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

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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World Health Organisation says global coronavirus tally topped 10.3 million

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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Actor Rajinikanth defends Govt on CAA, says it won't affect Indian Muslims

News Network

February 5,2020

Chennai, Feb 5: The popular cine actor Rajinikanth has defended the Union Government on the Citizenship Amendment Act, saying it will not affect the Indian Muslims.

In a brief interaction with reporters this morning in Chennai, the matinee idol said if the Muslims are affected by the CAA, he would be at the forefront in their defence. He asked how will the legislation affect the Indian Muslims when they chose to stay back in the country to make it their motherland. Mr Rajinikanth also supported the National Population Register saying it has been in force even in the past.

On the NRC, Mr Rajinikanth said the Government has already made it clear that its nationwide rollout has not been even discussed so far. Mr Rajinikanth is nourishing political ambitions and has made it clear that he would plunge into politics ahead of the Tamil Nadu Assembly Elections in the state which is due in 2021.

Comments

This law violates the fundamentals of the Indian constitution. Whey they are seeing the Muslims angle first?

It looks that they are misinforming the public by diverting into a Muslim only issue. If that was the case, why so many non-Muslims are protesting? I looks like Rajini has back-end support to the center's CAA move.

He is another crack, hamare desh main pagal logon ki kami nahi

What can expect from ex KSRTC bus conductor

clear sign of ZERO knowedge with Indian constitution.

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Leaders are feeling suffocated in Cong: Amit Shah asks party to self-introspect

News Network

June 25,2020

New Delhi, Jun 25: Union Home Minister Amit Shah on Thursday hit out at Congress for "unceremoniously sacking" its spokesperson and said that leaders in the opposition party are "feeling suffocated".

To substantiate his point, Shah referred to the recent Congress Working Committee (CWC) meet in which senior members and younger members raised a few issues, however, they were "shut down".

Taking to Twitter, Shah posted two English dailies' articles titled -- "Not scared of PM Modi, but many in the party dodge him: Rahul at Congress Working Committee meet" and "Congress removes Sanjay Jha as party spokesperson after critical article".

Last week, Jha was dropped as AICC spokesperson and Abhishek Dutt and Sadhna Bharti appointed as National Media Panelist of Congress party.

"During the recent CWC meet, senior members and younger members raised a few issues. But, they were shouted down. A party spokesperson was unceremoniously sacked. The sad truth is - leaders are feeling suffocated in Congress," the Union Minister tweeted.

Meanwhile, Shah also targetted Congress on the completion of 45 years of emergency, which was imposed by former Prime Minister Indira Gandhi on June 25, 1975 and asked the party to self introspect.

"As one of India's opposition parties, Congress needs to ask itself: Why does the Emergency mindset remain? Why are leaders who do not belong to 1 dynasty unable to speak up? Why are leaders getting frustrated in Congress? Else, their disconnect with people will keep widening," he wrote.

Comments

Jha the spokesperson, tried to be under the payroll of BJP, so disciplinary action was imminent.

Discipline has no compromise.

If i am not wrong you have already purchased suffocated leaders from congress.