Any of several celestial radio sources emitting short, intense bursts of radio waves, x-rays, or visible electromagnetic radiation at regular intervals, generally believed to be rotating neutron stars.

• 脉冲星若干能发出无线电波的天体之一，能以有规律的间隔发出短促且强烈的无线电波、X射线或肉眼可见的电磁放射，普遍认为它们是旋转磁中子星