•   
  •   
  •   

Technology Supermassive black hole tells us when the first stars were born

03:05  07 december  2017
03:05  07 december  2017 Source:   qz.com

NASCAR Hall of Famer, World War II vet Bud Moore dies at 92

  NASCAR Hall of Famer, World War II vet Bud Moore dies at 92 NASCAR Hall of Famer Bud Moore, a World War II veteran awarded five Purple Hearts and two Bronze Stars, has died. NASCAR announced the death of Moore, born Walter Moore Jr., on Tuesday. No details were given, but Moore lived in Spartanburg, South Carolina.

Supermassive black holes like this one are different: what must have happened, scientists think, is the black hole started much larger than a typical supernova remnant—perhaps forming directly from a huge amount of gas that never became a light-producing star . Or if not, it must have found a novel

Supermassive black holes like this one are different: what must have happened, scientists think, is the black hole started much larger than a typical supernova remnant—perhaps forming directly from a huge amount of gas that never became a light-producing star . Or if not, it must have found a novel

a close up of a star in the sky © Provided by Quartz

Scientists may have just discovered when the first stars in the universe were born.

The revelation, published in the journal Nature, comes out of observations that researchers made earlier this year of a gargantuan black hole at least 13 billion years old and 800 million times the mass of the sun.

The thing is a deep-space enigma: researchers are baffled how a black hole could have gotten so massive within several hundred million years of the Big Bang. But even more exciting than the black hole itself is the luminous disk of gas orbiting it—combined, the black hole and gas disk form a system called a quasar, and this one is shedding new light on the early cosmos.

Tiger Tracker: Tiger Woods off to strong start at Hero World Challenge

  Tiger Tracker: Tiger Woods off to strong start at Hero World Challenge Tiger Tracker: Tiger Woods returns to competitive golf at Hero World Challenge and Golfweek is tracking Round 1 shot by shot.The event, which benefits the Tiger Woods Foundation, takes place at Albany Golf Course in New Providence, Bahamas and is the site of Woods' first competitive round since February.

Scientists may have just discovered when the first stars in the universe were born . The revelation, published in the journal Nature, comes out The revelation, published in the journal Nature, comes out of observations that researchers made earlier this year of a gargantuan black hole at least 13 billion

Supermassive black hole violently swallows star , and researchers watch. Lilly Price, USA TODAY Published 9:55 a . m . ET June 15, 2018 | Updated 9 The star the black hole ate was more than twice the sun's mass, according to the scientists. This is the first time scientists have witnessed this type of

Astronomers started by studying the quasar’s emission spectrum, from which they could figure out how fast the system is moving away from us. Because of how the universe expands, this value directly relates to how distant the quasar is from us, which the scientists calculated to be 13 billion light years. That, of course, gives us its age: the light took 13 billion years to reach our telescopes.

About 13.7 billion years ago, there was a Big Bang, which created a mess of subatomic particles. After things began to cool, these particles came together to form lots of hydrogen and some helium. But the new observations have revealed the hydrogen in the early universe was far different from most of the hydrogen in outer space today. Almost all the hydrogen atoms we’ve observed in intergalactic space have lost their electrons, giving them a positive charge. About half the hydrogen atoms near this quasar, however, are neutral, which means they’re still holding onto their electrons.

Supermassive Black Holes Spotted in Photo of Andromeda

  Supermassive Black Holes Spotted in Photo of Andromeda The black holes are the closest orbiting pair ever discovered.Andromeda is our closest neighbouring galaxy, sitting around 2.5 million light years away. This is fairly close in astronomical terms—it is expected it will collide with our own home galaxy, the Milky Way, about four billion years from now.

These are the first confirmed observations of stars forming in this kind of extreme environment. Supermassive black holes lurk in the cores of most galaxies, and when they gobble These stars are thought to be less than a few tens of millions of years old, and preliminary analysis suggests that

Supermassive black holes are some of the most powerful objects in the universe and are found in Light from background stars is stretched and smeared as the stars skim by the black hole . There's a supermassive black hole at the center of our galaxy. It can't be seen directly through telescopes or

When light hits a neutral hydrogen atom, the atom can absorb the light and lose its electron. Afterwards, the light moves through the hydrogen fairly freely. But when scientists were studying the quasar, they realized they were viewing through a region of outer space that was still extremely opaque, full of neutral atoms. Meaning, it had never been exposed to light before.

In other words, it appears that that 13 billion years ago there weren’t lots of stars yet.

“This actually suggests we’ve measured, to within one or two percent accuracy, the moment at which starlight first illuminated the universe,” says Dr. Robert Simcoe, a physics professor at MIT and one of the authors of the study. “We’re used to the idea of the stars being almost eternal, but there actually was a time before there were any stars, when the universe was dark. And we now think we have a pretty good sense of when that transition took place.”

Hideki Matsuyama cleared of potential four-stroke penalty at Hero World Challenge

  Hideki Matsuyama cleared of potential four-stroke penalty at Hero World Challenge Hideki Matsuyama cleared of potential four-stroke penalty at Hero World Challenge“[He] didn’t have any intent to improve,” said PGA Tour Vice President of Rules and Competition Mark Russell. “He said he was not even really conscious that he did that. His intent was not to improve [the conditions] coming back there and the ball didn’t come to rest in that spot.

Supermassive Black Hole by Muse Lyrics Oo baby don't you know I suffer? Oo baby can't you hear me moan? You caught me under false pretences How long before y And I thought I was a fool for no one But oo baby I 'm a fool for you You're the queen of superficial How long before you tell the truth?

Scientists have seen the vast blast thrown out by a black hole eating a star for the first ever time. Researchers have finally watched the formation and expansion of the fast-moving jet of material that is thrown out when a supermassive black hole 's gravity grabs a star and tears it apart.

“The very early universe was extremely boring, because there’s only neutral gas floating around, and the only thing that was happening was these small clumps [of matter] were forming,” says Bram Venemans, a co-author on the paper and a research staff scientist at the Max Planck Institute for Astronomy. “Something only started to happen when the first star formed and you got radiation that started to ionize everything.”

It’s still unclear how exactly a supermassive black hole formed without many stars in the universe. 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. Supermassive black holes like this one are different: what must have happened, scientists think, is the black hole started much larger than a typical supernova remnant—perhaps forming directly from a huge amount of gas that never became a light-producing star. Or if not, it must have found a novel way to grow astonishingly fast.

No one’s sure exactly how those processes might happen, but researchers plan to look for more, similar deep-space objects to test their theories.

Rose leads by 1 after 2 rounds at Indonesian Masters .
Justin Rose completed the final two holes of his second round early Saturday for a 3-under 69 and a one-stroke lead at the Indonesian Masters. Rose, who had a first-round 62, was among a quarter of the field forced off the Royale Jakarta Golf Club course after weather delays on Friday.The Englishman, who bogeyed his last hole, had a two-round total of 13-under 131.Kiradech Aphibarnrat, who completed his 64 on Friday, was in second place.Brandt Snedeker withdrew with apparent heat exhaustion on Friday on the 11th hole of the second round.

—   Share news in the SOC. Networks

Topical videos:

This is interesting!