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 22,2020

New Delhi, Feb 22: China is delaying grant of clearance to India's proposal to send an Indian Air Force flight to carry relief material for people affected by coronavirus in the neighbouring country and bring back Indians from its city of Wuhan, official sources said Saturday.

India was to send a C-17 military transport aircraft to Wuhan, the epicentre of the coronavirus outbreak, on February 20 but the plane could not take off as permission was not granted for the flight.

"China is deliberately delaying grant of clearance for the evacuation flight," a high-level source said.

The aircraft was to carry a large consignment of medical supplies to China and bring back more Indians from Wuhan.

Sources said the Chinese side continued to maintain that there was no delay in granting permission for the flight to go, but "inexplicably" the clearance has not been given.

In a letter to President Xi Jinping earlier this month, Prime Minister Narendra Modi conveyed India's solidarity to the people and government of China in meeting the challenge of the coronavirus outbreak and offered to provide assistance to the country.

India then put together relief supplies in pursuance of Modi's commitment as a token of India's solidarity, particularly in the 70th year of the anniversary of diplomatic relations between the two countries.

"These supplies have been offered even as India faces tremendous shortage itself, given our ethos of helping others in their hour of need," said a source aware of the issue.

The items being supplied are gloves, surgical masks, feeding pumps and defibrillators based on the requirements as indicated by the Chinese side.

India's national carrier Air India has already evacuated around 640 Indians from Wuhan in two separate flights.

According to estimates, over 100 Indians are still living in Wuhan. A sizeable number of countries have evacuated their citizens from China and restricted movement of people and goods to and from the country in view of the massive outbreak of coronavirus there.

Indian nationals in Wuhan continue their long wait for the flight. The delay is causing them and their family members in India tremendous mental anguish, said the sources.

They said relief and evacuation flights from other countries including by France are allowed to operate by China but the permission has not come through in India's case.

"Are they not interested in Indian aid provided as our token of support? Why are they creating roadblock in evacuating our nationals from Wuhan and putting them under hardship and mental agony?" said a person aware of the issue.

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News Network
February 26,2020

Feb 26: Looking out over the world’s largest cricket stadium, the seats jammed with more than 100,000 people, India’s prime minister heaped praise on his American visitor.

“The leadership of President Trump has served humanity,” Prime Minister Narendra Modi said Monday, highlighting Trump’s fight against terrorism and calling his 36-hour visit to India a watershed in India-U.S. relations.

The crowds cheered. Trump beamed.

“The ties between India and the U.S. are no longer just any other partnership,” Modi said. “It is a far greater and closer relationship.”

India, it seems, loves Donald Trump. It seemed obvious from the thousands who turned out to wave as his motorcade snaked through the city of Ahmedabad, and from the tens of thousands who filled the city’s new stadium. It seemed obvious from the hug that Modi gave Trump after he descended from Air Force One, and from the hundreds of billboards proclaiming Trump’s visit.

But it’s not so simple.

Because while Trump is genuinely popular in India, his clamorous and carefully choreographed welcome was also about Asian geopolitics, China’s growing power and a masterful Indian politician who gave his American visitor exactly what he wanted.

Modi “is doing this not necessarily because he loves Trump,” said Tanvi Madan, the director of the India Project at the Brookings Institution in Washington, D.C. “It’s very much about Trump as the leader of the U.S. and recognizing what it is that Trump himself likes.”

Trump likes crowds — big crowds — and the foot soldiers of India’s political parties have long known how to corral enough people to make any politician look popular. In a city like Ahmedabad, the capital of Modi’s home state of Gujarat and the center of his power base, it wouldn’t take much effort to fill a cavernous sports stadium. It was more surprising that a handful of seats remained empty, and that some in the stands had left even before Trump had finished his speech.

For India, good relations with the U.S. are deeply important: They signal that India is a serious global player, an issue that has long been important to New Delhi, and help cement an alliance that both nations see as a counterweight to China’s rise.

“For both countries, their biggest rival is China,” said John Echeverri-Gent, a professor at the University of Virginia whose research often focuses on India. “China is rapidly expanding its presence in the Indian Ocean, which India has long considered its backyard and its exclusive realm for security concerns.”

“It’s very clearly a major concern for both India and the United States,” he said.

Trump isn’t the first U.S. president that Modi has courted. In 2015, then-President Barack Obama was the first American chief guest at India’s Republic Day parade, a powerful symbolic gesture. Obama also got a Modi hug, and the media in both countries were soon writing about the two leaders’ “bromance.”

Trump is popular in India, even if some of that is simply because he’s the U.S. president. A 2019 Pew Research Center poll showed that 56% of Indians had confidence in Trump’s abilities in world affairs, one of only a handful of countries where he has that level of approval. But Obama was also popular: Before he left office, he had 58% approval in world affairs among Indians.

