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
January 3,2020

New Delhi, Jan 3: US aviation regulator Federal Aviation Administration on Thursday warned America's airlines and their pilots that there is risk involved in operating flights in Pakistan airspace due to "extremist or militant activity", according to an official document.

"Exercise caution during flight operations. There is a risk to US civil aviation operating in the territory and airspace of Pakistan due to extremist/militant activity," said the US Federal Aviation Administration (FAA) in a notice to airmen (NOTAM) dated December 30, 2019.

The NOTAM is applicable to all US-based airlines and US-based pilots.

The US regulator said in its NOTAM that there continues to be a risk to US civil aviation sector from attacks against airports and aircraft in Pakistan, particularly for aircraft on the ground and aircraft operating at low altitudes, including during the arrival and departure phases of flights.

"The ongoing presence of extremist/militant elements operating in Pakistan poses a continued risk to US civil aviation from small-arms fire, complex attacks against airports, indirect weapons fire, and anti-aircraft fire, any of which could occur with little or no warning," it said.

The FAA said that while, to date, there have been no reports of man-portable air defense systems or Manpads being used against the civil aviation sector in Pakistan, some extremist or terrorist groups operating there are suspected of having access to these Manpads.

"As a result, there is potential risk for extremists/militants to target civil aviation in Pakistan with Manpads," it said.

The regulator added that pilots or airlines must report safety or security incidents - which may happen in Pakistan - to the FAA.

Pakistan on July 16 last year opened its airspace for India after about five months of restrictions imposed in the wake of a standoff with New Delhi.

Following the Balakot airstrikes by the Indian Air Force, Pakistan had closed its airspace on February 26 last year.

Pakistan in October last year had denied India's request to allow Prime Minister Narendra Modi's VVIP flight to use its airspace for his visit to Saudi Arabia over the Jammu and Kashmir issue.

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News Network
March 19,2020

New Delhi, Mar 19: Former Chief Justice of India Ranjan Gogoi took oath as Rajya Sabha MP on Thursday.

Gogoi's wife Rupanjali Gogoi, daughter, and son in law were also present in Parliament.

Congress staged a walkout from the Rajya Sabha over Gogoi's membership to the House.

Meanwhile, Union Minister Ravishankar Prasad welcomed Gogoi in the Rajya Sabha.

President Ram Nath Kovind had nominated the former CJI to the Rajya Sabha on March 16.

Gogoi served as the 46th Chief Justice of India from October 3, 2018, to November 17, 2019.

On November 9, 2019, a five-judge Bench headed by him had delivered the verdict in the long-pending Ramjanmabhoomi case.

Comments

Fairman
 - 
Thursday, 19 Mar 2020

People lost trust in Judiciary because of such horrible criminals.

 

He betrayed the whole nation. Unless he is booked, the judiciary will not restore the lost faith. 

 

 

The loss may be momentary in nature, It is the promise of the Almighty, He will ensure the justice is served to everyone. 

 

Angry Indian
 - 
Thursday, 19 Mar 2020

Pure slave like goo mutur....nice life DDDDOOOOGGGGG

 

ayes p.
 - 
Thursday, 19 Mar 2020

Fixed from judgement of babri masjid to rajya sabha member

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News Network
January 23,2020

Patna, Jan 23: "They should go wherever they want," Bihar Chief Minister and JDU supremo Nitish Kumar said on Thursday when asked of Prashant Kishor and Pavan Verma's repeated questions about the party's stand's on the newly enacted Citizenship Act.

"It is their personal decision. They should go wherever they want. We don't have an objection. Don't look at JDU in the context of statements by some people. JDU works with determination. We have a clear stand and don't have any confusion," the Chief Minister told reporters here.

"If they have something to tell, they should come and discuss it within the party. They should go wherever they want. They have my good wishes," he said.

JDU spokesperson and national general secretary Pavan Verma has questioned his party's alliance with the BJP in Delhi Assembly polls while Kishor has more than once made his differences with the party known on the issue of the amended Citizenship Act, and National Register of Citizens.

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