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
May 5,2020

Dubai, May 5: Tickets on repatriation flights from UAE to India, which start on May 7, could be costlier than regular airfare, and adding to the financial woes of those flying back. Nearly 200,000 Indians in the UAE have registered on the website seeking to return home.

“A one-way repatriation ticket to Delhi will cost approximately Dh1,400-Dh1,650 - this would earlier have cost between Dh600-Dh700 [during these months],” said Jamal Abdulnazar, CEO of Cozmo Travel. “A one-way repatriation flight ticket to Kerala would cost approximately Dh1,900-Dh2,300.”

This can be quite a burden, as a majority of those taking these flights have either lost their jobs or are sending back their families because of uncertainty on the work front. To now have to pay airfare that is nearly on par with those during peak summer months is quite a blow.

Sources said that officials in Indian diplomatic missions have already initiated calls to some expats, telling them about likely ticket fares and enquiring about their willingness to travel.

Although many believed repatriation would be government-sponsored, Indian authorities have clarified that customers would have to pay for the tickets themselves. Those who thought they were entitled to free repatriation might back out of travel plans for now.

Fact of life

But aviation and travel industry sources say higher rates cannot be escaped since social distancing norms have to be strictly enforced at all times. That would limit the number of passengers on each of these flights.

“One airline can carry only limited passengers - therefore, multiple airlines are likely to get the approval to operate repatriation flights,” said Abdulnazar. “Also, airports will have to maintain safe distance for passengers to queue up at immigration and security counters.

“Therefore, it is recommended that multiple carriers fly into multiple Indian airports for repatriation to be expedited.”

The Indian authorities, so far, have not taken the easy decision to get its private domestic airlines into the rescue act. Gulf News tried speaking to the leading players, but they declined to provide any official statements. So far, only Air India, the national airline, has been commissioned to operate the flights.

Air India finds itself in the driver's seat when it comes to operating India's repatriation flights. To date, there is no confirmation India's private airlines will be allowed to join in.

UAE carriers ready to help out

UAE’s Emirates airline, Etihad, flydubai and Air Arabia are likely to also operate repatriation flights to India after Air India implements the first phase of services.

“We are fully supporting governments and authorities across the flydubai network with their repatriation efforts, helping them to make arrangements for their citizens to return home,” said a flydubai spokesperson.

“We will announce repatriation flights as and when they are confirmed, recognising this is an evolving situation whilst the flight restrictions remain in place.”

An AirArabia spokesperson said the airline is ready to operate repatriation flights when the government tells them to.

Travel agencies likely to benefit

Apart from operating non-scheduled commercial flights, the Indian government is also deploying naval ships to bring expat Indians back. Sources claim the ships are to ferry passengers who cannot afford the repatriation airfares.

Even then, considering the sheer numbers who will want to get on the flights, travel agencies are likely to see a surge in bookings since airline websites alone may not cope with the demand set off in such a short span.

Learn from Gulf governments

In instances when they carried out their own repatriation flights, some GCC governments paid the ticket fares to fly in their citizens. Those citizens who did not have the ready funds could approach their diplomatic mission and aid would be given on a case-to-case basis.

Should Indians wait for normal services to resume?

Industry sources say that those Indians wanting to fly back and cannot afford the repatriation flights should wait for full services to resume once the COVID-19 pandemic settles.

But can those who lost their jobs or seen steep salary cuts stay on without adding to their costs? And is there any guarantee that when flight services resume, ticket rates would be lower than on the repatriation trips.

As such, normal travel is expected to pick up only after the repatriation exercise to several countries is completed. UAE-based travel agencies are not seeing any bookings for summer, which is traditionally the peak holiday season.

“Majority want to stay put unless full confidence is restored,” said Abdulnazar. “I expect full normalcy to be restored not until March 2021.

“People have also taken a hit to their income. Without disposable income, you will curtail your travel.”

What constitutes normalcy?

Airfares are expected to remain high, given the need to keep the middle seats empty to practise safe distance onboard.

“We expect holiday travel to resume by October or November - but, the travel sentiment will not go back to pre-COVID-19 levels anytime soon,” said Manvendra Roy, Vice-President – Commercial at holidayme, an online travel agency. “The need to keep the middle seat vacant will add 30-40 per cent pricing pressure per seat from an airline perspective.

“This will make holidays more expensive.”

As for business travel, it will take some time to recover. Corporate staff are now used to getting work done via conference calls. “Companies will also curtail their travel expenditure since their income has taken a hit,” said Abdulnazar.

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News Network
June 12,2020

An Indian national was killed and four others injured in alleged firing by Nepal police personnel along the India-Nepal border in Bihar's Sitamarhi district today.

Sources said the firing took place after a clash between the Indians and personnel of Nepal police at the Lalbandi-Janki Nagar border in Pipra Parsain panchayat under Sonebarsha police station of the district.

