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.

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 10,2024

kartikbhat1.jpg

Mangaluru: A heart-wrenching tragedy unfolded in the quiet Bellayuru village on the outskirts of Mangaluru as a man’s life ended on a railway track following an apparent double murder. Authorities from the Mulki police station identified the man as Karthik Bhat, 32, whose lifeless body was discovered on the tracks with his head positioned on the rail, indicating a tragic suicide.

Nearby, police recovered keys to a scooter and a house, which eventually led them to uncover a series of chilling events. Following the trail, officers located Bhat’s scooter parked near Mahammayi Temple. Inside the vehicle, they found documents confirming his identity, including an RC, insurance papers, and his driving license.

Their search continued to Bhat's home in Pakshikere, Kemral village, where they discovered a locked room. With the keys retrieved from the tracks, police unlocked the door, only to be confronted by a horrifying sight. The bodies of Priyanka (28) and her young son Hriday (4) lay in a pool of blood, pointing to a brutal murder that occurred just hours before Bhat’s suicide.

Initial investigations suggest Bhat, beleaguered by ongoing family disputes, committed the murders of his wife and son on the evening of November 8 before tragically ending his own life. A death note found in his diary hinted at his mental state and tragic intentions.

Priyanka’s family, residing in Shivamogga, was informed of the incident. The couple, married for six years, now leaves behind grieving relatives and unanswered questions. Police have initiated formal proceedings, collecting statements from family members as they continue their investigation into the tragic sequence of events.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 22,2024

Mangaluru: A man fell victim to an online scam, losing Rs 1.7 crore after fraudsters posed as officials from TRAI. According to a complaint filed at the CEN police station, the incident began on November 11, when the complainant received a call from an unknown number at 9:49 am.

The caller, claiming to represent TRAI, alleged that another mobile number registered under the complainant's name was involved in illegal activities in Andheri (East), Mumbai. The caller further stated that an FIR was lodged against the complainant for harassment under the guise of marketing. He was instructed to contact Andheri (East) police station immediately or risk his mobile service being deactivated within two hours.

The complainant was subsequently connected to an individual named Pradeep Sawant, who claimed the complainant was implicated in a money laundering scheme linked to the Naresh Goyal fraud case. Sawant alleged that a fraudulent bank account under the complainant's name was opened at Canara Bank, Andheri, and used to purchase a SIM card for illegal activities. He warned that the complainant could face arrest.

Later, the complainant was contacted via WhatsApp video call by individuals posing as Rahul Kumar (a police officer) and Akanksha (a CBI officer). They allegedly sent fabricated CBI documents to his WhatsApp number. The fraudsters demanded money to "resolve" the case. Fearing threats, the complainant allegedly transferred Rs 1.7 crore through RTGS in batches of Rs 53 lakh, Rs 74 lakh, and Rs 44 lakh between November 13 and 19. A case has been registered at the CEN police station and an investigation is ongoing.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 13,2024

voting.jpg

Bengaluru: An estimated overall 10.14 per cent voter turnout was recorded during the first two hours, since the voting began for bypolls to three Assembly segments in Karnataka on Wednesday, election officials said.

The voting began at 7 am and will go on till 6 pm.

More than seven lakh voters are eligible to cast their votes in about 770 polling stations in Shiggaon, Sandur and Channapatna, where a total of 45 candidates are in the fray.

While Channapatna recorded 10.34 per cent voter turnout till 9 am, it was 10.08 per cent in Shiggaon, and 9.99 per cent in Sandur, election officials said.

Voters, including women and elderly were seen queuing up in front of polling booths in these segments.

By-polls for Sandur, Shiggaon, and Channapatna are necessitated, as the seats fell vacant following the election of their respective representatives -- E Tukaram of Congress, former CM Basavaraj Bommai of BJP, and Union Minister H D Kumaraswamy of JD(S) -- to Lok Sabha in May elections.

As many as 31 candidates are in the fray from Channapatna, while Sandur and Shiggaon have six and eight contenders, respectively.

Elaborate security arrangements have been made in the three segments for the smooth conduct of the polls.

The by-polls will witness a straight fight between the ruling Congress and BJP in Sandur and Shiggaon segments, while in Channapatna, JD(S) which is part of the NDA alliance is in contest against the grand old party.

Among the three segments, Channapatna is considered to be a "high profile", where the contest is between C P Yogeeshwara, a five time MLA from the segment and former Minister, who joined the Congress quitting BJP ahead of nomination, and actor-turned -politician Nikhil Kumaraswamy, who is Kumaraswamy’s son and former PM H D Deve Gowda's grandson.

BJP's Bharath Bommai, son of Basavaraj Bommai, is fighting Congress Yasir Ahmed Khan Pathan, who had faced defeat against the former Chief Minister in the 2023 Assembly polls, in Shiggaon.

Bharath Bommai and his father cast their vote at a polling booth in Shiggaon segment.

In Sandur, Bellary MP Tukaram's wife E Annapurna of Congress is contesting from the seat vacated by her husband, against, BJP ST Morcha president Bangaru Hanumanthu, who is considered close to party leader and former mining barron G Janardhan Reddy.

Annapurna, Tukaram and other family members cast their votes at a booth in the segment.

With Nikhil Kumaraswamy and Bharath Bommai contesting, the third generation of Gowda and Bommai families are in the fray in this by-poll. Both their fathers and grandfathers have served as Karnataka's Chief Ministers in the past.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.