The Pew poll also indicated that Trump’s support was higher among supporters of Modi’s Hindu nationalist party.

That’s not surprising. Both men have fired up their nationalist bases with anti-Muslim rhetoric and government policies, from Trump’s travel bans to Modi’s crackdown in Kashmir, India’s only Muslim-majority state.

And Trump’s Indian support is far from universal. Protests against his trip roiled cities from New Delhi to Hyderabad to the far northeastern city of Gauhati, although those demonstrations were mostly overshadowed by protests over a new Indian citizenship law that Modi backs.

Modi, who is widely popular in India, has faced weeks of protests over the law, which provides fast track naturalization for some foreign-born religious minorities — but not Muslims. While Trump talked about ties with India on Tuesday, Hindus and Muslims fought in violent clashes that left at least 10 people dead over two days.

In some ways, Modi and Trump are powerful echoes of each other.

They have overlapping political styles. Both are populists who see themselves as brash, rule-breaking outsiders who disdain their countries’ traditional elites. Both are seen by their critics as having authoritarian leanings. Both surround themselves with officials who rarely question their decisions.

But are they friends?

Trump says yes. “Really, we feel very strongly about each other,” he said at a New Delhi press briefing.

But many observers aren’t so sure.

“The question is how much of this is real chemistry, as opposed to what I’d call planned chemistry” orchestrated for diplomatic reasons, said Madan. “It’s so hard to know if you’re not in the room.”

Certainly, Modi understands America’s importance to India. While the two countries continue to bicker about trade issues, the prime minister organized a welcome that impressed even India’s news media, which have watched countless choreographed mass political rallies.

“There is no other country for whose leader India would hold such an event, and for which an Indian prime minister would lavish such rhetoric,” the Hindustan Times said in an editorial.

“The spectacle and the sound were worth a thousand agreements.”

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Agencies
January 15,2020

New Delhi, Jan 15: Suspended Deputy Superintendent of J&K Police Davinder Singh had ferried Hizbul Mujahideen terrorist Naveed Babu to Jammu last year also and facilitated his return to Shopian after "rest and recuperation", officials interrogating him said here Tuesday.

"Meri mati maari gayi thi (I must have lost my mind to do what I did)," an interrogator quoted Singh as saying after the DSP failed to impress them with his theory of catching a big terrorist.

Singh was arrested last Saturday along with Naveed Babu alias Babar Azam, a resident of Nazneenpora in South Kashmir's Shopian district, and his associate Asif Ahmad.

He is believed to have taken Rs 12 lakh for smuggling the two to Chandigarh for providing them accommodation for a couple of months, officials said. The officials, who have been spending considerable time questioning Singh, said there have been many inconsistencies in his statements and everything was being crosschecked and corroborated with the confessions of captured militants who have been kept in different rooms at an interrogation centre in South Kashmir.

During questioning it emerged that Singh had taken them to Jammu in 2019 also, the officials said.

In a tone laced with sarcasm, they said the DSP was taking the militants for "rest and recuperation".

Naveed told the interrogators that they used to stay in the hilly regions to avoid the J&K police and left the areas to escape harsh winters, they said.

The official said the DSP's bank accounts and other assets were being verified by the police and papers were being collected, amid speculations that the case may be handed over to the National Investigation Agency (NIA).

Going into the service history of Singh, majority of retired and serving officials of the JKP spoken to referred to a proverb -- coming events cast their shadows long before -- to say that if action had been taken against the officer during his probation period, such things would not have happened.

Recruited in 1990 as a sub-inspector, Singh along with another probationary officer were subject of an internal enquiry where some narcotics had been seized from a truck. However, the contraband was sold by Singh and another sub-inspector, the officials recalled.

There was a move to dismiss them from the service which was stalled by an Inspector General rank officer purely on humanitarian ground and the duo was shifted to the Special Operations Group, a team of policemen engaged in counter-militancy offensive.

However, he could not last there for long and was shifted this time to the police lines only to be rehabilitated in 1997 again in the SOG.

During this period, he was posted in Budgam and is alleged to have indulged in extortion for which he was sent back to the police lines.

His proper rehabilitation began in 2015 by the then Director General of Police K Rajendra, who posted him in district headquarters of Shopian and Pulwama, the officials said.

However, after some alleged wrongdoing during his stint in Pulwama, the then Director General of Police S P Vaid transferred him in August 2018 to the sensitive Anti-Hijacking Unit in Srinagar, though the move was opposed by some other officers.

An advocate, Irfan Ahmad Mir, was driving the vehicle when they were caught by the police on National Highway in Kulgam district.

The advocate, who has also been arrested, had travelled to Pakistan five times on an Indian passport.

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