What would happen if a rogue neutron star collided with our sun?

What would happen if a rogue neutron star (average size) traveling at 1% of speed of light collided with our sun?





Would it go straight through? Would it cause a supernova?|||Yes, it would go through. The total column of solar material it encountered in its few square kilometers of cross section would be tiny compared to its mass. In the few seconds it would take to go through, it would not accrete much mass, but its surface would be many, many millions of degrees when it came out the other side. It would radiate copiously in gamma rays, enough to sterilize the planets.





It might cause a supernova if it got stuck inside the sun, but that won't happen. My guess is that it wouldn't actually do much long-term damage to the Sun. It would wreck havoc with the planets, however.|||My guess is it would either go through or at least get stuck somewhere inside of the sun since the neutron star is so much more dense that our sun. The B field might come largely into play since they are so great in Neutron stars. It would be unlikely to go nova. The mechanism for supernova (while unknown) is very much correlated to the halt of fusion reactions in most stars, which would not occur simply because something collided into the star.