Magnetar Giant Flare Produces Gamma Rays
Astronomers explain the observations of GRB 200415A with the sequence of events illustrated here. A magnetar is a city-sized ball containing more mass than the Sun that boasts the strongest magnetic fields known. A sudden reconfiguration of this field, possibly caused by a starquake, produced a quick, powerful pulse of X-rays and gamma rays (magenta). The event also ejected a blob of matter that followed this pulse, but moved slightly slower, at about 99% the speed of light. After a few days, they both reached the boundary, called a bow shock, where interstellar piles up. Light from the flare passes through, followed many seconds later by the fast-moving cloud of ejected particles. The cloud interacts with gas at the bow shock, creating shock waves that accelerate particles, which produce the highest-energy gamma rays detected by NASA's Fermi mission.
Read more: https://www.nasa.gov/feature/goddard/2021/nasa-missions-unmask-magnetar-eruptions-in-nearby-galaxies
Music credit: "Collision Course" from Universal Production Music
Video credit: NASA’s Goddard Space Flight Center/Chris Smith (USRA/GESTAR)
Scott Wiessinger (USRA): Lead Producer
Francis Reddy (University of Maryland College Park): Lead Science Writer
Chris Smith (USRA): Animator
Scott Wiessinger (USRA): Editor
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Видео Magnetar Giant Flare Produces Gamma Rays канала NASA Video
Read more: https://www.nasa.gov/feature/goddard/2021/nasa-missions-unmask-magnetar-eruptions-in-nearby-galaxies
Music credit: "Collision Course" from Universal Production Music
Video credit: NASA’s Goddard Space Flight Center/Chris Smith (USRA/GESTAR)
Scott Wiessinger (USRA): Lead Producer
Francis Reddy (University of Maryland College Park): Lead Science Writer
Chris Smith (USRA): Animator
Scott Wiessinger (USRA): Editor
This video is public domain and along with other supporting visualizations can be downloaded from NASA Goddard's Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/13792
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard
Follow NASA’s Goddard Space Flight Center
· Instagram http://www.instagram.com/nasagoddard
· Twitter http://twitter.com/NASAGoddard
· Twitter http://twitter.com/NASAGoddardPix
· Facebook: http://www.facebook.com/NASAGoddard
· Flickr http://www.flickr.com/photos/gsfc
Видео Magnetar Giant Flare Produces Gamma Rays канала NASA Video
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