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Eddington limit
In physics, the Eddington Limit is a natural limit to the luminosity that can be radiated by spherically symmetric accretion onto a compact object, like a black hole. It is named in honour of the British physicist Sir Arthur Eddington.
If luminosity exceeds the Eddington limit, there would be so much radiation pressure that the surrounding gas is pushed outward rather than inward. Without gas to provide energy, the luminosity naturally decreases to the Eddington limit where gas is pushed inward again.
The Eddington limit is a function of the mass of the accreting object:
where
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details