Origin of ‘ghost particle’ traced to distant black hole

Washington, July 13 (IANS) For the first time, scientists have found the source of a high-energy ghostly particle, known as neutrino, that travelled 3.7 billion years at almost the speed of light to reach Earth.

Using NASA’s Fermi Gamma-ray space telescope, scientists traced the path of this hard-to-catch particle to a blast of gamma-ray light from a distant supermassive black hole in the constellation Orion.

Scientists believe that high-energy neutrinos are created by the most powerful events in the cosmos, such as galaxy mergers and material falling onto supermassive black holes.

They travel at speeds just shy of the speed of light and rarely interact with other matter, allowing them to travel unimpeded across distances of billions of light-years.

The findings detailed in the journal Science marked the detection of the source of such a particle for the first time.

“Again, Fermi has helped make another giant leap in a growing field we call multimessenger astronomy,” said Paul Hertz, Director of the Astrophysics Division at NASA Headquarters in Washington.

“Neutrinos and gravitational waves deliver new kinds of information about the most extreme environments in the universe. But to best understand what they’re telling us, we need to connect them to the ‘messenger’ astronomers know best – light,” Hertz added.

The neutrino was discovered last year in Antarctica by an international team of scientists using the US National Science Foundation’s IceCube Neutrino Observatory.

It hit the Antarctic ice with the energy of about 300 trillion electron volts — more than 45 times the energy achievable in the most powerful particle accelerator on Earth.

This high energy strongly suggested that the neutrino had to be from beyond our solar system.

Backtracking the path through IceCube indicated where in the sky the neutrino came from, and automated alerts notified astronomers around the globe to search this region for flares or outbursts that could be associated with the event.

Data from Fermi revealed enhanced gamma-ray emission from a well-known active galaxy at the time the neutrino arrived.

This is a type of active galaxy called a blazar, with a supermassive black hole with millions to billions of times the Sun’s mass that blasts jets of particles outward in opposite directions at nearly the speed of light.

Blazars are especially bright and active because one of these jets happens to point almost directly toward Earth.

Fermi scientist Yasuyuki Tanaka at Hiroshima University in Japan was the first to associate the neutrino event with the blazar designated TXS 0506+056 (TXS 0506 for short), NASA said.

“The most extreme cosmic explosions produce gravitational waves, and the most extreme cosmic accelerators produce high-energy neutrinos and cosmic rays,” said Regina Caputo of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

“Through Fermi, gamma rays are providing a bridge to each of these new cosmic signals,” Caputo said.

(IANS)

K’taka town tense as abusive post on Shivaji surfaces

Vijayapura (K'taka):  Following the abusive post on historical figure Shivaji, Karnataka town has become tense as Hindu organisations have called for a protest condemning the post on Tuesday in Vijayapura...

Rahul, Priyanka pay obeisance at Mata Kheer Bhawani temple in J&K’s Ganderbal

Srinagar:  Congress leaders Rahul Gandhi and Priyanka Gandhi on Tuesday paid obeisance at the Mata Kheer Bhawani temple in Jammu & Kashmir's Ganderbal district. The siblings arrived in Tullamulla town...

Iran, S Arabia to resume talks on normalising ties soon

Tehran: The Iranian Foreign Minister Hossein Amir-Abdollahian has said that Iran and Saudi Arabia are expected to resume talks on normalising ties soon, the official news agency IRNA reported. Amir-Abdollahian...

UP man smashes aunt’s head for refusing to fund his Ladakh trip

Bulandshahr (Uttar Pradesh):  A 22-year-old man smashed his aunt's head with a hammer and left her to die simply because she did not give him money and her car for...

44 killed as bus falls into ravine in Pakistan

Islamabad: At least 44 people were killed a when a bus they were travelling in fell into a ravine in Pakistan's Lasbela district on Sunday. The vehicle carrying 48 passengers...

Pathaan’ is unstoppable, collects Rs 429 crore worldwide in 4 days

Mumbai: Bollywood superstar Shah Rukh Khan's latest release "Pathaan" is emerging as an unstoppable force at the global box office. The film, directed by Siddharth Raaj Anand, has earned Rs...

10 children killed as boat capsizes in Pakistan

Islamabad :Ten children were killed when a boat capsized in a dam in Pakistan's Khyber Pakhtunkhwa province on Sunday, an official said. The boat with 25 children onboard capsized in...

Rajinikanth issues public notice on rights infringement, warns of legal action

Chennai: South Indian Superstar Rajinikanth has issued a public notice on the infringement of rights, and warned of legal action against those who commercially exploit the actor's name, image, voice,...

H-1B registrations for 2024 to open from March 1

New York:  The initial registration period for the 2024 H-1B visas for skilled professionals will open from March 1 to March 17, the U.S. Citizenship and Immigration Services (USCIS) announced....

Pakistan Finance Minister seeks divine intervention to rescue sinking economy

Islamabad:  As the Pakistan government struggles to arrest the worsening economic crisis, Finance Minister Ishaq Dar sought to allay concerns by invoking divine favour, saying that the country was the...

Women should give birth to child between 22 and 30 years of age: Assam CM

Guwahati:  Assam Chief Minister Himanta Biswa Sarma on Saturday said that women should give birth to children before they attain 30 years of age. Sarma was speaking at a function...

BBC docu screening: Several students detained at DU, CrPC Sec 144 imposed

New Delhi: The Delhi police has detained 24 students and imposed section 144 prohibiting gatherings outside the Faculty of Arts at Delhi University after scores of students gathered there to...

Read Previous

World:Trump tries to ease tensions with May after incendiary interview

Read Next

Defence: S-400 missile deal with Russia ‘almost’ ready despite US sanctions

Leave a Reply

Your email address will not be published.

WP2Social Auto Publish Powered By : XYZScripts.com