A professor in Abu Dhabi has found a rare black hole at the centre of a small and distant galaxy.
It was discovered in the IC 750 galaxy – about 45 million light years away – and is unique because of its intermediate size, which is difficult to find.
The discovery could provide an insight into the mysteries of supermassive black holes and their host galaxies.
Black holes form when a massive star collapses and starts to suck in nearby stars – not even light can escape their pull.
There is limited data about supermassive and small, or stellar, black holes, and scientists have been trying to learn more about intermediates.
Prof Ingyin Zaw, an associate professor of physics at NYU Abu Dhabi, revealed the black hole is 100 times too small relative to the galaxy it lives in.
This is unique as black holes and galaxies are known to grow equally together.
“One of the questions my research touches on is: are there any black holes in the intermediate range?
“Even though the black holes themselves are much smaller than their host galaxies, somehow it’s like they know about each other’s mass,” Prof Zaw said.
The mass of a black hole is usually measured in solar mass, which is the mass of the Sun. A small black hole has a mass of between about three and 10 solar masses and is formed when a star explodes, while a supermassive black hole is huge, with millions to billions of solar masses, and is thought to involve many stars.
But not much is known about how intermediates form.
Prof Zaw’s findings raise questions of whether intermediate black holes in small galaxies grow differently than supermassive and small ones.
Her research was funded by Mohammed bin Rashid Space Centre and the findings were published in The Astrophysical Journal.
In 2019, an image of a black hole was revealed by scientists for the first time, specifically of a supermassive one in the M87 galaxy.
It had a mass more than six billion times that of the Sun, and the picture helped to prove astronomers’ theories about gargantuan black holes.
Prof Zaw and her team used the very long baseline array – 10 telescopes spread out between Hawaii and the US Virgin Islands that act as one big telescope – to obtain radio observations of the low-mass galaxy.
They studied the water maser emissions, which are audio frequencies of electromagnetic waves, to understand the black hole’s mass. These were being emitted from clouds of water vapour that were orbiting the black hole.
The team is now carrying out follow-up studies of the black hole to improve the measurement of its mass and determine how much material is falling into it.
They are also searching for water emissions from other small galaxies.
Once complete, it is hoped the study will shed more light on mysteries of how black holes are formed.
Company profile
Date started: 2015
Founder: John Tsioris and Ioanna Angelidaki
Based: Dubai
Sector: Online grocery delivery
Staff: 200
Funding: Undisclosed, but investors include the Jabbar Internet Group and Venture Friends
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.”
ENGLAND SQUAD
Team: 15 Mike Brown, 14 Anthony Watson, 13 Ben Te'o, 12 Owen Farrell, 11 Jonny May, 10 George Ford, 9 Ben Youngs, 1 Mako Vunipola, 2 Dylan Hartley, 3 Dan Cole, 4 Joe Launchbury, 5 Maro Itoje, 6 Courtney Lawes, 7 Chris Robshaw, 8 Sam Simmonds
Replacements 16 Jamie George, 17 Alec Hepburn, 18 Harry Williams, 19 George Kruis, 20 Sam Underhill, 21 Danny Care, 22 Jonathan Joseph, 23 Jack Nowell
Scoreline
Liverpool 4
Oxlade-Chamberlain 9', Firmino 59', Mane 61', Salah 68'
Manchester City 3
Sane 40', Bernardo Silva 84', Gundogan 90' 1
Expert input
If you had all the money in the world, what’s the one sneaker you would buy or create?
“There are a few shoes that have ‘grail’ status for me. But the one I have always wanted is the Nike x Patta x Parra Air Max 1 - Cherrywood. To get a pair in my size brand new is would cost me between Dh8,000 and Dh 10,000.” Jack Brett
“If I had all the money, I would approach Nike and ask them to do my own Air Force 1, that’s one of my dreams.” Yaseen Benchouche
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“If I had all the money in the world, I’d live somewhere where I’d never have to wear shoes again.” Raj Malhotra
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Sole survivors
- Cecelia Crocker was on board Northwest Airlines Flight 255 in 1987 when it crashed in Detroit, killing 154 people, including her parents and brother. The plane had hit a light pole on take off
- George Lamson Jr, from Minnesota, was on a Galaxy Airlines flight that crashed in Reno in 1985, killing 68 people. His entire seat was launched out of the plane
- Bahia Bakari, then 12, survived when a Yemenia Airways flight crashed near the Comoros in 2009, killing 152. She was found clinging to wreckage after floating in the ocean for 13 hours.
- Jim Polehinke was the co-pilot and sole survivor of a 2006 Comair flight that crashed in Lexington, Kentucky, killing 49.
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What is type-1 diabetes
Type 1 diabetes is a genetic and unavoidable condition, rather than the lifestyle-related type 2 diabetes.
It occurs mostly in people under 40 and a result of the pancreas failing to produce enough insulin to regulate blood sugars.
Too much or too little blood sugar can result in an attack where sufferers lose consciousness in serious cases.
Being overweight or obese increases the chances of developing the more common type 2 diabetes.
The specs: 2018 Nissan Patrol Nismo
Price: base / as tested: Dh382,000
Engine: 5.6-litre V8
Gearbox: Seven-speed automatic
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Fuel economy, combined: 12.7L / 100km
Heather, the Totality
Matthew Weiner,
Canongate
Classification of skills
A worker is categorised as skilled by the MOHRE based on nine levels given in the International Standard Classification of Occupations (ISCO) issued by the International Labour Organisation.
A skilled worker would be someone at a professional level (levels 1 – 5) which includes managers, professionals, technicians and associate professionals, clerical support workers, and service and sales workers.
The worker must also have an attested educational certificate higher than secondary or an equivalent certification, and earn a monthly salary of at least Dh4,000.
