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
April 29,2020

Mumbai, Apr 29: Irrfan Khan, one of India's finest and most versatile actors, lost his battle with a rare form of cancer and died in a Mumbai hospital on Wednesday, a statement from his family said. He was 54

Irrfan, who was diagnosed with neuroendocrine tumour in 2018, is survived by his wife Sutapa and his sons Babil and Ayaan.

It is the second tragedy for the family in less than a week. The ?Maqbool? actor lost his mother, 95-year-old Saeeda Begum, in Jaipur just four days ago and could not attend the funeral because of the nationwide lockdown.

Irrfan, that rare actor who straddled multiple worlds, making his mark in both international and Indian cinema in roles intense and light-hearted, was admitted to the intensive care unit of the Kokilaben Dhirubhai Ambani Hospital with a colon infection

?It's saddening that this day, we have to bring forward the news of him passing away. Irrfan was a strong soul, someone who fought till the very end and always inspired everyone who came close to him. After having been struck by lightning in 2018 with the news of a rare cancer, he took life soon after as it came and he fought the many battles that came with it,? the statement from his family said

?Surrounded by his love, his family for whom he most cared about, he left for heavenly abode, leaving behind truly a legacy of his own. We all pray and hope that he is at peace. And to resonate and part with his words he had said, 'As if I was tasting life for the first time, the magical side of it',? it added.

The news of his death was first confirmed by his "Piku" director Shoojit Sircar who sent his condolences to the family and doffed his hat to the actor's fighting spirit

"My dear friend Irfaan. You fought and fought and fought. I will always be proud of you.. we shall meet again.. condolences to Sutapa and Babil.. you too fought, Sutapa you gave everything possible in this fight. Peace and Om shanti. Irfaan Khan salute," the director said on Twitter.

Irrfan's death came the morning after news that he had been admitted to the ICU with a colon infection.

The self-effacing National Award winner, who acted in films as diverse as ?Life of Pi?, ?The Namesake? and ?Haasil?, had stayed away from the public eye after his diagnosis in 2018 when he went to the UK for treatment.

He returned home in 2019 and shot for "Angrezi Medium", the sequel to his 2017 hit "Hindi Medium". However, his health condition prevented him from promoting the movie, which hit the theatres in March just before the lockdown that began on March 25.

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News Network
January 31,2020

New Delhi, Jan 31: Nirbhaya's mother Asha Devi on Friday said she will continue her fight till the convicts in the 2012 gangrape and murder case are hanged, shortly after a Delhi court postponed the execution of death warrants till further order.

Devi told reporters her "hopes are dashed" but she will continue her fight.

"These convicts have no right to live. We keep getting disappointed by the system. I will continue my fight till the convicts are hanged," she said.

A Delhi court postponed the execution of death warrants of the four convicts in the Nirbhaya gangrape and murder case till further order.

Additional sessions judge Dharmender Rana passed the order on a plea by the convicts seeking a stay on their execution on Saturday, February 1.

Devi said because of the loopholes in law the "criminals' lawyers had the audacity to challenge me in court that they will not be hanged".

The black warrants for execution of the death sentence against Pawan Gupta, Vinay Kumar Sharma, Akshay Kumar and Mukesh Kumar Singh, were issued on January 17.

A 23-year-old physiotherapy intern who came to be known as "Nirbhaya" (the fearless one) was gangraped and savagely assaulted on the night of December 16, 2012, in a moving bus in South Delhi. She died of her injuries a fortnight later in a Singapore hospital.

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Agencies
July 13,2020

New Delhi, Jul 13: The Income Tax Department has facilitated a new functionality for banks and post offices to ascertain TDS applicability rates on cash withdrawal of above Rs 20 lakh in case of a non-filer of the income-tax return and that of above Rs 1 crore in case of a filer of the income-tax return.

In a statement, the Central Board of Direct Taxes (CBDT) said that now banks and post offices have to only enter the PAN of the person who is withdrawing cash for ascertaining the applicable rate of TDS.

So far, more than 53,000 verification requests have been executed successfully on this facility, a statement by the CBDT said.

"CBDT today said that this functionality available as 'Verification of applicability u/s 194N' on www.incometaxindiaefiling.gov.in since 1st July 2020, is also made available to the Banks through web-services so that the entire process can be automated and be linked to the Bank's internal core banking solution," it said.

On entering PAN by the bank or the post office, a message will be instantly displayed on the departmental utility: "TDS is deductible at the rate of 2 per cent if cash withdrawal exceeds Rs 1 crore", in case the person withdrawing cash is a filer of the income-tax return.

In case the person withdrawing cash is a non-filer of income tax return, the message shown would be: "TDS is deductible at the rate of 2 per cent if cash withdrawal exceeds Rs 20 lakh and at the rate of 5 per cent if it exceeds Rs 1 crore."

The CBDT said that the data on cash withdrawal indicated that huge amount of cash is withdrawn by the persons who have never filed income-tax returns.

To ensure filing of return by these persons and to keep track on cash withdrawals by the non-filers, and to curb black money, the Finance Act, 2020 with effect from July 1, 2020 further amended IT Act to lower threshold of cash withdrawal to Rs 20 lakh for the applicability of this TDS for the non-filers and also mandated TDS at the higher rate of 5 per cent on cash withdrawal exceeding Rs 1 crore by the non-filers.

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