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
June 25,2020

Jun 25: Tencent Holdings Ltd.'s $40 billion surge this week and the recent ascent of Pinduoduo Inc. have reshuffled the ranking of China's richest people.

The country's largest game developer has surpassed Alibaba Group Holding Ltd. as Asia's most-valuable company, with its shares rising above HK$500 in intraday trading Wednesday for the first time. Pinduoduo, a Groupon-like shopping app also known as PDD, has more than doubled this year.

The rallies have propelled the wealth of their founders, with an added twist: Tencent's Pony Ma, worth $50 billion, has surpassed Jack Ma's $48 billion fortune, becoming China's richest person. And Colin Huang of PDD, whose net worth stands at $43 billion, has squeezed real estate mogul Hui Ka Yan of China Evergrande Group out of the top three earlier this year, according to the Bloomberg Billionaires Index.

The coronavirus pandemic has accelerated the digitization of the workplace and changed consumers' habits, boosting shares of many internet companies. Now tech tycoons are dominating the ranks of China's richest people. They occupy four of the top five spots: Ding Lei of Tencent peer NetEase Inc. follows China Evergrande's Hui.

‘Perform Strongly'

Tencent has come a long way since hitting a low in 2018, when China froze the approval process for new games. Since then, the stock has almost doubled, and last month the tech giant reported a 26 per cent jump in first-quarter revenue.

“Tencent's online games segment will probably perform strongly through the Covid-19 pandemic, and most of its other businesses are relatively unscathed,” said Vey-Sern Ling, a Bloomberg Intelligence analyst.

That has been a boon for Pony Ma, 48, who owns a 7 per cent stake in the company and pocketed about $757 million from selling some 14.6 million of his Tencent shares this year, data complied by Bloomberg show.

The native of China's southern Guangdong province studied computer science at Shenzhen University and was a software developer at a supplier of telecom services and products before co-founding Tencent with four others in the late 1990s. At the time, the company focused on instant-messaging services.

It has been a long comeback for Pony Ma. He overtook real estate tycoon Wang Jianlin as China's second-richest person in 2013 and topped Baidu Inc.'s Robin Li as the wealthiest in early 2014. Later that year, Alibaba went public in the U.S., catapulting Jack Ma's fortune.

Bloomberg Intelligence's Ling notes, however, that Tencent's jump this year has lagged behind some internet peers, especially those in e-commerce, games and online entertainment. Just consider: Tencent shares have climbed 31 per cent in 2020, while PDD's American depositary receipts have more than doubled. Alibaba, meanwhile, has advanced just 6.9 per cent.

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News Network
February 9,2020

New Delhi, Feb 8: Arvind Kejriwal is set to return as Delhi chief minister and his Aam Aadmi Party (AAP) will virtually sweep the assembly elections, exit polls predicted Saturday.

As polling came to a close at 6 pm, with the Election Commission of India (ECI) projecting a voter turnout at 60.24% (as of 9:50 pm), a poll of polls covering 10 exit polls gave 52 seats to AAP, 17 to the Bharatiya Janata Party and one to the Indian National Congress.

The polls, which are sample surveys conducted among voters exiting polling booths, signalled that the Delhi voter responded to AAP’s campaign that focused on “kaam”, or getting work done.

Kejriwal, a former civil servant and activist who stormed into electoral politics with an anti-corruption campaign in 2013, led a campaign focusing on the development work his government did in Delhi, especially in education and healthcare, as well as sops such as lower electricity bills and free bus rides for women.

The exit polls gave AAP between 47 and 68 seats in the 70-member Assembly.

They predicted an absolute rout for Congress, which ruled Delhi for three terms between 1998 and 2013. The maximum seats to AAP were given by India Today TV-Axis exit poll, which predicted 59-68 seats for the party, while giving 2-11 for the BJP and none to the Congress.

If these figures hold, the results will come as a disappointment for the BJP, which had hoped its sweep in the Lok Sabha elections in 2019 would reflect in the assembly polls.

Delhi’s voter turnout saw a sharp fall over the 2015 elections. According to the Election Commission of India, voter turnout till 9 pm was projected at 60.24% — lower than 67.12% in 2015.

Traditionally, a lower voter turnout is read as a vote for the incumbent.

The voter turnout in Delhi has been similar during the Congress regime under Sheila Dikshit, when she won consecutive terms. In 2003, when Delhi voted a second time for the Dikshit government, the voter turnout was 53.42%, and a comparable 57.58% was the turnout in 2008.

Later, in two consecutive elections — 2013 and 2015 — voters turned out in big numbers to vote Dikshit out of power. In 2013, 65.63% of Delhi turned out and the percentage increased further to 67.12% in 2015.

Across constituencies, Matia Mahal in Central Delhi registered the highest voter turnout of 68.36%, whereas Bawana assembly constituency in North district saw the lowest turnout at 41.95%. Among districts, North East district registered the highest (62.75%) voter turnout, while the lowest turnout was recorded in South East district (54.15%), according to the ECI app.

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Agencies
August 5,2020

Ayodhya, Aug 5: Prime Minister Narendra Modi on Wednesday recalled the significance of the path of 'maryada' associated with Lord Ram in the backdrop of the situation created by COVID-19 and emphasised the importance of social distancing and wearing face masks.

He said that the current situation demands 'maryada' should be 'do gaz ki doori, mask hai zaroori' and exhorted everyone to follow it.

In his speech after laying the foundation stone of the Ram Temple in Ayodhya, the Prime Minister said the temple of Lord Ram will inspire and guide humans for ages to come.

He said that the path of `maryada' followed by Lord Ram is all the more necessary today in the situation created by COVID-19.

"The `maryada' (need) today is do gaj ki doori, mask hai jaroori (keep distance of two yards, wear mask). The Almighty may keep all the citizens healthy and happy, this is my prayer. The blessings of Mother Sita and Shri Ram be always there on the citizens," he said.

The Prime Minister termed the occasion as historic and said that India is starting a glorious chapter when people across the country are excited and emotional to have finally achieved what they had been waiting for centuries.

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