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 12,2024

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The Palestinian Hamas resistance movement says its fighters have killed at least 20 Israeli soldiers in northern parts of the besieged Gaza Strip in just two days, in retaliation for the occupying regime’s genocidal war on the Palestinian territory.

In a statement on Monday evening, Hamas said that fighters of its military wing, al-Qassam Brigades, “killed at least five occupation soldiers” in northern parts of the coastal territory earlier in the day.

It added that Hamas fighters also killed 15 Israeli soldiers in the war-ravaged region on Sunday.

The resistance movement’s “qualitative operation … confirms once again the failure of the criminal Zionist entity to suppress and eradicate the Palestinian resistance, which continues to direct qualitative strikes against its terrorist soldiers,” Hamas further said on its Telegram channel.

Palestinians have increased their resistance operations in the face of intensified Israeli aggression in northern Gaza that has claimed the lives of more than 1,000 over the past weeks.

“Our valiant resistance is waging a war of attrition with the criminal enemy, inflicting daily losses on its soldiers and vehicles, and all of [Israeli prime minister Benjamin] Netanyahu’s bets and dreams of achieving any of his goals are failing,” the Gaza-based resistance movement added.

Hamas also vowed that Israel’s ongoing crimes and aggression against Gaza would be met with increased resistance and painful strikes, which will continue until the aggression against Palestinians ends and the regime fully withdraws from the blockaded territory.

As the war in Gaza enters its 14th month, the Health Ministry reports that Israeli attacks have killed at least 43,603 Palestinians and wounded 102,929 others.

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News Network
November 13,2024

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Beirut: The Israeli army on Tuesday continued to launch attacks against civilians in Lebanon, targeting them in several areas without prior evacuation warnings.

However, 13 airstrikes on Beirut’s southern suburbs in the space of only three hours were preceded by evacuation warnings.

The attacks caused no injuries but resulted in widespread destruction of residential buildings and commercial, medical and educational centers.

The airstrikes in southern Lebanon and Bekaa region, reaching Akkar in Lebanon’s far north, erased any hope of a near-term ceasefire settlement.

The strikes were accompanied by an announcement on Israel’s Channel 14 that “the Israeli army has expanded its operations in southern Lebanon to areas it had not reached since the beginning of the ground operation.”

About 50 days have passed since Israel intensified its hostile operations in Lebanon targeting Hezbollah. The death toll from these confrontations and attacks has passed 3,200, with more than 14,000 wounded.

For the first time, an airstrike targeted a mountainous area between Baalchmay and Aabadiyeh on the road leading to Aley, destroying a building housing displaced people.

The mayor of Baalchmay, Adham Al-Danaf, confirmed that “the airstrike targeted a residential building in the Dhour Aabadiyeh area.”

The initial toll from the Ministry of Health showed “five people killed and two injured.”

The raids that targeted Beirut’s southern suburbs for the first time in the morning, unlike nightly raids before, caused huge destruction. Those who evacuated their homes after Israeli warnings, used their phones to record the collapse of empty buildings in Sfeir, Haret Hreik, Bir Al-Abed, Mrayjeh, Laylaki and Hadath.

Israeli warplanes also targeted Tyre, where a strike on a building killed three people and injured many others, while a raid on Tefahta killed a man identified as Kifah Khalil and his family.

Attacks were widespread, with Yater and Zebqine subject to artillery shelling, a civilian being killed in Hermel, and further attacks on Bouday and an area between the towns of Srifa and Arsoun.

A raid on the town of Siddiqin killed two people and injured several others, while an attack on the Mechref farm led to one fatality and multiple injuries.

The search for those missing after an Israeli raid on the town of Ain Yaacoub in Akkar, in the northernmost part of Lebanon, continued until dawn.

During the operation, 14 bodies were retrieved, identified as those of residents displaced from the town of Arabsalim in the Iqlim Al-Tuffah area of the south, along with members of a Syrian family, a mother and three of her children. Additionally, there were 10 people in critical condition.

The targeted residence belongs to a Lebanese citizen, Hussein Hashim, who is reported to be a member of the Syrian Social Nationalist Party.

An airstrike on the town of Saksakiyeh in the Sidon region on Monday night resulted in yet another tragedy.

It appeared that the intended target was the Shoumer family, who just days before lost Hussein Amin Shoumer and his two sisters in a drone strike near Al-Awali River.

Israeli army spokesperson Avichay Adraee issued additional evacuation warnings for towns in the southern region along the Litani River, which, according to estimates from the mayors, are currently 90 percent uninhabited.

In the meantime, Hezbollah announced its continued efforts to “combat the intrusions of Israeli forces and to strike military installations and towns in the north.”

Hezbollah said in a statement that it confronted “an Israeli Hermes 450 drone in the airspace of Nabatieh and forced it to leave Lebanese airspace.”

The party also announced that it targeted “Kfar Blum settlement with a rocket salvo.”

On the Israeli side, air raid sirens sounded in areas of Upper and Western Galilee and in the town of Kiryat Shmona and its surroundings.

The Israeli army confirmed that “a drone exploded in Nesher, east of Haifa, without activating the air raid sirens,” and that “a drone launched from Lebanon crashed into a school in Gesher HaZiv, north of Nahariya.”

Israel’s Channel 13 reported the Israeli military’s assessment regarding Hezbollah’s military strength, claiming that the group currently possesses approximately 100 precision missiles, thousands of artillery shells, and hundreds of rockets. Additionally, it was highlighted that “there are around 200 Lebanese towns that remain unvisited.”

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News Network
November 14,2024

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Bengaluru: The Prime Minister Narendra Modi led union government has requested the Karnataka High Court to direct the Mandya district administration and the state government to clear a madrasa operating within the premises of the historic Jama Masjid in Srirangapatna.

The Waqf Board, opposing this move, has claimed the mosque as its property and defended the right to conduct madrasa activities there.

The matter was brought before a division bench headed by Chief Justice N V Anjaria following a public interest litigation filed by a person named Abhishek Gowda from Kabbalu village in Kanakapura taluk. The petition alleged “unauthorised madrasa activities” within the mosque.

Representing the Central government, Additional Solicitor General of India for High Court of Karnataka, K Arvind Kamath argued that the Jama Masjid was designated as a protected monument in 1951, yet unauthorised madrasa operations continue there.

He noted that concerns over potential law and order issues have so far prevented any intervention. Kamath urged the court to direct the Mandya district administration to take action and vacate the madrasa from the mosque.

In defence, lawyers for the state government and the Waqf Board contested this request, stating that the Waqf Board had been recognised as the owner of the property since 1963 and, thus, conducting madrasa activities there is lawful.

After hearing both sides, the bench adjourned the case for further arguments, scheduling the next hearing for November 20.

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