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14 Cards in this Set
- Front
- Back
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Pulsar |
A source of short, precisely timed radio bursts believed to be spinning neutron stars |
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Light House Model |
The explanation of a pulsar as a spinning neutron star sweeping beams of electromagnetic radiation around the sky |
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Pulsar Wind |
The breeze of high energy particles flowing away from a spinning neutron star |
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Gravitational Radiation |
Disturbances in a gravitational field traveling at the velocity of light and carrying energy away from an object with a rapidly changing mass distribution |
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Millisecond Pulsar |
A pulsar with a pulse period of only a few milliseconds |
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X-ray bursters |
An object that produces repeated bursts of X-rays |
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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 gravity prevents the escape of all radiation.
--The volume of space from which radiation may not escape |
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Event Horizon |
--The boundary of a region in a black hole from which no radiation may escape.
--No event that occurs within an Event Horizon is visible to a distant viewer |
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Schwarzschild Radius (Rs) |
The radius of the event horizon around a black hole |
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Time Dilation |
The slowing of moving clocks, or clocks in strong gravitational fields |
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Gravitational Redshift |
The lengthening of the wavelength of a photon due to its escape from a gravitational field |
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Gamma-ray Bursts |
A sudden, powerful burst of gamma rays |
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Hypernova |
--Produced when a very small massive star collapses into a black hole
--Thought to be a possible source of Gamma-ray bursts |
