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.

Comments

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
July 14,2020

Jaipur, Jul 14: Sachin Pilot has been removed as Deputy Chief Minister and Rajasthan PCC Chief, announced Congress leader Randeep Singh Surjewala on Tuesday.

"Sachin Pilot, Vishvendra Singh and Ramesh Meena have been removed from the posts of Deputy Chief Minister and Ministerial posts respectively. Sachin Pilot has also been removed as the Rajasthan PCC Chief," said Surjewala.

Govind Singh Dotasra has been appointed as the new PCC chief, he added.

"Sachin Pilot, few Congress Ministers and MLAs got involved in the conspiracy to topple the Congress government by getting entangled within the trap of BJP," he added.

The decision was taken after a Congress Legislature Party (CLP) meeting at the Fairmont Hotel in Jaipur, Rajasthan earlier today.

The Rajasthan Congress is in turmoil over the past few days. While Chief Minister Ashok Gehlot has blamed the BJP for attempting to destabilise the State government by poaching MLAs, Deputy Chief Minister Sachin Pilot has been camping in Delhi.

A controversy broke out in Rajasthan after Special Operation Group (SOG) sent a notice to Pilot to record his statement in the case registered by SOG in the alleged poaching of Congress MLAs in the State.

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Agencies
July 3,2020

Mumbai, Jul 3: In yet another move to keep Chinese technologies companies at bay, the Centre has cancelled the 4G upgradation tender for BSNL as it has decided to come up with fresh specifications for the upgrade process, sources said.

The Department of Telecommunications (DoT) is likely to issue a fresh tender in the next two weeks.

People in the know said that the fresh tender may not allow Chinese companies to participate and that the new tenders that will be floated in the next two weeks will emphasise on Make in India.

As the border tussle with China escalated last month and around 20 soldiers lost their lives, the government had last month asked both BSNL and MTNL not to use equipment of Chinese makers in their upgrading process to 4G facilities.

Huawei and ZTE are the major Chinese telecom equipment makers working with Indian telecom companies and they would be the hardest hit by the decision.

The impact may be felt in terms of the much-awaited 5G trials in the country. After much deliberation, the Centre last December decided to allow Huawei to take part in the 5G trials.

The cancellation of tender for BSNL's 4G upgradation comes after the Centre on Monday banned 59 Chinese apps including TikTok, WeChat and UC Browser.

A statement by the Ministry of Electronics and IT said that the decision was taken since "there is credible information that these apps are engaged in activities which are prejudicial to sovereignty and integrity of India, defence of India, security of state and public order".

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News Network
January 24,2020

Jan 24: India’s economy appears to be shaking off a slump, as activity in the services and manufacturing sectors expanded for a second straight month in December.

The needle on a gauge measuring so-called animal spirits signaled the economy may be taking a turn for the better, as five of the eight high-frequency indicators tracked by Bloomberg News came in stronger last month. The dial was last at the current position in August.

“Animal spirits” is a term coined by British economist John Maynard Keynes to refer to investors’ confidence in taking action, and the gauge uses the three-month weighted average to smooth out volatility in the single-month numbers.

The nascent recovery would need a helping hand, with expectations building that Finance Minister Nirmala Sitharaman will provide some stimulus when she presents the budget Feb. 1. Official forecasts show the economy is set to expand at 5% in the year ending March 2020 -- the weakest pace in more than a decade.

Here are the details of the dashboard:

Business Activity

The dominant services index rose to the highest level in five months in December as improving new work orders helped boost activity. The seasonally adjusted Markit India Services PMI index climbed to 53.3 from 52.7 in November, helping post a strong end to the calendar year.

India’s manufacturing PMI also rose -- to 52.7 from 51.2 a month ago -- boosted by the fastest increase in new orders since July. A reading above 50 means expansion while anything below that signals contraction.

The uptick in business confidence was accompanied by a rise in inflationary pressures, the survey showed. That trend may keep monetary policy makers from resuming interest-rate cuts anytime soon, leaving most of the heavy-lifting to boost growth with the government.

“The relative stability in macro indicators over the past two months suggests that the worst is behind, but the recovery is likely to be prolonged,” said Teresa John, an economist at Nirmal Bang Equities Pvt. in Mumbai. “Still, sluggish growth and rising inflation indicate that India may well remain in stagflation for most of 2020.”

Exports

Exports remained a laggard, falling 1.8% in December from a year ago. The drag was mainly because of a fall in export of engineering goods, which constitute a third of India’s non-oil exports.

Capital goods imports continued to contract and was lower by 16.5% year-on-year in December after a 22% drop in November. This was the seventh consecutive month of continuous decline, underscoring the weakness in the capex cycle, according to IDFC First Bank.

Consumer Activity

Weakness in demand for passenger vehicles persisted, with local sales falling 1.2% in December from a year ago, according to the Society of Indian Automobile Manufacturers. That capped the worst yearly passenger vehicle sales on record. A Nielsen study on demand for fast-moving consumer goods showed volume growth dropped to 3.5% in the last quarter of 2019 from 3.9% in the same period of 2018.

Funding conditions held out hope, showing considerable improvement in December, according to the Citi India Financial Conditions Index. Credit growth remained tardy though, with demand for loans rising at a slower 7.1% pace from a year ago compared with a nearly 8% growth in November.

Industrial Activity

Industrial output rose for the first time in four months in November. The pick up was broad-based, led by mining, manufacturing and electricity. Mining and manufacturing, in particular, posted a second month of sequential growth. Production of consumer goods also rose after a few months of contraction.

The index of eight core infrastructure industries, which feeds into the index of industrial production, however, declined 1.5% in November from a year ago -- the fourth straight month of contraction. That was on account of shrinking production of electricity, steel, coal, natural gas and crude oil. Both the core sector and industrial output numbers are reported with a one-month lag.

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