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
November 13,2024

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New Delhi: The Supreme Court took a firm stance on ‘bulldozer justice’ today, affirming that the Executive cannot bypass the Judiciary and that the legal process must not prejudge the guilt of an accused. In a significant judgment, the bench led by Justices BR Gavai and KV Viswanathan set new guidelines for demolition practices, responding to petitions challenging the controversial bulldozer actions taken against individuals accused of crimes.

The rise of this practice, termed 'bulldozer justice,' has seen authorities in various states demolish what they claim to be illegal structures belonging to accused individuals. However, multiple petitions questioned the legality and fairness of this approach, bringing the matter before the court.

Justice Gavai highlighted that owning a home is a cherished goal for many families, and an essential question was whether the Executive should have the authority to strip individuals of their shelter. “In a democracy, the rule of law protects citizens from arbitrary actions by the state. The criminal justice system must not assume guilt,” stated the bench, underscoring that due process is a fundamental right under the Constitution.

On the principle of separation of powers, the bench reinforced that the Judiciary alone holds adjudicatory powers and that the Executive cannot overstep these boundaries. Justice Gavai remarked, “When the state demolishes a home purely because its resident is accused of a crime, it violates the doctrine of separation of powers.”

The court issued a strong warning about accountability, stating that public officials who misuse their power or act arbitrarily must face consequences. Justice Gavai observed that selectively demolishing one property while ignoring similar cases suggests that the aim might be to penalize rather than enforce legality. “For most citizens, a house is the product of years of labor and dreams. Taking it away must be an action of last resort, thoroughly justified,” he said.

In its directives under Article 142 of the Constitution, the Supreme Court established new demolition guidelines. These include:

Mandatory Show-Cause Notice: No demolition should occur without first issuing a show-cause notice. The person served has a minimum of 15 days or the duration stated in local laws to respond.

Transparency of Notice Content: The notice must include specifics about the alleged unauthorized construction, the nature of the violation, and the rationale for demolition.

Hearing and Final Order: Authorities are required to hear the response of the affected individual before issuing a final order. The homeowner will have 15 days to address the issue, with demolition proceeding only if no stay order is obtained from an appellate authority.

Contempt Proceedings: Any breach of these guidelines would lead to contempt proceedings. Officials who disregard these norms will be personally accountable for restitution, with costs deducted from their salaries.

Additionally, the court mandated that all municipal bodies establish digital portals within three months, displaying show-cause notices and final orders on unauthorized structures to ensure public transparency and accountability.

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News Network
November 11,2024

Mangaluru: Six youths including teenagers have been arrested by the Bantwal Rural Police in connection with a brutal assault on 21-year-old Aboobakar (name changed to hide identity), an incident that was widely shared on social media after footage revealed the victim tied to a pole and violently beaten.

The arrested individuals, all from Kanchinadkapadavu, Sajipanadu village in Ullal Taluk, have been identified as Mohammad Sapwan (25), Mohammad Rizwan (25), Irfan (27), Anis Ahmad (19), Nasir (27), and Shakeer (18). According to police reports, the assault took place on November 7 in Kanchinadkapadavu.

The sequence of events began when Aboobakar was reportedly called to a residence in Kanchinadkapadavu by a female relative. Upon his arrival, he was confronted by the accused, who questioned his presence, tied him to a pole with ropes, and attacked him while he was shirtless. 

Aboobakar managed to file a police complaint the following day, detailing the assault. As his injuries worsened, he was admitted to a private hospital in Mangaluru.

While in the hospital, Aboobakar alleged that his attackers intended to kill him during the assault. This statement led to additional charges of attempted murder being filed. 

Police officials stated that the suspects were subsequently apprehended, charged with group assault and attempted murder, and placed in judicial custody. The investigation is ongoing, and further details are awaited.

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News Network
November 21,2024

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The International Criminal Court (ICC) has issued arrest warrants for Israeli prime minister Benjamin Netanyahu and his former minister of military affairs Yoav Gallant over war crimes against Palestinians in the Gaza Strip.

The court’s Pre-Trial Chamber I issued warrants of arrest for Netanyahu and Gallant "for crimes against humanity and war crimes committed from at least 8 October 2023 until at least 20 May 2024, the day the Prosecution filed the applications for warrants of arrest”, it confirmed in a statement Thursday.

It is the first instance in the court's 22-year history it has issued arrest warrants for Western-allied senior officials.

In its statement, the ICC's Pre-Trial Chamber I, a panel of three judges, said it has rejected appeals by Israel challenging its jurisdiction. 

The chamber said it has decided to release the arrest warrants because "conduct similar to that addressed in the warrant of arrest appears to be ongoing", referring to Israel's ongoing onslaught on Gaza.

Netanyahu and Gallant, it said, “each bear criminal responsibility” for “the war crime of starvation as a method of warfare; and the crimes against humanity of murder, persecution, and other inhumane acts,” as well as “intentionally directing an attack against the civilian population.”

All 124 states that signed the Rome Statute, the treaty that established the court, are now under an obligation to arrest the wanted individuals and hand them over to the ICC in the Hague. 

The court relies on the cooperation of member states to arrest and surrender suspects. The Netherlands' foreign minister quickly said his country was prepared to enforce the warrants while 93 nations earlier reiterated their support for the ICC.

Triestino Mariniello, a lawyer representing Palestinian victims at the ICC, called the warrants "a historic decision".

He noted that the court had endured "pressure and threats of sanctions" from the US government, but acted nonetheless.

As expected, the Tel Aviv regime rejected the rulings, with its security minister Itamar Ben Gvir calling the warrants “anti-Semitic through and through.”

The ICC said Israel’s acceptance of the court’s jurisdiction was not required.

Israel and its major ally, the United States, are not members of the court. 

Israel unleashed its bloody Gaza onslaught on October 7, 2023. So far, it has killed at least 43,985 Palestinians, mostly women and children, and injured 104,092 others, according to the Gaza Health Ministry.

Israel faces an ongoing South Africa-led genocide case at the International Court of Justice (ICJ).

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