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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.

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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 9,2020

New Delhi, May 9: The Trinamool Congress on Saturday responded to Union home minister Amit Shah’s charge that the Mamata Banerjee-led West Bengal government is not facilitating the movement of stranded migrant workers.

Amit Shah has written to West Bengal chief minister Mamata Banerjee, saying her government is doing “injustice” to migrant workers by not allowing the special Shramik trains to reach the state.

“Union home minister Amit Shah speaks after weeks of silence only to mislead people with lies,” the TMC’s Abhishek Banerjee was quoted as saying by news agency PTI.

“The Centre is lying… West Bengal is running 711 camps for migrants in the state. We are taking good care of them,” Abhishek Banerjee, who is also the chief minister’s nephew, said.

Amit Shah had pointed out in his letter that the Centre was not receiving the “expected support” from the state government in helping stranded migrant workers from West Bengal.

“West Bengal government is not allowing trains with migrants reaching the state. This is injustice with WB migrant labourers. This will create further hardship for them,” Amit Shah had said in his letter to Mamata Banerjee.

The issue of migrant workers is the latest flashpoint between the Centre and the West Bengal government amid a row over the state’s efforts to control the coronavirus disease (Covid-19).

The Centre and the state have exchanged allegations over the criteria for reporting deaths from the infection, and while While Bengal says the Centre is trying to politicise a public health crisis, the Union government maintains that state officials are ignoring repeated warnings to step up the fight against the disease.

Federal officials have said that the region has not conducted adequate tests and that there has been mismanagement over identifying hotspots and containing them.

Union home secretary Ajay Bhalla also slammed the state government for a very low rate of testing and high rate of mortality, 13.2%, by far the highest for any state.

The Centre has also accused the state government of not allowing cross-border movement of goods trucks to Bangladesh.

There are 1,678 Covid-19 cases and 160 deaths in West Bengal until Saturday morning.

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News Network
August 6,2020

New Delhi Aug 6: In a new twist in the Vijay Mallya case, a certain document connected with the case in the Supreme Court has gone missing from the apex court files. 

A bench comprising Justices U.U. Lalit and Ashok Bhushan adjourned the hearing to August 20.

It was hearing the review plea filed by Mallya against a July 14, 2017 judgment wherein he was found guilty of contempt for not paying Rs 9,000 crore dues to banks despite repeated directions, although he had transferred $40 million to his children.

The bench was looking for a reply on an intervention application, which it seemed has gone missing from the case papers.Parties involved in the case sought more time to file fresh copies.

On June 19, the Supreme Court sought explanation from its registry regarding Mallya's appeal against the May 2017 conviction in the contempt case for not repaying Rs 9,000 crore dues to banks not listed for the last 3 years.

A bench comprising Justices Lalit and Bhushan had asked the Registry to furnish all the details including names of the officials who had dealt with the file concerning the Review Petition for last three years.

The bench said according to the record, placed before it, the review petition was not listed before the court for last three years. "Before we deal with the submissions raised in the Review Petition, we direct the Registry to explain why the Review Petition was not listed before the concerned Court for last three years," said the bench.In May 2017, the apex court held him guilty of contempt of court for transferring $40 million to his children, and ordered him to appear on July 10 to argue on the quantum of punishment.

The bench said let the explanation be furnished within two weeks. "The Review Petition shall, thereafter, be considered on merits," it added.In 2017, the apex court passed the order on a contempt petition against Mallya by a consortium of banks led by the SBI. 

The banks claimed Mallya transferred $40 million from Daigeo to his children's accounts, and did not use this money to clear his debt. Banks cited this as violation of judicial orders.

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News Network
January 12,2020

Kolkata, Jan 12: Prime Minister Narendra Modi on Sunday said a section of the youth is being misguided about the Citizenship Amendment Act and asserted that it will not take away anybody's citizenship.

Modi also said whoever has faith in India and believes in its Constitution can become an Indian citizen.

“There are a lot of questions among the youth about the new citizenship law, and some are being misled by rumours around it... it is our duty to clear their doubts,” the PM said during an address at Belur Math in Howrah district.

“I want to make this clear again that the CAA is not about taking away anybody's citizenship, but about granting citizenship,” he added.

Modi said that some people with political interests are deliberately spreading rumours about the new citizenship law.

Lauding the youth for speaking against religious persecution of minorities, the prime minister said the energy of the country's young will form the basis of change in the 21st century. The PM is on a two-day visit to the city.

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