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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Agencies
July 10,2020

Kanpur, Jul 10: Kanpur encounter main accused Vikas Dubey, who was injured in an encounter with the police, died on Friday, the police said.

"Gangster Vikas Dubey arrested for killing eight policemen is dead," confirmed the police.

According to SP Kanpur West Anil Kumar, gangster Vikas Dubey attempted to flee after the car overturned. Dubey attempted to flee by snatching pistol of the injured policemen. However, he was shot in the retaliatory firing.

"Vikas Dubey attempted to flee by snatching pistol of the injured policemen after the car overturned. Police tried to make him surrender, during which he fired at the policemen. He was injured in retaliatory firing by police. He was later rushed to the hospital," SP Kanpur West told reporters here.

Dubey, the main accused in the Kanpur encounter was arrested by the police in Ujjain on Thursday morning. He was on the run for the last six days and had come to Ujjain to offer prayers at Temple, where he was identified by a security guard at the shrine.

The gangster is the main accused in the encounter that took place in Bikru village in Chaubeypur area of Kanpur last week, in which a group of assailants allegedly opened fire on a police team, which had gone to arrest Dubey. Eight police personnel were killed in the encounter.

Dubey managed to escape after the killing.  The Uttar Pradesh police launched a hunt for him and raised the bounty on him to Rs 5 lakh.

Bahua Dubey and Prabhat Mishra, close aides of the main accused, were killed in separate encounters in Etawah and Kanpur respectively, on Thursday.

The main accused's other aide Shyamu Bajpai was arrested by the Chaubeypur police following an encounter. He carried a reward of Rs 25,000, the police informed on Wednesday. Earlier the same day, Uttar Pradesh's Special Task Force (STF) gunned down Vikas Dubey's close aide Amar Dubey in Hamirpur district.

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Kannadiga
 - 
Friday, 10 Jul 2020

No one fool other than ghobar society will believe on this news. Totally a goonda raj by yogiraaj.  He tried to offer 1crore to all killed policemen. But locals obligation now this is the  new drama. One way this is a lesson to his and his chaddi society's followers that party can take their own soldiers life for the self benefit.

Long Live India

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News Network
May 7,2020

Dubai/Abu Dhabi, May 7: A group passengers who are scheduled to fly to Kozhikode on the first COVID-19 Indian repatriation flight have begun streaming in to Terminal 2 at Dubai International Airport.

Wearing masks and gloves, the passengers are now waiting for the medical screening and check-in services to begin.

Airport officials gave entry to the departure terminal only to passengers with tickets.

Naif resident Mahamood P.P, 60, was among the first to reach as he was not informed about the change in the flight schedule, he told Gulf News.

“I reached here at 9.30am as I didn’t get any information about the 2.10pm flight getting rescheduled to the evening,” he said.

Suffering from a heart disease, Mahmood, who works as a juice maker at a juice shop near Naif Police station, said he stepped out of his room for the first time in two months.

“As there were many cases in Naif, I never went out because of my health condition. Since I was not in contact with anyone else other than my roommates who also never went out, I didn’t go for the COVID screening also. I was worried that I might be exposed to infection while waiting for the tests,” he said.

He thanked the Indian Consulate for giving him priority to fly home. “I need to go for my heart checkup. So I wanted to fly home as soon as possible.”

However, he said his son, a civil engineer who came here searching for a job, is not flying back though he is on a visit visa.

“Since the UAE government has allowed people on visit visa to stay here till December, he has decided to try his luck in getting a job,” said Mahamood.

Sneha Thomas, who is eight months pregnant, was also among the first to arrive at the airport.

Her husband Somi Jose came to drop her.

Thomas is among 11 pregnant women flying on the Dubai-Kozhikode flight.

Sharjah resident for 30 years, Mohammed Ali Yaseen, who is also the secretary of the Kerala Muslim Cultural Centre in Sharjah, said he is flying home as the restaurant he was running had to be closed due to a demolition plan of the building.

“Three months ago I got the notice to vacate the building and I had to close the restaurant. I was looking for another shop. But then the coronavirus hit. Now there is no point in me opening me a new shop as those who are already operational are not getting any business.”

He said he decided to drop the plan and go home for now. “My visa and license are still valid. I will try to come back when this pandemic ends and things are better.”

