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.

Comments

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.

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
Agencies
June 15,2020

New Delhi, Jun 15: After Two Indian officials working with Indian High Commission in Pakistan wet missing on Monday,  the Ministry of External Affairs summoned Pakistan's Charge d'affaires to India in the national capital and told them not to interrogate or harass Indian officials.

"Two Indian High Commission officials are missing since morning while on official work. The matter has been taken up with the Pakistani authorities," Akhilesh Singh, First Secretary and spokesperson, Indian High Commission, Pakistan, said.

According to sources quoted by PTI news agency, the MEA told the  Pakistan's Charge d'affaires to India that the responsibility of safety and security of Indian personnel in Islamabad "lays squarely with Pakistani authorities."

"Pakistan was asked to ensure return of two Indian officials along with official car to Indian High Commission in Islamabad immediately," sources added. 

The incident comes after two Pakistani officials at the Pakistani High Commission in New Delhi were accused of espionage and deported.

The two officials have been missing since Monday morning. Officials said the issue has been taken up with the Pakistan government.

Earlier, a vehicle of India's Charge d'affaires Gaurav Ahluwalia was chased by Inter-Services Intelligence (ISI) member.

In March, the Indian High Commission in Pakistan sent a strong protest note to the foreign ministry in Islamabad protesting against the continuing harassment of its officers and staff by Pakistani agencies.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
March 7,2020

New Delhi, Mar 7: Prime Minister Narendra Modi turned emotional on Saturday when a woman beneficiary of his government's generic medicine programme told him that she had seen God in him.

Dehradun-resident Deepa Shah, who suffered paralysis in 2011, was interacting with the prime minister through video-conference on the occasion of Jan Aushadhi Diwas.

"I have not seen god, but I have seen God in you," she said, tears rolling down her eyes.

Modi was visibly emotional as the woman repeated her remark.

She also thanked the Uttarakhand chief minister and others who had helped her all along and said doctors had once told her that she cannot be cured.

"But on hearing your voice I have become better," she told Modi while profusely thanking the prime minister for his efforts to reduce the cost of medicines.

An emotional prime minister paused for a moment before telling her that it was her courage that had won over her disease and that she must carry on with the spirit.

Shah was expressing her plight and how she had suffered due to high cost of medicines after she suffered from paralysis in 2011 and has now started saving Rs 3,500 every month after benefitting from the government's low-cost generic medicines programme.

Soon after Shah rose to express her views, Modi asked her to sit and speak as he said she was uncomfortable while standing.

"You have defeated disease with your own will power. Your courage is your god and that same courage has given you the strength to emerge from such a big crisis. You should carry on this confidence in you," Modi told her.

He said some people still keep spreading rumours about generic medicines, going by their past experience, wondering how can medicines be available so cheap and that there must be something wrong with the medicine.

"But, by seeing you countrymen would gain confidence that there is nothing wrong in generic medicines. These medicines are not at all of inferior quality than any other medicine. These medicines have been certified by the best laboratories. These medicines are made in India and is 'Make in India' and are cheap," the prime minister said.

He said there is demand for generic medicines from India across the world and the government has made it mandatory for doctors to prescribe generic medicines to patients, unless necessary.

Comments

Sameeksha
 - 
Monday, 9 Mar 2020

Wowww so emotional... Lol .really god in you??? Drama king and queen

angry indian
 - 
Sunday, 8 Mar 2020

in 2002 riot we have seen shaitan in you..how come shaitan become GOD...

 

did he put atleat one tear for his mother, did he feel sad when pregnant muslim woman brutally murdered..

this guy is 21st century dajjal..

Suresh SS
 - 
Sunday, 8 Mar 2020

Big Nautanki, Dramebaz

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
July 9,2020

Ujjain, Jul 9: Kanpur encounter main accused Vikas Dubey has been arrested at a police station here on Thursday, as per sources in the Uttar Pradesh government.

"Vikas Dubey, the main accused in Kanpur encounter case, has been arrested at a police station in Ujjain," said UP government sources.

Dubey is the main accused in the encounter that took place in Kanpur last week, in which a group of assailants allegedly opened fire on a police team, which had gone to arrest him.

Eight police personnel were killed in the encounter.

Earlier today, Bahua Dubey and Prabhat Mishra, close aides of the main accused, were killed in separate encounters in Etawah and Kanpur respectively.

Whereas, Shyamu Bajpai, also an aide to Dubey, has been arrested by Chaubeypur police following an encounter. He carried a reward of Rs 25,000. Uttar Pradesh's Special Task Force (STF) had gunned down Vikas Dubey's close aide Amar Dubey in Hamirpur district, earlier on Wednesday.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.