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
November 21,2024

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After the US prosecutors charged Gautam Adani with bribery and fraud, Congress reiterated its call for a Joint Parliamentary Committee (JPC) probe into the transactions of the Adani group, and hit out at Prime Minister Narendra Modi, alleging an "internal nexus" between him and "his favourite businessman."

Senior Congress leader Jairam Ramesh said the indictment of Gautam Adani and others by the US Securities and Exchange Commission validates his party’s call for a Joint Parliamentary Committee investigation.

The Congress has been pushing for the probe since January 2023, raising concerns over alleged irregularities involving Adani and his business dealings, said Ramesh.

Ramesh referred to the party’s “Hum Adani ke Hain” series, where 100 questions were raised about the alleged scams and the links between Prime Minister Narendra Modi and Gautam Adani.
He noted that the questions remain unanswered, reiterating the need for accountability in the matter.

The US prosecutors have charged Adani with deceiving investors by concealing information about his firm's solar energy project in India, which allegedly involved bribery.

Adani has been charged with securities fraud and conspiracy, according to an indictment unsealed on Wednesday. The case focusses on an agreement between Adani Green Energy Ltd. and another organisation to supply 12 gigawatts of solar power to the Indian government.

'BETRAYAL OF INDIAN INVESTORS'

Congress leader Pawan Khera described the allegations against Gautam Adani and his conglomerate as a “betrayal of Indian investors.”

Taking to X, Khera outlined the US charges, including claims that Adani’s group bribed Indian government officials between 2020 and 2024 to secure contracts. Citing media reports, he also pointed out that Gautam Adani personally met a government official to advance the scheme.

Khera referred to a March 2024 incident where the Adani Group allegedly misled the Bombay Stock Exchange and the National Stock Exchange, calling it a “grave violation of investor trust.”

He further highlighted a March 2023 FBI raid on the premises of Sagar Adani, Gautam Adani’s nephew, where electronic devices were seized as part of the investigation.

'SEBI NOT ABLE TO PROVE ANY CHARGES AGAINST ADANI'

Shiv Sena (UBT) leader Priyanka Chaturvedi criticised central probe agencies following US charges against Gautam Adani and others in an alleged bribery case linked to solar energy contracts.

Chaturvedi raised concerns about corporate governance and regulatory oversight in the country. “They talk about corporate governance, responsibility, and accountability. The industrialists should be asked to follow the rules and regulations, but even the agencies were defending him. The SEBI has not yet been able to prove charges against him,” she said, pointing to what she viewed as failures in ensuring accountability.

'BROUGHT DISREPUTE TO INDIA'

On US charges against Gautam Adani, AAP leader Sanjay Singh called for a probe against the industrialist. He said that the probe should be conducted by an investigation agency under the Supreme Court.

"Adani Group has brought disrepute to India. This is a very serious matter. The PM of India should come forward and answer this. All the pending matters against Adani should be probed by an investigation agency under Supreme Court monitoring, and all the corruption done by him, within and outside the country, should come out before the country and action should be taken against him," he said.

BJP DFENDS

BJP IT cell chief Amit Malviya responded sharply to the Opposition’s criticism regarding allegations involving Adani Green Energy and US-based Azure Power. He pointed out that the charges in the indictment are only allegations and emphasised, “The defendants are presumed innocent unless and until proven guilty.”

Malviya argued that the crux of the case concerns agreements to supply 12 GW of power to the Solar Energy Corporation of India (SECI), contingent on SECI securing power purchase agreements with state electricity distribution companies (SDCs).

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News Network
November 11,2024

Udupi, Nov 11: A traveller reportedly lost ₹4.1 lakh after attempting to book a cab online in Udupi. 

At around 1:30 PM on November 7, the man from West Bengal searched for car rentals on Google and selected a website named "Shakti Car Rentals." Shortly after, he was contacted by someone claiming to be "Rohit Sharma," who directed him to pay a registration fee of ₹150 on the site.

After unsuccessful payment attempts via both his Canara Bank debit card and SBI credit card (without receiving an OTP), "Rohit Sharma" instructed him to pay the driver directly. But at 1:47 PM, he received messages showing deductions of ₹3.3 lakh from his SBI credit card and ₹80,056 from his Canara Bank debit card, totaling ₹4.1 lakh.

The complainant alleges fraud through a deceptive link disguised as a booking token fee. A case has been registered at Udupi Town Police Station.

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News Network
November 17,2024

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An Israeli airstrike on the office of Syria’s Baath party in Lebanon’s capital Beirut has killed the Lebanese resistance movement Hezbollah's Media Relations Officer, Mohammad Afif, reports say.

Lebanon's National News Agency (NNA) reported that the Israeli raid struck the Ba'ath party’s building in central Beirut district of Ras Al-Naba'a on Sunday, adding that the strike was an attempt to assassinate the leader of the resistance media front.

According to Baath Secretary-General Ali Hijazi, Afif was having a meeting in the Baath Party headquarters when Israel carried out the attack.

"Afif did not fight with weapons and did not lead a military unit in Hezbollah. Rather, he led a media unit," he said.

Reuters, Sky News, Al Jazeera and a number of Henrew-language media reported that Afif was killed in the Israeli strike.

However, Hezbollah has not yet confirmed Afif’s death or whether he was present at the site or not.

Earlier, the Lebanese Health Ministry said at least one person was killed and three others injured after an Israeli strike targeted a central district in Beirut.

Lebanon's al-Mayadeen television network reported that five people were killed in the attack.

The latest development came after Afif said Hezbollah was behind the Caesarea operation and targeting Netanyahu’s home during a speech at the Ghobeiry area in the southern suburbs of Beirut on October 22.

This was the second assassination attempt on Afif in the last two months, after he survived an attack on the Hezbollah media relations office several weeks ago.

Israel launched a ground assault and massive air campaign against Lebanon in late September after a year of exchanging fire across the Lebanese border in parallel with the Gaza war.

At least 3,287 people have been killed in Israeli strikes in Lebanon over the past year, with the vast majority in the past seven weeks. Another 14,222 have been wounded, mostly women and children.

In response to the ongoing aggression, the Lebanese resistance movement Hezbollah has been staging hundreds of retaliatory strikes against the occupied Palestinian territories and the Israeli forces trying to advance on southern Lebanese areas.

The movement has vowed to sustain its strikes until the regime ends the escalation.

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