Center of the Milky Way has thousands of black holes, study shows

Distant star Icarus captured by the Hubble Space Telescope in galaxy

The Sloan Digital Sky Survey telescope allowed them to collect optical data, while the Spitzer and GALEX space telescopes gathered near-infrared and near-UV data, enabling them to see the motions and colors of the distant stars.

What they found there: a dozen black holes paired up with stars, according to a report in the journal Nature. Searches for a small pulsar have failed, but it could be that the star cooked up super heavy elements that are decaying into ones never found on Earth.

The newly confirmed black holes are about 10 times the mass of our sun, as opposed to the central supermassive black hole, which has the mass of 4 million suns.

But they have monster cousins.

Now scientists have developed a technique to reveal the smoking gun for hidden black holes at the galaxy's centre.

The Milky Way has one.

More news: Microsoft doubles down on artificial intelligence in engineering reorganization

There are good reasons the Milky Way's black holes tend to be in the center of the galaxy, Hailey said. Their calculations show that there must be several hundred more black holes paired with stars in the galactic center, and about 10,000 isolated black holes.

Another theory is that massive stars, born in gas and dust that surrounds a supermassive black hole, implode to form black holes.

Scientists have suggested for decades that lots of stellar black holes are circling in the center of galaxies, including ours.

The problem has been spotting them. A black hole that isn't eating appears as a single dark dot against an equally dark background, and as such, is nearly totally invisible. Scientists were able to pinpoint at least 12 black hole binaries, where a black hole is siphoning material from a companion star. The orbiting pair is called a black hole binary. "The galactic centre is a odd place".

So he and his colleagues decided not to seek these rare X-ray flashes.

The halo of gas and dust around Sgr A is thought to provide the flawless breeding ground for massive stars which collapse into black holes when they die.

More news: BCCI bars Smith, Warner from this year's IPL

An artist's impression of a black hole binary. Gasses from the partner star are pulled into a disk around the black hole.

It's also crowded with other X-ray-emitting objects, such as binary pairs that contain a white dwarf star. "Isolated, unmated black holes are just black - they don't do anything", said Dr Hailey.

"If we could find black holes that are coupled with low mass stars and we know what fraction of black holes will mate with low mass stars, we could scientifically infer the population of isolated black holes out there".

But binary black hole systems are likely only 5 percent of all black holes, so that means there are really thousands of them, Hailey said.

Want more science from across the ABC?

.

It'll be very interesting to see what happens next with this research, and what more can be learned both about black holes and about the center of our galaxy, from this exciting study.

More news: Trump hails California county that balked at sanctuary law

Related:

  • The Russo Brothers Urge Fans To Refrain From Spoiling Avengers: Infinity War

    The Russo Brothers Urge Fans To Refrain From Spoiling Avengers: Infinity War

    The directors ask fans to keep the film's secrets in a way that's reminiscent of J.K. Rowling's #KeepTheSecrets campaign for " Harry Potter and the Cursed Child ".
    Trump administration sues California over federal land sales

    Trump administration sues California over federal land sales

    The deed is how an owner can borrow money or get insurance for the land because it makes the sale public. A person who does record a deed in violation of the law could be fined up to $5,000.
    Ben Affleck Hits Back at New Yorker for Mocking His Tattoo

    Ben Affleck Hits Back at New Yorker for Mocking His Tattoo

    Even Matt Damon was forced to respond, when The Daily Show host Trevor Noah asked him about his best friend's interesting artwork. She writes that it relates to all of us in a way: "There is something about this exhausted father that reflexively induces panic.
  • China space lab re-entry may be delayed

    China space lab re-entry may be delayed

    It all depends on when the space station re-enters Earth's atmosphere, and this can not be accurately predicted yet. "But there is a good chance that some parts will survive re-entry and fall towards the earth".
    UK Citizens' Sentiment Almost Evenly Split on Year Before Brexit

    UK Citizens' Sentiment Almost Evenly Split on Year Before Brexit

    However, because Britain will be leaving the European Union next year, the United Kingdom won't benefit from the new rules. But longer-term forecasts show growth grinding lower over the next five years and lagging worldwide rivals.
    The Basketball Hall of Fame announces the class of 2018

    The Basketball Hall of Fame announces the class of 2018

    He also was named Pac-10 Freshman of the Year in 1993 and Pac-10 Player of the Year in 1994 during his two seasons at California. Players were tuning Kidd out-or already had last season, according to one source with close ties to the team.
  • Active Shooter Reported At YouTube HQ In San Bruno, Calif.

    Active Shooter Reported At YouTube HQ In San Bruno, Calif.

