California: Scientists have observed the brightest known flare emitted from a supermassive black hole. According to researcher it is a burst that shone with the intensity of nearly 10 trillion suns. Such an event was first recorded in 2018. This new occurrence is helping astronomers understand the behavior and surroundings of black holes in the early universe.
A camera at the Palomar Observatory in California detected the flare. It grew to peak brightness over three months. It is gradually fading since then. Researchers believe a big star drifting too close to the black hole and being torn apart caused the burst.
“At first, we did not really believe the numbers about the energy,” said study author Matthew Graham of the California Institute of Technology, which operates the observatory.
Nature Astronomy published the details of the flare on Tuesday. It informed that the black hole responsible for the flare is located about 10 billion light years away. It is the most distant event of its kind ever recorded. The universe was still relatively young at the time the flare is believed to have occurred.
Scientists say these events provide clues about the gas, stars and magnetic activity surrounding these black holes. According to Joseph Michail of the Harvard-Smithsonian Center for Astrophysics, who was not part of the study, such findings help researchers “probe the interaction of supermassive black holes with their environments early in the universe.”
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Panaji (PTI): As part of a crackdown against tourist establishments violating laws and safety norms in the aftermath of the Arpora fire tragedy, Goa authorities on Saturday sealed a renowned club at Vagator and revoked the fire department NOC of another club.
Cafe CO2 Goa, located on a cliff overlooking the Arabian Sea at Vagator beach in North Goa, was sealed. The move came two days after Goya Club, also in Vagator, was shut down for alleged violations of rules.
Elsewhere, campaigning for local body polls, AAP leader Arvind Kejriwal said the fire incident at Birch by Romeo Lane nightclub at Arpora, which claimed 25 lives on December 6, happened because the BJP government in the state was corrupt.
An inspection of Cafe CO2 Goa by a state government-appointed team revealed that the establishment, with a seating capacity of 250, did not possess a no-objection certificate (NOC) of the Fire and Emergency Services Department. The club, which sits atop Ozrant Cliff, also did not have structural stability, the team found.
The Fire and Emergency Services on Saturday also revoked the NOC issued to Diaz Pool Club and Bar at Anjuna as the fire extinguishers installed in the establishment were found to be inadequate, said divisional fire officer Shripad Gawas.
A notice was issued to Nitin Wadhwa, the partner of the club, he said in the order.
Campaigning at Chimbel village near Panaji in support of his party's Zilla Panchayat election candidate, Aam Aadmi Party leader Kejriwal said the nightclub fire at Arpora happened because of the "corruption of the Pramod Sawant-led state government."
"Why this fire incident happened? I read in the newspapers that the nightclub had no occupancy certificate, no building licence, no excise licence, no construction licence or trade licence. The entire club was illegal but still it was going on," he said.
"How could it go on? Couldn't Pramod Sawant or anyone else see it? I was told that hafta (bribe) was being paid," the former Delhi chief minister said.
A person can not work without bribing officials in the coastal state, Kejriwal said, alleging that officers, MLAs and even ministers are accepting bribes.
