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
June 15,2020

New Delhi, Jun 15: With an increase of 11,502 cases in the past 24 hours, the COVID-19 count in India reached 3,32,424 on Monday, according to the Union Health and Family Welfare Ministry.

The spike is marginally lower than the highest-ever spike of 11,929 new cases the country registered a day earlier.

With 325 deaths being reported from across the country, the toll due to COVID-19 has now reached 9,520.

The COVID-19 count includes 1,53,106 active cases while 1,69,798 patients have been cured and discharged or migrated so far.

Maharashtra with 1,07,958 cases continues to be the worst-affected state in the country with 53,030 active cases while 50,978 patients have been cured and discharged in the state so far. 3,950 deaths have been reported due to the infection so far from Maharashtra.

It is followed by Tamil Nadu with 44,661 cases and the national capital with 41,182 confirmed cases.

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News Network
February 17,2020

Mumbai, Feb 17: The Shiv Sena on Monday said the ongoing preparation for the much awaited visit of US President Donald Trump is a reflection of the "slave mentality" of Indians.

Trump's India trip is like the visit of a "Badshah" (emperor), an editorial in Sena mouthpiece 'Saamana' said.

Taking a dig at the construction of a wall on a plot having several slum structures in Ahmedabad ahead of Trump's visit there, the Sena said the US president's trip would neither stop the fall of rupee's value in forex market nor offer betterment to those (slum dwellers) behind the wall.

"Before Independence, British King or Queen used to visit one of their slave nations like India. The kind of preparations going on from taxpayers' money for the arrival of Trump is similar to it. This reflects the slave mentality of Indians," it said.

The Sena also took a swipe at Prime Minister Narendra Modi over the Ahmedabad Municipal Corporation's (AMC) move to build wall on a plot to "hide the slums" on the route through which Trump's convoy would pass.

"Former prime minister Indira Gandhi had once given the slogan 'Garibi Hatao', which was ridiculed for a long time. It seems now Modi's plan is 'Garibi chupao' (hide poverty)," the Marathi publication said.

Is there any financial allocation for such a wall being built in Ahmedabad? Is the US going to offer loan to India to build such walls across the country? it wondered.

"We have heard Trump is going to be in Ahmedabad for only three hours but the wall construction is costing almost Rs 100 crore to the state exchequer," it said.

It is basically a political arrangement between Prime Minister Modi and US President Trump, the Sena claimed.

Last year, 'Howdy, Modi!' (a mega event jointly addressed by the Indian prime minister and Trump) was organised in the US, it noted.

A similar programme, "Kem Chho Trump" (Gujarati expression for how are you Trump), has been now organised (in Ahmedabad) ahead of the US elections, chiefly because of a sizable number of Gujarati people living in America, the Shiv Sena claimed.

"But this visit of President Trump is neither going to stop further fall of rupee in the forex market nor offer betterment to those behind the wall (being built in front of slums in Ahmedabad)," it said.

The Sena said Trump is "not someone very wise or a statesman or someone who cares for the whole world", but he has to be treated with respect as he represents the mighty US.

"Sometimes you have to treat someone with respect to get your things done," it quipped.

The AMC on Friday said the construction of the wall, around four feet in height, was approved much before Trump's Gujarat visit was finalised.

Trump is scheduled to visit Modi's home state Gujarat on February 24.

He will visit the famous Sabarmati Ashram in Ahmedabad and take part in a roadshow with Modi. After that, the two leaders will inaugurate a new cricket stadium in Motera and address a gathering there, with an expected audience of over a lakh people.

While it was earlier speculated that the programme would be called 'Kem Chho Trump', the Ahmedabad Municipal Corporation on Sunday tweeted a series of posters confirming that the event is now christened as 'Namaste Trump', apparently to give it a pan-India appeal.

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News Network
February 19,2020

Washington, Feb 19: Sri Srinivasan, a prominent Indian-American judge, has created history by becoming the first person of South Asian descent to lead a powerful federal circuit court considered next only to the US Supreme Court.

Srinivasan, 52, became the Chief Judge of the United States Court of Appeals for the DC Circuit.

An Obama appointee who has already been considered for a Supreme Court seat twice, donned the mantle of the chief judge of the DC federal court circuit on February 12.

Srinivasan succeeded Judge Merrick Garland, who has been a member of the DC Circuit since 1997 and Chief Judge since 2013. He will remain on the bench, a press release said.

Notably, Garland's nomination to the Supreme Court by the then president Barack Obama was blocked by Senate Republicans in 2016.

Srinivasan, was appointed to the US Court of Appeals for the District of Columbia Circuit in May 2013.

He was the first ever Indian-American to be appointed to the second most powerful court of the US.

Neomi Rao, nominated by President Donald Trump, is the second Indian American on this powerful judiciary bench.

History being made on the DC Court of Appeals. Congratulations, Judge Srinivasan! Senator Mark Warner said.

Congratulations to Judge Sri Srinivasan on becoming the Chief Judge of the U.S. Court of Appeals for the D.C. Circuit! A milestone for the Indian-American/Kansan community (and yet another piece of evidence my family can use that I'm underachieving), US Federal Communications Commission Chair Ajit Pai said.

According to The Washington Post, Srinivasan spoke recently about his path to the bench at an event celebrating women in the law, a field where men still dominate leadership positions.

"Everybody doubts their belonging and worthiness in some measure. I definitely did and still do. This is just going to be a part of the thing when you're looking out in the world in which everyone isn't like you. It's natural to doubt whether you belong and whether you're worthy, he said, "but you do belong and you are worthy.

Born in Chandigarh, and raised in Lawrence, Kansas, he received a B.A. from Stanford University, a J.D. from Stanford Law School, and an M.B.A. from the Stanford Graduate School of Business.

Following graduation, he served as a law clerk to Judge J. Harvie Wilkinson III of the US Court of Appeals for the Fourth Circuit, as a Bristow Fellow in the Office of the US Solicitor General, and as a law clerk to US Supreme Court Justice Sandra Day O'Connor.

From 2011 until his appointment to the US Court of Appeals, Judge Srinivasan served as the Principal Deputy Solicitor General of the United States.

He has argued 25 cases before the US Supreme Court. He has also taught appellate advocacy at Harvard Law School as well as a seminar on civil rights statutes and the Supreme Court at Georgetown University Law Center.

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