Colossal distant black hole holds surprises about early universe
Colossal distant black hole holds surprises about early universe
Astronomers Find the Earliest Supermassive Black Hole Ever Discovered
07 December, 2017, 09:25
"Gathering all this mass in fewer than 690 million years is an enormous challenge for theories of supermassive black hole growth", Eduardo Bañados, an astronomer with the Carnegie Institution for Science, said in a news release.
"This adds to our understanding of our universe at large because we've identified that moment of time when the universe is in the middle of this very rapid transition from neutral to ionized", Simcoe says.
In addition, he says, it looks like this black hole formed in a cosmic environment that was only just starting to be affected by light from the first stars. When you think of a black hole, you're likely thinking of a stellar black hole, which forms when a star explodes in a spectacular supernova, and the remaining core collapses under the weight of its own gravity. Using the black hole, scientists can now predict when stars began lighting up the universe within an accuracy of about 1 to 2 percent.
Artist's conception of the discovery of the most-distant quasar known.
"This is the only object we have observed from this era", says Robert Simcoe, the Francis L. Friedman Professor of Physics in MIT's Kavli Institute for Astrophysics and Space Research.
Boffins believe that the central mass of the black hole existed when our universe was only 5% of its current age. The universe was just not old enough to make a black hole that big. This supermassive black hole, which has a mass 800 million times greater than the sun, formed when the universe was only 690 million years old.
This year's YouTube Rewind video is quite the ride The man in the mask sings "Until We Will Become Dust", which starts out as a ballad and eventually breaks into a rap. As of this year, YouTube is the most popular streaming service in the world, with over 1 billion users worldwide .
But there's a problem with the finding: the black hole appears to be far too big for its age.
The black hole is positioned at the center of a quasar, the massive, highly luminous accretion disks found at the center of many galaxies. Quasar light can be decoded to yield information about the hydrogen atoms the light has encountered along its billion-light-year-journey. It's a glimpse into what the earliest universe was like.
This also happened right around a major moment in the universe, called the reionization, essentially where hydrogen stopped messing around and became the reactive element we know and love today.
"The moment when the first stars turned on is when our universe filled with light", says Simcoe, who explains that when this light leaked out of the first galaxies, it interacted with the surrounding matter and changed its properties. These can not, in theory, have formed from the collapse of massive stars because the timescales don't match-there would not have been enough time for a start to be born, live and die for it to exist.
Though cosmologists estimate the early universe hosted between 20 and 100 quasars, until now, only one had been found at such a dramatic distance. It dates back to 690 million years after the Big Bang.
There is one large mystery that remains to be solved: How did a black hole of such massive proportions form so early in the universe's history? But this newly-discovered black hole is more than 200 million lightyears further away - and hence, 200 million years older. After the energetic particles from the Big Bang cooled, they formed neutral hydrogen.
The us military has promised to provide more information about the number of troops deployed outside the United States. Mattis' direction to give the American people a better idea of the commitment of US forces in the region.
This artist's concept shows two super-Earth exoplanets, K2-18b and c, orbiting the red dwarf star K2-18. K2-18b offers a unique chance for research when NASA's James Webb Space Telescope will launch in 2019.
That's huge leap from the $450 price when the platform began offering the digital currency as a payment method in April 2016. Valve's shirking of bitcoin is another development in a broader debate about the usefulness of the cryptocurrency.
Now people close to Rousey have told USA Today and MMA Junkie that she is "finalizing details of her move to WWE ". Ronda Rousey first came into the spotlight when she won the Bronze Medal in Judo at the 2008 Beijing Olympics.
To top things off, Huawei will be using some AI magic to let the camera app do "instant scene recognition" and auto framing. So expect the Huawei P11 to "probably" become official at Mobile World Congress 2018.
The final ruling in the case is expected next year, but the relationship between Boeing and Canada has nosedived since. The funding allowed Bombardier to significantly lower the cost per aircraft, Boeing argued.
The retailer reported $1.00 earnings per share for the quarter, topping the Zacks' consensus estimate of $0.97 by $0.03. The stock of The Andersons, Inc. (NYSE: WMT ) has "Neutral" rating given on Thursday, October 15 by Bank of America.
But if you thought the makers were satified with the electic mix of contestants already locked in the house, then think again. Shilpa and Akash were discussing a fight between Hiten and Akash when she said he must not call Hiten "loser".
Australia Parliament Passes Same-Sex Marriage Bill
Gay marriage was endorsed by 62 percent of Australian voters who responded to a government-commissioned postal ballot last month. And I said to LGBTIQ Australians in particular, you have given us a gift. "This is a day for every Australian".
"I'm in!" Lupe Valdez kicks off campaign for governor of Texas
The sheriff's department added its own statement: "The department thanks her for serving as our Sheriff for the last 13 years". Dallas County Sheriff Lupe Valdez has filed paperwork to become a candidate for governor in the March Democratic primary.
T&T blacklisted as tax haven by EU
The Paradise Papers leak, which made public some of the intricate ways corporations and individuals evade tax using offshore havens, has given new impetus to the bloc.
TVS launches Apache RR 310 in India
It was also reported by NDTv that the TVS Apache RR 310 will be launched in worldwide markets where TVS has a presence. It certainly looks like a good package, combining a strong engine with modern details but the kicker is the price.
This popular Android app has leaked data of 31 million users
The unprotected database from AI.type reveals just how much detail the app can grab from users without their explicit knowledge. Eitan Fitusi , Founder and CEO of Ai.type, told BBC that the quantity of data left visible was not as comprehensive as claimed.
Alabama DC Jeremy Pruitt offered Tennessee job
Then, Tennessee saw a number of possible candidates either take new jobs or reaffirm their commitment to their current school . Tennessee has offered a deal to make Jeremy Pruitt the program's next head football coach, according to multiple reports .
IOC leaves weightlifting at risk of 2024 Olympic snub
These athletes will participate under the name "Olympic Athlete from Russia", and their uniform will bear the Olympic flag. But, Walden said Rodchenkov remains fearful for his friends and family who are still in Russian Federation .