File:NASA's Fermi Links Cosmic Neutrino to Monster Black Hole.webm
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DescriptionNASA's Fermi Links Cosmic Neutrino to Monster Black Hole.webm |
English: The discovery of a high-energy neutrino on Sept. 22, 2017, sent astronomers on a chase to locate its source -- a supermassive black hole in a distant galaxy. Watch to learn more.
For the first time ever, scientists using NASA’s Fermi Gamma-ray Space Telescope have found the source of a high-energy neutrino from outside our galaxy. This neutrino travelled 3.7 billion years at nearly light speed before being detected on Earth -- farther than any other neutrino we know the origin of. High-energy neutrinos are hard-to-catch particles that scientists think are created by the most powerful events in the cosmos, like galaxy mergers and material falling onto supermassive black holes. They travel a whisker shy of the speed of light and rarely interact with other matter, so they can travel unimpeded across billions of light-years. On Sept. 22, 2017, the IceCube Neutrino Observatory at the South Pole detected signs of a neutrino striking the Antarctic ice with an 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’s Large Area Telescope revealed enhanced gamma-ray emission from a well-known active galaxy at the time the neutrino arrived. This active galaxy is a type called a blazar, where a supermassive black hole with millions to billions of times the Sun’s mass that blasts particle jets 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 showed that at the time of the neutrino detection, the blazar TXS 0506+056 was the most active it had been in a decade. The discovery is a giant leap forward in a growing field called multimessenger astronomy, where new cosmic signals like neutrinos and gravitational waves are definitively linked to sources that emit light.Music: "Hidden Tides" from Killer Tracks Uploaded to commons by: User:PantheraLeo1359531. Čeština: Objev vysoce energetického neutrina dne 22. září 2017, jeho zdrojem byla obří černá díra ve vzdálené galaxii.
Deutsch: Die Entdeckung eines hochenergetischen Neutrinos am 22. September 2017 brachte Astronomen auf die Spur zu seiner Quelle – einem supermassereichen Schwarzen Loch in einer fernen Galaxie. Sieh das Viedeo an, um mehr zu erfahren...
Эрзянь: 2017 иень таштамковонь 22 чистэ панжозь ламоэнергиянь Neutrino. Астрономтнэ карась чиннее-искувума, ды вешнеме сонзэ лисьмапрянзо - суперпокш раужо варя васолонь галактикасо. Сене ламо ванты тесэ.
Polski: Odkrycie 22 września 2017 roku neutrina o wysokiej energii skłoniło naukowców do poszukiwania jego źródła, którym okazała się supermasywna czarna dziura położona w odległej galaktyce. Obejrzyj wideo, aby dowiedzieć się więcej. |
Date | |
Source | https://svs.gsfc.nasa.gov/12994 (direct link) |
Author | NASA’s Goddard Space Flight Center |
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This file was selected as the media of the day for 16 January 2020. It was captioned as follows:
English: The discovery of a high-energy neutrino on Sept. 22, 2017, sent astronomers on a chase to locate its source -- a supermassive black hole in a distant galaxy. Watch to learn more.
Other languages
Čeština: Objev vysoce energetického neutrina dne 22. září 2017, jeho zdrojem byla obří černá díra ve vzdálené galaxii. Deutsch: Die Entdeckung eines hochenergetischen Neutrinos am 22. September 2017 brachte Astronomen auf die Spur zu seiner Quelle – einem supermassereichen Schwarzen Loch in einer fernen Galaxie. Sieh das Viedeo an, um mehr zu erfahren... English: The discovery of a high-energy neutrino on Sept. 22, 2017, sent astronomers on a chase to locate its source -- a supermassive black hole in a distant galaxy. Watch to learn more. Эрзянь: 2017 иень таштамковонь 22 чистэ панжозь ламоэнергиянь Neutrino. Астрономтнэ карась чиннее-искувума, ды вешнеме сонзэ лисьмапрянзо - суперпокш раужо варя васолонь галактикасо. Сене ламо ванты тесэ. Polski: Odkrycie 22 września 2017 roku neutrina o wysokiej energii skłoniło naukowców do poszukiwania jego źródła, którym okazała się supermasywna czarna dziura położona w odległej galaktyce. Obejrzyj wideo, aby dowiedzieć się więcej.
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