脉冲星为何会发出规律的射电脉冲？
Why does a pulsar emit regular radio pulses?
高速自转使磁轴偏离自转轴，磁极区的加速带电粒子发出定向辐射束，每转一圈就扫过地球一次，于是我们接收到周期性的脉冲信号。
Fast rotation tilts the magnetic axis from the spin axis, so the beam of radiation from the magnetic poles sweeps past Earth once per turn, giving the periodic pulses we detect.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Carroll & Ostlie,《An Introduction to Modern Astrophysics》第2版,Cambridge University Press,2017
B. W. Carroll and D. A. Ostlie, An Introduction to Modern Astrophysics, 2nd ed., Cambridge University Press, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-1-108-42216-1 (2nd ed., Cambridge Univ. Press)
#脉冲星 #辐射束 #自转
脉冲星和诺贝尔经常提到的中子星是什么关系？
How are pulsars related to neutron stars?
脉冲星就是快速自转的中子星，磁极发射的射电束随自转扫过地球，像灯塔一样产生规律脉冲，周期可精确至毫秒。
A pulsar is a rapidly spinning neutron star whose magnetic poles emit radio beams that sweep past Earth like a lighthouse, producing regular pulses timed to milliseconds.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Carroll & Ostlie,《An Introduction to Modern Astrophysics》第2版,Cambridge University Press,2017
B. W. Carroll and D. A. Ostlie, An Introduction to Modern Astrophysics, 2nd ed., Cambridge University Press, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-1-108-42216-1 (2nd ed., Cambridge Univ. Press)
#脉冲星 #中子星 #射电