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  1. Overview

    A pulsar (from puls(ating st)ar, on the model of quasar) is a highly magnetized rotating neutron star that emits b… 展开

    Pulsar - Wikipedia

    • The more massive star explodes first, leaving behind a neutron star. If the explosion does not kick the second star away, the binary system survives. The neutron star can now be visible as a radio pulsar, and it slowly loses energy and spins down. Later, the second star can swell up, allowing the neutron star to suck up its matter.… 展开

    它们如何工作以及为什么重要
    它们如何工作以及为什么重要
    想象一下,一颗恒星以每秒数百次的速度旋转,发出强大的辐射束,像宇宙灯塔一样扫过天空。这是一颗脉冲星,一种发出规则的光脉冲和无线电波的中子星。
    History of observation

    Signals from the first discovered pulsar were initially observed by Jocelyn Bell while analyzing data recorded on August 6, 1967, from a newly commissioned radio telescope that she helped build. Initially dismissed as radio interference by … 展开

    Pulsar-like white dwarfs

    White dwarfs can also act as pulsars. Because the moment of inertia of a white dwarf is much higher than that of a neutron star, the white-dwarf pulsars rotate once every several minutes, far slower than neutron-star puls… 展开

    Nomenclature

    Initially pulsars were named with letters of the discovering observatory followed by their right ascension (e.g. CP 1919). As more pulsars were discovered, the letter code became unwieldy, and so the convention then … 展开

    Formation, mechanism, turn off

    The events leading to the formation of a pulsar begin when the core of a massive star is compressed during a supernova, which collapses into a neutron star. The neutron star retains most of its angular momentum, … 展开

    Categories

    Three distinct classes of pulsars are currently known to astronomers, according to the source of the power of the electromagnetic radiation:
    • rotation-powered pulsars, where the loss of rotational ener… 展开

    Applications

    The discovery of pulsars allowed astronomers to study an object never observed before, the neutron star. This kind of object is the only place where the behavior of matter at nuclear density can be observed (thoug… 展开