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
April 30,2024

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Popular Bhojpuri actor Amrita Pandey was found dead in her apartment in Bihar's Bhagalpur last week on April 27, the police said. The cops suspect the actor, 27, died by suicide but the matter is under investigation. 

The police said she posted a cryptic WhatsApp status before her death, which read, "Do naav me savaar thi uski zindagi, humne apni naav duba ke uska safar aasaan kar diya" (His/her life was sailing on two boats, we made the journey easy by sinking one). The cops have not recovered any suicide note. She is survived by her husband.

Amrita's family said she worried about her career as she was not getting enough work and was suffering from depression. The family said she was undergoing treatment for depression. 

The actor lived in Mumbai with her husband, Chandramani Jhangad, an animation engineer. She went to Bhagalpur to attend her sister's wedding on April 18. Her husband returned home after the wedding but Amrita chose to stay back. 

The actor has been alongside Bhojpuri star Khesari Lal Yadav in 'Deewanapan'. She also acted in Hindi movies, TV shows and web series. She is also known for her role in the web series 'Parishodh'.

City Superintendent of Police, Shri Raj, said we will conduct a high-level investigation into this case. A team has been formed, the family members are being interrogated and further action is underway in the case. 

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News Network
May 4,2024

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Canadian Police said they have arrested three Indians they suspect were part of the alleged hit squad that had killed Hardeep Singh Nijjar, a Sikh separatist leader involved with the Khalistan movement, which calls for an independent Sikh state.

Nijjar's killing had become the epicentre of a diplomatic row between India and Canada last year after Prime Minister Justin Trudeau alleged the role of "Indian agents" in the murder. India had rejected the charge as "absurd" and "motivated".

The three arrested Indians - Karan Brar, 22, Kamalpreet Singh, 22, Karanpreet Singh, 28 - were living as non-permanent residents in Alberta for three to five years, said Superintendent Mandeep Mooker, who leads the Integrated Homicide Investigation Team. The police have also released their photos.

They have been charged with first-degree murder and conspiracy to commit murder, showed court documents.

Police said that none of the suspects were known to them earlier and they were investigating their possible ties to the Indian government.

The murder remains "very much under active investigation," Royal Canadian Mounted Police (RCMP) Assistant Commissioner David Teboul told a press conference on Friday.

"There are separate and distinct investigations ongoing into these matters, certainly not limited to the involvement of the people arrested today, and these efforts include investigating connections to the government of India," CTV News quoted him as saying.

Nijjar, a Canadian citizen who was wanted in India on various terror charges, was shot dead outside a gurdwara in Surrey on June 18, 2023. Trudeau's charge against India sparked a massive row later that year with both countries expelling diplomats of the other country.

A fresh row erupted earlier this week after separatist slogans on 'Khalistan' were raised at an event addressed by Trudeau, prompting New Delhi to summon their Deputy High Commissioner and lodge a strong protest.

On the sidelines of the event, Trudeau told reporters that Nijjar's killing had created a "problem" that he could not have ignored.

India rejected his comment and said it once again showed Canada provides political space given to separatism, extremism, and violence. "This not only impacts India-Canada relations but also encourages a climate of violence and criminality in Canada to the detriment of its own citizens," foreign ministry spokesperson Randhir Jaiswal said.

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News Network
April 25,2024

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Kolkata: Defence Minister Rajnath Singh or Transport Minister Nitin Gadkari could have been the prime minister, said Trinamool Congress supremo and West Bengal chief minister Mamata Banerjee, subtly taking a dig at the Bharatiya Janata Party leaders relegated to the second rung of the organisational echelons.

Banerjee’s nephew and the TMC general secretary Abhishek Banerjee, on the other hand, attempted to stoke trouble within the BJP’s unit in West Bengal, saying that at least 10 more state legislators of the saffron party were keen to join his party and in touch with him.

"You (Rajnath Singh) are surviving at the mercy of Modi (Prime Minister Narendra Modi). You are saluting Modi daily to save your chair. You or Nitin Gadkari could have been the PM (prime minister) today," the TMC supremo said in an election rally at Ausgram in Bolpur Lok Sabha constituency on Wednesday. "There would have been no problem...at least there would have been a gentleman in the chair who knows minimum courtesy," she added.

Banerjee was responding to Singh’s diatribe against herself and the TMC government led by her. The defence minister, who had addressed an election rally in Murshidabad on Sunday, had criticised the TMC government for alleged corruption and anarchy in West Bengal.

Singh had referred to the attacks on the Enforcement Directorate officials on January 5 during a raid at the residence of the TMC leader Sheikh Shahjahan at Sandeshkhali in North 24 Parganas district of the state. It was followed by an agitation by local women protesting against atrocities by Shahjahan and his aides known to be owing allegiance to the TMC.

Singh questioned how the state government, led by a woman as the chief minister, could allow such atrocities on women to take place. He went on to say that Banerjee had lost all ‘mamata’ (affection and compassion) for people.

Banerjee shared a cordial relationship with Singh since the days when they both were ministers in the central government led by then Prime Minister Atal Bihari Vajpayee. Singh avoided personally criticising Banerjee in the past.

He, however, went ballistic against Banerjee on Sunday, triggering a strong response from the TMC supremo on Wednesday.

"The BJP is trying to get into the game of breaking parties, but they can't win in it. They poached two of our MPs, and we replied by taking two of their MPs, Arjun Singh and Babul Supriyo. Recently, by using ED raids, they inducted Tapas Ray. At least 10 top leaders of the BJP are in the queue to join the TMC," Abhishek said in another election rally in Murshidabad on Wednesday.

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