Is a supernova powerful to destroy the other star in a binary system?

So, you have the big bad race, whose extermination method is basically to force stars to go supercritical via the power of handwavium. You can assume 1 solar mass for each, but you can change it if you like.

The first scenario would be:

• Star A of the binary swells to red giant status, and then is either touching or consumes star B: what would happen?

Scenario 2:

• Star A goes supernova, with maybe 1 AU of distance between it and Star B.

What info Id like to know:

• Can it destroy the other star via supernova?
• What is the effective range of the supernova, and can it destroy stars a light year or more away?

(Asked on astronomy: https://astronomy.stackexchange.com/questions/25895/is-a-supernova-powerful-enough-to-destroy-the-other-star-in-a-binary-system)

posted about 6 years ago

Raznarok‭

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