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
January 19,2020

Chennai, Jan 19: Amid ongoing nationwide protests against Citizenship (Amendment) Act, 2019, finance minister Nirmala Sitharaman on Sunday said that as many as 2838 people from Pakistan were given citizenship during the last six years.

"In the last six years, as many as 2838 Pakistani refugees, 914 Afghan refugees, 172 Bangladeshi refugees including Muslims have been given Indian citizenship. From 1964 to 2008, more than 4,00,000 Tamils (from Sri Lanka) have been given Indian citizenship," Sitharaman said at 'Programme on Citizenship (Amendment) Act, 2019' event here.

She added, "Till 2014, over 566 Muslims from Pakistan, Bangladesh and Afghanistan were given Indian citizenship. During 2016-18 under Modi government, around 1595 Pakistani migrants and 391 Afghanistani Muslims were given Indian citizenship."

The minister, further, said, "It was also during the same period in 2016, that Adnan Sami was given Indian citizenship, this is an example."    

Sitharaman added that people who came from East Pakistan have been settled at various camps in the country.

"They are still there and it's been 50-60 years now. If you visit these camps, your heart will cry. The situation is the same with Sri Lankan refugees who continue to live in camps. They're barred from getting basic facilities," she said.

Asserting that the government is not snatching away anyone's citizenship, the BJP leader said: "This Citizenship (Amendment) Act is an attempt to provide people with a better life. We are not snatching away anyone's citizenship, we are only providing them that."

"The National Population Register (NPR) will be updated every 10 years and is not involved with the National Register of Citizens (NRC). Some are involved in raising false allegations and triggering people unnecessarily without any base," she added.

Comments

indian
 - 
Monday, 20 Jan 2020

Hello Madam,

What Are you ?? Are you a Finance Minister or External Affairs Minister ??

when someone asked about the economy which well related to your ministry you won't even open your mouth, 

but now you are talking about a matter which is not at all your business...

WellWisher
 - 
Sunday, 19 Jan 2020

What a pefect  figure  given by our short time  finance minister. Hope  she wil feed them from her person income wthout ONION.

Fairman
 - 
Sunday, 19 Jan 2020

Stupid, dont know even what they talk.

 

 

It is not snatching anybody's nationality. You dont have right to do it.

 

 
The subject is not snatching,    the subject is disccimination while giving nationality.

 

 

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News Network
March 6,2020

Riyadh, Mar 6: Saudi Arabia on Thursday emptied Islam's holiest site for sterilisation over fears of the new coronavirus, an unprecedented shutdown state media said will last while the year-round Umrah pilgrimage is suspended.

The kingdom halted the pilgrimage for its own citizens and residents on Wednesday, on top of restrictions announced last week on foreign pilgrims to stop the disease from spreading.

State television relayed images of an empty white-tiled area surrounding the Kaaba -- a large black cube structure inside Mecca's Grand Mosque -- which is usually packed with tens of thousands of pilgrims.

As a "precautionary measure", the area will remain closed as long as the umrah suspension lasts but prayers will be allowed inside the mosque, state-run Saudi Press Agency cited a mosque official as saying.

Additionally, the Grand Mosque and the Prophet's Mosque in the city of Medina will be closed an hour after the evening "Isha" prayer and will reopen an hour before the dawn "Fajr" prayer to allow cleaning and sterilisation, the official added.

A group of cleaners was seen scrubbing and mopping the tiles around the Kaaba, a structure draped in gold-embroidered gold cloth towards which Muslims around the world pray.

A Saudi official told news agency the decision to close the area was "unprecedented".

On Wednesday, Saudi Arabia suspended the umrah for its own citizens and residents over fears of the coronavirus spreading to Islam's holiest cities.

The move came after authorities last week suspended visas for the umrah and barred citizens from the six-nation Gulf Cooperation Council from entering Mecca and Medina.

Saudi Arabia on Thursday declared three new coronavirus cases, bringing the total number of reported infections to five.

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

The decision to suspend the umrah mirrors a precautionary approach across the Gulf to cancel mass gatherings from concerts to sporting events.

