A colossal cosmic explosion that took place nearly 8 billion light-years away is the largest ever witnessed, astronomers said on Friday.
Scientists think the blast could have been caused by a cloud of mostly hydrogen gas many times bigger than the sun being sucked into a supermassive black hole.
The gas being swallowed is thought to have sent shock waves through the remaining gas, causing an explosion 10 times brighter than an exploding star, called a supernova.
Although first spotted in 2020 by a facility in California, the scale of the explosion, called AT2021lwx, was previously unknown.
It took place when the universe was about six billion years old.
Scientists from the University of Southampton in the UK used a selection of telescopes run by European nations and Nasa to view and measure the size of the blast.
They concluded it to be the largest on record, having lasted more than three years. Most supernovae are only visibly bright for a few months.
Their study was published in the Monthly Notices of the Royal Astronomical Society on Friday.
“We came upon this by chance, as it was flagged by our search algorithm when we were searching for a type of supernova,” said research leader Philip Wiseman, research fellow at the University of Southampton.
“Most supernovae and tidal disruption events only last for a couple of months before fading away. For something to be bright for two-plus years was immediately very unusual.”
How was the blast measured?
Measuring the size of an explosion occurring so far away is not as easy as just getting out the ruler.
The team had to analyse the spectrum of light emitted from the blast in great detail to work out distances.
“Once you know the distance to the object and how bright it appears to us, you can calculate the brightness of the object at its source,” said Sebastian Hoenig of the University of Southampton, a co-author of the research.
“Once we’d performed those calculations, we realised this is extremely bright,”
There is so much more to be measured about the blast, including temperature,
Emerging technology may also help the team to test their theory on the causes behind AT2021lwx.
“It could be that these events, although extremely rare, are so energetic that they are key processes to how the centres of galaxies change over time.”
Tentative schedule of 2017/18 Ashes series
1st Test November 23-27, The Gabba, Brisbane
2nd Test December 2-6, Adelaide Oval, Adelaide
3rd Test Dcember 14-18, Waca, Perth
4th Test December 26-30, Melbourne Cricket Ground, Melbourne
5th Test January 4-8, Sydney Cricket Ground, Sydney
Tearful appearance
Chancellor Rachel Reeves set markets on edge as she appeared visibly distraught in parliament on Wednesday.
Legislative setbacks for the government have blown a new hole in the budgetary calculations at a time when the deficit is stubbornly large and the economy is struggling to grow.
She appeared with Keir Starmer on Thursday and the pair embraced, but he had failed to give her his backing as she cried a day earlier.
A spokesman said her upset demeanour was due to a personal matter.
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Tips on buying property during a pandemic
Islay Robinson, group chief executive of mortgage broker Enness Global, offers his advice on buying property in today's market.
While many have been quick to call a market collapse, this simply isn’t what we’re seeing on the ground. Many pockets of the global property market, including London and the UAE, continue to be compelling locations to invest in real estate.
While an air of uncertainty remains, the outlook is far better than anyone could have predicted. However, it is still important to consider the wider threat posed by Covid-19 when buying bricks and mortar.
Anything with outside space, gardens and private entrances is a must and these property features will see your investment keep its value should the pandemic drag on. In contrast, flats and particularly high-rise developments are falling in popularity and investors should avoid them at all costs.
Attractive investment property can be hard to find amid strong demand and heightened buyer activity. When you do find one, be prepared to move hard and fast to secure it. If you have your finances in order, this shouldn’t be an issue.
Lenders continue to lend and rates remain at an all-time low, so utilise this. There is no point in tying up cash when you can keep this liquidity to maximise other opportunities.
Keep your head and, as always when investing, take the long-term view. External factors such as coronavirus or Brexit will present challenges in the short-term, but the long-term outlook remains strong.
Finally, keep an eye on your currency. Whenever currency fluctuations favour foreign buyers, you can bet that demand will increase, as they act to secure what is essentially a discounted property.
The Dark Blue Winter Overcoat & Other Stories From the North
Edited and Introduced by Sjón and Ted Hodgkinson
Pushkin Press
Under 19 World Cup
Group A: India, Japan, New Zealand, Sri Lanka
Group B: Australia, England, Nigeria, West Indies
Group C: Bangladesh, Pakistan, Scotland, Zimbabwe
Group D: Afghanistan, Canada, South Africa, UAE
UAE fixtures
Saturday, January 18, v Canada
Wednesday, January 22, v Afghanistan
Saturday, January 25, v South Africa
Racecard:
6.30pm: Mazrat Al Ruwayah (PA) | Group 2 | US$55,000 (Dirt) | 1,600 metres
7.05pm: Meydan Sprint (TB) | Group 2 | $250,000 (Turf) | 1,000m
7.40pm: Firebreak Stakes | Group 3 | $200,000 (D) | 1,600m
8.15pm: Meydan Trophy | Conditions (TB) | $100,000 (T) | 1,900m
8.50pm: Balanchine | Group 2 (TB) | $250,000 (T) | 1,800m
9.25pm: Handicap (TB) | $135,000 (D) | 1,200m
10pm: Handicap (TB) | $175,000 (T) | 2,410m.
Desert Warrior
Starring: Anthony Mackie, Aiysha Hart, Ben Kingsley
Director: Rupert Wyatt
Rating: 3/5
THE BIO: Martin Van Almsick
Hometown: Cologne, Germany
Family: Wife Hanan Ahmed and their three children, Marrah (23), Tibijan (19), Amon (13)
Favourite dessert: Umm Ali with dark camel milk chocolate flakes
Favourite hobby: Football
Breakfast routine: a tall glass of camel milk
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match info
Manchester United 3 (Martial 7', 44', 74')
Sheffield United 0
Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.
Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.
“Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.
Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.
“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.
Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.
From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.
Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.
BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.
Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.
Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.
“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.
Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.
“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.
“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”
The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”
The specs: Lamborghini Aventador SVJ
Price, base: Dh1,731,672
Engine: 6.5-litre V12
Gearbox: Seven-speed automatic
Power: 770hp @ 8,500rpm
Torque: 720Nm @ 6,750rpm
Fuel economy: 19.6L / 100km
Napoleon
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