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
July 16,2020

Mumbai, Jul 16: Poet-activist Varavara Rao has tested positive for Covid-19. The 80-year old, named as accused in the Elgar Parishad case, was shifted to state-run JJ Hospital from Taloja central jail where he was lodged after he complained of dizziness. The hospital conducted tests including one for Covid-19 the results for which confirmed that he is positive.

Dr Ranjit Mankeshwar, the dean of JJ Hospital said, “He has shown no symptoms of Covid-19 so far. He has no breathing difficulty and is stable. We will soon shift him to a Covid hospital.” Rao is likely to be shifted to St George hospital.

Last week, Rao’s family had held a press conference after receiving a call from him from prison. His family had then said that his condition was deteriorating and he should be provided immediate medical aid. He was earlier shifted to the hospital when he fell unconscious in jail in May but was discharged within three days. The family had said that he was not provided proper medical treatment.

Last month, a special court had rejected his interim bail plea where he had cited his susceptibility to the virus due to his age and other medical conditions. The court, however, had said the superintendent of prison has been directed to take appropriate measures in such cases where medical attention is required. Before he was shifted to the hospital on Tuesday, Rao was admitted to the hospital ward of the jail and as he had been unable to do basic chores without depending on other inmates.

An appeal against the special court’s order is pending before the Bombay High Court. The plea is likely to be heard tomorrow.

Comments

Naresh
 - 
Thursday, 16 Jul 2020

Real criminals got bail or they r free from jail becoz of corona. Varavara rao and other innocents under custody.

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News Network
January 3,2020

New Delhi, Jan 3: US aviation regulator Federal Aviation Administration on Thursday warned America's airlines and their pilots that there is risk involved in operating flights in Pakistan airspace due to "extremist or militant activity", according to an official document.

"Exercise caution during flight operations. There is a risk to US civil aviation operating in the territory and airspace of Pakistan due to extremist/militant activity," said the US Federal Aviation Administration (FAA) in a notice to airmen (NOTAM) dated December 30, 2019.

The NOTAM is applicable to all US-based airlines and US-based pilots.

The US regulator said in its NOTAM that there continues to be a risk to US civil aviation sector from attacks against airports and aircraft in Pakistan, particularly for aircraft on the ground and aircraft operating at low altitudes, including during the arrival and departure phases of flights.

"The ongoing presence of extremist/militant elements operating in Pakistan poses a continued risk to US civil aviation from small-arms fire, complex attacks against airports, indirect weapons fire, and anti-aircraft fire, any of which could occur with little or no warning," it said.

The FAA said that while, to date, there have been no reports of man-portable air defense systems or Manpads being used against the civil aviation sector in Pakistan, some extremist or terrorist groups operating there are suspected of having access to these Manpads.

"As a result, there is potential risk for extremists/militants to target civil aviation in Pakistan with Manpads," it said.

The regulator added that pilots or airlines must report safety or security incidents - which may happen in Pakistan - to the FAA.

Pakistan on July 16 last year opened its airspace for India after about five months of restrictions imposed in the wake of a standoff with New Delhi.

Following the Balakot airstrikes by the Indian Air Force, Pakistan had closed its airspace on February 26 last year.

Pakistan in October last year had denied India's request to allow Prime Minister Narendra Modi's VVIP flight to use its airspace for his visit to Saudi Arabia over the Jammu and Kashmir issue.

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News Network
February 28,2020

Riyadh, Feb 28: Saudi Arabia on Thursday (Feb 27) suspended visas for visits to Islam's holiest sites for the "umrah" pilgrimage, an unprecedented move triggered by coronavirus fears that raises questions over the annual hajj.

The kingdom, which hosts millions of pilgrims every year in the cities of Mecca and Medina, also suspended visas for tourists from countries with reported infections as fears of a pandemic deepen.

Saudi Arabia, which so far has reported no cases of the virus but has expressed alarm over its spread in neighbouring countries, said the suspensions were temporary. It provided no timeframe for when they will be lifted.

"The kingdom's government has decided to take the following precautions: suspending entry to the kingdom for the purpose of umrah and visit to the Prophet's mosque temporarily," the foreign ministry said in a statement.

"Suspending entry into the kingdom with tourist visas for those coming from countries, in which the spread of the new coronavirus (COVID-19) is a danger."

