New research using Nasa's powerful James Webb Space Telescope has shed light on how ancient black holes grew so massive and so rapidly that they surpassed the galaxies around them.
Led by a team of astronomers from the Massachusetts Institute of Technology (MIT) in the US, the study focused on the centres of galaxies known as quasars.
Quasars are extremely bright because they are powered by supermassive black holes, the largest type of a black hole that is more than 100,000 times the mass of the Sun.
A supermassive black hole's gravitational pull is so strong that it devours everything nearby, including light. The more it consumes, the brighter that quasar becomes.
But this intense light makes it difficult for scientists to see the stars in the surrounding galaxy.
But with the advanced imaging capabilities of the James Webb Space Telescope, MIT researchers were able to distinguish the faint light from stars around the black holes in some ancient quasars, dating back more than 13 billion years.
Using this data, the team found that these ancient supermassive black holes were much larger compared to the size of their surrounding galaxies than black holes today.
The study, published in the Astrophysical Journal, suggests that ancient black holes grew significantly faster than their host galaxies, with the black hole-to-galaxy mass ratio of around 1:10 compared to a modern-day ratio of 1:1,000.
“These black holes are billions of times more massive than the Sun, at a time when the universe is still in its infancy,” said Anna-Christina Eilers, co-author of the study.
“Our results imply that, in the early universe, supermassive black holes might have gained their mass before their host galaxies did and the initial black hole seeds could have been more massive than today.”
What came first: galaxy or black hole?
The researchers were able to gather this data using measurements of each quasar's light in different wavelengths.
They fed the numbers into a model that showed how much of that light was likely to come from the source itself or the galaxy's surroundings, such as scattered stars.
“This tells us something about what grows first: is it the black hole that grows first, and then the galaxy catches up? Or is the galaxy and its stars that first grow, and they dominate and regulate the black hole’s growth?” Ms Eilers said.
“We see that black holes in the early universe seem to be growing faster than their host galaxies. That is tentative evidence that the initial black hole seeds could have been more massive back then.”
Black holes may have boosted galaxy formation
A different study in February by the Johns Hopkins University focused on how black holes may have accelerated the birth of stars and supercharged galaxy formation.
The researchers, who also used the James Webb Space Telescope to make the observations, said distant galaxies appeared much brighter than they had predicted and revealed unusually high numbers of young stars and supermassive black holes.
It was always previously believed that black holes formed only after the collapse of enormous stars, with galaxies forming after the first stars lit up the early universe.
But the research suggests that black holes and galaxies may have coexisted and influenced each other during the first 100 million years.
“The big question is, what were our beginnings? The Sun is one star in 100 billion in the Milky Way galaxy, and there's a massive black hole sitting in the middle, too. What's the connection between the two?” said Joseph Silk, a professor in the department of physics and astronomy at Johns Hopkins University.
“Within a year we'll have so much better data, and a lot of our questions will begin to get answers.”
