•Stars
pass “through” each other, but orbits around galaxy disrupted
•
•Gas
clouds collide
–Gas
stripped away from stars
–Collisions
cause bursts of star formation
–
•Ellipticals
may be those galaxies which have suffered collisions
•Spirals may be those galaxies which
have not suffered collisions
•
•Joshua Barnes (Hawaii) and the Space Telescope
Science Institute provide a
simulations of galaxy mergers.
Barnes website: