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 31,2020

New Delhi, Jan 31: Nirbhaya's mother Asha Devi on Friday said she will continue her fight till the convicts in the 2012 gangrape and murder case are hanged, shortly after a Delhi court postponed the execution of death warrants till further order.

Devi told reporters her "hopes are dashed" but she will continue her fight.

"These convicts have no right to live. We keep getting disappointed by the system. I will continue my fight till the convicts are hanged," she said.

A Delhi court postponed the execution of death warrants of the four convicts in the Nirbhaya gangrape and murder case till further order.

Additional sessions judge Dharmender Rana passed the order on a plea by the convicts seeking a stay on their execution on Saturday, February 1.

Devi said because of the loopholes in law the "criminals' lawyers had the audacity to challenge me in court that they will not be hanged".

The black warrants for execution of the death sentence against Pawan Gupta, Vinay Kumar Sharma, Akshay Kumar and Mukesh Kumar Singh, were issued on January 17.

A 23-year-old physiotherapy intern who came to be known as "Nirbhaya" (the fearless one) was gangraped and savagely assaulted on the night of December 16, 2012, in a moving bus in South Delhi. She died of her injuries a fortnight later in a Singapore hospital.

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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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Agencies
June 17,2020

In a bid to help tackle rise in domestic violence during the social distancing times in India, Twitter on Wednesday launched a dedicated search prompt to serve information and updates from authoritative sources around domestic violence.

Twitter has partnered with the Ministry of Women and Child Development the National Commission for Women in India to expand its efforts towards women.

The search prompt will be available on iOS, Android and on mobile.twitter.com in India, in both English and Hindi languages, the company said in a statement.

Data shows that since the outbreak of Covid-19, violence against women and girls has intensified in India and across the globe.

"We recognise collaboration with the public, government and NGOs is key to combating the complex issue of domestic violence. Accessing reliable information through this search prompt could be a survivor's first step towards seeking help against abuse and violence," said Mahima Kaul, Director, Public Policy, India and South Asia, Twitter.

Every time someone searches for certain keywords associated with the issue of domestic violence, a prompt will direct them to the relevant information and sources of help available on Twitter.

This is an expansion of Twitter's #ThereIsHelp prompt, which was specifically put in place for the public to find clear, credible information on critical issues.

The feature will be reviewed at regular intervals by the Twitter team to ensure that all related keywords generate the proactive search prompt, said the company.

Violence against women and girls across Asia Pacific is pervasive but at the same time widely under reported.

"In fact, in many countries in our region, the number is even greater, with as many as 2 out of 3 women in some countries reporting experiences of violence," added Melissa Alvarado, UN Women Asia Pacific Regional Manager on Ending Violence against Women.

Rekha Sharma, Chairperson, the NCW, said: "With social distancing norms in place, several women are unable to contact their regular support systems. This initiative by Twitter will provide big support to the survivors, who would otherwise be easily isolated without access to relevant information and help".

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