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
February 11,2020

New Delhi, Feb 11: The government has decided to rename National Institute of Financial Management (NIFM), Faridabad, as Arun Jaitley National Institute of Financial Management, an official statement said on Tuesday.

Set up in 1993 as a registered society under the Department of Expenditure, NIFM trains officers of Finance and Accounts Services recruited by the Union Public Service Commission (UPSC) as also officers of Indian Cost Accounts Service. The Union Finance Minister is the President of the NIFM Society.

"Aligning the vision and aspiration of the Institute for the future with the vision and contribution of late Arun Jaitley, the Government has decided to rename National Institute of Financial Management (NIFM) as the Arun Jaitley National Institute of Financial Management(AJNIFM)," the statement said.

NIFM has become a premier resource centre to meet the training needs of the central government for senior and middle level of management in the fields of public policy, financial management, public procurement and other governance issues for promoting highest standards of professional competence and practice.

Padma Vibhushan awardee Jaitley was the Union Minister for Finance and Corporate Affairs during May 26, 2014 to May 30, 2019.

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News Network
January 28,2020

Nagpur, Jan 28: A 19-year-old woman was allegedly raped and an iron rod was inserted in her private parts by a man in the Pardi area here, police said on Monday.

The gruesome incident took place on January 21 and the accused, Yogilal Rahangdale (52), was arrested from Gondia district, they said.

The accused was working as a supervisor in a spinning mill where the woman was employed as a labourer, the police said.

The woman, her brother, the accused and another girl lived in rented accommodations in Pardi.

Inspector Sunil Chavan of the Pardi police station said that the woman's brother and her female friend had gone to their village on January 21 for some work.

As the woman was alone at home, Rahangdale attempted to rape her in the night. When she resisted, he stuffed a piece of cloth in her mouth, he said.

When she fell unconscious, the accused raped her and inserted an iron rod in her private parts, Chavan said, quoting from the complaint filed by the victim.

She narrated the incident to her brother on January 24 and they subsequently lodged a complaint with the police.

An offence was registered against the accused at the Pardi police station.

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News Network
January 19,2020

Mumbai, Jan 19: After Kerala and Punjab, the Maha Vikas Agadi (MVA) government is also mulling over a resolution against the Citizenship (Amendment) Act, 2019 in Maharashtra Assembly.

Speaking to news agency, Congress spokesperson Raju Waghmare said: "Our senior party leader Balasaheb Thorat has also shared his stand on the CAA. Even Chief Minister Uddhav Thackeray has said that we are against the CAA. As far as the resolution against CAA is concerned, our senior leaders of MVA will sit together and decide."

If this happens, then Maharashtra will be the third state to pass a resolution against CAA, which grants citizenship to non-Muslim refugees from Pakistan, Afghanistan, and Bangladesh, who came to India on or before December 31, 2014.

Emphasising that CAA is 'unconstitutional,' senior lawyer and Congress leader Kapil Sibal has said that every state Assembly has the constitutional right to pass a resolution and seek CAA's withdrawal.

He added that it would be problematic to oppose the CAA if the law is declared to be 'constitutional' by the Supreme Court.

"I believe the CAA is unconstitutional. Every State Assembly has the constitutional right to pass a resolution and seek its withdrawal. When and if the law is declared to be constitutional by the Supreme Court then it will be problematic to oppose it. The fight must go on!" Sibal tweeted.

Earlier speaking at the Kerala Literature Festival on Saturday, the Congress leader had said that constitutionally no state can say that it will not implement the amended Citizenship Act, as doing so will be "unconstitutional".

Kerala government has also approached the Supreme Court against the CAA following the passage of a resolution against it in the state Assembly.

Punjab chief minister Amarinder Singh has also announced that the Congress state government is going to join Kerala in the Supreme Court in the case.

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