Monday, 17 February, 2020


Are wandering black holes real? Scientists unlock mysteries of these dark entities

Dwarf Galaxy Black Hole Outskirts Massive Black Holes Found Wandering in Dwarf Galaxies
Kristine Garrett | 09 January, 2020, 19:13

Astronomers have discovered some of the smallest galaxies known to host massive black holes, findings which may reveal how such regions of space exhibiting ultrahigh gravitational force - that even light can not escape from - formed in the early universe.

As the researchers behind this study explain, the results are consistent with computer simulations according to which about half of the huge black holes found in dwarf galaxies are wandering in their periphery rather than in the center.

According to the study, A New Sample of (Wandering) Massive Black Holes in Dwarf Galaxies from High Resolution Radio Observations, still awaiting peer review, published in pre-print previous year, the astronomers unexpectedly came across black holes "wandering" in dwarf galaxies in the process.

Scientists wanting to get better the mechanisms that made massive black holes in the early history of the Universe have gathered new details.

Scientists may be one step closer to finding out how supermassive black holes with masses millions or billions of times larger than the sun came into being, as new observations have revealed an fantastic discovery presented at the American Astronomical Society's meeting in Honolulu, Hawaii, on 4-8 January, 2020. The black holes are massive - roughly 4,00,000 times the mass of our Sun.

Our universe is full of mysteries and surprises, and the layers of mysteries deepen when it comes to galaxies and black holes.

They selected galaxies with stars totalling less than 3 billion times the mass of the Sun.

The study identified over a hundred dwarf galaxies from the NASA-Sloan Atlas - a galaxy catalogue. It is possible that larger galaxies are present in smaller galaxies'.

The scientists then made more sensitive, high-resolution images of 111 of the selected galaxies.

Reins explained, "New observations of the VLA show that there is solid evidence for 13 black holes in these galaxies, actively swallowing nearby objects". These galaxies, the researchers think, merged with other galaxies earlier in their lives, and are found wandering in the outskirts of their galaxies.

Reines worked with James Condon, of the National Radio Astronomy Observatory; Jeremy Darling, of the University of Colorado, Boulder; and Jenny Greene, of Princeton University.

The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.

Recommended

loading...
...
  • Ajax defender leaves training camp in Qatar over US-Iran crisis

    Ajax defender leaves training camp in Qatar over US-Iran crisis

    The Iranian authorities have since responded with attacks on Iraqi military bases housing U.S. military personnel. Ajax said Dest asked to leave the camp because "he did not feel comfortable".

    "Consider Inviting Finance Minister": Congress Mocks PM's Budget Meet

    The Congress tagged a tweet of the BJP that said the finance ministry has invited suggestions for the Union Budget 2020-21. As many as 40 experts and economists attended the meeting.
    Meghan Markle's best friend Jessica Mulroney defends royals decision to QUIT monarchy

    Meghan Markle's best friend Jessica Mulroney defends royals decision to QUIT monarchy

    The Duke and Duchess' decision to step down as senior members of the Royal Family is "very much unprecedented", says Larcombe. It is with your encouragement, particularly over the last few years, that we feel prepared to make this adjustment.
  • Apple App Store users spent more money than ever over Christmas

    Combined with Apple Music and Apple Pay , the iPhone maker is looking to shift its business model more towards services. Apple News , the company said, will provide live coverage of "key moments" in the upcoming USA presidential election.
    Teens rescue koalas from Australia bushfires, social media sends love

    Teens rescue koalas from Australia bushfires, social media sends love

    NASA said one-third of the island, over 383,000 acres, shows burn scars and areas that are still burning. At least 25 people have died and residents of entire towns have been forced to flee their homes.
    Openers guide Brisbane Heat to victory over Sydney Thunder

    Openers guide Brisbane Heat to victory over Sydney Thunder

    Banton's hurricane knock was studded with two fours and seven sixes as he helped his team reach 119/4 in eight overs. The Heat took on the Sydney Thunder in the Showground Stadium on Monday in a rain-curtailed 8-overs-per-side match.
  • Jury selection begins for Weinstein rape trial after new charges laid

    Jury selection begins for Weinstein rape trial after new charges laid

    He's accused of raping a woman in a Manhattan hotel in 2013 and forcibly performing oral sex on another woman in NY 2006. After jury selection, Mr Weinstein's NY trial is expected to begin in about two weeks' time.
    Dell Latitude 9510, Dell XPS 13 laptops launched: Check price, features

    Dell Latitude 9510, Dell XPS 13 laptops launched: Check price, features

    A larger touchpad, edge-to-edge keyboard, and one-handed opening strike the ideal balance between aesthetics and functionality. The new UltraSharp 27 4K USB-C Monitor with VESA DisplayHDRTM400 offers wide color coverage for accurate color reproduction.
    Kyrgios leads Australia's charge in ATP Cup quarter finals

    Kyrgios leads Australia's charge in ATP Cup quarter finals

    But the former world number 13 looked like a choirboy compared to the hot-tempered Tsitsipas on Tuesday night. The third set also went to a tie-break, which Kyrgios won 7-5 to win the match 7-6 (7), 6-7 (3), 7-6 (5).
  • Rep. Bradley Byrne Moves to Censure Pelosi for Holding Up Impeachment

    Rep. Bradley Byrne Moves to Censure Pelosi for Holding Up Impeachment

    The Senate can't begin the impeachment trial under the current precedent until the House transmits the articles of impeachment . Chris Coons said he felt his Republican colleagues should be pushing McConnell to hear from witnesses.
    Pew survey, United States News & Top Stories

    Pew survey, United States News & Top Stories

    Mr Trump's support in the Philippines is less surprising, considering his praise for his Philippine counterpart Rodrigo Duterte . In Brazil, too, under the far-right government of President Jair Bolsonaro , only 28 percent viewed the USA leader that way.
    Delhi court reserves order on plea to stay Chhapaak's release

    Delhi court reserves order on plea to stay Chhapaak's release

    Advocate Aparna Bhat, who represented Agarwal in court, has expressed her disappointment with the movie in a Facebook post. Deeply disturbed by the turn of events post watching Chhapaak .

