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.
Agencies
July 28,2020

New Delhi, Jul 28: Chief Minister Ashok Gehlot had "unconstitutionally" merged six MLAs of the Bahujan Samaj Party (BSP) with the Congress in Rajasthan, he did the same in his earlier tenure too, for which we wanted to teach him and his party a lesson, said BSP chief Mayawati on Tuesday.

The BSP chief added that her party could have gone to courts earlier but decided to wait for the "right opportunity".

"In Rajasthan, after elections results, BSP gave unconditional support of all its 6 MLAs to Congress. Unfortunately, Chief Minister Ashok Gehlot, out of his malicious intent and to damage BSP, merged them with Congress unconstitutionally. He did the same even during his earlier tenure," Mayawati said here.

"BSP could have gone to the court earlier too but we were looking for the time to teach Congress party and CM Ashok Gehlot a lesson. Now we have decided to go to the Court. We will not let this matter alone. We will go even to the Supreme Court," she added.

The BSP chief further reiterated that the party has asked the six MLAs to vote against the Congress government led by Ashok Gehlot if a trust vote takes place on the floor of the Rajasthan Assembly, failing which "their party membership will be cancelled".
She further said that the merger of BSP MLAs with Congress was immoral and went against the mandate given by voters in Rajasthan.
"Ulta-chor kotwal ko daante (the thief accuses the cop of wrongs) they (Congress) themselves indulge in wrongdoing and then accuse us," she further said.
On Sunday, the BSP issued a whip to six MLAs, asking them to vote against Congress in case of a no-confidence motion or any proceedings to be held during the Rajasthan Assembly session.

National General Secretary of BSP Satish Chandra Mishra, while speaking to news agecncy said, "Notices have been issued to the six MLAs separately as well as collectively, pointing out that since BSP is a National Party, there cannot be any merger at the state level at the instance of six MLAs unless there is a merger of BSP at the national level. If they violate it, they will be disqualified.

Notices have been issued to all six MLAs- - R Gudha, Lakhan Singh, Deep Chand, JS Awana, Sandeep Kumar and Wajib Ali, who are elected to the Rajasthan Assembly."
However, later on Monday, Lakhan Singh, hit back saying he and the five others had already joined the Congress.

"We six MLAs have already joined the Congress. BSP remembered us after nine months. They have issued this whip, after a message from the BJP. On this basis they are going to court", said Karauli MLA Lakhan Singh.

Rajasthan government is in turmoil after simmering differences between Deputy Chief Minister Sachin Pilot and Gehlot came out in the open. Pilot was removed as the Deputy Chief Minister and the state unit chief of Congress.

The Congress has accused the BJP of indulging in horse-trading to bring down the Gehlot government. The BJP has rejected the allegations.

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
June 3,2020

New Delhi, Jun 3: India registered its highest single-day spike in COVID-19 cases on Wednesday with 8,909 more cases reported in the last 24 hours, taking the country's tally to 2,07,615, while the death toll rose to 5,815 according to the Union Health and Family Welfare Ministry.

The number of active COVID-19 cases stood to 1,01,497 while 1,00,303 people have been cured/discharged/migrated.

According to the Union Health and Family Welfare Ministry, out of all the states, Maharashtra has recorded the highest number of coronavirus cases with 72,300 patients followed by Tamil Nadu with 24,586 cases.

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.
Agencies
March 10,2020

Bhopal, Mar 10: The number of MLAs who have resigned from the Congress in Madhya Pradesh climbed to 20 on Tuesday afternoon with another legislator quitting the ruling party, sources said.

While 19 MLAs, most of them believed to be loyal to expelled party leader Jyotiraditya Scindia, have sent their resignation letters via e-mail to Raj Bhavan, Bisahulal Singh submitted his resignation letter as an MLA to the Assembly speaker.

"We have received resignations of 19 MLAs through e-mails with attachments," a Raj Bhawan official told PTI.

Sources in Congress produced a copy of Bisahulal Singh's resignation letter which he submitted to the speaker.

Former chief minister and senior BJP leader later announced that Singh (65) has joined the BJP.

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.