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
February 21,2020

Aurangabad, Feb 21: The All India Majlis-e-Ittehad-ul-Muslimeen (AIMIM) will seek an explanation from its leader Waris Pathan over his alleged '15 crore Muslims can be heavy on 100 crore' remark he recently made in Karnataka, a party leader said here on Friday.

Pathan had made the purported remarks while addressing an anti-Citizenship (Amendment) Act (CAA) rally at Kalaburagi in North Karnataka on February 16.

"We have to move together. We have to take Azadi (freedom), things that we don't get by asking, we have to take it by force, remember it...(We maybe) 15 crore, but are heavy on 100 (crore), remember it," Pathan can be heard purportedly saying in a video of his speech that has gone viral.

Talking to reporters here, AIMIM's Maharashtra unit chief and Aurangabad MP Imtiyaz Jaleel said, "Our party does not support the statement made by Waris Pathan. The party will seek an explanation from him over the remarks."

"If needed, we will come out with a set of dos and don'ts for the party workers to be while giving speech," he said.

"BJP leaders Anurag Thakur and Yogi Adityanath had also given some hateful statements, but none questioned them about it," Jaleel added.

On Thursday, a young woman had raised "Pakistan Zindabad" slogan in Bengaluru during a protest against CAA, NRC and NPR, where AIMIM chief Asaduddin Owaisi was also present. Owaisi had denounced her action.

Talking about the incident, Jaleel said, "That event was not organised by the AIMIM. It was organised by JD(S) and leaders of all parties were there. Asaduddin Owaisi stopped the woman and also condemned her act. But it is being projected that it was AIMIM's stage."

Meanwhile, the BJP and the Raj Thackeray-led Maharashtra Navnirman Sena (MNS) held protests in Aurangabad against Pathan, seeking stern action against him.

The BJP protested in Gulmandi area and burnt an effigy of Pathan.

"Waris Pathan has hurt the feelings of 100 crore people. He has tried to divide the people of the country. The state government should take action against him and send him out of Mumbai," BJP MLA Atul Save said.

The MNS took out a symbolic funeral procession of Pathan and raised slogans against the AIMIM.

"The language of Waris Pathan was disgusting. He should be banned from giving public speeches in the state and also be arrested," MNS lader Prakash Mahajan said.

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News Network
January 22,2020

Jan 22: India's ranking in the latest global Democracy Index has dropped 10 places to the 51st spot out of 167 owing to violent protests and threats to civil liberties challenging freedoms across the country.

Prime Minister Narendra Modi's government has been criticized by rights groups and western governments after shutting off the internet and mobile phone networks and detaining opposition politicians in Kashmir.

Modi’s government has also responded harshly to ongoing protests against a controversial, religion-based citizenship law. Muslims have said their neighborhoods have been targeted, while the central government has attempted to ban protests and urged TV news channels not to broadcast “anti-national” content. Some leaders in Modi’s ruling party called for “revenge” against protesters. India’s score in 2019 was its worst ranking since the EIU’s records began in 2006, and has fallen gradually since Modi was elected in 2014.

The Economist Intelligence Unit’s 2019 Democracy Index, which provides an annual comparative analysis of political systems across 165 countries and two territories, said the past year was the bleakest for democracies since the research firm began compiling the list in 2006.

“The 2019 result is even worse than that recorded in 2010, in the wake of the global economic and financial crisis,” the research group said in releasing the report on Wednesday.

The average global score slipped to 5.44 out of a possible 10 -- from 5.48 in 2018 -- driven mainly by “sharp regressions” in Latin America, Sub-Saharan Africa, the Middle East and North Africa. Apart from coup-prone Thailand, which improved its score after holding an election last year, there were also notable declines in Asia after a tumultuous period of protests and new measures restricting freedom across the region’s democracies.

Asia Declines

Hong Kong, meanwhile, fell three places to rank 75th out of 167 as more than seven months of violent and disruptive protests rocked the Asian financial hub. An aggressive police response early in the unrest, when protests were mostly peaceful, led to a “marked decline in confidence in government -- the main factor behind the decline in the territory’s score in our 2019 index,” the group said.

In Singapore, which ranked alongside Hong Kong at 75th, a new “fake news” law led to a deteriorating score on civil liberties.

“The government claims that the law was enacted simply to prevent the dissemination of false news, but it threatens freedom of expression in Singapore, as it can be used to curtail political debate and silence critics of the government,” EIU analysts said.

China’s score fell to just 2.26 in the EIU’s ranking, placing it near the bottom of the list at 153, as discrimination against minorities, repression and surveillance of the population intensified. Still, in China “the majority of the population is unconvinced that democracy would benefit the economy, and support for democratic ideals is absent,” the EIU said.

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News Network
April 23,2020

Riyadh, Apr 22: In an extraordinary initiative, the government of the Kingdom of Saudi Arabia has decided to facilitate the travel of expatriates who have an exit and reentry visa or final exit visa to return to their countries.

This is in line with the order of Custodian of the Two Holy Mosques King Salman, according to the Saudi Press Agency.

According to the initiative, called “Auda” (return), expatriates can apply seeking permission for travel to their countries through the Absher portal of the ministry.

Announcing this, Saudi's Ministry of Interior said that the initiative will be implemented in cooperation with a number of relevant government agencies.

Requests for travel from expatriates will be received and approved in coordination with the relevant authorities to complete their travel procedures on board international flights.

As per the initiative, a text message will be sent to the beneficiary stating the travel date, ticket number and reservation details, and by which the beneficiary can obtain his travel ticket and complete the travel procedures.

Clarifying the procedures for the travel, the ministry said that the applicant shall select the icon (Auda) after visiting the Absher portal and fill the following fields: iqama (residency permit) number, date of birth, mobile number, departure city and airport of arrival.

It is not mandatory for the expatriate to have his own Absher account for availing of the service, the ministry said, adding that this facility is to enable expatriates to benefit from this initiative.

The departure will be through the following airports: King Khalid International Airport in Riyadh, King Abdulaziz International Airport in Jeddah, Prince Muhammad International Airport in Madinah, and King Fahd International Airport in Dammam.

Those expatriates who are outside these cities can benefit from the service through entering airport of departure after completion of their travel procedures in sufficient period of time.

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