    CBS reports that Stanford Health Care is "expecting 4-5 patients from [the YouTube] shooting", according to a hospital official. Police in San Bruno, Calif., say they are responding to an active shooter after reports of gunfire at YouTube headquarters.
    Korean art troupe to leave for N. Korea

    Korean art troupe to leave for N. Korea

    One of the band members, Eric Mun, told reporters that they looked at the singers "with eyes like shooting lasers". In recent months there has been a thawing of tensions between North Korea and South Korea.
    NY: Prisoner Escapes ICE Custody at Kennedy Airport and Jumps Into Taxi

    NY: Prisoner Escapes ICE Custody at Kennedy Airport and Jumps Into Taxi

    The man allegedly escaped from the agents at Gate B23, in Terminal 4, around 8:30pm on Tuesday. Fox 5 News reached out to ICE for more details but the agency has not responded.
  • Fortnite Mobile is Now Available to the Public on iOS

    Fortnite Mobile is Now Available to the Public on iOS

    This has now been confirmed by Epic Games, and we've got details about how Vending Machines will work in Fortnite: Battle Royale . These older devices do not support Fortnite: iPhone 5S, 6, 6 Plus; iPad Air, Mini 2, Mini 3, iPod Touch.
    Cardinals Drop Season Opener to Mets 9-4 in NY

    Cardinals Drop Season Opener to Mets 9-4 in NY

    But 21 year old rookie Jordan Hicks pitched a scoreless seventh inning, that included his first Major League strikeout. But that's the beauty of Opening Day: every team can pretend otherwise.
    Widow of gunman in Fla. attack is acquitted

    Widow of gunman in Fla. attack is acquitted

    Family spokeswoman Susan Clary said Salman's family "always thought that Noor was the first victim" of her husband, Omar Mateen . One of her uncles, seated in court behind her, stifled a sob as relatives held one another.

Comments

Latest news

Everything We Learned From Cynthia Nixon's Wendy Interview
Andrew Cuomo for the Democratic nomination for New York's governor, has come out in favor of legalizing recreational marijuana. As for her stance on marijuana, the actress is in totally in favor of legalizing it in NY .

Putin and Erdogan launch construction of Turkey's first nuclear reactor
On Tuesday, April 3, Putin held talks in Ankara with his Turkish counterpart Recep Erdogan . Half of the offshore section of the pipeline has already been installed.

Meghan Markle 'posted wedding rings back to husband who made her famous'
Britain could be facing another Pippa Middleton moment, which saw the Duchess of Cambridge's sister's bum beamed across the globe. The couple supposedly split in May 2016, two months before Markle was introduced to Prince Harry by a mutual friend .

Teachers in Oklahoma and Kentucky stage protests
The Oklahoma Education Association demanded $10,000 in raises for teachers over the next three years, KOKH-TV reported . Hundreds of Oklahoma schools also closed as educators headed to Oklahoma City to protest, according to The Oklahoman .

South Africa's 'Mother of the Nation,' dies at 81
Winnie Madikizela-Mandela transitioned early today in Johannesburg, South Africa after a brief doctor's visit over the weekend. Nomzamo Winifred Zanyiwe Madikizela was born to a noble family of the Xhosa-speaking Pondo tribe in Transkei.

Surprise! Google May Make Its Own Smart Display
A new month and as we've come to expect from Google over the years, a new software update is out for the Pixel duo of 2017. In the U.S. , the Google Home Mini ships for $49 (around Rs. 3,200) and the Google Home ships for $129 (around Rs. 8,500).

Villanova v Michigan: National Championship, Preview, How To Watch
Don't get me wrong, winning five consecutive games in the NCAA Tournament is not easy no matter what team or seed you're playing. Then it was back to the team hotel, but even then the players didn't get to see much of the game because of family commitments.

Syrian Government Declares Victory Over Eastern Ghouta
Pope Francis called yesterday for an end to "carnage" in Syria and "reconciliation" in the Middle East in his Easter message. They included fighters from the Faylaq al-Rahman and Ahrar al-Sham rebel groups, their families and other residents.

Buzzer-beater pushes Notre Dame past UConn in women's Final Four
Nevertheless, a golden opportunity to put away the game in regulation was missed - but it didn't demoralize the Irish in overtime. The No. 1 Mississippi State Bulldogs advanced to the Women's Final Four Friday, beating the Louisville Cardinals 73-63.

'Smallville' actress Kristin Kreuk denies recruiting sex slaves for 'self-help' NXIVM cult
Raniere was arrested in Mexico last weekend on charges of sex trafficking and conspiracy to commit forced labor. Raniere mentored Allison in her study of acting and music", her biography section reads .

Governor Fallin Signs Historic Teacher Pay, State Employee Raise Deal
The district said that although buildings will be closed, the district will use school buses to provide box lunches to students. Tens of thousands of teachers and supporters are expected to descend on the state capitol on Monday for the teacher walkout .

Mbappe scores twice as France beats Russian Federation in friendly
Again dribbling past the hapless Neustaedter, the Paris Saint-Germain forward knocked the ball through goalkeeper Lunyov's legs. Following this, Pogba doubled France's lead early in the second half, courtesy of a brilliant free-kick.

Smith, Warner banned for a year over cheating scandal
Earlier this week, the International Cricket Council announced it would ban Smith for one match and fine him all of his match fee. According to media reports, David Warner had a party with his external friends in the bar of team hotel.

Tesla: Model X crash was worsened by missing freeway barrier shield
By Wednesday's stock market close, Tesla's share price had plummeted to $258, its lowest level since last March. It is not clear whether the driver-assistance system equipped in Tesla's vehicles may have played in the crash.

Kevin Love out of Cavaliers' lineup, back in concussion protocol
But Cleveland's 79 points were a season-low and they endured their 14th straight defeat at Miami's AmericanAirlines Arena. That's when team doctors will determine whether or not he needs to enter concussion protocol or not.

Other news