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 Networkwork
May 14,2020

Bengaluru, May 14: ABB India has posted a profit after tax of Rs 66 crore during the first quarter (January to March) due to lower volumes including service revenue and unfavourable mix.

In Q1 CY19, it had reported a profit after tax of Rs 89 crore. ABB India follows calendar year as its fiscal year.

The company reported a profit including exceptional items and before tax of Rs 87 crore. The resultant under-absorption and mark-to-market impact due to forex volatility were partly offset by refund incomes and a one-time gain on sale of solar business during the quarter.

Revenues for the first quarter stood at Rs 1,522 crore, impacted by lower sales, non-receipt of delivery clearance, lower service revenue in the nationwide lockdown due to the COVID-19 pandemic. This impact primarily occurred in March, the company said in a statement.

ABB India said it continues to maintain a stable cash position of Rs 1,464 crore as on March 31 in a market where cash collection continues to be a challenge.

Besides, despite many activities coming to a standstill in March, the quarter was marked by commissioning for a mining major at Raigarh in Chhattisgarh, electrical and automation systems for a cement major and port and electrics, drives and automation for a leading mill in Bangladesh.

Terminal installation and commissioning for LPG, power management electrical control system for a leading refinery and commissioning of two units of a power plant in Kerala are some of the other projects where ABB's involvement ensured continuity and safe operations, it said.

On a global scale, the impact of COVID-19, as well as the fall in oil prices, has significantly impacted the short-term outlook. The global economy is expected to contract in 2020 after a rapid deterioration in outlook driven by the pandemic.

Despite unprecedented stimuli by governments and central banks around the world and initial signs of recovering economic activity in China, macro-indicators point to a global recession of uncertain duration as many countries continue to face restrictions with anticipated long-term economic consequences, said ABB India.

While the company is taking prompt action to adapt its operations and cost base to safeguard profitability, it expects the results in the coming quarter to be impacted due to the loss of volumes.

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Agencies
May 23,2020

Washington, May 23: President Donald Trump has labeled churches and other houses of worship as “essential" and called on governors nationwide to let them reopen this weekend even though some areas remain under coronavirus lockdown.

The president threatened Friday to “override” governors who defy him, but it was unclear what authority he has to do so.

“Governors need to do the right thing and allow these very important essential places of faith to open right now — for this weekend," Trump said at a hastily arranged press conference at the White House. Asked what authority Trump might have to supersede governors, White House press secretary Kayleigh McEnany said she wouldn't answer a theoretical question.

Trump has been pushing for the country to reopen as he tries to reverse an economic free fall playing out months before he faces reelection. White evangelical Christians have been among the president's most loyal supporters, and the White House has been careful to attend to their concerns throughout the crisis.

Following Trump's announcement, the Centers for Disease Control and Prevention released new guidelines for communities of faith on how to safely reopen, including recommendations to limit the size of gatherings and consider holding services outdoors or in large, well-ventilated areas.

Public health agencies have generally advised people to avoid gatherings of more than 10 people and encouraged Americans to remain 6 feet (1.8 meters) away from others when possible. Some parts of the country remain under some version of remain-at-home orders.

In-person religious services have been vectors for transmission of the virus. A person who attended a Mother's Day service at a church in Northern California that defied the governor's closure orders later tested positive, exposing more than 180 churchgoers. And a choir practice at a church in Washington state was labeled by the CDC as an early “superspreading" event.

But Trump on Friday stressed the importance of churches in many communities and said he was “identifying houses of worship — churches, synagogues and mosques — as essential places that provide essential services.”

“Some governors have deemed liquor stores and abortion clinics as essential” but not churches, he said. “It's not right. So I'm correcting this injustice and calling houses of worship essential." “These are places that hold our society together and keep our people united,” he added.

Dr. Deborah Birx, coordinator of the White House coronavirus task force, said faith leaders should be in touch with local health departments and can take steps to mitigate risks, including making sure those who are at high risk of severe complications remain protected.

