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
June 7,2020

New Delhi, Jun 7: A day after India and China military commanders held "cordial and positive" talks at Chushul-Moldo point along the Line of Actual Control in Eastern Ladakh, Ministry of External Affairs said the two countries have agreed to "peacefully" resolve the situation in the border areas by continuing the military and diplomatic engagements.

The Indian delegation led by 14 Corps Commander Lt Gen Harinder Singh on Saturday met his Chinese equivalent Maj Gen Liu Lin, who is the commander of South Xinjiang Military Region of the Chinese People's Liberation Army, to address the ongoing tussle in Eastern Ladakh.

In a statement on Sunday, the MEA said that the meeting between the Corps Commander based in Leh and the Chinese Commander took place in a "cordial and positive atmosphere".

"Both sides agreed to peacefully resolve the situation in the border areas in accordance with various bilateral agreements and keeping in view the agreement between the leaders that peace and tranquillity in the India-China border regions is essential for the overall development of bilateral relations," the statement read.

They also noted that this year marked the 70th anniversary of the establishment of diplomatic relations between the two countries and agreed that an early resolution would contribute to the further development of the relationship.

"Accordingly, the two sides will continue the military and diplomatic engagements to resolve the situation and to ensure peace and tranquillity in the border areas," it further read.

China has moved its troops along the Line of Actual Control (LAC) in the Eastern Ladakh areas including the Finger area, Pangong Tso Lake, and Galwan Nala area.

The meeting between military commanders was to discuss and resolve the stand-off in Eastern Ladakh.

Following the meeting, the Army Headquarters' Directorate General of Military Operations also briefed the Ministry of External Affairs and other concerned government officials about the discussions.

On Friday, officials of India and China interacted through video-conferencing with the two sides agreeing that they should handle "their differences through peaceful discussion" while respecting each other's sensitivities and concerns and not allowing them to become disputes in accordance with the guidance provided by the leadership.

In the last few days, there has not been any major movement of the PLA troops at the multiple sites where it has stationed itself along the LAC opposite Indian forces.

The Chinese Army's intent to carry out deeper incursions was checked by the Indian security forces by quick deployment.

The Chinese have also brought in heavy vehicles with artillery guns and infantry combat vehicles in their rear positions close to the Indian territory.

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News Network
July 27,2020

Tokyo, Jul 27: Gold hit an all-time high on Monday as tit-for-tat consulate closures in China and the United States rattled investors, boosting the allure of safe-haven assets, although sentiment was mixed with tech gains supporting some Asian stocks.

MSCI's ex-Japan Asia-Pacific index rose 1.3 percent as Taiwan's TSMC, Asia's third-largest company by market capitalisation, rose almost 10 percent.

The chipmaker's gains boosted other tech stocks in the region and came after rival Intel signalled it may give up manufacturing its own components due to delays in new 7-nanometer chip technology.

Also soothing sentiment, Chinese shares eked out gains after big falls late last week, with CSI300 index rising 0.5 percent.

S&P500 futures were last up 0.4 percent in choppy trade while Japan's Nikkei fell 0.5 percent, resuming trade after a long weekend and catching up with falls in global shares late last week.

Global shares had lost steam last week after Washington ordered China's consulate in Houston to close, prompting Beijing to react in kind by closing the US consulate in Chengdu.

US Secretary of State Mike Pompeo took fresh aim at China last week, saying Washington and its allies must use "more creative and assertive ways" to press the Chinese Communist Party to change its ways.

"US President (Donald) Trump used to say China's President Xi Jinping is a great leader. But now Pompeo's wording is becoming so aggressive that markets are starting to worry about further escalation," said Norihiro Fujito, chief investment strategist at Mitsubishi Securities.

Gold rose 1.0 percent to a record high of $1,920.9 per ounce, surpassing a peak touched in September 2011, as Sino-US tensions boosted the allure of safe-haven assets, especially those not tied to any specific country.

The yellow metal is also helped by aggressive monetary easing adopted by many central banks around the world since the pandemic plunged the global economy into a recession.

Some investors fret such an unprecedented level of money-printing could eventually lead to inflation.

MORE STIMULUS

Hopes of a quick US economic recovery are fading as coronavirus infections showed few signs of slowing.

That means the economy could capitulate without fresh support from the government, with some of earlier steps such as enhanced jobless benefits due to expire this month.

Investors hope US Congress will agree on a deal before its summer recess but there are some sticking points including the size of the stimulus and enhanced unemployment benefits.

US Treasury Secretary Steve Mnuchin said the package will contain extended unemployment benefits with 70 percent "wage replacement".

Democrats, who control the House of Representatives, want enhanced benefits of $600 per week to be extended and look to much bigger stimulus compared with the Republicans' $1 trillion plan.

Investors are looking to corporate earnings from around the world for hints on the pace of recovery in the global economy.

"It looks like rising coronavirus cases are starting to slow down recovery in many countries," said Masahiro Ichikawa, senior strategist at Sumitomo Mitsui DS Asset Management.

Concerns about the US economic outlook started to weigh on the dollar, reversing its inverse correlation with the economic well-being over the past few months.

The dollar index dropped 0.3 percent to its lowest level in nearly two years.

The euro gained 0.3 percent to $1.1693, hitting a 22-month high of $1.16590 as sentiment on the common currency improved after European leaders reached a deal on a recovery fund in a major step towards more fiscal co-operation.

Against the yen, the dollar slipped 0.5 percent to 105.605 yen, a four-month low while the British pound hit a 4 1/2-month high of $1.2832.

Oil prices dipped on worries about the worsening Sino-US relations.

Brent futures fell 0.46 percent to $43.14 per barrel while US crude futures lost 0.44 percent to $41.11.

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News Network
January 3,2020

Mumbai, Jan 3: The Shiv Sena on Friday targeted the Centre by questioning the "efficacy" of the 2016 surgical strike and said the perception that it would demoralise Pakistani terrorists remained an "illusion" as Indian soldiers continue to get killed in terror attacks in Kashmir.

Accusing the Modi government of boasting about how Pakistan was straightened out after the surgical strike, the Sena sought to know whether it has really happened.

It also observed that troubled borders were not good for the country's well-being.

The Sena's remarks come in the wake of the death of an Army soldier from Maharashtra, Naik Sandip Raghunath Sawant, who was killed during a counter-insurgency operation in Jammu and Kashmir on Wednesday.

"The New Year did not begin on a positive note in Kashmir. Our jawan from Satara, Sandip Sawant, attained martyrdom in Kashmir along with two other soldiers. In the last one month, seven to eight jawans from Maharashtra were killed in the line of duty. The Maha Vikas Aghadi government in Maharashtra is not responsible for this," the Sena said in an editorial in party mouthpiece 'Saamana'.

The party also questioned whether the situation in Kashmir has improved after the surgical strike and abrogation of Article 370 provisions.

The party, however, maintained that scrapping Article 370 was a good move.

India had conducted the surgical strike on September 29, 2016, across the Line of Control (LoC) as a response to a terrorist attack on an Indian Army base in Uri sector of Jammu and Kashmir earlier that month.

Without naming the Centre, the Sena alleged, "Circulating news that only the Pakistanis were getting killed in Kashmir will not change the reality as tricolour-draped bodies of Indian soldiers, like Sawant, are reaching their respective villages."

"There is a bloodshed along the Kashmir border and mounting anger among the families of martyred jawans. The perception that surgical strike will demoralise Pakistani terrorists has turned out to be an illusion. In fact, the (terror) attacks have increased," it added.

The Uddhav Thackeray-led party accused the ruling BJP of boasting about straightening out Pakistan after the surgical strike.

"But has Pakistan been really straightened out? Rather Pakistan has been indulging in ceasefire violations along the LoC every day," it added.

The Shiv Sena also questioned the government's claim that the situation in Kashmir was under control after the nullification of Article 370.

"It is good that Article 370 was scrapped. Before that, surgical strike was carried out in Pakistan. But has the situation in Kashmir improved? The terror attacks continue. It's only that there is a control in reporting (these incidents)," it said.

The Sena also alleged that there was no clarity as to what was transpiring in Kashmir after the scrapping of Article 370 and only the media reports of soldiers sacrificing their lives have been coming out from that state

In a veiled attack on the BJP, its erstwhile ally, the Sena, also accused it of exploiting the surgical strike for political gains.

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