Many astronomers didn't expect something so massive could exist so early in the universe," Xiaohui Fan, of the...
被引量: 2发表: 2011年 Oddball Black Holes Our galaxy's heart is a gluttonous monster. Like the mythical Kammapa of the Sotho people of southern Africa, the Milky Way's central, supermassive black h... A Yeager - 《Science News》 被引量: 0发表: 2023年 加载更多来源...
These images show the patch of the sky where the black-hole binary system V404 Cygni is located, as observed with the IBIS instrument on ESA's Integral gamma-ray observatory. This system, comprising a black hole and a star orbiting one another, is located in our Milky Way galaxy, almost...