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
January 6,2020

Jan 6: India’s Finance Ministry has delivered a challenge to its revenue collectors: meet tax targets despite $20 billion of corporate tax cuts.

Through a video conference on Dec. 16, officials were exhorted to meet the direct tax mop-up target of 13.4 trillion rupees ($187 billion), a government official told reporters. Collection in the eight months to November grew at 5% from a year earlier, against the desired 17%.

The missive shows Prime Minister Narendra Modi’s urgent need to buoy public finances in a slowing economy where April-November tax collections were half the amount budgeted. Authorities withheld some payments to states and have capped ministries’ expenditure as the fiscal deficit ballooned beyond the target.

The government’s efforts to maintain its deficit goal goes against advice from some quarters, including central bank Governor Shaktikanta Das, who urged more spending to spur economic growth.

It’s uncertain though how much room Modi’s administration has to boost expenditure, given that it may already be borrowing as much as 540 billion rupees through state-run companies, a figure that isn’t reflected on the federal balance sheet. Uncertainty about public finances pushed up sovereign yields in November and December, compelling Das to announce unconventional policies to keep costs in check.

“This is not a time to conceal the fiscal deficit by off-budget borrowing or deferring payments,” said Indira Rajaraman, an economist and a former member of the Reserve Bank of India’s board. “If they were to stick to the target, that would be catastrophic because there is so much pump-priming that is needed right now.”

GDP grew 4.5% in the quarter ended September, the slowest pace in more than six years as both consumption and investments cooled in Asia’s third-largest economy. Only government spending supported the expansion, piling pressure on Modi to keep stimulating.

S&P Global Ratings warned in December it may downgrade India’s sovereign ratings if economic growth doesn’t recover. Government support seems to be waning now, with ministries asked to cap spending in the final quarter of the financial year at 25% of the amount budgeted rather than 33% allowed earlier. This new rule will hamstring sectors including agriculture, aviation and coal, where not even half of annual targets have been disbursed.

As the federal government runs short of money, it’s been delaying payouts to state administrations.

Private hospitals have threatened to suspend cash-less services to government employees over non-payment of dues, while a builder informed the stock exchange about delayed rental payments from no less than the tax office itself.

India is considering a litigation-settlement plan that will allow companies to exit lingering tax disputes by paying a portion of the money demanded by the government, the Economic Times newspaper reported Saturday.

The move will help improve the ease of doing business besides unlocking a part of the almost 8 trillion rupees ($111 billion) caught up in these disputes. The step, which is being considered as part of the annual budget, could also bridge India’s fiscal gap.

Finance Minister Nirmala Sitharaman has refused to comment on the deficit goal before the official budget presentation due Feb. 1.

A deviation from target, if any, “will need to be balanced with a credible consolidation plan further-out,” said Radhika Rao, an economist at DBS Group Holdings Ltd. in Singapore.

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News Network
May 23,2020

Karachi, May 23: Ninety-seven people were killed and two survived when a passenger plane crashed into homes in Pakistan's southern city of Karachi, health officials said Saturday.

The Pakistan International Airlines (PIA) plane had made multiple approaches to land at the city's airport when it came down in a residential area, damaging buildings and sparking a rescue operation that lasted into the night.

All passengers and crew had been accounted for and the bodies of those killed had been recovered from the crash site, the Sindh Health Ministry said, adding that 19 had been identified.

A local hospital earlier reported it had received the bodies of people killed on the ground.

The site remained cordoned off on Saturday morning.

The crash sent plumes of smoke were into the air as rescue workers and residents searched the debris for people and as firefighters tried to extinguish the flames.

An AFP reporter witnessed charred bodies being loaded into ambulances.

PIA said the plane lost contact with air traffic control just after 2:30 pm (0930 GMT) travelling from Lahore to Karachi.

The disaster comes as Pakistanis prepare to celebrate the end of Ramadan and the beginning of Eid al-Fitr, with many travelling back to their homes in cities and villages.

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News Network
January 27,2020

Jehanabad, Jan 27: The police here carried out a raid at the ancestral house of anti-CAA activist Sharjeel Imam, who has been slapped with a sedition case in the national capital for alleged inflammatory speeches he gave at Shaheen Bagh and the Jamia Milia Islamia, a senior official said on Monday.

According to Superintendent of Police, Jehanabad, Manish Kumar, Imams house in Kako police station area was raided late on Sunday night following "help sought by central agencies" which are investigating the cases lodged against the JNU research scholar.

Imam was not found at his house but two of his relatives and their driver were detained for interrogation and let off thereafter, the SP said.

A graduate in computer science from IIT-Mumbai, Sharjeel Imam had shifted to Delhi for pursuing research at the Centre for Historical Studies, JNU.

He was slapped with a sedition case after his alleged speeches went viral on the social media wherein he was heard speaking about Assam's possible secession from the country in the wake of the Citienship (Amendment) Act (CAA).

Earlier, he had been booked on similar charges at a police station in Aligarh for a speech he delivered on the AMU campus.

Besides, a case under the stringent anti-terror law UAPA has been registered against him at Assam.

Imams late father Akbar Imam was a local JD(U) leader who had unsuccessfully contested an assembly election in his lifetime.

Reacting to the developments, his distraught mother Afshan Rahim told the media, "My son is innocent. He is a bright young man and not a thief or a pickpocket. I swear in the name of God that I do not know about his whereabouts. But I can guarantee that upon learning about the cases, he will appear before the investigating agencies and fully cooperate in the probe."

She said that it has been a long time since she met her son though she had a telephonic conversation with him a few weeks ago.

"He was obviously disturbed by the CAA and fears of the National Register of Citiznes (NRC) about being implemented across the country which, he said, would affect not just Muslims but all poor people," she said.

In fact, after 15 days of Shaheen Bagh protest, he had asked the agitators there to withdraw and watch the situation for a month, and then decide on the further course of action, she said. "But they refused to relent. He was calling for a 'chakkajam' (road blockade). He is just a kid and not capable of instigating people for secession," she added.

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