Astronomers discover 83 supermassive black holes 13 billion light-years away

Agencies
March 15, 2019

Washington, Mar 15: Astronomers have discovered 83 quasars powered by supermassive black holes 13 billion light-years away from the Earth, from a time when the universe was less than 10 per cent of its present age.

“It is remarkable that such massive dense objects were able to form so soon after the Big Bang,” said Michael Strauss, a professor at Princeton University in the US.

“Understanding how black holes can form in the early universe, and just how common they are, is a challenge for our cosmological models,” Strauss said in a statement.

This finding, published in The Astrophysical Journal, increases the number of black holes known at that epoch  considerably, and reveals, for the first time, how common they are early in the universe’s history.

In addition, it provides new insight into the effect of black holes on the physical state of gas in the early universe in its first billion years.

Supermassive black holes, found at the centers of galaxies, can be millions or even billions of times more massive than the Sun.

While they are prevalent today, it is unclear when they first formed, and how many existed in the distant early universe.

A supermassive black hole becomes visible when gas accretes onto it, causing it to shine as a “quasar.” Previous studies have been sensitive only to the very rare, most luminous quasars, and thus the most massive black holes.

The new discoveries probe the population of fainter quasars, powered by black holes with masses comparable to most black holes seen in the present-day universe.

The team used data taken with “Hyper Suprime-Cam” (HSC) instrument, mounted on the Subaru Telescope of the National Astronomical Observatory of Japan, which is located on the summit of Maunakea in Hawaii.

The researchers selected distant quasar candidates from the sensitive HSC survey data.

They then carried out an intensive observational campaign to obtain spectra of those candidates, using three telescopes: the Subaru Telescope; the Gran Telescopio Canarias on the island of La Palma in the Canaries, Spain; and the Gemini South Telescope in Chile.

The survey revealed 83 previously unknown very distant quasars.

Comments

ABDUL AZIZ SHE…
 - 
Saturday, 16 Mar 2019

SUBHAANALLAH

 

 
ALLAH ALMIGHTY CREATED EVERTHING  INCLUDING WHOLE UNIVERSE AND WHAT IS IN IT,

HUMAN BEING CANNOT REACH TO UNDERSTAND IT,  HUMAN LIFE NOT SUFFEICENT TO REACH AND KNOW EVERYTHING.

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News Network
May 26,2020

Warangal, May 26: A 26-year-old man from Bihar was arrested here for murdering nine people by throwing them into a well to cover the murder of a woman, police said on Monday.

Dr Ravinder, Commissioner of Police (CP), Warangal, said that the bodies were recovered on May 21 and May 22 from the well. Investigation has revealed that the accused, Sanjay Kumar Yadav, killed all of them to cover up the murder of Rafiqa, with whom he had a relationship.

He said that Yadav got acquainted with a person named Maqsood and his sister-in-law Rafiqa. "Slowly, he came close to Rafiqa and started living together with her three children. Yadav tried to misbehave with Rafiqa's 15-year-old daughter. Rafiqa did not like this and threatened to lodge a complaint against him," Ravinder said.

"Then, Yadav planned to kill Rafiqa in order to live with her daughter. Yadav promised Rafiqa to marry. They boarded a train to West Bengal from March 7. Yadav mixed sleeping tablets in the food packet and later strangulated her, and threw her body outside the train," he said.

According to police, Yadav later came back to Warangal but Maqsood's wife Nisha started questioning him about the whereabouts of Rafiqa.

"Nisha threatened to lodge a police complaint against him. With a premeditated motive, from May 16 to May 20, he visited Maqsood's family who stayed in a gunny bag factory," he said.

Yadav purchased sleeping pills from Warangal and mixed in the food on the birthday of Maqsood's elder son on May 20, police said.

"Maqsood and his five family members were living there. Yadav mixed sleeping pills in the food and later they consumed it. Maqsood's family friend Shakeel was also there. Then, he went to the first floor of the factory where two labourers were staying. He mixed sleeping pills in their food too. He suspected that they may get up and create a problem. To cover up the murder of Rafiqa, he killed nine people," Ravinder said.

At around 12:30 am, Yadav woke up and saw that everyone is asleep, according to police.

"Then, he used the gunny bags to drag all the nine people into the well. He threw the gunny bag one by one into the well," Ravinder said.

According to the police, six teams were deployed to investigate the case.

"Yadav has been arrested now and will be taken to police custody. We will collect all evidence and ensure that he gets maximum punishment for this offence," Ravinder said.

 

Comments

abdullah
 - 
Thursday, 4 Jun 2020

Yadav will be released by court saying that he is mentally sick and he did not kill 10 people intentionally.  

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News Network
February 11,2020

New Delhi, Feb 11: Celebrations broke out at the AAP headquarters here as early vote-counting trends for the Delhi Assembly polls on Tuesday showed a comfortable victory for the Chief Minister Arvind Kejriwal-led party.

