by APOD Robot » Mon Jul 16, 2018 4:05 am
Neutrino Associated with Distant Blazar Jet
Explanation: With equipment frozen deep into ice beneath Earth's South Pole, humanity appears to have discovered a
neutrino from far across the universe. If confirmed, this would mark the first clear
detection of cosmologically-distant neutrinos and the dawn of an
observed association between energetic neutrinos and
cosmic rays created by powerful jets emanating from blazing quasars (
blazars). Once the Antarctican
IceCube detector measured an energetic neutrino in 2017 September, many of humanity's premier observatories sprang into action to try to identify a counterpart in
light. And they did. An erupting counterpart was pinpointed by high energy observatories including
AGILE,
Fermi,
HAWC,
H.E.S.S.,
INTEGRAL,
NuSTAR,
Swift, and
VERITAS, which found that gamma-ray blazar
TXS 0506+056 was in the right direction and with
gamma-rays from a
flare arriving nearly coincidental in time with the neutrino. Even though this and other
position and time coincidences are statistically strong, astronomers will await other similar neutrino - blazar light associations to be absolutely sure.
Pictured here is an artist's drawing of a
particle jet emanating from a black hole at the center of a blazar.
[url=https://apod.nasa.gov/apod/ap180716.html] [img]https://apod.nasa.gov/apod/calendar/S_180716.jpg[/img] [size=150]Neutrino Associated with Distant Blazar Jet[/size][/url]
[b] Explanation: [/b] With equipment frozen deep into ice beneath Earth's South Pole, humanity appears to have discovered a [url=https://en.wikipedia.org/wiki/Neutrino]neutrino[/url] from far across the universe. If confirmed, this would mark the first clear [url=http://www.sciencemag.org/news/2018/07/ghostly-particle-caught-polar-ice-ushers-new-way-look-universe]detection of cosmologically-distant neutrinos[/url] and the dawn of an [url=http://science.sciencemag.org/content/361/6398/147]observed association[/url] between energetic neutrinos and [url=https://apod.nasa.gov/apod/ap071112.html]cosmic rays[/url] created by powerful jets emanating from blazing quasars ([url=https://en.wikipedia.org/wiki/Blazar]blazars[/url]). Once the Antarctican [url=https://icecube.wisc.edu/]IceCube[/url] detector measured an energetic neutrino in 2017 September, many of humanity's premier observatories sprang into action to try to identify a counterpart in [url=https://science.nasa.gov/ems/01_intro]light[/url]. And they did. An erupting counterpart was pinpointed by high energy observatories including [url=http://agile.rm.iasf.cnr.it/]AGILE[/url], [url=https://fermi.gsfc.nasa.gov/]Fermi[/url], [url=https://www.hawc-observatory.org/]HAWC[/url], [url=https://www.mpi-hd.mpg.de/hfm/HESS/]H.E.S.S.[/url], [url=http://sci.esa.int/integral/]INTEGRAL[/url], [url=https://www.nasa.gov/mission_pages/nustar/main/index.html]NuSTAR[/url], [url=https://swift.gsfc.nasa.gov/]Swift[/url], and [url=https://veritas.sao.arizona.edu/]VERITAS[/url], which found that gamma-ray blazar [url=https://en.wikipedia.org/wiki/TXS_0506_%2B056]TXS 0506+056[/url] was in the right direction and with [url=https://science.nasa.gov/ems/12_gammarays]gamma-rays[/url] from a [url=https://www.nasa.gov/press-release/nasa-s-fermi-traces-source-of-cosmic-neutrino-to-monster-black-hole]flare arriving[/url] nearly coincidental in time with the neutrino. Even though this and other [url=http://science.sciencemag.org/content/early/2018/07/11/science.aat2890]position and time coincidences[/url] are statistically strong, astronomers will await other similar neutrino - blazar light associations to be absolutely sure. [url=http://www.desy.de/news/news_search/index_eng.html?openDirectAnchor=1431&two_columns=0]Pictured here[/url] is an artist's drawing of a [url=http://www.syfy.com/syfywire/news-monster-black-holes-shoot-out-neutrinos-like-cosmic-bullets]particle jet[/url] [url=https://www.forbes.com/sites/startswithabang/2018/07/12/a-cosmic-first-ultra-high-energy-neutrinos-found-from-blazing-galaxies-across-the-universe/]emanating from[/url] a black hole at the center of a blazar.
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