Meanwhile, at the Au Dhabi International Airport, families with kids were given priority to proceed towrards check-in. at terminal 3. The passengers coming in right now were mostly women who were on a visit visa. Pregnant women and the elderly too were given priority.

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Agencies
July 1,2020

The ILO has warned that if another Covid-19 wave hits in the second half of 2020, there would be global working-hour loss of 11.9 percent - equivalent to the loss of 340 million full-time jobs.

According to the 5th edition of International Labour Organisation (ILO) Monitor: Covid-19 and the world of work, the recovery in the global labour market for the rest of the year will be uncertain and incomplete.

The report said that there was a 14 percent drop in global working hours during the second quarter of 2020, equivalent to the loss of 400 million full-time jobs.

The number of working hours lost across the world in the first half of 2020 was significantly worse than previously estimated. The highly uncertain recovery in the second half of the year will not be enough to go back to pre-pandemic levels even in the best scenario, the agency warned.

The baseline model – which assumes a rebound in economic activity in line with existing forecasts, the lifting of workplace restrictions and a recovery in consumption and investment – projects a decrease in working hours of 4.9 percent (equivalent to 140 million full-time jobs) compared to last quarter of 2019.

It says that in the pessimistic scenario, the situation in the second half of 2020 would remain almost as challenging as in the second quarter.

“Even if one assumes better-tailored policy responses – thanks to the lessons learned throughout the first half of the year – there would still be a global working-hour loss of 11.9 per cent at the end of 2020, or 340 million full-time jobs, relative to the fourth quarter of 2019,” it said.

The pessimistic scenario assumes a second pandemic wave and the return of restrictions that would significantly slow recovery. The optimistic scenario assumes that workers’ activities resume quickly, significantly boosting aggregate demand and job creation. With this exceptionally fast recovery, the global loss of working hours would fall to 1.2 per cent (34 million full-time jobs).

The agency said that under the three possible scenarios for recovery in the next six months, “none” sees the global job situation in better shape than it was before lockdown measures began.

“This is why we talk of an uncertain but incomplete recovery even in the best of scenarios for the second half of this year. So there is not going to be a simple or quick recovery,” ILO Director-General Guy Ryder said.

The new figures reflect the worsening situation in many regions over the past weeks, especially in developing economies. Regionally, working time losses for the second quarter were: Americas (18.3 percent), Europe and Central Asia (13.9 percent), Asia and the Pacific (13.5 percent), Arab States (13.2 percent), and Africa (12.1 percent).

The vast majority of the world’s workers (93 per cent) continue to live in countries with some sort of workplace closures, with the Americas experiencing the greatest restrictions.

During the first quarter of the year, an estimated 5.4 percent of global working hours (equivalent to 155 million full-time jobs) were lost relative to the fourth quarter of 2019. Working- hour losses for the second quarter of 2020 relative to the last quarter of 2019 are estimated to reach 14 per cent worldwide (equivalent to 400 million full-time jobs), with the largest reduction (18.3 per cent) occurring in the Americas.

The ILO Monitor also found that women workers have been disproportionately affected by the pandemic, creating a risk that some of the modest progress on gender equality made in recent decades will be lost, and that work-related gender inequality will be exacerbated.

The severe impact of Covid-19 on women workers relates to their over-representation in some of the economic sectors worst affected by the crisis, such as accommodation, food, sales and manufacturing.

Globally, almost 510 million or 40 percent of all employed women work in the four most affected sectors, compared to 36.6 percent of men, it said.

The report said that women also dominate in the domestic work and health and social care work sectors, where they are at greater risk of losing their income and of infection and transmission and are also less likely to have social protection.

The pre-pandemic unequal distribution of unpaid care work has also worsened during the crisis, exacerbated by the closure of schools and care services.

Even as countries have adopted policy measures with unprecedented speed and scope, the ILO Monitor highlights some key challenges ahead, including finding the right balance and sequencing of health, economic and social and policy interventions to produce optimal sustainable labour market outcomes; implementing and sustaining policy interventions at the necessary scale when resources are likely to be increasingly constrained and protecting and promoting the conditions of vulnerable, disadvantaged and hard-hit groups to make labour markets fairer and more equitable.

“The decisions we adopt now will echo in the years to come and beyond 2030. Although countries are at different stages of the pandemic and a lot has been done, we need to redouble our efforts if we want to come out of this crisis in a better shape than when it started,” Ryder said. 

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