astronomywords
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| neutron star | a small highly dense star composed almost entirely of highly packed neurtons
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| pulsar | a source of short precisely time radio bursts. Believed to be a spinning neutron star
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| lighthouse model | the explanation of a pulsar as a spinning neutron star sweeping beems of radior radiation
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| pulsar wind | the flow of high energy particles that carries most of the energy in a spinning neutron star
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| glitch | sudden change in a period of a pulsar
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| magneter | class of neutron stars that have exceedingly strong magnetic fields
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| millisecond | a pulsar with a period of a millisecond
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| gravitational radiation | as predicted by general relativity expanding waves in a gravitational field that transport energy through space
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| singularity | the object of zero radius into which the matter in a black hole is believed to fall
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| black hole | a mass that has collapsed to such a small volume that its gravitational strength prevents the escape of all radiation.
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| event horizon | the boundary of the region of a black hole from which no radiation may escape
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| Schwarzchild radius | the radius of the event horizon around a blackhole
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| Kerr black hole | solution to equations of general relativity that describes properties of rotation around a black hole
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| ergosphere | the region surrounding a rotating black hole when it could not resist being dragged around a black hole
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| time dilation | slowing of moving clocks or clocks in a strong gravitational field
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| gravitational redshift | the lengthening of the wavelength of a photon due to its escape from gravitational field
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| x ray burster | an object that produces repeated bursts of xrays
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| quasi periodic oscillations | a high speed flickering in the radiation from an accretion disk spiralling inward
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| gamma ray burster | an object that produces a sudden burst of gamma rays
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| soft gamma ray repeater | object that produces repeated bursts of lower energy gamma rays
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| hypernova | the explosion produced as a very massive star collapses into a black hole
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Created by:
tmckee
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