“Hubble–Reynolds law”的意思、由来-开放百科全书

词条

Hubble–Reynolds law

释义

References

{{dablink|Not to be confused with Hubble's law which relates galaxy redshifts and distances.}}{{Use dmy dates|date=July 2012}}{{refimprove|date=September 2017}}

The Hubble–Reynolds law models the surface brightness of elliptical galaxies as

Where is the surface brightness at radius , is the central brightness, and is the radius at which the surface brightness is diminished by a factor of 1/4. It is asymptotically similar to the De Vaucouleurs' law which is a special case of the Sersic profile for elliptical galaxies.^[1]

The law is named for the astronomers Edwin Hubble and John Henry Reynolds.

References

1. ^Binney & Tremaine. Galactic Dynamics 2008.

1 : Astrophysics

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