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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Agencies
February 20,2020

Chennai, Feb 20: Three people, including an assistant director were killed and 9 others injured when a crane used for the shooting of “actor Kamal Haasan starrer “Indian 2” film crashed down at Nazarathpet near Poonamallee here late on Wednesday night.

Police said the accident occurred when a group of workers were engaged in erecting a set for a scene at EVP film city, private studio. As the crane crashed down, a heavy-duty light stand that was mounted on it also fell on the workers.

Mr Haasan and the film director S.Shankar escaped unhurt in the accident.

The deceased were identified as Krishna (34), an assistant director of the film, Madhu (29) and Chandran (60), who was part of the catering team.

Tamil Nadu Fire and Rescue Services personnel, along with a fire tender from Irungattukottai rushed to the spot and retrieved the bodies from the spot.

Mr Haasan, who was at the accident spot, also helped to transport the injured people to a private hospital near Poonamallee.

The bodies were sent to the Government General Hospital for post-mortem.

The Nazarathpet police have filed a case and are investigating the cause of the accident.

Meanwhile, Mr.Haasan condoled the death of three people during the film shoot. “The accident is the most horrific I have seen in my film career. I have lost three colleagues, but my pain pales in comparison to the grief of those who have lost their loved ones.

My deepest sympathies to them, he tweeted.

The Lyca productions also expressed condolences over the tragic accident. “We are extremely saddened with the unfortunate accident happened at the sets of Indian 2. We have lost three of our most hardworking technicians, it tweeted.

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News Network
July 2,2020

Geneva, Jul 2: The World Health Organization (WHO) has estimated the overall number of coronavirus cases globally at 10,357,662, with 508,055 people having died from the disease.

The UN health agency said in the situation report published on late Wednesday that 163,939 new cases had been recorded in the past day, while further 4,188 patients had died.

Americas continue to lead the count with over 5.2 million cases, followed by Europe with more than 2.7 million.

The WHO declared the COVID-19 outbreak a pandemic on March 11.

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News Network
February 6,2020

Washington, Feb 6: The US has expressed concern over the current situation of religious freedom in India and raised the issue with Indian officials, a senior State Department official has said.

The remarks came in the wake of widespread protests held across India against the Citizenship Amendment Act (CAA).

The senior State Department official, on condition of anonymity, said that he has met with officials in India about what is taking place in the nation and expressed concern.

"We are concerned about what's taking place in India. I have met with the Indian foreign minister. I've met with the Indian ambassador (to express my concern)," the official, who was recently in India, told reporters on Wednesday.

The US has also "expressed desire first to try to help and work through some of these issues", the official said as Secretary of State Mike Pompeo launched a 27-nation International Religious Freedom Alliance.

"To me, the initial step we try to do in most places is say what can we do to be of help you work through an issue to where there's not religious persecution. That's the first step, is just saying can we work with you on this," the official said.

India maintains that the Indian Constitution guarantees fundamental rights to all its citizens, including its minority communities.

It is widely acknowledged that India is a vibrant democracy where the Constitution provides protection of religious freedom, and where democratic governance and rule of law further promote and protect fundamental rights, a senior official of the Ministry of External Affairs has said.

According to the CAA, members of Hindu, Sikh, Buddhist, Jain, Parsi and Christian communities who have come from Pakistan, Bangladesh and Afghanistan till December 31, 2014 following religious persecution there will get Indian citizenship.

The Indian government has been emphasising that the new law will not deny any citizenship rights, but has been brought to protect the oppressed minorities of neighbouring countries and give them citizenship.

Defending the CAA, Prime Minister Narendra Modi last month said that the law is not about taking away citizenship, it is about giving citizenship.

"We must all know that any person of any religion from any country of the world who believes in India and its Constitution can apply for Indian citizenship through due process. There's no problem in that," he said.

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