Black holes are bizarre things, even by the standards of astronomers.
But we have lots of questions about their actual feeding behavior. We know material on its way into the hole spirals into a glowing"accretion disc" that can be bright enough to outshine entire galaxies. These visibly feeding black holes are called quasars.
These whole-sky scans also happen to provide a nightly record of the glow of hungry black holes, deep in the background. Our team put together a five-year movie of each of those black holes, showing the day-to-day changes in brightness caused by the bubbling and boiling glowing maelstrom of the accretion disc.In 1998, astrophysicists Steven Balbus and John Hawley proposed a theory of"" that describes how magnetic fields can cause turbulence in the discs.
But when we sorted them by size, brightness, and color, we began to see intriguing patterns. We were able to determine the orbital speed of each disc – and once you set your clock to run at the disc's speed, all the flickering patterns started to look the same.That was comforting! It means these mind-boggling maelstroms are"simple" after all.
Österreich Neuesten Nachrichten, Österreich Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
'Black on Black' celebrates Black culture while exploring history and racial tensionDaniel Black’s collection of essays call for an overhaul of the U.S. criminal justice system, of the way Black people see themselves and more. They aren’t an easy read, but his strong, informed, relentless voice affects readers, our critic writes.
Weiterlesen »
Revealed: First Dormant, Stellar-Mass Black Hole in Our Cosmic BackyardAstronomers Discover Closest Black Hole to Earth Astronomers have discovered the closest black hole to Earth, which the researchers have dubbed Gaia BH1. The dormant black hole weighs about 10 times the mass of the Sun and is located about 1600 light-years away in the constellation Ophiuchus, makin
Weiterlesen »
Black History Month Begins With Reflections on Black AmericaFebruary is Black History Month, and outlets are publishing reflections on black history and commentaries on the current state of civil rights efforts. See perspectives and analysis across the spectrum from CNNOpinion, nypost, and axios:
Weiterlesen »
Black History Month: MFAH celebrates films by Black women this weekendThe Museum of Fine Arts, Houston's Black History Month film series, 'Through the Lens of African-American Women,' runs Friday through Sunday.
Weiterlesen »
Black Panther: Wakanda Forever Begins Disney+ Black History MonthICYMI: Black Panther: Wakanda Forever Begins Disney+ Black History Month Today blackpanther blackpantherwakandaforever disneyplus wakandaforever blackpanther2 marvel disney
Weiterlesen »