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‘Runaway supermassive black hole’ mystery solved: Scientists find new explanation for unusual star structure
‘Runaway supermassive black hole’ mystery solved: Scientists find new explanation for unusual star structure
Scientists think they have found an explanation for what scientists thought was a “runaway” black hole speeding through the universe. Last month, scientists reported that they had seen what appeared to be an object unlike anything seen before. What originally appeared to be scratches on Hubble images was actually a black hole that had been thrown out from its home galaxy and was now speeding through the cosmos, scientists said. Astronomers had come to that conclusion after spotting a long trail of stars, formed 8 billion years ago. It was a stretched out, narrow shape, roughly the same size as our own Milky Way. Last month’s study suggested that those stars were the wake left behind from that runaway black hole. As the black hole travelled through a gas cloud, it left behind the right conditions to start forming stars, that study suggested. It was shock and a breakthrough for a number of reasons: it was unprecedented, and required a number of different conditions for it to be true. That led astronomers both to celebrate and question the theory, and in the time since other researchers have been working on their own ideas. Now scientists at the Instituto de Astrofísica de Canarias (IAC) have suggested their own, more ordinary explanation of the unusual, long star structure. They suggest that it is in fact just a flat or thin galaxy – one without a bulge that makes it wider – that is being seen from its side. “The motions, the size, and the quantity of stars fits what has been seen in galaxies within the local universe,” said Jorge Sanchez Almeida, an IAC researcher who is the first author of the article, in a statement. “It’s a relief to have found the solution to this mystery, the new proposed scenario is much simpler. In one sense it is also a pity, because the existence of fleeing black holes is expected, and this could have been the first one to be observed.” The team compared the mystery structure with another, much better known galaxy, named IC5249. That is near to us, has a similar mass of stars, and doesn’t have a galaxy either. They found that it was surprisingly similar. The stars were moving in similar ways to those found in closer, comparative galaxies, researchers said. That led scientists working on the new paper to suggest that it is a relatively normal and expected galaxy, rather than an out-of-control black hole. But they hope that further observations will shed further light on what exactly it is doing – and could still allow the galaxy to prove of interest to astronomers. “We also looked at the relation between the mass of the assumed galaxy and its maximum velocity of rotation, and discovered that indeed it is a galaxy which behaves like a galaxy,” said Ignacio Trujillo, an IAC researcher who worked on the study. “It is an interesting object, because it is quite a large galaxy at a very large distance from Earth, where the majority of the galaxies are smaller.” The proposal is reported in a paper, ‘Supermassive black hole wake or bulgeless edge-on galaxy?’, published in the journal Astronomy and Astrophysics. Read More Aliens may intercept human communication ‘within next 100 years’, study says Powerful auroras likely this week due to rare ‘backward’ sunspot Meteorite crashes through roof of New Jersey home Aliens may intercept human communication ‘within next 100 years’, study says Powerful auroras likely this week due to rare ‘backward’ sunspot Meteorite crashes through roof of New Jersey home
1970-01-01 08:00
Anna Netrebko: Top Russian soprano fired over war sues Met Opera
Anna Netrebko: Top Russian soprano fired over war sues Met Opera
Anna Netrebko was dropped by the Met Opera last year after refusing to denounce Russia's president.
2023-08-05 09:26
Emma Hayes: Winning Champions League would be fairytale end to time at Chelsea
Emma Hayes: Winning Champions League would be fairytale end to time at Chelsea
Emma Hayes admitted it would be a fairytale end to her Chelsea career by lifting the Women’s Champions League for the first time at the end of the season. Hayes will end her 12-year stay with the west-London club after this campaign. The Champions League is the one major trophy that has eluded the 47-year-old during that time, with the Blues having lost 4-0 in the 2021 final to Barcelona and reached the semi-finals on three other occasions. Speaking ahead of Chelsea’s opening Group D fixture v Real Madrid, Hayes told a press conference: “It would be a fairytale to win it, of course. But I didn’t grow up liking fairytales – my sister did. “I would love nothing more than to be in a winning position with this team.” Chelsea beat Real 2-0 at Kingsmeadow last season courtesy of goals from Sophie Ingle and Erin Cuthbert before they drew 1-1 in the Spanish capital. And Hayes, who highlighted the threat of left-back Olga Carmona, believes the experience of playing Wednesday’s opponents has helped her side’s preparations. She added: “We have analysed last season’s match and Real Madrid’s other matches, including this weekend’s match (7-1 win v Real Sociedad). We know what to expect. “I think having been here helps, it’s something familiar, but we don’t underestimate them. “They have many qualities, but I think they have the best on the extremes. The ability to go upwards, especially on the left with Olga. She is a mentor, a coach, a friend, life coach - it's more than football playing under her. Millie Bright “They have players looking for the back and putting balls into the area and they are very good in transition.” Chelsea captain Millie Bright admitted the news of Hayes’ departure is “devastating”. She said: “It’s been a bit of a whirlwind. I was devastated. “She is a mentor, a coach, a friend, life coach – it’s more than football playing under her. It is the hard part of football. I feel privileged to have played under her for so long.”
