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 30,2020

New Delhi, Jul 30: India's gold demand in 2020 is expected to fall to the lowest level in 26 years with domestic bullion prices hitting a record high and as falling disposable incomes could curtail retail purchases, the World Gold Council (WGC) said on Thursday.

Lower demand by the world's second-biggest bullion consumer could limit a rally in global prices, which hit a record high earlier this month, although it could also reduce India's trade deficit and support the ailing rupee.

"Fast rising gold prices could act as headwinds," said Somasundaram PR, the managing director of WGC's Indian operations.

Local gold futures have jumped 35% so far this year after rising a quarter in 2019.

India's gold consumption in the first half of 2020 plunged 56% on-year to 165.6 tonnes. Meanwhile, the coronavirus-triggered lockdown also slashed demand by 70% in the June quarter to 63.7 tonnes, the lowest in more than a decade, the WGC said in a report published on Thursday.

Millions of Indians have lost their jobs or taken a pay cut after the country imposed a lockdown on its 1.3 billion people to curb the spread of the virus that has infected more than 1.5 million Indians.

Consumption is generally high during the June quarter due to weddings and key festivals such as Akshaya Tritiya, but lockdown restrictions kept shoppers indoors this year.

The weak demand in the first half could drag down India's gold consumption in 2020 to the lowest since 1994, when demand stood at 415 tonnes, Somasundaram said, adding that it is still difficult to provide an estimate for full-year demand as the coronavirus crisis is still unfolding.

"Indian demand has previously jumped as much as 300 tonnes in a quarter. Latent demand could come out in the second half," Somasundaram said.

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News Network
March 4,2020

Beijing/Zurich, Mar 4: China has approved the use of Swiss drugmaker Roche's anti-inflammation drug Actemra for patients who develop severe complications from the coronavirus as it urgently hunts for new ways to combat the deadly infection that is spreading worldwide.

China is hoping that some older drugs could stop severe cytokine release syndrome (CRS), or cytokine storms, an overreaction of the immune system which is considered a major factor behind catastrophic organ failure and death in some coronavirus patients.

Actemra, a biologic drug approved in 2010 in the United States for rheumatoid arthritis (RA), inhibits high Interleukin 6 (IL-6) protein levels that drive some inflammatory diseases.

China's National Health Commission said in treatment guidelines published online on Wednesday that Actemra can now be used to treat coronavirus patients with serious lung damage and high IL-6 levels.

Separately, researchers in the country are testing Actemra, known generically as tocilizumab, in a clinical trial expected to include 188 coronavirus patients and running until May 10.

Roche, which donated 14 million yuan ($2.02 million) worth of Actemra during February, said the trial was initiated independently by a third party with the aim of exploring the efficacy and safety of the drug in coronavirus patients with CRS.

It added that there was currently no published clinical trial data on the drug's safety or efficacy against the virus.

More than 3,000 people have died and 93,000 have been infected by the novel coronavirus thought to have originated in Wuhan, China, before spreading to around 90 countries including the United States, Italy, Switzerland, France and Germany.

The Swiss company, for which China is its No. 2 market behind the United States, also makes diagnostic gear to detect the coronavirus.

Since Actemra's approval a decade ago, it has become a go-to drug against other inflammatory conditions, including cytokine storms in cancer patients receiving cell therapies from Novartis and Gilead Sciences.

In 2012 it helped save the life of a young U.S. girl, the first child to be treated for leukaemia with Novatis' Kymriah, from a post-treatment rush of IL-6.

Priced at between $20-30,000 annually for RA according to SSR Health, Roche's medicine is also used for rare juvenile arthritis and giant cell arteritis, or inflammation of the blood vessels.

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Agencies
March 1,2020

Kolkata, Mar 1: The Calcutta High Court has ruled that it is not mandatory for foreigners to produce a valid passport and its particulars for processing of application for grant of Indian citizenship if he is able to satisfy the appropriate authorities the reasons for non-availability of the document.

