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
March 20,2020

New Delhi, Mar 20: The government on Thursday said one Indian who tested positive for coronavirus has died in Iran while the other citizens infected with the disease are being provided treatment and taken care of by the Iranian government.

Noting that the virus tends to be more fatal for those whose immunity levels are low, a senior MEA official said the deceased, an elderly person, belonged to the vulnerable age group and had health-related complications.

The death was not because of lack of medical attention or care, he said.

"We have evacuated 590 people from Iran where the situation is very severe. The Indians infected with coronavirus in Iran have been segregated and taken care of very well by the government there. We believe they will recover and we will bring them back," the MEA official said, adding that 201 Indians were evacuated from Iran on Wednesday.

The official said closely knit families required some persuasion and counselling during the process of segregation to prevent the spread of the contagion.

The Indian ambassador and other officials explained the consequences of infected people not being separated from their families and were successful to a large extent in segregating the positive cases from the negative ones, he said.

"Some pilgrims and students are still there and our embassy and mission are in control (of the situation)," the official said.

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News Network
January 20,2020

Langkawi, Jan 20: Malaysia will not take retaliatory trade action against India over its boycott of palm oil purchases amid a political row between the two countries, Prime Minister Mahathir Mohamad said on Monday.

India, the world’s largest edible oil buyer, this month effectively halted imports from its largest supplier and the world’s second-biggest producer in response to comments from Mahathir attacking India’s domestic policies.

“We are too small to take retaliatory action,” Mahathir told reporters in Langkawi, a resort island off the western coast of Malaysia. “We have to find ways and means to overcome that,” he added.

The 94-year-old premier of Muslim-majority Malaysia has criticised New Delhi’s new religion-based citizenship law and also accused India of invading the disputed region of Kashmir.

Mahathir again criticised India’s citizenship law on Monday, saying he believed it was “grossly unfair”.

India has been Malaysia’s largest palm oil market for the past five years, presenting the Southeast Asian country with a major challenge in finding new buyers for its palm oil.

Benchmark Malaysian palm futures fell nearly 10% last week, their biggest weekly decline in more than 11 years.

New Delhi is also unhappy with Malaysia’s refusal to revoke permanent resident status for controversial Indian Islamic preacher Zakir Naik, who has lived in Malaysia for about three years and faces charges of money laundering and hate speech in India.

Mahathir said even if the Indian government guarantees a fair trial, Naik faces the real threat of vigilante action and that Malaysia will only relocate the preacher if it can find a third country where he would be safe.

“If we can find a place for him, we will send him out.”

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News Network
June 19,2020

Jun 19: Billionaire Mukesh Ambani on Friday announced that his oil-to-telecom conglomerate Reliance Industries is now net debt-free after raising a record Rs 1.69 lakh crore from global investors and a rights issue in under two months.

Reliance raised Rs 1.15 lakh crore from global tech investors by selling a little less than a quarter of the firm's digital arm, Jio Platforms Ltd, and another Rs 53,124.20 crore through a rights issue in the past 58 days.

Taken together with last year's sale of 49 per cent stake in fuel retailing venture to BP Plc of UK for Rs 7,000 crore, the total fund raised is in excess of Rs 1.75 lakh crore, the company said in a statement.

Reliance had a net debt of Rs 1,61,035 crore as on March 31, 2020. "With these investments, RIL has become net debt-free," it said.

"I have fulfilled my promise to the shareholders by making Reliance net debt-free much before our original schedule of March 31, 2021," Ambani said.

Jio Platforms - which houses the country's youngest but largest telecom firm Reliance Jio, raised Rs 1,15,693.95 crore from leading global investors including Facebook, Silver Lake, Vista Equity Partners, General Atlantic, KKR, Mubadala, ADIA, TPG, L Catterton and PIF since April 22, 2020.

Saudi Arabian sovereign wealth fund PIF buying 2.32 per cent stake in the unit for Rs 11,367 crore on June 18 "marks the end of Jio Platforms' current phase of induction of financial partners," the statement said.

Alongside, Reliance launched India's biggest right issue, which was subscribed to 1.59 times.

Though the rights issue size was Rs 53,124 crore, the company has got only 25 per cent of the money as the remaining is to be paid only next fiscal.

Ambani had at the company's annual general meeting on August 12, 2019, announced a roadmap for Reliance to become a net debt-free company before March 31, 2021.

"We have a very clear roadmap to becoming a zero net-debt company within the next 18 months that is by March 31, 202," he had said last year highlighting strong interest from strategic and financial investors in consumer businesses, Jio and Reliance Retail.

In the statement on Friday, he said he was both delighted and humbled to announce the fulfillment of the promise.

"Exceeding the expectations of our shareholders and all other stakeholders, again and yet again, is in the very DNA of Reliance," he said.

"Therefore, on the proud occasion of becoming a net debt-free company, I wish to assure them that Reliance in its Golden Decade will set even more ambitious growth goals, and achieve them," he added.

He said over the past few weeks, phenomenal interest was received from the global financial investor community in partnering with Jio.

"As our fundraising milestone from financial investors is achieved, we sincerely thank the marquee group of financial partners and warmly welcome them into Jio Platforms," he said.

"I also express my heartfelt gratitude to all the retail and institutional investors, both domestic and foreign, for their overwhelming participation in our record-setting Rights Issue," he added.

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