2023-11-15 04:07
Nationals rough up Phillies' Michael Lorenzen in 1st start since no-hitter, post 8-7 victory
Nationals rough up Phillies' Michael Lorenzen in 1st start since no-hitter, post 8-7 victory
CJ Abrams hit a three-run homer to cap a six-run fourth inning, and the Washington Nationals defeated the Philadelphia Phillies 8-7 to spoil Michael Lorenzen’s first start since throwing a no-hitter nine days earlier
2023-08-19 10:00
Avanci Broadcast adds ETRI, KPN, NEC and NERC-DTV as Licensors
Avanci Broadcast adds ETRI, KPN, NEC and NERC-DTV as Licensors
DALLAS--(BUSINESS WIRE)--May 22, 2023--
2023-05-22 20:00
New Warriors GM lays out 3 biggest needs for next season
New Warriors GM lays out 3 biggest needs for next season
Mike Dunleavy Jr. will be thrown right into the fire, taking over as Warriors GM just days before the draft and free agency. What can he accomplish?The new GM of the Warriors, Mike Dunleavy Jr. has given out his three bullet point goals for the Warriors this offseason during his first presser wi...
2023-06-20 22:28
David Dellin Named CEO of the American Paint Horse Association Family of Brands
David Dellin Named CEO of the American Paint Horse Association Family of Brands
FORT WORTH, Texas--(BUSINESS WIRE)--Oct 16, 2023--
2023-10-17 00:44
Pep Guardiola delivers expletive-ridden reaction to Man City’s Champions League win
Pep Guardiola delivers expletive-ridden reaction to Man City’s Champions League win
Pep Guardiola insisted it was “written in the stars” during an expletive-ridden reaction to Manchester City securing the Champions League and treble. Rodri’s goal was enough to clinch a 1-0 win in Istanbul over Inter Milan, which also represented the Spanish manager’s second European treble of his career, 14 years after his first with Barcelona. And Guardiola could not hide his relief at edging out the Italians in the final, lauding his team’s “patience” after a tough start. “Tired, calm, satisfied,” Guardiola told BT Sport. “This f***ing trophy, it's so difficult to win it. “It's impossible. It could have gone differently, we knew it, they are really good. Antonio Conte will learn a lot what they do. It's quite similar, They bring you up, they find strikers, link well to feet, then after they run to the other side. The first half we were anxious. “It's a question to be patient. Last time we were 1-0 down in Porto, this time, 0-0, you have to be lucky. Ederson's save, they missed it. This competition is a coin. It was written in the stars. We did it.” Guardiola also bemoaned the length of the season with many players now due to play international matches. “Right now I have no energy to think of the next season, we need a break, the season is too long,” Guardiola added. “Most go to the national team to play games, Uefa, Fifa, think about it, come on. “The Premier League finished two to three weeks ago. These guys will have two to three weeks off and then start again, it’s too much. Next season we’ll start from zero.” Read More Kyle Walker reveals six-word message to Man City teammates ahead of Champions League win Pep Guardiola ended 12 years of hurt thanks to masterful midfield reinvention Man City secure landmark Champions League victory that stretches beyond historic treble
2023-06-11 06:23
What’s the Point of a “Wait for Green” Traffic Sign?
What’s the Point of a “Wait for Green” Traffic Sign?
The meaning of the “wait for green” traffic sign is less redundant than it seems.
2023-11-28 22:00
Moderate US Republicans call for change to rule that eased McCarthy's ouster
Moderate US Republicans call for change to rule that eased McCarthy's ouster
By Moira Warburton WASHINGTON A growing number of moderate Republicans in the U.S. House of Representatives on Wednesday
2023-10-05 05:28
F1 Qatar Grand Prix LIVE: Sprint race shootout updates and times at Lusail
F1 Qatar Grand Prix LIVE: Sprint race shootout updates and times at Lusail
Max Verstappen took pole position for Sunday’s Qatar Grand Prix as the indomitable Dutchman closes in on his third world title. Verstappen will be crowned champion of the world if he finishes at least sixth in Saturday’s 19-lap race at the Lusail International Circuit. And the Red Bull driver started his quest to become just the 11th driver in history to win the title on more than two occasions in typically irresistible fashion by clocking the fastest time in qualifying. In terms of the championship mathematics, Verstappen’s pole lap for Sunday’s main event will be redundant if he secures three points in Saturday’s sprint – the starting order for which will be determined by a second qualifying session here on Saturday afternoon – or Sergio Perez fails finish inside the top three. The probability of both are high. As Verstappen raced to top spot, with George Russell and Lewis Hamilton securing second and third on the grid for Mercedes, Perez failed to make it out of Q2. Follow live updates from the Qatar Grand Prix with The Independent Read More How Qatar plans to make F1 grand prix their ‘new World Cup’ F1: How can Max Verstappen win 2023 world championship in Qatar? Fernando Alonso lauds Max Verstappen as best F1 driver since Michael Schumacher
2023-10-07 18:59
The stock market is dominated by just a handful of companies. The Biden administration is worried
The stock market is dominated by just a handful of companies. The Biden administration is worried
Just seven stocks -- Apple, Microsoft, Alphabet, Amazon, Nvidia, Tesla and Meta Platforms -- make up close to $11 trillion in market value and contributed about 75% of returns of the S&P 500 in the first half of 2023, according to a recent Bank of America report.
2023-07-25 19:31