It comes ahead of the holy fasting month of Ramadan starting in late April, which is a favoured period for pilgrimage.

It is unclear how the coronavirus will affect the hajj, due to start in late July.

Some 2.5 million faithful travelled to Saudi Arabia from across the world in 2019 to take part in the hajj, which is one of the five pillars of Islam as Muslim obligations are known.

The event is a massive logistical challenge for Saudi authorities, with colossal crowds cramming into relatively small holy sites, making attendees vulnerable to contagion.

Already reeling from slumping oil prices, the kingdom risks losing billions of dollars annually from religious tourism as it tightens access to the sites.

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News Network
July 5,2020

New Delhi, Jul 5: With highest-ever single-day spike of 24,850 COVID-19 cases in 24 hours, India's coronavirus count stood at 6,73,165, informed the Union Ministry of Health and Family Welfare on Sunday.

Out of the total cases, 2,44,814 are active cases. On the other hand, India's cured/discharged patients count crossed the 4 lakh mark with 4,09,082 patients cured/discharged and one patient migrated.

As many as 613 deaths due to coronavirus were reported in the country in the last 24 hours taking the death toll in the country to 19,268.

Meanwhile, the ministry said that collective and focused efforts for containment and management of COVID-19 by the government of India along with the States/UTs have led to the number of recovered cases among COVID-19 patients rise to 4,09,082 as of today.

"During the last 24 hours, a total of 14,856 COVID-19 patients have been cured. So far, there are 1,64,268 more recovered patients than COVID-19 active cases. This takes the national recovery rate amongst COVID-19 patients to 60.77 per cent," the ministry said.

"With 786 labs in government sector and 314 private labs, there are as many as 1,100 labs in India," it added.

As per the Health Ministry, coronavirus cases in Maharashtra -- the worst affected state from the infection -- has breached the 2 lakh mark with 2,00,064 cases including 8,671 deaths.

Tamil Nadu reported 4,150 fresh COVID-19 cases and 60 deaths today, taking total cases to 1,11,151 and death toll to 1,510. Number of active cases stands at 46,860, according to the State Health Department.

Delhi's coronavirus tally nears the 1 lakh mark with 99,444 cases and the number of people succumbing to the virus stands at 3,067 in the national capital. As many as 9,873 RT-PCR tests and 13,263 rapid antigen tests were conducted today in Delhi. Total tests done so far stands at 6,43,504.

Meanwhile, Indian Council of Medical Research informed that the total number of samples tested up to July 4 is 97,89,066 of which 2,48,934 samples were tested yesterday.

There were seven new COVID-19 cases in the last 24 hours in Chandigarh, taking total cases to 466 including 395 recoveries and six deaths.
Himachal Pradesh Health Department informed that COVID-19 cases reach 1,048 in the state, of which, 309 cases are active and 715 have recovered.

Andhra Pradesh has reported 998 new COVID-19 cases and 14 deaths in the last 24 hours, according to a media bulletin released by AP state COVID nodal officer.

A total of 1,155 COVID-19 cases were reported in the last 24 hours in Uttar Pradesh on Sunday, taking the total number of active cases to 8,161 in the state, an official said. According to the official data, a total of 18,761 people have been cured while 785 people have died due to the virus in the state.

Eighteen more personnel of Indo-Tibetan Border Police (ITBP) tested positive for COVID-19 in the last 24 hours. There are total 151 active cases and 270 have recovered till date.

While, in the last 24 hours, 36 more Border Security Force (BSF) personnel tested positive for COVID-19 and 33 have recovered. There are 526 active cases and 817 personnel have recovered till date.

In Rajasthan, 224 fresh COVID-19 positive cases and 6 deaths were reported today. The total number of cases rose to 19,756 including 3,640 active cases and 453 deaths.

Odisha reported 469 new COVID19 positive cases in the last 24 hours, taking the total number of positive cases in the state to 9,070 including 5,934 recovered cases and 3,090 active cases, according to the health department.

Uttarakhand reported 31 new COVID-19 cases in the last 24 hours, taking total cases to 3,124. Recovery rate among COVID-19 patients stands at 80.79 per cent.

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