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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
March 2,2020

Mathura, Mar 2: Union Minister of state Sadhvi Niranjan Jyoti on Sunday said after the Citizenship (Amendment) Act (CAA), the Centre might bring a population control law.

Jyoti claimed that she has already spoken to Prime Minister Narendra Modi in this regard.

She said she believes that this issue is under the prime minister's consideration and he himself has discussed the importance of bringing this law.

Jyoti arrived here on Sunday to attend a tribute meeting held at Swami Vamdev Jyotirmath in Chaitanya Vihar. Unnao MP Sakshi Maharaj was also present at the event.

"There was a time when abrogation of Article 370 in Jammu and Kashmir was impossible. It was feared that if such thing happens, there will be bloodbath. No one will be hold the national flag in Kashmir. But this government can bring any law in favour of the nation," Jyoti said.

"Now, everyone believes that if Article 370 can be removed...Prime Minister Narendra Modi can bring any law which is important for the country," she added.

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expat
 - 
Monday, 2 Mar 2020

already people are childless. struggling for IVF treatment. no need of population control. it is automatically getting control byu nature.

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Agencies
July 29,2020

If everything goes as Russia’s expectation, it will be world’s first country to approve a coronavirus vaccine for widespread in the second week of August despite safety and efficacy concerns, according to a report. The adenoviral vector-based vaccine developed by Russian military and government researchers is currently in phase 2 trials.

According to a report from CNN, Russian officials are hoping to get approval for the COVID-19 vaccine developed by the Moscow-based Gamaleya Institute on Agust 10 or even before that. The officials told the outlet that the vaccine will be approved for public use with frontline healthcare workers receiving it first.

“It’s a Sputnik moment,” said Kirill Dmitriev, head of Russia’s sovereign wealth fund, which is financing Russian vaccine research, referring to the successful 1957 launch of the world’s first satellite by the Soviet Union, according to CNN.

“Americans were surprised when they heard Sputnik’s beeping. It’s the same with this vaccine. Russia will have got there first,” he was quoted as saying.

However, Russia is yet to release the scientific data on its coronavirus vaccine trials, hence, questions remain about the safety and efficacy of the vaccine, said the report. The vaccine is in the second phase of testing with developers planning to launch the phase 3 trials sometime after August 3.

Earlier, Interfax reported, citing Health Minister Mikhail Murashko, that the vaccine will be widely used in parallel with phase 3 trials. He said the country plans to vaccinate medics who are at high-risk for COVID-19 next month before clinical trials are completed.

Murashko added that individuals at higher risk of getting infected with the coronavirus such as older people or those with health conditions will also be prioritised for the vaccine, although he did not estimate or reveal when that would happen. The minister added 800 people will be recruited for the phase 3 trials.

Meanwhile, health officials were more cautious considering the fact that human testing of the vaccine is incomplete, and the state registration is expected to begin after August 3, reported The Moscow Times.

On Monday, Moderna and Pfizer announced the commencement of the final phase 3 trials of their candidate vaccines against the SARS-CoV-2 virus, which has so far claimed at least 654,477 lives and infected 16,514,500 people worldwide. 

Researchers will recruit up to 30,000 volunteers in separate trials both backed by the US government. India's first indigenous coronavirus vaccine, COVAXIN, is undergoing phase 1 human clinical trials across the country. More than 150 COVID-19 vaccines are being developed all over the world with at least six candidates already in late-stage clinical trials.

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News Network
March 18,2020

Washington, Mar 18: Hundreds of distressed Indian students, stuck in the Philippines, are seeking help through video messages as they are unable to fly back home due to the travel restrictions imposed by India to contain the spread of the deadly novel coronavirus, according to friends and relatives of some of these students in the US.

The Indian government on Tuesday banned the entry of passengers from Afghanistan, Philippines and Malaysia to India with immediate effect amid stepped up efforts against the spread of COVID-19.

In a video message by one of these students Akhil Bala Nair, around 200 Indian students had booked their flight tickets for India in the next few days. But all of them have been cancelled due to the new policy.

Most of the students, she said, had booked their flights for March 17 and rest were schedule to travel to India on March 19 and 20. But the flights were cancelled and scores of Indian students are now stuck at the airport in Manila, Nair said in the video message sent to Prem Bhandari, head of the Jaipur Foot USA.

“It is need of the hour that the Indian government send a plane to bring these Indian students back home,” Bhandari, who in the past has worked for the cause of the Indian diaspora, and who was approached by these students told PTI.

According to these students, some 100 of them have been at the airport since Tuesday.

They all have confirmed tickets but the airport authorities are not allowing them to check in because of the new travel regulations.

While the airport authorities have asked them to go back to their respective place of residence, the students said they were unable to travel because of the absence of local taxi or shared ride services.

The students said that they are running out of time as the Philippines government has given them 72 hours time to exit the country, which started from March 16, after which the country will go into lockdown.

“This means we would not be able to travel anywhere outside Philippines after March 20,” Nair said in her message.

The students said that there are many of them who have applied for renewal of their visas and are unable to travel to India.

There are nearly 1,000 Indian students presently in Manila who are willing to travel back home, they said.

Meanwhile, the Indian Embassy in Manila, in a tweet, said that they, along with the Ministry of External Affairs, are trying to work out a solution.

“It is requested to all to kindly have patience,” the embassy said.

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