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
May 19,2024

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Mangaluru: Disgruntled BJP leader and former MLA K Raghupathi Bhat, who is contesting the legislative council election as an independent candidate from the South West Graduates constituency, said the BJP has adopted the “godfather culture” of the Congress.

Bhat told reporters here on Saturday, that he has not tried to appease any senior BJP leaders to get a party ticket to contest the MLC poll.

“I am contesting and seeking votes based on my achievements. My contesting may have a negative impact on the BJP. However, I want to go back to the BJP after winning this election,” Bhat said, and refused to answer the actual reason for the denial of a BJP ticket to him.

“I have no idea who played from behind that I was denied a ticket for the MLC poll.

Earlier, the BJP had a culture of selecting candidates for MLA and MLC polls by seeking the opinion of party workers at the booth level, followed by discussions at mandal and district levels.

Now the situation is such that even if one person’s name was sent from the state, the final list will be different. The godfather culture of the Congress has stretched into our party too. Only those who appease leaders get a ticket in the BJP. However, I have not appeased any leader. I believe in the support of party workers, and with this confidence I am contesting the election,” Bhat said.

To a query, Bhat said that he has not contacted by BJP leaders after deciding to contest the MLC poll.

“I have already requested all leaders that I should get the party’s Form B to contest the MLC poll from the South West Graduates constituency. I have told them that I am also contesting as an independent candidate on behalf of the BJP. The ultimate aim of my contesting the election is that senior leaders should know the injustice that honest party workers are facing in the BJP,” he said.

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News Network
May 12,2024

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Mangaluru: A native of Kerala was arrested on charge of misbehaving with crew on an Air India Express flight while travelling from Dubai to Mangaluru International Airport. The man even threatened to jump from the aircraft, according to officials. 

Siddartha Das, the security coordinator for Air India Express, lodged a complaint against the passenger, identified as Muhammad BC from Kannur, Kerala, after which he was caught by the airport security once the flight landed at Mangaluru. He was later handed over to the police.

DCP (Law and Order) Sidharth Goyal said the incident occurred on Flight IX814 on May 8.

When the flight was above the sea, Muhammad reportedly said he wanted to get off the plane, posing a threat to all on board. The unruly flyer was detained by airport security once the flight landed at Mangaluru International Airport and he was handed over to Bajpe police station officials.

Sources added once the flight took off from Dubai, the accused went to the lavatory and thereafter started inquiring with the cabin crew about a person named Krishna who was not on the flight. Muhammad kept on pressing the bell for in-flight assistance, even though the cabin crew members were near at hand. He then picked up a life jacket, gave it to a crew member, and said he wanted to use it upon landing.

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News Network
May 7,2024

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Udupi: Udupi became the second city on the Karnataka coast after Mangaluru to launch water rationing, a senior official said on Tuesday.

Commissioner of the Udupi City Municipal Corporation Rayappa said that the rationing system will come into force from Wednesday and will continue till the water in the reservoir reaches comfortable levels.

The dam built across the Swarna river at a place called Baje, which is the only source of water for Udupi city, recorded 3.25 meters of water as against the top level of 6.30 meters.

The decision of water rationing will be reviewed periodically until the reservoir regains its fullest levels, the official said.

The Mangaluru City Corporation resorted to water rationing on Saturday following declining water levels in the reservoir built across the Nethravati river at Thumbe. 

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