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
August 7,2020

Kozhikode: An Air India Express flight from Dubai with 190 people on board overshot the Kozhikode tabletop runway on landing there today. The Boeing 737 “fell off” the runway into the valley, broke into two causing death and devastation. 

According to reports, around 20 people were dead including two pilots.

An Air India spokesperson said: “Air India Express flight IX 1344 operated by Boeing 737 aircraft from Dubai to Calicut overshot the runway at Kozhikode at 7.41 pm Friday. No fire reported at the time of landing. There are 174 passengers, 10 infants, two pilots and five cabin crew on board. Rescue operations are on and passengers are being taken to hospital for medical care. We will soon share the update in this regard.”

The Directorate General of Civil Aviation (DGCA) is probing this accident. “Prima facie, the aircraft landed beyond the touchdown point and fell into a valley. It has broken into two. We suspect some casualties. More information is awaited,” said a senior DGCA official.

Taking to twitter, defence minister Rajnath Singh wrote: “Devastating news from Kozhikode, Kerala. I am deeply anguished by the loss of lives due to an accident carrying several passengers on Air India flight. In this hour of grief, my thoughts are with the bereaved families. I pray for the speedy recovery of the injured.”

Foreign minister S Jaishankar tweeted: “Deeply distressed to hear about the Air India Express tragedy at Kozhikode. Prayers are with the bereaved families and those injured. We are ascertaining further details.”

While, senior BJP leader from Kerala K J Alphons tweeted: “Second tragedy of the day in Kerala: Air India Express skids off the run way at Kozhikode, front portion splits , pilot dies and lots of passengers injured . All passengers evacuated. Very lucky the aircraft didn’t catch fire.”

More details are awaited.

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
April 26,2020

Dubai, Apr 26: The Central Bank of the UAE (CBUAE) has instructed financial institutions in the country to search and freeze all bank accounts of Indian billionaire BR Shetty and his family along with those of companies where he has a stake.

The apex bank has also blacklisted several firms associated with Shetty along with their entire senior management.

In an advisory issued last week, CBUAE cited decisions of the Federal Attorney General and asked financial institutions to search and freeze any bank accounts, deposits or investments in the name of Shetty or his family members.

Financial institutions have been directed to stop transfers from these accounts and deny access to deposit boxes.

Currently in India and facing a string of charges, Shetty is the founder of NMC Health.

The heathcare provider was placed into administration by a UK court recently following an application by the Abu Dhabi Commercial Bank (ADCB) which alone has an exposure of $981 million (Dh3.6 billion).

Overall, UAE banks have a combined exposure of more than Dh8bn to NMC which owes money to Oman-based banks and financial institutions as well.

Probing credit facilities
The Central Bank has sought information about credit facilites extended to the Shettys along with details of their safe deposit boxes and the financial transfers they have made till date.

A similar advisory has been issued for NMC Healthcare and NMC Holding, based on the decision of the Head of Plenary Fund Prosecution.

The Central Bank has also blacklisted several companies associated with Shetty. Key staff members of these firms have been similarly blacklisted.

Comments

Angry Indian
 - 
Monday, 27 Apr 2020

when you make money with good country you should not make doka to that country, first of all we indian have bad name in GCC now this will make more dought on indian hindus..

 

after BJP come to power in india,our country is acting like maron, this will only end with final WAR.

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
February 18,2020

Washington, Feb 18: The upcoming visit of President Donald Trump to India later this month has the potential to usher in a new era of bilateral ties between the two countries, a top American business advocacy group has said.

President Trump will pay a state visit to India on February 24 and 25 at the invitation of Prime Minister Narendra Modi. He would be accompanied by First Lady Melania Trump.

This would be the president's first bilateral visit in the third decade of the 21st century and also the first after his acquittal by the Senate in the impeachment trial.

"I believe President Trump's upcoming visit to India has the potential to usher in a new era of our bilateral ties," Mukesh Aghi, President of the US India Strategic and Partnership Forum (USISPF) said in a statement on Monday.

On the sidelines of the visit, the USISPF, in collaboration with the Federation of Indian Chambers of Commerce and Industry (FICCI) and the ORF, has announced to organise a program entitled "US-India Forum: Partners for Growth".

The full-day discussion will focus on the key pillars defining India and the US' strategic, economic, and cultural partnership over the next decade.

"We have an opportunity before us to make real progress on multiple aspects of the relationship— whether it is upholding peace and security in the Indo-Pacific region; building upon an already strong energy partnership; developing co-production and co-development opportunities in the defense space; or strengthening bilateral trade," Aghi said.

"We look forward to an extremely successful visit and some concrete outcomes from the visit," he said.

The day-long programme on February 25 in New Delhi, will bring together over 500 senior business executives, members of the US-India think tank community and leading figures of the Indian diaspora to set the agenda for this strategic partnership.

Discussions during the day will touch upon areas, including the Indo-Pacific Strategy and Maritime Security; the US-India Defence Partnership, the US-India Energy Partnership, Elevating US-India Trade and Investment and Role of the Indian Diaspora in US-India Relations.

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.