Astrophysics (index)about

Photometric Redshift

(method of estimating redshift without spectroscopy)

Photometric Redshift is an estimate of an object's Redshift using Photometry. The expected appearance of various objects at various redshifts under various Filters (Photometric System) are calculated and compared to observed bodies for a match. Spectroscopic Redshift has become more common with the development of more efficient Spectroscopes.


(measure,EMR,photometry,redshift)
http://en.wikipedia.org/wiki/Photometric_redshift

index