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.

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 17,2024

Mangaluru: District-in-Charge Minister and Minister for Health and Family Welfare, Dinesh Gundu Rao, announced that a day-care chemotherapy centre will soon be established at District Wenlock Hospital. Speaking to mediapersons after reviewing the activities at Wenlock and Government Lady Goschen Hospital, he shared the government’s plans to enhance healthcare services in the region.

Key Initiatives Announced

•    Day-Care Chemotherapy Centre:

  • Ten beds will be reserved for cancer patients.
  • The government will collaborate with Yenepoya Hospital to provide chemotherapy treatments.
  • All required facilities for the centre are already in place, awaiting inauguration by the Chief Minister.

•    Wenlock Hospital Facelift:

  • Critical Care Block: To be built at a cost of ₹24 crore.
  • Integrated Public Health (IPH) Lab: Planned with a budget of ₹1 crore.
  • New OPD Block: As per a 2017 agreement, KMC Hospital will take up construction. Discussions with KMC management are underway.

•    Additional Requirements:

  • A new mortuary and post-mortem building.
  • Paramedical college building.
  • Modern kitchen.
  • Bridge connecting two buildings within the hospital.

•    Total facelift cost: ₹6 crore to ₹10 crore, utilizing funds from the Department of Health and Family Welfare and CSR contributions.

•    Timeline:
By December or January, priority works will be finalized. The superintendents of Wenlock and Lady Goschen Hospitals are scheduled to visit Bengaluru next week to discuss these projects.

•    MRI Fee Allegations:
The minister assured that allegations of patients being charged for MRI scans at Wenlock Hospital will be resolved at the earliest.
These measures aim to improve healthcare accessibility and infrastructure, positioning Wenlock Hospital as a state-of-the-art facility in the region.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
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.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 15,2024

iranarmy.jpg

Iran’s Islamic Revolution Guards Corps (IRGC) has killed or captured 69 terrorists linked to the Israeli spy agency Mossad during a major counterterrorism drill in the country's southeast, its spokesman says.  

General Ahmad Shafaei, the spokesman for the “Martyrs of Security” drill, said Friday that a total of 23 terrorists have been killed and another 46 arrested in various clean-up operations ever since the IRGC Ground Force launched it in the Sistan and Baluchestan province on November 1.

Seven terrorists have also turned themselves in during the period.

“The undeniable fact about terrorists is that they rely on arrogant powers, particularly the intelligence service of the wicked and vicious Zionist regime," Shafaei said.

“Unfortunately, weapons and munitions at terrorists’ disposal are among the most sophisticated ones in the world. This accounts for their heavy dependence.” 

The official stated that several members of the disbanded terror teams were non-Iranian nationals, who had been hired by foreign intelligence agencies to carry out acts of sabotage and terror inside Iran.

In a most recent operation, six terrorists were arrested and four others were eliminated, three of whom were non-Iranians, he added. 

On October 26, ten members of Iran's law enforcement forces were killed in a terrorist attack in the Gohar Kuh district of Taftan in the Sistan and Baluchestan province.

The so-called Jaish al-Adl terrorist group claimed responsibility for the assault, which was one of the deadliest in the province in recent months.

The group has carried out numerous terrorist attacks in Iran, primarily in Sistan and Baluchestan.

Its tactics include the abduction of border guards as well as targeting civilians and police stations within the province to incite chaos and disorder.

In January, Iran launched a military operation during which the headquarters of the Pakistan-based terrorist group was targeted in missile strikes, destroying its infrastructure.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.