Naga
%3Cp%3E%3Cstrong%3EDirector%3A%C2%A0%3C%2Fstrong%3EMeshal%20Al%20Jaser%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%C2%A0%3C%2Fstrong%3EAdwa%20Bader%2C%20Yazeed%20Almajyul%2C%20Khalid%20Bin%20Shaddad%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E4%2F5%3C%2Fp%3E%0A
Citadel: Honey Bunny first episode
Directors: Raj & DK
Stars: Varun Dhawan, Samantha Ruth Prabhu, Kashvi Majmundar, Kay Kay Menon
Rating: 4/5
MATCH INFO
Newcastle United 2 (Willems 25', Shelvey 88')
Manchester City 2 (Sterling 22', De Bruyne 82')
Women’s World T20, Asia Qualifier
UAE results
Beat China by 16 runs
Lost to Thailand by 10 wickets
Beat Nepal by five runs
Beat Hong Kong by eight wickets
Beat Malaysia by 34 runs
Standings (P, W, l, NR, points)
1. Thailand 5 4 0 1 9
2. UAE 5 4 1 0 8
3. Nepal 5 2 1 2 6
4. Hong Kong 5 2 2 1 5
5. Malaysia 5 1 4 0 2
6. China 5 0 5 0 0
Final
Thailand v UAE, Monday, 7am
Islamic%20Architecture%3A%20A%20World%20History
%3Cp%3E%3Cstrong%3EAuthor%3A%3C%2Fstrong%3E%20Eric%20Broug%3Cbr%3E%3Cstrong%3EPublisher%3A%3C%2Fstrong%3E%20Thames%20%26amp%3B%20Hudson%3Cbr%3E%3Cstrong%3EPages%3A%3C%2Fstrong%3E%20336%3Cbr%3E%3Cstrong%3EAvailable%3A%3C%2Fstrong%3E%20September%3C%2Fp%3E%0A
Persuasion
%3Cp%3E%3Cstrong%3EDirector%3A%20%3C%2Fstrong%3ECarrie%20Cracknell%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStars%3A%20%3C%2Fstrong%3EDakota%20Johnson%2C%20Cosmo%20Jarvis%2C%20Richard%20E%20Grant%2C%20Henry%20Golding%20and%20Nikki%20Amuka-Bird%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%201.5%2F5%3C%2Fp%3E%0A
The%20Hunger%20Games%3A%20The%20Ballad%20of%20Songbirds%20%26%20Snakes
%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%C2%A0Francis%20Lawrence%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStars%3A%C2%A0%3C%2Fstrong%3ERachel%20Zegler%2C%20Peter%20Dinklage%2C%20Viola%20Davis%2C%20Tom%20Blyth%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E3%2F5%3C%2Fp%3E%0A
Profile box
Founders: Michele Ferrario, Nino Ulsamer and Freddy Lim
Started: established in 2016 and launched in July 2017
Based: Singapore, with offices in the UAE, Malaysia, Hong Kong, Thailand
Sector: FinTech, wealth management
Initial investment: $500,000 in seed round 1 in 2016; $2.2m in seed round 2 in 2017; $5m in series A round in 2018; $12m in series B round in 2019; $16m in series C round in 2020 and $25m in series D round in 2021
Current staff: more than 160 employees
Stage: series D
Investors: EightRoads Ventures, Square Peg Capital, Sequoia Capital India
The%C2%A0specs%20
%3Cp%3E%3Cstrong%3EEngine%3A%3C%2Fstrong%3E%20Dual%20synchronous%20electric%20motors%20%20%0D%3Cbr%3E%3Cstrong%3EPower%3A%20%3C%2Fstrong%3E646hp%0D%3Cbr%3E%3Cstrong%3ETorque%3A%20%3C%2Fstrong%3E830Nm%0D%3Cbr%3E%3Cstrong%3ETransmission%3A%20%3C%2Fstrong%3ETwo-speed%20auto%20(rear%20axle)%3B%20single-speed%20auto%20(front)%20%0D%3Cbr%3E%3Cstrong%3EPrice%3A%20%3C%2Fstrong%3EFrom%20Dh552%2C311%3B%20Dh660%2C408%20(as%20tested)%0D%3Cbr%3E%3Cstrong%3EOn%20sale%3A%20%3C%2Fstrong%3Enow%3C%2Fp%3E%0A
Most sought after workplace benefits in the UAE
- Flexible work arrangements
- Pension support
- Mental well-being assistance
- Insurance coverage for optical, dental, alternative medicine, cancer screening
- Financial well-being incentives
Panipat
Director Ashutosh Gowariker
Produced Ashutosh Gowariker, Rohit Shelatkar, Reliance Entertainment
Cast Arjun Kapoor, Sanjay Dutt, Kriti Sanon, Mohnish Behl, Padmini Kolhapure, Zeenat Aman
Rating 3 /5 stars
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.”
MATCH INFO
What: India v Afghanistan, first Test
When: Starts Thursday
Where: M Chinnaswamy Stadium, Bengalaru
How much of your income do you need to save?
