I read in a German news magazine (Der Spiegel) that there appear to be a number of stars located outside of galaxies. How is this possible if stars are only born in galaxies or globular clusters?
One often observes galaxies which are interacting with each other via tidal forces. This happens when two galaxies pass near to each other, or undergo a glancing collision. The effect of such interactions is to draw out long streamers of stars and gas from the main body of the galaxy. This process casts the material off into intergalactic space at high enough speeds so that it never returns to the parent galaxy. Thus, one would expect galaxy-galaxy interactions to supply the intergalactic medium with stars and gas. Therefore it is not surprising to find stars in intergalactic space, where they do not appear to have an association with any nearby galaxy. John Cannizzo C. Allie Hajian for “Ask a High-Energy Astronomer” QUESTION: It’s probably a really easy question (its just for curiosity’s sake), but how far away, in light years, is the furthest star visible from the earth? (by any means possible). The name of this star is not important. Do you think there are stars in the outer regions
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