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
June 27,2020

New Delhi, Jun 27: Prime Minister Narendra Modi on Saturday said that India fared much better compared to some other countries in the fight against the COVID-19 pandemic. The PM made this observation while delivering the inaugural address to mark the 90th birth anniversary celebrations of Reverend Dr Joseph Mar Thoma Metropolitan.

"Earlier this year, some people had predicted that the impact of the virus in India would be very severe. Due to lockdown, many initiatives have been taken by the Government and in this people-driven fight, India is much better placed than many other nations. India's recovery rate is rising," Modi said in his virtual address.

He further warned that the time was not apt to "let our guard down".

The prime minister greeted the Mar Thoma Metropolitan and wished him a "long life and best health."

"Dr Joseph Mar Thoma has devoted his life for the betterment of our society and nation. He has been particularly passionate about the removal of poverty and women empowerment," the prime minister said.

Praising the Mar Thoma Church for its contributions to the country the Prime Minister added that it has worked to bring a positive difference in the lives of people in the country in areas of healthcare and education.

"The Mar Thoma Church is closely linked with the noble ideals of Saint Thomas, the Apostle of Lord Christ. India has always been open to spiritual influences from many sources. It is with this spirit of humility that the Mar Thoma Church has worked to bring a positive difference in the lives of our fellow Indians," Modi said.

Followers of the Mar Thoma Church from India and abroad participated in the programme through video conference.

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News Network
May 10,2020

New Delhi, May 10: The Delhi government has asked district magistrates to release 2,446 Tablighi Jamaat members from quarantine centres and ensure that they do not stay in any other place except their homes.

The district magistrates will explore the possibility of sending those Tablighi members, who belong to other states, in buses to their designated places in accordance with social distancing norms and other protocols, DDMA Special CEO K S Meena said in a letter to deputy commissioners (administration).

As man as 567 foreign attendees of the congregation held in Delhi's Nizamuddin area in March, will be handed over to the police, Meena said.

"They (foreign Jamaat attendees) will be handed over to police in connection with several violations like visa violation," a government official said on Saturday.

Delhi Home Minister Satyendar Jain had recently ordered the release of Tablighi members who have completed their required quarantine period in centres and tested negative for COVID-19.

"Out of such people belonging to Delhi, who could be released as per prescribed guidelines should be issued passes to travel from the quarantine centres.

"Under no circumstances, the aforesaid persons should be allowed to stay in any other places including mosques," Meena said in the letter.

In respect of those Tablighi members belonging to other states, it should be ensured by the nodal officer and the area ACP that such people reach their place of residence, he also said.

"The DC should also inform the respective resident commissioner of their states in respect of each and every movement of such persons from Delhi," the Delhi Disaster Management Authority (DDMA) Special CEO said.

Thousands of Tablighi Jamaat members had been taken out of its Markaz (centre) in Nizamuddin, where they had gathered for a religious congregation, and quarantined as the area became a major hotspot after a number of members tested positive for coronavirus.

On March 31, the Delhi Police's Crime Branch had lodged an FIR against seven people, including Maulana Saad Kandhalvi, on a complaint by Station House Officer, Nizamuddin, for holding the congregation.

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Agencies
February 26,2020

New Delhi, Feb 26: The death toll in northeast Delhi communal violence over the amended citizenship law rose to 20 on Wednesday, according to GTB Hospital authorities.

On Tuesday, the death toll was 13.

"The death toll has risen to 20 today," Medical Superintendent of GTB Hospital, Sunil Kumar, told PTI.

Earlier, at least four bodies were brought to the Guru Teg Bahadur Hospital from the Lok Nayak Jai Prakash Narayan Hospital, a senior official said.

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