Gamma Ray Bursts

CLIENT

Deutsches Elektronen-Synchrotron DESY

RESEARCH FIELD

TYPE

Animation

YEAR

2021

DESCRIPTION

This film illustrates the event, catalogued as GRB 190829A according to its date of occurrence, which turned out to be one of the nearest gamma-ray bursts observed so far, with a distance of about one billion lightyears.

Somewhere in a distant galaxy, a massive dying star collapses and a neutron star or black hole forms. Relativistic jets break out of the collapsing star, and a supernova is produced. The jet ploughs through the surrounding gas sweeping up particles. Some particles scatter on magnetic fields around the blast wave and are accelerated. The accelerated electrons emit high energy photons in the X-ray and gamma-ray regime at every deflection. This emission is called synchrotron radiation. Relativistic beaming occurs in the jet direction. When looking exactly down a jet, the event becomes visible as a gamma-ray burst (GRB).

Roughly 900 million years later, radiation from this gamma-ray burst arrives at Earth and is detected by satellites and telescopes as GRB 190829A. High-energy photons hitting Earth's atmosphere produce particle showers that emit so-called Cherenkov light for a couple of nanoseconds. This glow can be detected by telescopes such as H.E.S.S. This way, H.E.S.S. could follow GRB 190829A for three nights in a row in unprecedented detail.

Still_01
Still_02
Still_03

More projects

HorizonProject type

TransformationsProject type

Vela PulsarProject type

IceCube AR CardProject type

Who were the vikings?Project type

Meet the MetaorganismProject type

KalderaProject type

Viking WalksProject type

HIBEF LaserProject type

Icon PostersProject type

Radio pulsationProject type

Ventus: Wind on RoadsProject type

Nanoparticle at workProject type

DAK Congress 2020coming soon

Explore the OceanProject type

Marine MicrobiologyProject type

Digital MetaProject type

Dynamic PlanetProject type

TsunamiProject type

GenexpressionsProject type

Lymphatic SystemProject type