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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Agencies
January 26,2020

Jaipur, Jan 26: Rajasthan on Saturday on Saturday became the third state in the country to pass a resolution urging the Centre to repeal the Citizenship Amendment Act (CAA).

he resolution was passed in the state Assembly amid opposition by the BJP which accused the ruling Congress of pursuing appeasement politics.

It is the second Congress-ruled state to pass such a resolution after Punjab. The Kerala Assembly too had passed such a resolution against the CAA moved jointly by the ruling Left Front alliance and the opposition Congress-led UDF.

The Rajasthan Assembly resolution, passed by voice vote, also asked the Centre to withdraw the new fields of information that have been sought for updation of the National Population Register (NPR) 2020.

"It is evident that the CAA violates the provisions of the Constitution. Therefore, the House resolves to urge upon the government of India to repeal the CAA to avoid any discrimination on the basis of religion in granting citizenship and to ensure equality before law for all religious groups of India," the state's parliamentary affairs minister Shanti Dhariwal said, moving the resolution.

Leader of the opposition Gulab Chand Kataria of the BJP questioned the state's right to challenge the Act.

"Granting citizenship is a matter for the Centre. In such a situation do we have the right to challenge the CAA? The Congress should stop doing appeasement and vote bank politics," he said.

Comments

abdullah
 - 
Sunday, 26 Jan 2020

Salute to Rajasthan Govt for rejecting communal and black CAA bill.   This bill is agaisnt the teach of our Constitution and bjp has never done anything as per our constitutin.   Its trying its best to scrap the constitution and restore it with RSS agenda.    We should oppose any move by bjp against the value of constitution.   As bjp has no respect to our constitution, it has no right to be in power.    Many of bjp leaders are giving statemetns against the value of constitution and such leaders should be treated as anti indians and action be taken on them.   

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Agencies
March 14,2020

New Delhi, Mar 14: Excise duty on petrol and diesel was on Saturday hiked by ₹3 per litre as the government looked to mop up gains arising from fall in international oil prices.

Special excise duty on petrol was hiked by ₹2 to ₹8 per litre incase of petrol and to Rs 4 incase of diesel, an official notification said.

Additionally, road cess on petrol was raised by ₹1 per litre each on petrol and diesel to ₹10.

The increase in excise duty would in normal course result in a hike in petrol and diesel prices but most of it would be adjusted against the fall in rates that would have necessitated because of slump in international oil prices.

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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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