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
July 14,2020

New Delhi, Jul 14: India's COVID-19 tally breached the 9 lakh mark as 28,498 new coronavirus cases were reported in the last 24 hours, informed the Union Ministry of Health and Family Welfare on Tuesday.

As per the Health Ministry, there are a total of 9,06,752 coronavirus cases in the country of which 3,11,565 patients are active cases.

5,71,459 patients have been cured/discharged while one patient has been migrated, the Ministry informed further.

553 more deaths due to COVID-19 were reported in the last 24 hours in the country, taking the number of patients succumbing to the virus to 23,727.

The Centre further informed that India's recovery rate from COVID-19 stands at 63.02 per cent while the recoveries and deaths ratio stood at 96.01 per cent and 3.99 per cent respectively.

As per the Ministry, Maharashtra -- the worst-affected state from the infection -- has a total of 2,60,924 COVID-19 cases and 10,482 fatalities. While Tamil Nadu has a tally of 1,42,798 cases and 2,032 deaths due to COVID-19.

Delhi has reported a total of 1,13,740 cases and 3,411 deaths due to COVID-19.

As per the information provided by the Indian Council of Medical Research (ICMR) 1,20,92,503 samples have been tested for COVID-19 till July 13, of these 2,86,247 samples were tested on Monday.

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News Network
March 9,2020

New Delhi, Mar 9: A war of words broke out between the BJP and the Congress on Sunday over the Yes Bank crisis with the ruling party seeking to link it with the Gandhi family, while the opposition wondered if the prime minister and finance minister were "complicit" as the bank's loan book grew manifold.

Posting on Twitter a clip of a news channel report that Rana Kapoor, the arrested Yes Bank founder, had bought a painting from Congress leader Priyanka Gandhi Vadra, BJP's information and technology wing in-charge Amit Malviya alleged that every financial crime in India has "deep links" with the Gandhis.

The Congress dismissed the charge "fake" and called it a "diversionary" tactic.

It said Priyanka Gandhi had sold an M F Hussain painting of her father Rajiv Gandhi to Kapoor for Rs 2 crore, and the entire amount was disclosed in her income tax return of 2010.

Malviya tweeted, "Every financial crime in India has deep link with the Gandhis. Mallya used to send flight upgrade tickets to Sonia Gandhi. Had access to MMS (Manmohan Singh) and PC (P Chidambaram). Is absconding. Rahul inaugurated Nirav Modi’s bridal jewellery collection, he defaulted. Rana bought Priyanka Vadra’s paintings."

Congress' chief spokesperson Randeep Surjewala asked how does an M F Hussain painting of Rajiv Gandhi sold 10 years ago by Priyanka Gandhi to Yes Bank owner Rana Kapoor and disclosed in her tax returns connect with unprecedented giving of loans of Rs 2,00,000 crore in five years of the Modi government.

"More so, when (Kapoor's) proximity to BJP leaders is well known," he said.

Rubbishing the BJP's allegation, Congress spokesperson Abhishek Manu Singhvi at a press conference said it was a "diversionary" tactic by the government.

He noted that the bank's loan book rose from Rs 55,633 crore in March 2014, the year Narendra Modi became prime minister, to Rs 2,41,499 crore in March 2019.

"Why did the loan book rise by 100 per cent in two years after demonetisation i.e from Rs 98,210 cr in March 2016 to Rs 2,03,534 ar in March 2018? Were PM and FM sleeping, ignorant or complicit?" he asked.

The entire amount Priyanka Gandhi had received was in cheque and was fully disclosed in the income tax return, Singhvi said.

Surjewala, taking to Twitter, said instead of diverting from the real issue of people's money sinking into a bad bank, should not the government answer questions like how did loans given by Yes Bank rise from Rs 55,633 crore in March 2014 to Rs 2,41,499 crore in March 2019, an increase of almost Rs 2,00,000 crore in fiver years of the Modi government.

Why did the loans given by Yes Bank rise by a whopping 100 per cent in just two years after demonetisation, he asked.

Surjewala also questioned why did the prime minister address a conference sponsored by Yes Bank on March 6 despite the RBI moratorium.

"Why did the Haryana BJP government deposit over Rs 1,000 crore in Yes Bank a month ago, knowing that it was sinking? Is this figure Rs 3,000 cr? Did Fadnavis government in Maharashtra make similar deposits?" Surjewala asked.

"Of course, the government's media proxies won't dare to ask these questions. But the nation wants to know!" he said in a series of tweets.

Kapoor, 62, was arrested by the Enforcement Directorate in Mumbai after charges of alleged financial irregularities and mismanagement in the bank's operations surfaced and the RBI and Union government initiated action to control its affairs.

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News Network
January 6,2020

Aboard Air Force One, Jan 6: US President Donald Trump threatened sanctions against Baghdad on Sunday after Iraq's parliament called on US troops to leave the country, and the president said if troops did leave, Baghdad would have to pay Washington for the cost of the air base there.

"We have a very extraordinarily expensive air base that's there. It cost billions of dollars to build, long before my time. We're not leaving unless they pay us back for it," Trump told reporters on Air Force One.

Trump said that if Iraq asked US forces to leave and it was not done on a friendly basis, "we will charge them sanctions like they've never seen before ever. It'll make Iranian sanctions look somewhat tame."

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