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
November 12,2024

HDKzameer.jpg

Mysuru, Nov 12: Zameer Ahmad Khan, the Tourism and Waqf minister of Karnataka, who stirred a controversy by addressing the Union Minister HD Kumaraswamy as ‘Kaala Kumaraswamy’ has tendered apologies for his remarks.

Speaking to reporters in Mysuru on Tuesday, Minister Zameer stated that he will apologise if remarks have hurt JD-S workers.

“We both are very close. Then, in a total of 24 hours, we were together for 14 hours. He used to fondly address me as “kulla” (shorty) and I used to address him as “kariyanna” (blacky, kaalia),” Minister Zameer stated.

“I am not addressing him as ‘kaalia’ for the first time. I have not said something highly derogatory. It is being made as big in the backdrop of elections. With love, he used to call me a shorty and I called him a blacky. If I had caused pain to anyone by my words I apologise,” he said.

He further stated: “Kumaraswamy had said that he didn’t want the votes of the Muslim community. But now they are attempting to purchase Muslim votes. Against this backdrop, I have made the remark.”

Minister for Home G. Parameshwara stated on Tuesday, “Minister Zameer and Kumaraswamy are close friends. Their comments against each other are not significant.”

Zameer Ahmad Khan, the Tourism and Waqf minister of Karnataka stirred a controversy on Monday as he addressed the Union Minister as ‘Kaala Kumaraswamy’.

JD-S on Tuesday demanded a public apology and resignation of Minister for Waqf and Tourism Zameer Ahmad Khan over his ‘racist’ remarks.

“Remember, there is no place here for your divisive policies. You have insulted the people by making ethnic, racist and discriminatory statements. You should apologize to the people of the state and resign,” the JD (S) demanded in the post.

Union Parliamentary Affairs and Minister for Minority Affairs Kiren Rijiju reacted sternly to the racist jibe and stated, “I strongly deplore Congress Minister Zameer Ahmed calling Union Minister and former Chief Minister of Karnataka Kumaraswamy as 'Kaalia Kumaraswamy'.

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News Network
November 10,2024

Bengaluru: The Karnataka government has warned that disciplinary action will be taken against those officials who change the land mutation records and serve eviction notices to farmers under the Waqf Act.

In a letter, the Revenue Department Principal Secretary Rajender Kumar Kataria reminded all regional commissioners and deputy commissioners in the districts that Chief Minister Siddaramaiah recently had a meeting following complaints about certain land properties being made in favour of the Karnataka Board of Waqfs.

In the meeting it was decided that all the directions issued previously by any government office or authority to change the mutation records has been withdrawn, the letter said.

It added that all the notices served in the past have also been withdrawn and no action should be taken against the farmers who are cultivating on the said land.

On the directions of the chief minister, the previous letters and the latest reminders served on November 7 to the farmers and land owners have been withdraw, the letter said.

"The officials who served reminder-2 despite the chief minister's direction will face appropriate disciplinary action," Kataria said in his letter.

He said he has been instructed to strictly implement the chief minister's direction.

The fresh direction was issued in poll-bound Karnataka, where bypolls to three crucial assembly segments are due on November 13.

Some farmers in Honwad village in Vijayapura in north Karnataka had alleged last month that they were served eviction notices as the Waqf Board claimed rights over it.

Subsequently, complaints started in pouring in from some other parts of the state.

BJP leader Tejasvi Surya on October 25 alleged that Karnataka Waqf Minister B Z Zameer Ahmed Khan directed the deputy commissioners and revenue officials to register lands in favour of the Waqf Board within 15 days, which resulted in confusion.

On Surya's request, the Chairman of the Joint Committee of Parliament on the Waqf (Amendment) Bill, Jagdambika Pal visited Karnataka on November 7 and met farmers in Hubballi, Vijayapura and Belagavi districts who had alleged that their lands were marked as Waqf properties.

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News Network
November 22,2024

Mangaluru: A man fell victim to an online scam, losing Rs 1.7 crore after fraudsters posed as officials from TRAI. According to a complaint filed at the CEN police station, the incident began on November 11, when the complainant received a call from an unknown number at 9:49 am.

The caller, claiming to represent TRAI, alleged that another mobile number registered under the complainant's name was involved in illegal activities in Andheri (East), Mumbai. The caller further stated that an FIR was lodged against the complainant for harassment under the guise of marketing. He was instructed to contact Andheri (East) police station immediately or risk his mobile service being deactivated within two hours.

The complainant was subsequently connected to an individual named Pradeep Sawant, who claimed the complainant was implicated in a money laundering scheme linked to the Naresh Goyal fraud case. Sawant alleged that a fraudulent bank account under the complainant's name was opened at Canara Bank, Andheri, and used to purchase a SIM card for illegal activities. He warned that the complainant could face arrest.

Later, the complainant was contacted via WhatsApp video call by individuals posing as Rahul Kumar (a police officer) and Akanksha (a CBI officer). They allegedly sent fabricated CBI documents to his WhatsApp number. The fraudsters demanded money to "resolve" the case. Fearing threats, the complainant allegedly transferred Rs 1.7 crore through RTGS in batches of Rs 53 lakh, Rs 74 lakh, and Rs 44 lakh between November 13 and 19. A case has been registered at the CEN police station and an investigation is ongoing.

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