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 16,2020

New Delhi, June 16: Tensions along the Line of Control border between India and China have spiked with an Indian army officer and two soldiers killed in the Galwan area of Ladakh, the Indian army said in a statement on Tuesday.

This is the first time in decades that a clash involving casualties has taken place on the 3,488 kilometre border between India and China.

"During the de-escalation process underway in the Galwan Valley, a violent face-off took place yesterday night with casualties. The loss of lives on the Indian side includes an officer and two soldiers. Senior military officials of the two sides are currently meeting at the venue to defuse the situation," said an official statement.

The two sides had made headway in talks last week with army chief General MM Naravane saying disengagement was in progress. The development had come after weeks of tension, including an incident in which patrolling soldiers from the two sides came to blows on the banks of Pangong Lake, resulting in injuries.

The two armies have since thinned out some forces in a positive signal but soldiers, tanks and other armoured carriers remained heavily deployed in the high-altitude region, an official had said.

India and China fought a brief border war in 1962 and have not been able to settle their border despite two decades of talks. Both claim thousands of kilometres of territory and patrols along the undemarcated Line of Actual Control - the de-facto border - often run into each other, leading to tensions. 

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Angry Indian
 - 
Tuesday, 16 Jun 2020

where is our angry desh bakth RSS and sanghi...hiding in rat hole or @%#hole...now you can show your 56 inch chest to chinese...when pakistan destroyed our two fighter jet that time i relised we are making an monkey army not indian army...still time exist, still we have courage army...but we lack leader...we have maron PM...and some dog follower..they only know to bark in media and whatsapp...in reality they are just real na pustak...

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News Network
June 22,2020

Geneva, Jun 22: The global count of coronavirus cases has surpassed 8.7 million, with 183,020 new cases recorded on Sunday, the World Health Organisation said in its daily situation report.

Over the last 24 hours, 4,743 people died from COVID-19 worldwide, taking the death toll to 461,715 fatalities, according to the report.

The cumulative global toll of confirmed cases has now reached 8,708,008, as stated in the report.

The WHO Regional Director for Europe, Dr Hans Henri P. Kluge, shared that Europe accounts for 31 per cent of COVID-19 cases and 43 per cent of COVID-19 deaths globally.

Dr Kluge highlighted that several countries continue to face increasing disease incidence and that "preparing for the autumn is a priority now at the WHO Regional Office for Europe"

The United States continues to be worst affected by the contagion with the highest count of cases and fatalities -- 2.2 million and 118,895, respectively.

The novel coronavirus was declared a pandemic by WHO on March 11.

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News Network
March 10,2020

New Delhi, Mar 10: Minutes after Jyotiraditya Scindia submitted his resignation to the party membership to Congress chief Sonia Gandhi, the Congress expelled him for anti-party activities after reports emerged that he had met PM Modi and Amit Shah.

Disgruntled Congress leader Jyotiraditya Scindia met Prime Minister Narendra Modi on Tuesday amid indications that he might join hands with the BJP to topple the Madhya Pradesh government.

Sources said Scindia first met Union Home Minister Amit Shah, and then the two leaders met Modi at the prime minister's residence.

Legislators loyal to Scindia, who has been upset with the Congress leadership with his marginalisation in the affairs of the Madhya Pradesh Congress, are likely to quit the party to reduce the Kamal Nath-led government to a minority.

It is likely to be followed by the Bharatiya Janata Party staking claim to form the government in the state.

The Congress President has approved the expulsion of Jyotiraditya Scindia from the Indian National Congress with immediate effect for "anti-party activities," said KC Venugopal, General Secretary Congress.

No person is, nor will be greater than the party: Congress youth wing chief

Indian Youth Congress (IYC) chief Srinivas B V on Tuesday slammed Jyotiraditya Scindia, who has announced his resignation from the primary membership of the Congress, and thanked party chief Sonia Gandhi for expelling the former Guna MP "who was promoting anti-party activities and factionalism".

"The history of 1857 and 1967 was once again repeated," Srinivas B V said, referring to the 1857 Revolt against East India Company and the role of the Scindia royals back then as well as Vijayaraje Scindia's switch from the Congress to the Jana Sangh in 1967.

"I would like to thank Congress president Sonia Gandhiji for taking the strong steps to expel the leader who was promoting anti-party activities and factionalism," the IYC chief said.

"No person is, nor will be greater than the party," he added.

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