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
April 26,2020

Dubai, Apr 26: The Central Bank of the UAE (CBUAE) has instructed financial institutions in the country to search and freeze all bank accounts of Indian billionaire BR Shetty and his family along with those of companies where he has a stake.

The apex bank has also blacklisted several firms associated with Shetty along with their entire senior management.

In an advisory issued last week, CBUAE cited decisions of the Federal Attorney General and asked financial institutions to search and freeze any bank accounts, deposits or investments in the name of Shetty or his family members.

Financial institutions have been directed to stop transfers from these accounts and deny access to deposit boxes.

Currently in India and facing a string of charges, Shetty is the founder of NMC Health.

The heathcare provider was placed into administration by a UK court recently following an application by the Abu Dhabi Commercial Bank (ADCB) which alone has an exposure of $981 million (Dh3.6 billion).

Overall, UAE banks have a combined exposure of more than Dh8bn to NMC which owes money to Oman-based banks and financial institutions as well.

Probing credit facilities
The Central Bank has sought information about credit facilites extended to the Shettys along with details of their safe deposit boxes and the financial transfers they have made till date.

A similar advisory has been issued for NMC Healthcare and NMC Holding, based on the decision of the Head of Plenary Fund Prosecution.

The Central Bank has also blacklisted several companies associated with Shetty. Key staff members of these firms have been similarly blacklisted.

Comments

Angry Indian
 - 
Monday, 27 Apr 2020

when you make money with good country you should not make doka to that country, first of all we indian have bad name in GCC now this will make more dought on indian hindus..

 

after BJP come to power in india,our country is acting like maron, this will only end with final WAR.

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News Network
February 27,2020

New Delhi, Feb 27: Congress leader Priyanka Gandhi Vadra on Thursday attacked the government over the transfer of Delhi High Court Judge S Muralidhar, saying the Centre's attempts to "muzzle" justice and "break people's faith in an upright judiciary are deplorable".

Delhi HC Judge S Muralidhar was transferred to the Punjab and Haryana High Court, days after the Supreme Court collegium made the recommendation.

"The midnight transfer of Justice Muralidhar isn't shocking given the current dispensation, but it is certainly sad & shameful," Priyanka Gandhi tweeted. "Millions of Indians have faith in a resilient & upright judiciary, the government’s attempts to muzzle justice & break their faith are deplorable," she said.

The judge was hearing the Delhi violence case and the late evening notification came on the day when a bench headed by him expressed "anguish" over the Delhi Police's failure to register FIRs against alleged hate speeches by three BJP leaders.

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News Network
January 24,2020

Beijing, Jan 24: As China stepped up measures to control the spread of coronavirus, locking down Wuhan and Huanggang cities in the Hubei province where several Indians live, the Indian Embassy here has set up hotlines for their assistance.

Chinese officials assured all assistance, including food supply, to the Indians who stayed put in the province, the Indian Embassy here said in a press release on Thursday.

Wuhan and its surrounding area became the epicentre of the coronavirus outbreak as the confirmed cases climbed to over 600 mostly from the city and the province with 17 deaths so far.

China has virtually sealed Wuhan and Huanggang cities, halting all public transport, including flight services, and advised people to stay at home and follow the precautions. The two cities put together have a population of over 17 million people.

Chinese officials said the measures have been taken to prevent the spread of the virus to other cities and the world.

Concerns arose for India too as about 700 Indian students, mostly studying medicine in different Chinese universities, resided in Wuhan and its neighbouring areas.

While many of them were believed to have left home for the Chinese New Year holidays, others remained in the city to complete their academic work. However, the exact number is not yet known.

“The Embassy of India has been receiving queries from Indians in Hubei province as well as their relatives in India in connection with the evolving situation of coronavirus infection in China,” the embassy press release said.

The embassy is in touch with relevant Chinese authorities in Beijing and Wuhan as well as Indians in Hubei Province, especially in Wuhan, it said.

“We are closely monitoring the evolving situation in China, including the advisories issued by the World Health Organisation (WHO),” the embassy said.

According to the embassy, Chinese authorities have assured all assistance to residents of Wuhan, including food supply.

“At present, it is reported that supermarkets (particularly those that are government-run) and e-commerce services, including food delivery, continue to remain operational in Wuhan,” it said.

The embassy has started two hotlines for those who wish to get in touch with the Mission in this regard in the following phone numbers:              +8618612083629 and +8618612083617.

“All are advised to also keep track of the embassy's social media accounts (Twitter:@EoIBeijing; Facebook: India in China) for updates on this evolving situation,” the release said.

Meanwhile, the Chinese Foreign ministry said all assistance would be provided to consular officials of the foreign missions to ensure the safety of the foreigners in the country.

Asked whether China would consider any request from the respective countries to move their citizens out of Wuhan, Chinese Foreign Ministry spokesman Geng Shuang said, “We always help foreign consular officials in China in their official jobs, we offer them all the assistance and convenience necessary and we work to guarantee foreign citizens' legitimate rights and interest in China.”

He said while specific detailed would be provided by local officials, China in principle, has always handled issues according to domestic laws, international laws and bilateral consular agreements.

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