Sorry, science fiction fans. You can't actually survive a trip through a black hole. And if you tried to take a plunge into one, like Matthew McConaughey in the movie Interstellar , you'd be ripped apart long before you could find out what's on the other side.
To fully appreciate why you can't just swan dive or pilot your spaceship into a black hole, you must first understand the basic properties of these gravitational goliaths. Simply put, a black hole is a place where gravity is so strong that no light — or anything else, for that matter — can escape.
Check out this next:
Science with Sam: What is a black hole? And could you survive one? | New Scientist
Welcome to the first episode of Science with Sam , hosted by New Scientist social media editor Sam Wong, who will explain some of the biggest topics in science every week. From microbiomes to vaccines , quantum theory to consciousness, and much, much more. If you've ever idly wondered whether it would be possible to escape from a black hole, questioned whether there are multiple universes or wanted to understand exactly how a vaccine works, this video series is for you.
New Observations Of Black Hole Devouring A Star Reveal Rapid Disk Formation - SpaceRef
Computer simulation of the disruption of a star by a black hole shows the formation of an eccentric accretion disk of stellar material spiraling into the black hole. This image from a video of the simulation shows the early stage in the formation of the disk. CREDIT Jamie Law-Smith and Enrico Ramirez-Ruiz
When a star passes too close to a supermassive black hole, tidal forces tear it apart, producing a bright flare of radiation as material from the star falls into the black hole.
Continuous infrared winds discovered during the eruption of a stellar mass black hole
X-ray binaries, as their name implies, are binary stars that emit strong radiation in X-rays. They are formed by a compact object, normally a black hole, with a stellar companion. Low-mass X-ray binaries (LMXB) have companions with masses equal to, or less than the mass of the sun. In these systems the two stars orbit at a distance so small that some of the mass of the star falls into the gravitational well of the black hole, forming a flat disc of material around it.
Transitory X-ray binaries are those in which the amount of mass accreting onto the black hole is initially small and its brightness is too low to detect from the Earth, but which transition to eruptive states in which the black hole's accretion rate increases and the material in the disc heats up, reaching values between 1 million and 10 million degrees Kelvin.
Other things to check out:
Here's What Happens When a Supermassive Black Hole Fails to Do Its Job [Video]
Galaxy Cluster SpARCS104922.6+564032.5. Credit: X-ray: NASA/CXO/Univ. of Montreal/J. Hlavacek-Larrondo et al; Optical: NASA/STScI
Astronomers have seen many examples where a supermassive black hole in a cluster’s central galaxy prevents this hot gas from cooling to form vast numbers of stars. This heating allows supermassive black holes to influence or control the activity and evolution of their host cluster.
However, the would-be domineering black hole in SpARCS1049 is behaving differently and is almost completely dormant. This appears to be allowing star formation to run rampant. According to observations from Hubble and NASA’s Spitzer Space Telescope, SpARCS1049 is forming stars at a rate over 300 times our Milky Way galaxy.
Black hole news: THREE supermassive black hole mergers identified | Science | News | Express.co.uk
Ultra-bright galaxies known as quasars which have supermassive black holes in their centre have been spotted dancing and merging across the Universe. A quasar is created when a supermassive black hole consumes so much material at a rapid speed that they produce a bright blast of energy.
Now, researchers have spotted "dual quasars", where the galaxies have been merging to create an even brighter blast with two supermassive black holes in the centre.
Black hole spotted devouring a star - 'First solid confirmation' | Science | News | Express.co.uk
New TDE observations led by astronomers at University of California have now provided proof debris from the star forms a rotating disk, known an accretion disk, around the black hole.
Theorists have been debating whether an accretion disk can form efficiently during a tidal disruption event.
First author Tiara Hung, a postdoctoral researcher at University of California thicks the research can help resolve that question.
She said: “In classical theory, the TDE flare is powered by an accretion disk, producing x-rays from the inner region where hot gas spirals into the black hole.
Black hole near Neptune could cause 'dire results' as Earth orbit 'considerably modified' |
These two types of space phenomena are vastly different, but Harvard University astrophysicist Fabio Pacucci revealed during a TedTalk how they both pose their own unique risks.
He said: “Most of the black holes that we have found can be thought as two main types – the smaller ones, called stellar-mass black holes have a mass of up to 100 times larger than that of our Sun.
* * *
“We’ve observed several of these objects as close as 3,000 light-years away and there could be up to 100 million small black holes just in the Milky Way.
No comments:
Post a Comment