Jitendra Kumar, the additional director general of police (headquarters), confirmed the death and injuries. The place of firing falls under Nepal jurisdiction.

Locals said Vikesh Kumar Rai, 25, died on the spot and Umesh Ram and Uday Thakur received bullet injuries when they were working in an agricultural field. Another person, Lagan Rai, is said to have been detained by the Nepali police.

Injured persons were rushed to Sitamarhi Sadar Hospital for better treatment.

Vikesh Kumar Rai’s father, Nageshwar Rai, said that his agriculture land falls under Narayanpur in Nepal where his son was working.

On May 17, Nepal police had fired blank rounds to disperse dozens of Indians trying to cross the border. It was not clear if they were also farmers.

The district magistrate and the superintendent of police of Sitamarhi have rushed to the spot.

Nepal shares a 1,850-kilometre (1,150-mile) open border with India and people travel across it for work and to visit family. It had closed its international borders on March 22 amid the coronavirus pandemic.

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News Network
June 23,2020

Jun 23: US President Donald Trump has issued a proclamation to suspend issuing of H-1B visas, which is popular among Indian IT professionals, along with other foreign work visas for the rest of the year.

Trump said the step was essential to help millions of Americans who have lost their jobs due to the current economic crisis.

Issuing the proclamation ahead of the November presidential elections, Trump has ignored the mounting opposition to the order by various business organisations, lawmakers and human rights bodies.

The proclamation that comes into effect on June 24, is expected to impact a large number of Indian IT professionals and several American and Indian companies who were issued H-1B visas by the US government for the fiscal year 2021 beginning October 1.

They would now have to wait at least till the end of the current year before approaching the US diplomatic missions to get stamping. It would also impact a large number of Indian IT professionals who are seeking renewal of their H-1B visas.

“In the administration of our Nation's immigration system, we must remain mindful of the impact of foreign workers on the United States labour market, particularly in the current extraordinary environment of high domestic unemployment and depressed demand for labour,” said the proclamation issued by Trump.

In his proclamation, Trump said that the overall unemployment rate in the United States nearly quadrupled between February and May of 2020 -- producing some of the most extreme unemployment rates ever recorded by the Bureau of Labor Statistics.

While the May rate of 13.3 percent reflects a marked decline from April, millions of Americans remain out of work.

The proclamation also extends till the end of the year his previous executive order that had banned issuing of new green cards of lawful permanent residency.

Green card holders, once admitted pursuant to immigrant visas, are granted "open-market" employment authorisation documents, allowing them immediate eligibility to compete for almost any job, in any sector of the economy, he said.

“American workers compete against foreign nationals for jobs in every sector of our economy, including against millions of aliens who enter the United States to perform temporary work. Temporary workers are often accompanied by their spouses and children, many of whom also compete against American workers,” Trump said.

“Under ordinary circumstances, properly administered temporary worker programmes can provide benefits to the economy. But under the extraordinary circumstances of the economic contraction resulting from the COVID-19 outbreak, certain non-immigrant visa programmes authorising such employment pose an unusual threat to the employment of American workers,” he said.

For example, Trump said, between February and April of 2020, more than 17 million United States jobs were lost in industries in which employers are seeking to fill worker positions tied to H-2B nonimmigrant visas.

“During this same period, more than 20 million United States workers lost their jobs in key industries where employers are currently requesting H-1B and L workers to fill positions,” he said.

“Also, the May unemployment rate for young Americans, who compete with certain J non-immigrant visa applicants, has been particularly high -- 29.9 percent for 16-19-year-olds, and 23.2 percent for the 20-24-year-old group,” he said.

“The entry of additional workers through the H-1B, H-2B, J, and L non-immigrant visa programmes, therefore, presents a significant threat to employment opportunities for Americans affected by the extraordinary economic disruptions caused by the COVID-19 outbreak,” Trump said.

Trump observed that excess labour supply is particularly harmful to workers at the margin between employment and unemployment -- those who are typically "last in" during an economic expansion and "first out" during an economic contraction.

In recent years, these workers have been disproportionately represented by historically disadvantaged groups, including African Americans and other minorities, those without a college degree, and Americans with disabilities, he said.

The proclamation suspends and limits entry into the US of H-1B, H-2B and L visas and their dependents till December 31, 2020. It also includes certain categories of J visas like an intern, trainee, teacher, camp counselor, or summer work travel programme.

The new rule would apply only to those who are outside the US, do not have a valid non-immigrant visa and an official travel document other than a visa to enter the country.

According to the proclamation, it does not have an impact on lawful permanent residents of the United States and foreign nationals who are spouses or child of an American citizen.

Foreign nationals seeking to enter the US to provide temporary labour or services essential to the food supply chain are also exempted from the latest proclamation.

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