`Don`t bite,` says Pope Francis after agreeing to kiss a nun `Don`t bite,` says Pope Francis after agreeing to kiss a nun The pope apologised for getting irritated in his New Year's Day Angelus blessing, saying "sometimes even I lose my patience". Reuters reports the encounter between the pope and the nun: " Bacio, Papa! " the nun said , which means " A kiss, pope! ".

Gold Prices Dip As US-Iran Tensions Ebb Gold Prices Dip As US-Iran Tensions Ebb Spot gold jumped as much as 2.4% to US$1,611.42 an ounce, the highest since 2013, and was at US$1,593.86 at 5.49am in London. The March silver contract on COMEX was up 0.3% at $18.45 an ounce and had hit a four-month high of $18.895.

Five Young Sports Stars to Watch in 2020 Five Young Sports Stars to Watch in 2020 We’ve now entered 2020 and the sporting world will certainly have a lot to show us in the upcoming year. The upcoming year will be telling if the boy can turn from a talented prospect to a world-class player.

Jimmy Butler Roasts TJ Warren: "He's Not Even In My F*cking League" Jimmy Butler Roasts TJ Warren: Jimmy Butler is the leader of this Miami Heat team, a team that has traditionally and outside of the Big 3 era, been underdogs. Without him, they recently defeated defending champion Toronto, as well as LeBron James and the Los Angeles Lakers at home.

Oil edges up after plunge, as market recovers poise Oil edges up after plunge, as market recovers poise On Sunday, Brent crude futures rose $1.05 to $69.65 a barrel, while US crude climbed 94 cents to $63.99, Reuters said . Morgan maintained its forecast for Brent to average $64.50 a barrel this year.

AT&T Bundling HBO Max With Its Wireless Services AT&T Bundling HBO Max With Its Wireless Services Rebranded after AT&T acquired DirecTV , Audience began broadcasting exclusive and original programming, including " Mr. There's no official word yet on where these shows might land, but sources say they might continue on HBO Max.

Chinese authority says pneumonia outbreak in Wuhan may be new coronavirus Chinese authority says pneumonia outbreak in Wuhan may be new coronavirus Wuhan's health commission said on Sunday seven of the 59 patients were seriously ill but none had died. Eight patients have recovered and were discharged from hospital on Wednesday, according to Xinhua.

BTS to Debut New Album ‘Map of the Soul: 7’ in February BTS became the first band to reach this record since The Beatles , who earned that accolade with their 1995-96 Anthology trilogy. The album is the sequel to the act's Billboard 200 chart-topper EP Map of the Soul: Persona , released in April a year ago .

TiVo might not release an Apple TV app after all TiVo might not release an Apple TV app after all Additionally, the product will feature TiVo+ as the preferred source of free, ad-sponsored television and movies. The design of the Stream 4K is not particularly small, but it should be neatly positioned behind most TVs.

Ford will buy first two bipedal robots for commercial vehicle research Ford will buy first two bipedal robots for commercial vehicle research Robotics Agility Digit , a two-legged robot that can lift 40-pound packages, is putting on the market. Digit , first shown in May 2019, has two arms and two legs, but no head.

Samsung estimates a massive 53% drop in profit for 2019 Samsung estimates a massive 53% drop in profit for 2019 That beats analyst expectations: Reuters said that Refinitiv SmartEstimate predicted operating profits of just 6.5 trillion won. The first quarter of 2019 set the tone for a tough year when Samsung posted its lowest quarterly profit in three years .

Iran Brands U.S. Military a Terrorist Organization (Again) Iran Brands U.S. Military a Terrorist Organization (Again) Trump and his advisers are under pressure to disclose more details about the intelligence that led to the USA strike. Parliament also agreed to bolster the coffers of the Quds Force by $244 million (200 million euros).

‘American Horror Story’ star Chloe Sevigny pregnant with first child ‘American Horror Story’ star Chloe Sevigny pregnant with first child In photos published by the outlet, Sevigny - and her growing baby bump - was seen walking around NY with her beau. This is the first time that Chloe will embrace motherhood and that too with her boyfriend Sinisa .

EXPLAINER: Pertinent questions answered on Iran, US boiling tensions EXPLAINER: Pertinent questions answered on Iran, US boiling tensions He also said that the Islamic Republic of Iran does not seek an escalation of the war which he said was started by the US. The plane had taken off from Imam Khomeini International Airport and mechanical issues were suspected, the report said.

Avalanche blows 2-0 lead, fall for Rangers in regulation Avalanche blows 2-0 lead, fall for Rangers in regulation At 15:23 of the first period, a nice passing game between DeAngelo and Zibanejad resulted in Zibanejad's 17th goal of the season. The Avalanche , who came in averaging an NHL-best 3.63 goals per game, scored twice on their first three shots.