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 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 16,2024

Mangaluru: The Kavoor police in Mangaluru, Karnataka, have arrested three individuals from Kerala in connection with two separate cybercrime cases, including one involving extortion under the guise of a "digital arrest."

City Commissioner of Police Anupam Agrawal reported that one of the arrested individuals, Nisar, a resident of Ernakulam district, posed as a CBI officer. He allegedly threatened the complainant with arrest and extorted Rs 68 lakh. A case has been filed under sections 66 (C) and 66 (D) of the IT Act, and sections 308 (2) and 381 (4) of BNS.

In another case, the Kavoor police arrested two men, Sahil K P of Thiruvannur, Kozhikode, and Muhammad Nashath of Mappila Koyilandy, Kerala, in connection with a share trade fraud. The accused are alleged to have deceived the complainant by promising substantial profits from an investment in the stock market. Trusting the fraudsters, the complainant invested Rs 90 lakh, which was subsequently lost. A case has been registered under sections 66 (C) and 66 (D) of the IT Act, and sections 318 (4) and 3 (5) of BNS.

The accused were arrested in Koyilandi and presented before the court. The operation was carried out under the guidance of City Police Commissioner Anupam Agrawal, led by Mangaluru North Sub-Division ACP Srikanth K, Kavoor Inspector Raghavendra Byndoor, Kavoor PSI Mallikarjuna Biradara, and staff members Ramanna Shetty, Bhuvaneshwari, Rajappa Kashibai, Praveen N, and Malatesh. 

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News Network
November 11,2024

udupistatue.jpg

Udupi, Nov 11: The Karkala town police in Udupi have arrested Krishna Naik, the sculptor responsible for installing a 33-foot Parashurama statue at Umikkal Hill in Bailur, Karkala taluk. 

Naik, the owner of Krish Art World and a resident of Bengaluru's Visvesvaraya Layout, was apprehended in Mahe, part of the Union Territory of Puducherry, for allegedly substituting a look-alike statue in place of a genuine bronze figure at the Parashurama Theme Park in Karkala.

Udupi Superintendent of Police Dr. Arun K confirmed the arrest, stating that Naik faces charges under Sections 420 (cheating) and 409 (criminal breach of trust) of the Indian Penal Code. 

This legal action followed a complaint lodged in June by Krishna Shetty, a resident of Nallur village, Karkala. Shetty claimed that Naik had received a payment of ₹1,25,50,000 from Udupi Nirmithi Kendra for the installation of a bronze Parashurama statue. However, Naik allegedly deceived the government by installing a replica instead.

The statue was unveiled on January 27, 2023, by then Chief Minister Basavaraj Bommai. Current Chief Minister Siddaramaiah has since ordered a CID investigation to probe deeper into the alleged fraud surrounding the statue's installation at the theme park.

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