The more you save, the sooner you can retire. Tuan Phan, a board member of SimplyFI.com, says if you save just 5 per cent of your salary, you can expect to work for another 66 years before you are able to retire without too large a drop in income.
In other words, you will not save enough to retire comfortably. If you save 15 per cent, you can forward to another 43 working years. Up that to 40 per cent of your income, and your remaining working life drops to just 22 years. (see table)
Obviously, this is only a rough guide. How much you save will depend on variables, not least your salary and how much you already have in your pension pot. But it shows what you need to do to achieve financial independence.
DMZ facts
- The DMZ was created as a buffer after the 1950-53 Korean War.
- It runs 248 kilometers across the Korean Peninsula and is 4km wide.
- The zone is jointly overseen by the US-led United Nations Command and North Korea.
- It is littered with an estimated 2 million mines, tank traps, razor wire fences and guard posts.
- Donald Trump and Kim Jong-Un met at a building in Panmunjom, where an armistice was signed to stop the Korean War.
- Panmunjom is 52km north of the Korean capital Seoul and 147km south of Pyongyang, North Korea’s capital.
- Former US president Bill Clinton visited Panmunjom in 1993, while Ronald Reagan visited the DMZ in 1983, George W. Bush in 2002 and Barack Obama visited a nearby military camp in 2012.
- Mr Trump planned to visit in November 2017, but heavy fog that prevented his helicopter from landing.
The%20specs
%3Cp%3E%3Cstrong%3EEngine%3A%3C%2Fstrong%3E%201.5-litre%204-cylinder%3Cbr%3E%3Cstrong%3ETransmission%3A%20%3C%2Fstrong%3ECVT%3Cbr%3E%3Cstrong%3EPower%3A%20%3C%2Fstrong%3E119bhp%3Cbr%3E%3Cstrong%3ETorque%3A%20%3C%2Fstrong%3E145Nm%3Cbr%3E%3Cstrong%3EPrice%3A%20%3C%2Fstrong%3EDh%2C89%2C900%20(%2424%2C230)%3Cbr%3E%3Cstrong%3EOn%20sale%3A%20%3C%2Fstrong%3Enow%3C%2Fp%3E%0A
The President's Cake
Director: Hasan Hadi
Starring: Baneen Ahmad Nayyef, Waheed Thabet Khreibat, Sajad Mohamad Qasem
Rating: 4/5
Countries recognising Palestine
France, UK, Canada, Australia, Portugal, Belgium, Malta, Luxembourg, San Marino and Andorra
THE SPECS
Engine: 4.4-litre V8
Transmission: Automatic
Power: 530bhp
Torque: 750Nm
Price: Dh535,000
On sale: Now
Wicked: For Good
Director: Jon M Chu
Starring: Ariana Grande, Cynthia Erivo, Jonathan Bailey, Jeff Goldblum, Michelle Yeoh, Ethan Slater
Rating: 4/5
Russia's Muslim Heartlands
Dominic Rubin, Oxford
The biog
Favourite book: Homegoing by Yaa Gyasi
Favourite holiday destination: Spain
Favourite film: Bohemian Rhapsody
Favourite place to visit in the UAE: The beach or Satwa
Children: Stepdaughter Tyler 27, daughter Quito 22 and son Dali 19
Top%2010%20most%20competitive%20economies
%3Cp%3E1.%20Singapore%0D%3Cbr%3E2.%20Switzerland%0D%3Cbr%3E3.%20Denmark%0D%3Cbr%3E4.%20Ireland%0D%3Cbr%3E5.%20Hong%20Kong%0D%3Cbr%3E6.%20Sweden%0D%3Cbr%3E7.%20UAE%0D%3Cbr%3E8.%20Taiwan%0D%3Cbr%3E9.%20Netherlands%0D%3Cbr%3E10.%20Norway%0D%3Cbr%3E%3C%2Fp%3E%0A
