Super Nova. the before and after effects

[north]

when a Type I or Type II star explodes, it leaves in some cases a neutron star. now apparently supernovae, 1987A is the most studied supernovae so my question is this;

we see the ramifications of the supernovae explosion as an energy cloud so to speak, that is moving towards us. but what does this explosion DO to stars and/or systems that are closer,much closer, than us,to this explosion,to the side, behind,above and below too the supernovae its self?

Nereid when you asked me what would i observe,if given the chance, i changed my mind, what i would like to observe is the before and after, of space and systems that are much more local to the supernovae and the changes that they go through. or is there any observations of the before and after, of any region of space that supernovaes have occured? if so what are they?

[Ken G]

The impact should be totally minimal on anthing but very diffuse regions of gas and dust, which are reshaped into what is called a supernova remnant, or a plerion if it is energized by a neutron star. This can also induce new star formation, but will have no impact on stellar systems that already exist. Could be trouble for living things on the surface of planets, though.