... physical processes that can form an HI ring as is observed in Holmberg~I. Three energetic mechanisms are considered: multiple supernova explosions (SNe), a hypernova explosion associated with a gamma ray burst (GRB), and the vertical impact of a high ...
... mechanisms are considered: multiple supernova explosions (SNe), a hypernova ... interstellar medium and include multiple supernova explosions (Mac Low & McCray 1988 ... of Holmberg I (Ho I) can be produced by multiple supernova explosions (SNe ...
... I have numerically demonstrated that such processes as multiple supernova explosions, gamma-ray bursts, and high-velocity cloud collisions create different observable signatures which can be used to pinpoint the cause · 2 of ring-shaped structures in the ...