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
March 23,2020

Dubai, Mar 23: The United Arab Emirates announced on Monday it will temporarily suspend all passenger and transit flights amid the novel coronavirus outbreak.

The Emirati authorities "have decided to suspend all inbound and outbound passenger flights and the transit of airline passengers in the UAE for two weeks as part of the precautionary measures taken to curb the spread of the COVID-19", reported the official state news agency, WAM.

It said the decision -- which is subject to review in two weeks -- will take effect in 48 hours, adding: "Cargo and emergency evacuation flights would be exempt."

The UAE, whose international airports in Abu Dhabi and Dubai are major hubs, announced on Friday its first two deaths from the COVID-19 disease, having reported more than 150 cases so far.

Monday's announcement came hours after Dubai carrier Emirates announced it would suspend all passenger flights by March 25.

But the aviation giant then reversed its decision, saying it "received requests from governments and customers to support the repatriation of travellers" and will continue to operate passenger flights to 13 destinations.

Emirates had said it will continue to fly to the United Kingdom, Switzerland, Hong Kong, Thailand, Malaysia, the Philippines, Japan, Singapore, South Korea, Australia, South Africa, the United States and Canada.

"We continue to watch the situation closely, and as soon as things allow, we will reinstate our services," said the airline's chairman and CEO, Sheikh Ahmed bin Saeed Al-Maktoum.

Gulf countries have imposed various restrictions to combat the spread of the novel coronavirus pandemic, particularly in the air transport sector.

The UAE has stopped granting visas on arrival and forbidden foreigners who are legal residents but are outside the country from returning.

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News Network
February 9,2020

New Delhi, Feb 8: Arvind Kejriwal is set to return as Delhi chief minister and his Aam Aadmi Party (AAP) will virtually sweep the assembly elections, exit polls predicted Saturday.

As polling came to a close at 6 pm, with the Election Commission of India (ECI) projecting a voter turnout at 60.24% (as of 9:50 pm), a poll of polls covering 10 exit polls gave 52 seats to AAP, 17 to the Bharatiya Janata Party and one to the Indian National Congress.

The polls, which are sample surveys conducted among voters exiting polling booths, signalled that the Delhi voter responded to AAP’s campaign that focused on “kaam”, or getting work done.

Kejriwal, a former civil servant and activist who stormed into electoral politics with an anti-corruption campaign in 2013, led a campaign focusing on the development work his government did in Delhi, especially in education and healthcare, as well as sops such as lower electricity bills and free bus rides for women.

The exit polls gave AAP between 47 and 68 seats in the 70-member Assembly.

They predicted an absolute rout for Congress, which ruled Delhi for three terms between 1998 and 2013. The maximum seats to AAP were given by India Today TV-Axis exit poll, which predicted 59-68 seats for the party, while giving 2-11 for the BJP and none to the Congress.

If these figures hold, the results will come as a disappointment for the BJP, which had hoped its sweep in the Lok Sabha elections in 2019 would reflect in the assembly polls.

Delhi’s voter turnout saw a sharp fall over the 2015 elections. According to the Election Commission of India, voter turnout till 9 pm was projected at 60.24% — lower than 67.12% in 2015.

Traditionally, a lower voter turnout is read as a vote for the incumbent.

The voter turnout in Delhi has been similar during the Congress regime under Sheila Dikshit, when she won consecutive terms. In 2003, when Delhi voted a second time for the Dikshit government, the voter turnout was 53.42%, and a comparable 57.58% was the turnout in 2008.

Later, in two consecutive elections — 2013 and 2015 — voters turned out in big numbers to vote Dikshit out of power. In 2013, 65.63% of Delhi turned out and the percentage increased further to 67.12% in 2015.

Across constituencies, Matia Mahal in Central Delhi registered the highest voter turnout of 68.36%, whereas Bawana assembly constituency in North district saw the lowest turnout at 41.95%. Among districts, North East district registered the highest (62.75%) voter turnout, while the lowest turnout was recorded in South East district (54.15%), according to the ECI app.

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News Network
February 5,2020

Chennai, Feb 5: The popular cine actor Rajinikanth has defended the Union Government on the Citizenship Amendment Act, saying it will not affect the Indian Muslims.

In a brief interaction with reporters this morning in Chennai, the matinee idol said if the Muslims are affected by the CAA, he would be at the forefront in their defence. He asked how will the legislation affect the Indian Muslims when they chose to stay back in the country to make it their motherland. Mr Rajinikanth also supported the National Population Register saying it has been in force even in the past.

On the NRC, Mr Rajinikanth said the Government has already made it clear that its nationwide rollout has not been even discussed so far. Mr Rajinikanth is nourishing political ambitions and has made it clear that he would plunge into politics ahead of the Tamil Nadu Assembly Elections in the state which is due in 2021.

Comments

Arif
 - 
Wednesday, 5 Feb 2020

This law violates the fundamentals of the Indian constitution. Whey they are seeing the Muslims angle first?

 

It looks that they are misinforming the public by diverting into a Muslim only issue. If that was the case, why so many non-Muslims are protesting? I looks like Rajini has back-end support to the center's CAA move.

 

Suresh SS
 - 
Wednesday, 5 Feb 2020

He is another crack, hamare desh main pagal logon ki kami nahi

Wellwisher
 - 
Wednesday, 5 Feb 2020

What can expect from ex KSRTC bus conductor

 

 
clear sign of ZERO knowedge with Indian constitution.

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