Science118 supernova superbubbles reportedly found in Andromeda
A science news account says the bubbles’ kinetic-energy input matches the rate at which turbulence loses energy across Andromeda’s disk.
TLDR
A science news account says FAST and the VLA mapped atomic hydrogen across Andromeda and found 118 supernova superbubbles, some as old as 40 million years. Their kinetic-energy injection rate reportedly matches the turbulence dissipation rate from the same map, both in magnitude and across the galaxy’s disk.
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118 supernova superbubbles reportedly found in Andromeda
A science news account says the bubbles’ kinetic-energy input matches the rate at which turbulence loses energy across Andromeda’s disk.
TLDR
A science news account says FAST and the VLA mapped atomic hydrogen across Andromeda and found 118 supernova superbubbles, some as old as 40 million years. Their kinetic-energy injection rate reportedly matches the turbulence dissipation rate from the same map, both in magnitude and across the galaxy’s disk.