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.

Comments

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
February 2,2020

Mount Maunganui, Feb 2: India registered a rare 5-0 whitewash against New Zealand after notching up a seven-run win in the fifth and final T20 International at Bay Oval here on Sunday.

Electing to bat, India posted 163 for three, riding on Rohit Sharma's 60 off 41 balls and a 33-ball 45 from K L Rahul.

The visitors then restricted the hosts to 156 for nine with Jasprit Bumrah claiming three wickets for 12 runs.

Chasing the target, the Black Caps were tottering at 17 for three in 3.2 overs.

Tim Seifert (50) and Ross Taylor (53) then added 99 runs for the fourth wicket as New Zealand recovered to 116.

Seifert clobbered a 30-ball 50 studded with five fours and three sixes, while Ross Taylor hit two sixes and five fours in his 47-ball 53-run innings.

However, once Seifert was dismissed in the 13th over, the hosts suffered a collapse, losing five wickets, including Taylor, for 25 runs to loss the plot in the end.

Brief Score:

India: 163 for 3 in 20 overs (Rohit Sharma 60; S Kuggeleijn 2/25)    

New Zealand: 156 for 9 in 20 overs (Ross Taylor 53, Tim Seifert 50; Jasprit Bumrah 3/12).

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News Network
April 26,2020

Dubai, Apr 26: Families were shattered as the three dead bodies of UAE-based Indian expats were returned to the country from New Delhi, India.

Family members waited outside the Indira Gandhi International Airport for hours, but they were later told to go back home as the remains of expats Jagsir Singh, Sanjeev Kumar and Kamlesh Bhatt were flown back to Abu Dhabi, following a new order implemented by India's Ministry of Home Affairs.

Inderjeet, brother-in-law of Sanjeev based in Al Ain, said their family in Punjab was devastated.

"This is a non-coronavirus death. We had a death certificate as proof and all necessary documents from Indian Embassy. But the body was returned while our family members waited outside the airport. This is very shocking," Inderjeet said.

"The body shouldn't have been returned. It's difficult to travel across states due to Covid-19 restrictions and also to arrange the ambulance," he added.

"Now the embassy has told me to come on Sunday. They said hopefully things will be sorted out in a day or two."

Meanwhile, the family of Kamlesh resides in the Indian state of Uttarakhand. This means, with existing travel restrictions, they had to secure permits from different states to reach New Delhi.

Dubai-based social worker Girish Pant, who is in touch with the family, said they are all depressed with the unfortunate turn of events.

"His brother Vimlesh had to return home without the remains. They are all clueless and in pain. With the new order from the Ministry of Home Affairs, I have informed the family that the body will reach them within 48 hours. I am also coordinating with the Indian Embassy," Pant said.

Comments

Ahmed A.K.
 - 
Monday, 27 Apr 2020

Now support BJP

 

Indian origins dont have place to cremate in their own land while our HM is planning to give nationality to minorities of other countries.

 

what a joke man!!!

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Agencies
January 4,2020

New Delhi, Jan 4: "Sovereign, socialist, secular, democratic republic" is how India is referred to in the preamble of the Constitution. However, J Nandakumar, a key RSS leader and All India Convenor Prajna Pravah, a Sangh offshoot, wants India to reconsider the inclusion of the word "secular", claiming secularism is a "western, Semitic concept".

In an exclusive interview to news agency, Nandakumar said: "Secularism is a western, Semitic concept. It came into existence in the West. It was actually against Papal dominance."

He argued that India does not need a secular ethos as the nation has moved "way beyond secularism" since it believes in universal acceptance as against the western concept of tolerance.

The RSS functionary on Thursday released a book here named "Hindutva in the changing times". The book launch event was also attended by senior RSS functionary Krishna Gopal.

Nandakumar, who has attacked the Mamata Banerjee government in his book for alleged "Islamisation of West Bengal", told IANS: "We have to see whether we need to put up a board of being secular, or that whether we should prove this through our behaviour, actions and roles."

It is for society to take a call on this, rather than by any political class, on whether the preamble to the Indian Constitution should continue to have the word "secular" in it or not, he added.

In between signing his books and obliging wannabe Hindutva cadres with selfies, Nandakumar said that the very existence of the word "secular" in the preamble was not necessary and how the constitution founders too were against it.

"Baba Saheb Ambedkar, Ladi Krishnaswamy Aiyaar -- all debated against it and said it (secular) wasn't necessary to be included in the preamble. That time it was demanded, discussed and decided not to include it," he said.

Ambedkar's opinion was, however, disregarded when Indira Gandhi "bulldozed" the word "secular", in 1976, said the head of the Prajna Pravah, an umbrella body of several right-wing think-tanks

As Nandakumar prepared to return to his base in Kerala, where, he emphasises, the RSS has its work cut out in the "fight against the Kunnor model", he said that the inclusion of "secular" was done with the intent to damage the concept of Hindutva.

"It was to demolish, destroy the overarching principle of Hindutva that binds us together", he said.

Asked whether the Sangh would pressurise the BJP, which has 303 seats in the Lok Sabha, to omit "secular" from the Constitution preamble, Nandakumar smilingly refused to reply.

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