[填空题]
Suppose a star the size of our Sun, but with mass 8.0 times as great, wer (x(eh g1rra(xe rotatrh(1(ex a(xr gkflln2 )o3,v,ml/ oiuing at a speed of 1.0 revolution every 12 days. If it were to undergo gravitational collapse to a neutron star of radius 11,3o) i /,2fvolnlml ku km, losing three-quarters of its mass in the process, what would its rotation speed be? Assume that the star is a uniform sphere at all times, and that the lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