Justice Sabysachi Bhattacharya passed the order while disposing off a petition by granting the petitioner liberty to file an application before the authority "as contemplated in Rule 11 of the Citizenship Rules 2009, upon furnishing explanation as to the non-availability of the passport".

Bismillah Khan had filed the petition saying he was being denied the citizenship of India because of his inability to file an application under Section 5 (1) (c) of the Citizenship Act, 1955, apparently due to the mandatory requirement of furnishing a copy of the passport for such application.

The petitioner's counsel submitted that Khan was a Pakhtoon citizen and due to political turmoil in the said state, which subsequently merged partially into Afghanistan and partially into Pakistan, he, as a five-year old, had to migrate to India with his father in 1973.

Under such circumstances, the petitioner could not have any opportunity of having a valid passport, since they were refugees under distress, the counsel said.

The petitioner had previously approached a coordinate Bench of the court, wherein a single judge, passed an order on July 25, 2018, directing him to comply with the formalities required, as communicated by the secretary to the Government of India to the Secretary to the Government of West Bengal (Home), vide a letter dated December 7, 2017.

The court had then also given liberty to the petitioner to apply afresh before the appropriate authority under Section 5(1)(c) of the 1955 Act, having complied with all the formalities.

The petitioner then moved Bhattacharya's court submitting that a complete application as directed by the Coordinate Bench cannot be possibly filed by his client due to the mandatory requirement of uploading a copy of his passport, which the petitioner does not have due to reasons beyond his control.

The counsel said Khan is married to an Indian citizen, has a daughter and living in India for close to half a century.

The counsel for the union of India submitted that in view of no application having been filed by the petitioner, there is no scope of granting such proposed application at the present juncture for the Union.

The counsel argued that it is mandatory to file an application in Form III for the application of the petitioner under Section 5(1)(c) of the Act to be considered at all.

In view of the petitioner not complying with the mandatory requirement of submitting a copy of his passport, the state government cannot, under the law, forward such application to the union government.

After hearing all sides, Justice Bhattacharya said although the rule "contemplates that an application shall not be entertained unless the application is made in Form III, such provision ipso facto does not make the availability of a passport a mandatory requirement".

"..the Form given with the Rules or the Rules themselves cannot override the provision of the statute itself, under which the said Rules are framed, which does not stipulate such a mandate on the applicants for citizenship under Section 5 (1)(c) of the 1955 Act mandatorily to carry a passport".

The court said although such provision is included in the Form, which has to be complied with by the applicant, "it is nowhere indicated in such Form that all the relevant particulars, including the particulars regarding passport of the petitioner have to be furnished mandatorily, along with a copy of a valid foreign passport, even in the event the petitioner, for valid reasons, is not in a position to produce such passport".

Justice Bhattacharya ruled that under such circumstances, it cannot be held that the provision of producing a passport and its particulars is mandatory in nature and there has to be a relaxation in such requirement "in case the petitioner is able to satisfy the appropriate authorities the reasons for non- availability of such passport".

"Unless such a leeway is given to the applicants, genuine persons who otherwise have all the formal documents indicating that they have been residing in India for a long time and have married a resident of India would also be unable to apply for Indian Citizenship despite having lived their entire lives and contributed to the economy and diverse culture of this country."

He said such a scenario would be contradictory to the spirit of Article 14 of the Constitution of India.

"In such view of the matter, the requirement of having a passport has to be read as optional in Form III of the Citizenship Rules, 2009 and the authorities are deemed to have the power to relax such 6 requirement in the event the applicant satisfied the authorities for genuine reasons why the applicant is not in a position to produce such passport," the February 24 order said.

The court ruled that despite the provision of making applications online, a provision has to be made for persons who do not have all the particulars of their passport, which is read as optional, to file applications manually, which are to be treated as valid applications under Rule 5 of the Citizenship Rules, 2009.

The court also ordered that alternatively the necessary software be amended so that the online applications can be presented with or without passports, in the latter case furnishing detailed reasons as to non-furnishing of passports.

"Sanctioning of such forms, however, will be conditional upon the satisfaction of the relevant authorities about the reasons for the applicant not being able to produce her/his passport," the order said.

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