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
January 29,2020

Jan 29: Multiple organisations have called for a Bharat Bandh today in order to protest against the recently passed Citizenship Amendment Act and the proposed National Register of Citizens (NRC). The Bharat  Bandh today has been organised in Surat in Gujarat, Jharkhand and Andhra Pradesh. Increased security measures have been put in place in the three states keeping in view the call for shutdown.

According to media reports, the call for Bharat Bandh was given by Maulana Sajjad Nomani of the All India Muslim Personal Law Board (AIMPLB). This was to protest against the controversial CAA-NRC. This call is supported by an NGO based in Surat, Versatile Minorities Forum (VMF). Apart from the VMF, the call for strikes has been supported by organizations such as Bahujan Kranti Morcha, National Association of Street Vendors of India Surat chapter and the Textile Market Workers' Union.

The workers of the VMF were also spotted distributing pamphlets and urging people to support the strike. Several shopkeepers have also put up notices stating that their shops will be shut for the day.

Earlier, Bharat Bandh was called by 10 trade unions and several bank employees in order to protest against the "anti-people policies of the government" on January 8 and 9. A few violent incidents during this Bharat Bandh were reported in West Bengal.

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Agencies
June 17,2020

Mumbai, Jun 17: A lawyer on Wednesday moved a criminal complaint against 8 persons, including Bollywood superstar Salman Khan and producer-director Karan Johar, in a local court regarding the death of Bollywood actor Sushant Singh Rajput.

The court had fixed July 3 as the next date of hearing.

In his complaint filed in the court of Chief Judicial Magistrate, advocate Sudhir Kumar Ojha alleged that these eight persons forced Sushant to commit suicide under a conspiracy which, he pleaded, amounted to murder.

Others named in the complaint are Aditya Chopra, Sajid Nadiadwala, Sanjay Leela Bhansali, Bhushan Kumar, Ekta Kapoor, and director Dinesh.

The complainant claimed that these persons did not let Sushant's movies get released under a conspiracy and the late actor was not even invited to film functions because of these people.

Ojha said that Sushant Singh Rajput's death had not only hurt the people of Bihar but the entire country.

He said the complaint had been filed under Sections 306, 109, 504 and 506 and Bollywood actor Kangana Ranawat had been listed as a witness in the case.

Sushant Singh Rajput had allegedly committed suicide at his Bandra flat in Mumbai on Sunday.

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News Network
June 6,2020

New Delhi, Jun 6: Military commanders of India and China are scheduled to meet today at Moldo on the Chinese side of the Line of Actual Control (LAC), to discuss the ongoing dispute along the LAC in Eastern Ladakh.

The Commander of the Leh-based 14 Corps of the Indian Army Commander Lieutenant Gen Harinder Singh will meet his Chinese equivalent Maj Gen Liu Lin, who is the commander of South Xinjiang Military Region of Chinese People's Liberation Army (PLA) to address the ongoing tussle in Eastern Ladakh between the two countries over the heavy military build-up by the People's Liberation Army along the LAC there.

The two sides have held close to a dozen rounds of talks since the first week of May when the Chinese sent over 5,000 troops to the LAC.

On Friday, officials of India and China interacted through video-conferencing with the two sides agreeing that they should handle "their differences through peaceful discussion" while respecting each other's sensitivities and concerns and not allowing them to become disputes in accordance with the guidance provided by the leadership.

In the last few days, there has not been any major movement of the People's Liberation Army troops at the multiple sites where it has stationed itself along the LAC opposite Indian forces.

India and China have been locked in a dispute over the heavy military build-up by the People's Liberation Army (PLA) where they have brought in more than 5,000 troops along with the Eastern Ladakh sector.

The Chinese Army's intent to carry out deeper incursions was checked by the Indian security forces by quick deployment. The Chinese have also brought in heavy vehicles with artillery guns and infantry combat vehicles in their rear positions close to the Indian territory.

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