Pulsar Spin
Definition
Pulsar Spin is how fast a newborn neutron star turns: a collapsing core keeps its angular momentum, so its period falls as the square of its radius, and a core turning once a day that shrinks to ten kilometres turns hundreds of times a second, sweeping its beams round the sky as a pulsar.
The spin it keeps is the tidal spin every clump gathers, carried down to the smallest thing a star can leave.
Formally, P_ns = P_c ยท (R_ns / R_c)ยฒ, where P_ns [๐] is the neutron star's period, P_c [๐] the core's period before collapse, R_ns [๐] the neutron star's radius and R_c [๐] the core's radius: [๐] = [๐].
It connects to Giant Phase, Halo Spin Parameter and Stellar Null Well.
Mathematical Expression
P_ns = P_c ยท (R_ns / R_c)ยฒ
Technical Details
Category: Manuscript
Chapter: Chapter 2
Importance Level: