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 24,2020

New Delhi, June 24: The United Arab Emirates (UAE) has asked Air India to not carry any passengers aboard the repatriation flights to UAE being operated under the Vande Bharat Mission.

As per the Guidelines issued by the General Civil Aviation Authority of United Arab Emirates (UAE)- Safety Decision 2020-01 (Issue 17) Q and A Guidance For Foreign Operators, on June 23, 2020 - transportation of passengers ( UAE Nationals and Non - UAE Nationals) to the United Arab Emirates on the repatriation flights is not allowed.

In view of the foregoing, all passengers including the Indian Nationals who are holding valid Residency Permit / Work Permit of United Arab Emirates and have procured approval of the UAEs Federal Authority for Identity and Citizenship- UAE (ICA) of United Arab Emirates or an approval from the General Directorate of Residency and Foreigners Affairs (GDRFA) applicable to Dubai would need to have specific approval from the Embassy of the United Arab Emirates in New Delhi and their UAE Ministry of Foreign Affairs and International Cooperation (MOFAIC) to travel from India to United Arab Emirates (UAE) on these repatriation flights.

All passengers need to comply with the quarantine and COVID-19 test requirements as per the preventive and the precautionary measures required by the appropriate health authorities, as notified from time to time.

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News Network
February 14,2020

New Delhi, Feb 14: Senior Congress leader P Chidambaram on Thursday said there must be a "huge mass movement" if any Muslim was sent to detention camps in case the Supreme Court upheld the validity of the Citizenship Amendment Act (CAA).

Speaking at the JNU campus, the former Union minister said the CAA was an outcome of the "NRC fiasco" in Assam that left 19 lakh people out of the document.

The CAA was brought to accommodate the 12 lakh Hindus among the 19 lakh people who could not be included in the National Register of Citizens (NRC) in Assam, he claimed.

Replying to a question by a student on the best course of action if the CAA was upheld by the apex court, Chidambaram said, "When they touch the excluded...they will only be Muslims, to identify and throw them out, declare them stateless, there must be a huge mass movement, resisting any Muslim being thrown out or kept in detention camps."

He also said the Congress believed that the CAA must be repealed and there should be a political struggle so that the National Population Register (NPR) was pushed beyond 2024.

Claiming that the NRC, CAA and NPR were "closely connected" to each other, Chidambaram said, "The CAA was brought due to the NRC fiasco in Assam and the opposition to the CAA gave way to the NPR."

He asserted that the Congress was protesting against the CAA and the NRC across the country, but had consciously avoided going to Shaheen Bagh, as in that case, the ruling Bharatiya Janata Party (BJP) would brand the demonstration against the amended citizenship law as a "political" one.

"See, we are not going to Shaheen Bagh because that would be falling into the BJP's trap. If we go there, they (BJP) will say it is political," the senior Congress leader said.

Slamming the CAA and the NRC as instruments undermining the very basis of the formation of India, he said the country, instead, needed a "broad law" on refugees.

Speaking at an event against the NRC, CAA and NPR hosted by the Congress's student wing, NSUI, at the Jawaharlal Nehru University (JNU), Chidambaram accused the BJP of spreading lies against Opposition parties.

"The BJP says the Congress, the Left and other liberal parties are against citizenship to persecuted Hindus, Sikhs from Pakistan, Bangladesh. But we are not against those included, our opposition is against exclusion," he said.

Questioning the rationale behind the CAA, the former finance minister said it excluded people on the basis of religion.

"Why only three countries, what about other neighbouring countries — Nepal, Bhutan, China? What about others treated much worse? The Ahmadiyas and Shias of Pakistan, the Rohingyas of Myanmar, Tamil Hindus are equally persecuted, why are they left out?" he questioned.

Chidambaram also said the CAA did not cover persecution based on language, political ideology and economic deprivation.

Slamming the NRC, he wondered which country would accept those left out of the document.

"Which country is going to accept them? How will they go? Where will you send them? (Home Minister) Amit Shah saying that they are termites and he will throw them out by 2024 is talking through his hat," the senior Congress leader said.

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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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