The headquarters were decorated with blue and white balloons and big cut-outs of Kejriwal were placed in different parts of the party office.

"We knew it. We have changed the politics of this country. Now it is Delhi, next is India," said Sanjeev Singh, a party volunteer from Hari Nagar.

Another volunteer Fareen Khan said, "We hope we get such a clear majority that a message goes out that doing Hindu-Muslim politics will not work anymore."

The Aam Aadmi Party (AAP) is leading in 26 seats while the BJP is leading in 14 seats, according to early trends by the Election Commission.

According to the EC's website, AAP convenor Kejriwal is leading in his New Delhi constituency.

Kejriwal reached the party office as the counting of votes got underway.

Counting centres are spread across 21 locations, spanning 70 constituencies.

Polling for the 70-member Delhi Assembly was held on Saturday.

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News Network
March 10,2020

Mar 10: Indian energy tycoon Mukesh Ambani is no longer Asia’s richest man, relinquishing the title to Jack Ma after oil prices collapsed along with global stocks.

The rout, exacerbated by mounting fears that the spread of the novel coronavirus will thrust the world into a recession, erased $5.8 billion from Ambani’s net worth on Monday and pushed him to No. 2 on the list of Asia’s richest people, according to the Bloomberg Billionaires Index. Ma, the Alibaba Group Holding Ltd. founder who relinquished the No. 1 ranking in mid-2018, is back on top with a $44.5 billion fortune, about $2.6 billion more than Ambani.

Oil plunged the most in 29 years on Monday as Saudi Arabia and Russia vowed to pump more in a struggle for market share. The slump comes just as the coronavirus is spurring the first decline in demand in more than a decade. That raises questions about whether Ambani’s flagship Reliance Industries Ltd. will be able to cut net debt to zero by early 2021, as he has pledged. The plan hinges on a proposal to sell a stake in the group’s oil and petrochemicals division to Saudi Arabian Oil Co., the world’s biggest crude producer.

While the coronavirus has curtailed some of tech giant Alibaba’s businesses, the damage has been mitigated by increased demand for its cloud computing services and mobile apps.

Reliance Industries, by comparison, has no such silver lining. The Indian conglomerate’s shares plunged 12% on Monday, the most since 2009, extending this year’s decline to 26%. Alibaba’s American depositary receipts have slipped 6.8% so far in 2020.

Ma reclaims crown after Reliance shares were pummeled in 2020.

Few of the world’s billionaires fared well in Monday’s collapse as the S&P 500 Index and Dow Jones Industrial Average each plunged more than 7.5%, the most since the 2008 financial crisis, threatening to end the longest bull market in history. But no one did worse than those whose fortunes are underpinned by oil. Wildcatter Harold Hamm’s fortune was cut almost in half to $2.4 billion and fellow oil magnate Jeff Hildebrand lost $3 billion, bumping both from Bloomberg’s 500-member wealth ranking.

In a pivot toward new businesses such as telecommunications, technology and retail, Ambani’s Reliance Industries has piled on billions of dollars of debt over the years.

It spent almost $50 billion -- most of it funded by borrowings -- to build Reliance Jio Infocomm Ltd., which became India’s No. 1 wireless carrier within about three years of its debut. As the mobile venture took off, Ambani also unveiled plans for an e-commerce empire to rival Amazon.com Inc. in India.

Addressing concerns over the liabilities, Ambani pledged in August to cut the group’s net debt to zero from about $21 billion as of last March. The Aramco deal is crucial to that plan for which Reliance Industries has valued its oil-to-chemicals division at $75 billion including debt, implying a $15 billion valuation for the 20% stake that’s for sale.

Signs of a potential delay to that deal unnerved some investors, hammering the stock since it touched a record high on Dec. 19.

Reliance Industries expected the Aramco transaction to be completed by March, but people familiar with the matter said in February that talks were still ongoing to bridge differences between the two parties over the deal’s structure.

Adding to the uncertainty, Indian Prime Minister Narendra Modi’s administration has petitioned a court to halt the proposed stake sale, threatening a key source of funds needed to pare net debt.

But Ambani, 62, may soon bounce back from the setback, said Harish H.V., managing partner at ECube Investment Advisors in Bengaluru, India.

“The game isn’t over,” he said. “Ambani has successfully built a robust business model which would keep him in the game. Moreover, his telecom business will start yielding results in coming years.”

Comments

SmR
 - 
Tuesday, 10 Mar 2020

The curses of the bank depositors savings which vanished with collapsing economy and fraudlent seems to have gradully affecting riches of Ambani's.

 

AU
 - 
Tuesday, 10 Mar 2020

in Holy Quran Allah says; but they plan and Allah plans, and Allah is the best planners..(Surah Al Anfal 8:30)

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