The move comes as Gulf countries implement a raft of measures, including flight suspensions and school closures, to curb the spread of the disease from people returning from pilgrimages to Iran.

Even as the number of fresh coronavirus cases declines at the epicentre of the disease in China, there has been a sudden increase across the Middle East.

Since its outbreak, the United Arab Emirates has reported 13 coronavirus cases, Kuwait has recorded 43, Bahrain has 33 and Oman is at four cases.

Iran has emerged as a major hotspot in the region, with 19 fatalities from 139 infections - the highest death toll outside China, where COVID-19 originated.

While no cases have been reported in Saudi Arabia, one citizen is reported to be infected in Kuwait along with four Saudi women in Bahrain - all of whom had returned from Iran.

'UNPRECEDENTED' MOVE

The umrah, which refers to the Islamic pilgrimage to Mecca that can be undertaken at any time of year, attracts millions of devout Muslims from all over the globe each year.

There was no clarity over how the move would affect the annual hajj pilgrimage due to start in late July.

Some 2.5 million faithful travelled to Saudi Arabia from across the world to take part in last year's hajj - one of the five pillars of Islam.

The event is a key rite of passage for Muslims and a massive logistical challenge for Saudi authorities, with colossal crowds cramming into relatively small holy sites.

"This move by Saudi Arabia is unprecedented," Ghanem Nuseibeh, founder of London-based risk consultancy Cornerstone Global Associates, told news agency.

"The concern for Saudi authorities would be Ramadan, which starts at the end of April, and hajj afterwards, should the coronavirus become a pandemic."

The holy fasting month of Ramadan is considered a favourable period by Muslim pilgrims to perform the umrah.

Saudi Arabia's custodianship of Mecca and Medina - Islam's two holiest sites - is seen as the kingdom's most powerful source of political legitimacy.

But a series of deadly disasters over the years has prompted criticism of the Sunni kingdom's management of the pilgrimage.

In September 2015, a stampede killed up to 2,300 worshippers - including hundreds of Iranians - in the worst disaster ever to strike the pilgrimage.

The pilgrimage forms a crucial source of revenue for the government, which hopes to welcome 30 million pilgrims annually to the kingdom by 2030.

De facto ruler Crown Prince Mohammed bin Salman's Vision 2030 reform plan seeks to shift the economy of Saudi Arabia - the world's top crude exporter - away from oil dependency towards other sources of revenue, including religious tourism.

Comments

Whether this virus is also created by Allah the powerful? If yes then Muslims need not fear, they should continue to go the Mecca, on the Non-muslims should fear because allah hates them. &

 

And if the Virus not created by Allah, then Who created it?  Is there anyone else other than Allah?

 

You Fool Go-vind...there is no logic in your statement.

will you touch burning fire for 2 min if you are fearless...foolish right

 

GOD is not magic...its logical

 

God never helped any Human beigh with magic to conver to his religion,

he would have done then all will be worshipping him alone..

 

this is test for all human being

 

he created all human beign and he loves every human being but he loves only those who good to another human.

 

screem how ever you want..but muslim population will increase 100%.

please check your health before cursing other.

 

So-called powerfull GOD saved all human beign when they sincierly prayed also you.

 

the more you hate ISLAM the more it become powerful.

 

HINUD is not religion but it is geographical name

RAM is not god but he is king of ayodya same human beign

Phophet Mohammed Pbuh is not GOD but he is messanger of GOD

Veda says na thasya parathima asti- there is no image of GOD but you make some photo and worship.

the biggest sin in front of GOD which will never be forgiven is  worshipping Idol.

God is one not multi...if god is mutli then there is no meaning in justics

 

Love human being automatically God loves you

 

 

Govind
 - 
Friday, 6 Mar 2020

Fools.. Why they fear virus. If somebody ask them, they say we have fear only on Allah. They should go there.. they should be infected and population should decease. Let their so-called powerful god save them

Logical Indian
 - 
Friday, 6 Mar 2020

Muslims fear only Allah and no body else. then why this fear for the virus. They should trust allah fully and allow pilgirms. "Allah o akbar"

Abdul Rahman
 - 
Friday, 28 Feb 2020

Mecca to b spelled Makkah.

Makkah is the correct spelling

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