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
June 18,2020

New Delhi, Jun 18: Vodafone Idea on Thursday told the Supreme Court that it has incurred Rs 1 lakh crore losses as it insisted it is not in a position to furnish bank guarantees.

A bench comprising Justices Arun Mishra, S. Abdul Nazeer, and M.R. Shah, taking up the adjusted gross revenue (AGR) matter through video conferencing, directed the telecom companies to submit their financial documents and books for the last 10 years.

Asking Vodafone if it was a foreign company, the bench said that how can the company say it would not furnish any bank guarantee.

"What if you fly away overnight in future without paying anything?" it asked.

Senior advocate Mukul Rohatgi, representing Vodafone Idea, denied his client is a completely foreign firm and cited before the bench its tie-ups and investments.

Vodafone owes over Rs 58,000 crore as AGR dues and so far, has paid close to Rs 7,000 crore.

Rohatgi contended before the court that the telecom company is in a tough situation, and cannot furnish any fresh bank guarantee, as profits have eluded the company in past many quarters. He submitted before the bench that Rs 15,000 crore bank guarantees are lying with the government, and his client's losses are over Rs 1 lakh crore.

"I cannot offer any more surety," he informed the bench.

Justice Mishra noted that this is public money and these dues should be recovered. "Do not tell us that you will pay if you were to make profits... the money must come," he noted.

Justice Shah observed that the telecom industry is the only industry which earned during the Covid-19 pandemic. "After all, this money will be used for public welfare", he said.

Rohatgi argued that his client would have to fold up if orders were issued to clear dues tomorrow. "11,000 employees will have to go without notice, as we cannot pay them," he added.

Senior advocate Abhishek Manu Singhvi, appearing for Bharti Airtel, contended before the court that out of Rs 21,000 crore AGR dues, the company has already deposited a sum of Rs 18,000 crore.

He argued that his client has given a bank guarantee, in excess of demand, to DoT, and supported the proposal for phased repayment of remaining AGR dues. He insisted that the company needs to sit down with the government and calculate the dues. Airtel owes Rs 25,976 crore after paying Rs 18,000 crore, as per the government.

Senior advocate Arvind Datar, representing Tata Telecom, informed the bench that his client has paid Rs 6,504 crore in AGR dues so far, and furnishing a bank guarantee may adversely impact investments in the sector.

The total AGR dues are close to Rs 1.5 lakh crore.

The top court will now take up the matter in the third week of July.

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News Network
February 16,2020

New Delhi, Feb 16: RSS chief Mohan Bhagwat on Saturday said everyone is unhappy in the society and constantly agitating notwithstanding a "many-fold rise" in materialistic comforts and pleasures.

Addressing a gathering of Sangh workers and intellectuals here in Gujarat, Mr Bhagwat also said that even political parties who are not in power are also agitating.

"Inspite of increase in comforts and materialistic pleasures, everyone is unhappy and is staging agitations. Be it owner or servant, a party in opposition, the common man students, teachers, everyone is unhappy and dissatisfied," the Rashtriya Swayamsewak Sangh (RSS) chief said.

He was speaking on the topic "India's Role in the Present World Context".

Mr Bhagwat further said that bigotry, violence and terrorism are on the rise in the present world.

"India has to give 'dharma'  (wisdom) to the world so that knowledge spreads but humans do not become robotic. We have always talked about the concept of global family but not global market," he said.

The lecture was organised by "Madhav Smruti Nyas", an organisation backed by the RSS.

"To think that we are living in a better world is a half truth. Facilities are not evenly distributed. Rule of Jungle is prevailing. A capable person is crushing the weak to climb up. Knowledge is used more for the destruction of the world," the Sangh chief said.

Mr Bhagwat said people are also misusing social media by spreading "false information" to create controversies.

He also stated that trying to put "everyone into one uniform" is also a form of bigotry.

"US and Russia are super powers. China would become a super power too. Now, what super power nations did to others? They just took control of other countries for their own selfish agenda. These super powers gave it back only when they were asked to do so. Otherwise, they never gave anything to others," said Mr Bhagwat.

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News Network
June 11,2020

Washington, Jun 11: Observing that historically India has been a tolerant, respectful country for all religions, a top Trump administration official has said the US is "very concerned" about what is happening in India over religious freedom.

The comments by Samuel Brownback, Ambassador-At-Large for International Religious Freedom, came hours after the release of the "2019 International Religious Freedom Report" on Wednesday.

Mandated by the US Congress, the report documenting major instances of violation of religious freedom across the world was released by Secretary of State Mike Pompeo at the State Department.

India has previously rejected the US religious freedom report, saying it sees no locus standi for a foreign government to pronounce on the state of its citizens' constitutionally protected rights.

"We do remain very concerned about what's taking place in India. It's historically just been a very tolerant, respectful country of religions, of all religions," Mr Brownback said during a phone call with foreign journalists on Wednesday.

The trend lines have been troubling in India because it is such a religious subcontinent and seeing a lot more communal violence, Mr Brownback said. "We're seeing a lot more difficulty. I think really they need to have a - I would hope they would have an - interfaith dialogue starting to get developed at a very high level in India, and then also deal with the specific issues that we identified as well," he said.

"It really needs a lot more effort on this topic in India, and my concern is, too, that if those efforts are not put forward, you're going to see a growth in violence and increased difficulty within the society writ large," said the top American diplomat.

Responding to a question, Mr Brownback said he hoped minority faiths are not blamed for the COVID-19 spread and that they would have access to healthcare amid the crisis.

Prime Minister Narendra Modi has criticised any form of discrimination, saying the COVID-19 pandemic affects everyone equally. "COVID-19 does not see race, religion, colour, caste, creed, language or border before striking. Our response and conduct thereafter should attach primacy to unity and brotherhood," PM Modi said in a post on LinkedIn in February.

The government, while previously rejecting the US religious freedom report, had said: "India is proud of its secular credentials, its status as the largest democracy and a pluralistic society with a longstanding commitment to tolerance and inclusion".

"The Indian Constitution guarantees fundamental rights to all its citizens, including its minority communities… We see no locus standi for a foreign entity/government to pronounce on the state of our citizens' constitutionally protected rights," the Foreign Ministry said in June last year.

According to the Home Ministry, 7,484 incidents of communal violence took place between 2008 and 2017, in which more than 1,100 people were killed.

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