This article needs additional citations for verification. Please help improve this articlebyadding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Hubble–Reynolds law" – news · newspapers · books · scholar · JSTOR (September 2017) (Learn how and when to remove this message) |
The Hubble–Reynolds law models the surface brightnessofelliptical galaxiesas
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. It was first formulated by Reynolds in 1913[2] from his observations of galaxies (then still known as nebulae). It was later re-derived by Hubble in 1930[3] specifically in observations of elliptical galaxies.
This astrophysics-related article is a stub. You can help Wikipedia by expanding it. |