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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Agencies
July 14,2020

Jaipur, Jul 14: Sachin Pilot has been removed as Deputy Chief Minister and Rajasthan PCC Chief, announced Congress leader Randeep Singh Surjewala on Tuesday.

"Sachin Pilot, Vishvendra Singh and Ramesh Meena have been removed from the posts of Deputy Chief Minister and Ministerial posts respectively. Sachin Pilot has also been removed as the Rajasthan PCC Chief," said Surjewala.

Govind Singh Dotasra has been appointed as the new PCC chief, he added.

"Sachin Pilot, few Congress Ministers and MLAs got involved in the conspiracy to topple the Congress government by getting entangled within the trap of BJP," he added.

The decision was taken after a Congress Legislature Party (CLP) meeting at the Fairmont Hotel in Jaipur, Rajasthan earlier today.

The Rajasthan Congress is in turmoil over the past few days. While Chief Minister Ashok Gehlot has blamed the BJP for attempting to destabilise the State government by poaching MLAs, Deputy Chief Minister Sachin Pilot has been camping in Delhi.

A controversy broke out in Rajasthan after Special Operation Group (SOG) sent a notice to Pilot to record his statement in the case registered by SOG in the alleged poaching of Congress MLAs in the State.

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News Network
January 27,2020

Jaipur, Jan 27: Senior Congress leader Shashi Tharoor said that if the Citizenship Amendment Act leads to the implementation of the NPR and the NRC, it would be a complete victory for Pakistan's founding father, Muhammad Ali Jinnah.

He said that Jinnah's idea of a country was already winning in India with the contentious Citizenship Amendment Act (CAA) coming into effect, but asserted that there was still a choice available.

"I would not say Jinnah has completely won, but I would say Jinnah is winning. There is still a choice available to the nation between Jinnah's idea of a country and Gandhiji's idea of a country," he said on the sidelines of the Jaipur Literature Festival on Sunday.

The CAA came into force in India in December amid protests across the country and around the world.

The MP from Thiruvananthapuram said that the amended Citizenship Act took Jinnah's logic by declaring that religion shall be the basis of nationhood, reaffirming that Gandhi's idea is that all religions are equal .

"The CAA is, if you are talking Tennis, you would say one set up or big first set lead for Jinnah. But the next step would be if the CAA would lead to the National Population Register (NPR) and the National Register of Citizens (NRC). If that happens, then you would consider that Jinnah's victory is complete," he said.

The CAA seeks to grant citizenship to migrants belonging to Hindu, Sikh, Buddhist, Christian, Jain and Parsi communities who came to India from Pakistan, Bangladesh and Afghanistan on or before December 31, 2014.

On the BJP's defence that the NPR was carried out during the UPA regime, Tharoor said that the Congress government had utilised a decision of the NDA government led by former prime minister Atal Bihari Vajpayee.

"It never asked where were your parents born. It never authorised the enumerators to note on the margin 'dubious citizenship', a term used in the NPR rules crafted by this government. That is purely BJP's invention," he said.

If we go around this country authorising people to interview all the citizens, or identify some who have 'dubious citizenship', you can be pretty sure which Indians are going to be found on the 'dubious citizenship', he said.

"That will principally be one community that is not mentioned in the CAA. And if that happens, then it is indeed Jinnah's victory.

"From wherever he is, he can point to this place and say, 'see I was right in the 1940. We are separate nations and Muslims deserved their own country because Hindus cannot be just'," Tharoor said.

Speaking about the Delhi election, the three-time MP said that the maximum development in the national capital happened under the Congress government.

"What Sheila Dikshit did in her 15 years as Chief Minister of Delhi, no other leader could do it before or after her," he said.

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News Network
May 14,2020

London, May 14: Fugitive liquor baron Vijay Mallya on Thursday urged the Central government to accept his offer to repay 100 per cent of his loan dues and close the case against him.

While congratulating the Centre for introducing Rs 20 lakh crore relief package to boost the economy amid the coronavirus lockdown, Mallya, lamented that his repeated attempts to pay back his dues have been ignored by the Indian government.

"Congratulations to the Government for a Covid 19 relief package. They can print as much currency as they want BUT should a small contributor like me who offers 100% payback of State-owned Bank loans be constantly ignored? Please take my money unconditionally and close," he tweeted.

Earlier this month, Mallya had sought permission to appeal against a ruling ordering his extradition to India in Britain's highest court the UK Supreme Court.

The application comes two weeks after the High Court in London - the UK's second-highest court - dismissed Mallya's appeal against a lower court ruling that he be sent to India to face charges of defrauding a consortium of Indian banks of more than Rs 9,000 crores relating to the collapse of Kingfisher Airlines in 2012.

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