“There's a way for us to work together to have social distancing and safety for people so we decrease the amount of exposure that anyone would have to an asymptomatic," she said.

A person familiar with the White House's thinking who spoke on condition of anonymity to discuss internal deliberations said Trump had called the news conference, which had not been on his public schedule, because he wanted to be the face of church reopenings, knowing how well it would play with his political base.

Churches around the country have filed legal challenges opposing virus closures.

In Minnesota, after Democratic Gov. Tim Walz this week declined to lift restrictions on churches, Roman Catholic and some Lutheran leaders said they would defy his ban and resume worship services. They called the restrictions unconstitutional and unfair since restaurants, malls and bars were allowed limited reopening.

Some hailed the president's move, including Kelly Shackelford, president of the conservative First Liberty Institute.

“The discrimination that has been occurring against churches and houses of worship has been shocking," he said in a statement. "Americans are going to malls and restaurants. They need to be able to go to their houses of worship.” But Rabbi Jack Moline, president of Interfaith Alliance, said it was “completely irresponsible” for Trump to call for a mass reopening of houses of worship.

“Faith is essential and community is necessary; however, neither requires endangering the people who seek to participate in them,” he said.

“The virus does not discriminate between types of gatherings, and neither should the president." Rhode Island Gov. Gina Raimondo, a Democrat, made clear that churches and other houses of worship will not resume in-person services in her state until at least next weekend and said she was skeptical Trump had the authority to impose such a requirement.

“It's reckless to force them to reopen this weekend. They're not ready,” she said. “We've got a good plan. I'm going to stick with it.” New Hampshire Gov. Chris Sununu, a Republican, said he would review the federal guidance, while maintaining a decision rests with him.

"Obviously we'd love to get to the point where we can get those open, but we'll look at the guidance documents and try to make some decisions rather quickly, depending on what it might say,” he said. “It's the governor's decision, of course.”

The CDC more than a month ago sent the Trump administration documents the agency had drafted outlining specific steps various kinds of organizations, including houses of worship, could follow as they worked to reopen safely.

But the White House dragged its feet, concerned that the recommendations were too specific and could give the impression the administration was interfering in church operations.

The guidance posted Friday contains most of the same advice as the draft guidance. It calls for the use of face coverings and recommends keeping worshippers 6 feet from one another and cutting down on singing, which can spread aerosolized drops that carry the virus.

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News Network
March 12,2020

New Delhi, Mar 12: The Supreme Court told the Uttar Pradesh government on Thursday that as of now, there was no law that could back their action of putting up roadside posters of those accused of vandalism during anti-CAA protests in Lucknow.

An apex court bench refused to stay the March 9 Allahabad High Court order directing the Yogi Adityanath administration to remove the posters.

The top court, which grilled the Uttar Pradesh government for putting up such posters in public, described the plea as a matter that needed "further elaboration and consideration".

A vacation bench of justices U U Lalit and Aniruddha Bose said a "bench of sufficient strength" would consider next week the Uttar Pradesh government's appeal against the Allahabad High Court order directing the state administration to remove the posters of those accused of vandalism during anti-CAA protests.

It directed the apex court registry to put up the case file before Chief Justice of India (CJI) S A Bobde so that a "bench of sufficient strength can be constituted at the earliest to hear and consider" the case next week.

During the hearing, the bench told Solicitor General Tushar Mehta, appearing for the Uttar Pradesh government, that it was a matter of "great importance".

It asked Mehta whether the state government had the power to put up such posters.

The top court, however, said there was no doubt that action should be taken against rioters and they should be punished.

Mehta told the court that the posters were put up as a "deterrent" and the hoardings only said that these persons were liable to pay for their alleged acts during the violence.

Senior advocate A M Singhvi, appearing for former IPS officer S R Darapuri whose poster has also been affixed in Lucknow, told the bench that the state was duty-bound to show the authority of law backing its action.

He said the action of the Uttar Pradesh government amounted to a "mega blanket" approach of naming and shaming these persons without final adjudication and it was an open invitation to common men to lynch them as the posters also had their addresses and photographs.

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