Page 16 - Zeuthen News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Stay updated with breaking news from Zeuthen. Get real-time updates on events, politics, business, and more. Visit us for reliable news and exclusive interviews.

Top News In Zeuthen Today - Breaking & Trending Today

Ghost particle from shredded star reveals cosmic particle accelerator


 E-Mail
IMAGE: Smoking gun: After the supermassive black hole tore the star apart, roughly half of the star debris was flung back out into space, while the remainder formed a glowing accretion.
view more 
Credit: Credit: DESY, Science Communication Lab
Tracing back a ghostly particle to a shredded star, scientists have uncovered a gigantic cosmic particle accelerator. The subatomic particle, called a neutrino, was hurled towards Earth after the doomed star came too close to the supermassive black hole at the centre of its home galaxy and was ripped apart by the black hole s colossal gravity. It is the first particle that can be traced back to such a tidal disruption event (TDE) and provides evidence that these little understood cosmic catastrophes can be powerful natural particle accelerators, as the team led by DESY scientist Robert Stein reports in the journal ....

Hale Telescope , United States , Nordrhein Westfalen , Sjoert Van Velzen , Marek Kowalski , Cecilia Lunardini , Anna Franckowiak , Robert Stein , Mount Palomar , Francis Halzen , Karlg Jansky , Humboldt University , German Federal Ministry Of Education , Arizona State University , University Of Bochum , Us Antarctic Program , University Of Wisconsin , Helmholtz Association , Spectral Energy Distribution Machine , Mission Xmm Newton , Us National Science Foundation , Zwicky Transient Facility , South Pole , Large Hadron Collider , Walter Winter , Zwicky Transient ,

NASA's Swift helps tie neutrino to star-shredding black hole


 E-Mail
IMAGE: The Zwicky Transient Facility captured this snapshot of tidal disruption event AT2019dsg, circled, on Oct. 19, 2019.
view more 
Credit: ZTF/Caltech Optical Observatories
For only the second time, astronomers have linked an elusive particle called a high-energy neutrino to an object outside our galaxy. Using ground- and space-based facilities, including NASA s Neil Gehrels Swift Observatory, they traced the neutrino to a black hole tearing apart a star, a rare cataclysmic occurrence called a tidal disruption event.
Astrophysicists have long theorized that tidal disruptions could produce high-energy neutrinos, but this is the first time we ve actually been able to connect them with observational evidence, said Robert Stein, a doctoral student at the German Electron-Synchrotron (DESY) research center in Zeuthen, Germany, and Humboldt University in Berlin. But it seems like this particular event, called AT2019dsg, didn t generate the neu ....

United Kingdom , United States , Goddard Space Flight Center , New Mexico , Los Alamos National Laboratory , Robert Stein , Jeanette Kazmierczak , Sjoert Van Velzen , S Bradley Cenko , Cecilia Lunardini , National Science Foundation Icecube Neutrino Observatory , University Of Leicester , Humboldt University , Leiden University , Mullard Space Science Laboratory , European Space Agency Xmm Newton , Arizona State University In Tempe , Italian Space Agency , Gehrels Swift Observatory , German Electron Synchrotron , Nature Astronomy , Zwicky Transient Facility , Palomar Observatory , European Space Agency , National Radio Astronomy Observatory , Very Large Array ,