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 17,2020
New Delhi, Jul 17:  Congress leader Rahul Gandhi on Friday said that as India's COVID-19 tally has crossed 10,00,000 mark and issued a warning that by August 10, more than 20,00,000 people may be infected in the country. He called on the government to take concrete steps to control the pandemic.
 
Taking to Twitter, Gandhi marked his earlier tweet from July 14 that stated: "This week the figure will cross 10,00,000 in our country."
"The tally has crossed 10,00,000 mark. If COVID-19 continues to spread at the same speed, by August 10, more than 20,00,000 people will be infected in the country.
 
The government must take concrete, planned steps to stop the epidemic," he tweeted today.
With the highest single-day spike of 32,695 cases and 606 deaths, India's COVID-19 tally on Thursday reached 9,68,876, informed the Union Ministry of Health and Family Welfare on Thursday.
 
The total number of COVID-19 cases includes 3,31,146 active cases, 6,12,815 cured/discharged/migrated and 24,915 deaths. 

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News Network
June 29,2020

New Delhi, Jun 29: A disturbing video of a Covid-19 patient, speaking his last words, after his oxygen supply was allegedly cut off, has surfaced on social media. The patient reportedly died after indicating that the oxygen supply to him was cut off despite his requests.

The video has a 35-year-old Covid-19 patient bidding good-bye to his family, from a government hospital bed in Hyderabad. The patient Ravi Kumar can be seen speaking out against the negligence of of the medical staff in providing ventilator support to him when he needed it the most.

The video has led to social media outrage as it attracted public attention towards plight of patients in government hospitals

"I am not able to breathe, I pleaded but they did not continue oxygen for the last three hours. I am not able to breathe anymore daddy, it's like my heart has stopped, Bye daddy. Bye to all, daddy," these were apparently the final words of the man, who spoke in his local dialect, and shared on social media.

Several reports have claimed that the man had been admitted to government Chest hospital, after several private hospitals refused to admit him. His ventilator support was allegedly taken off in the hospital, after which he recorded the video message.

The victim’s family shared the video message for the public to know of the negligence.

Reports have it that Ravi’s covid-19 report, which testes positive, was given to family a day after his death, when 30 of his family members performed the final rites, thus making all of them vulnerable to the virus. Ravi’s father has alleged that the test was done on June 24 and Ravi died on June 26, while the report was given to them on June 27.

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News Network
May 13,2020

Riyadh, May 13: Saudi Arabia’s cabinet on Tuesday urged oil-producing nations not only to adhere to agreed cuts to production, but further reduce output to help restore balance in global oil markets, state news agency SPA reported.

In issuing the call to OPEC+, which includes members of the Organization of the Petroleum Exporting Countries plus Russia and other nations, ministers said the Kingdom is committed to supporting the stability of global oil markets.

After the meeting, acting Minister of Media Majed Al-Qasabi said that in addition to its commitment to the OPEC+ agreement, the Kingdom will voluntarily reduce output by an additional 1 million barrels a day in June. It will also try to implement additional cuts this month, with the consent of its customers, he added.

The cabinet said the Saudi initiatives aim to encourage other countries, whether they have signed up to the OPEC+ agreement or not, to adhere to its reduced rates and to cut output even further to help stabilize global oil markets.

During the cabinet meeting, which was conducted using video conferencing, King Salman also briefed ministers on his recent telephone conversation with US President Donald Trump. He said they affirmed the historical and strategic relationship between the two countries and their commitment to the continuation of joint efforts to enhance security and stability in the region.

Ministers were then updated on the latest developments in the corona virus crisis, including the steps being taken locally and internationally to control it and safeguard public health, the number of cases in the Kingdom and the care being provided to those who are infected. They also reviewed details of the active screening and testing programs in all parts of the country, which have helped to keep the number of deaths relatively low compared to global rates.

The cabinet praised the efforts being made by government officials to combat the pandemic, and stressed that citizens and expatriates must abide by the precautionary and preventive measures introduced to prevent the spread of the virus.

Ministers described the decision by Saudi Arabia to host the Pledging Event for the Humanitarian Crisis in Yemen 2020 on June 2 as an extension of the Kingdom’s humanitarian and development contribution, which reflects its pioneering role in supporting its neighbor.

The cabinet also welcomed the formation of the new government in Iraq and reiterated Saudi Arabia’s support for the nation and its readiness to work with the new administration to strengthen relations and enhance security and stability in the region.

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