2 papers
astro-ph2002
Galaxy spectral parameterisation in the 2dF Galaxy Redshift Survey as a diagnostic of star formation history
Darren Madgwick, Rachel Somerville, Ofer Lahav +1
We investigate the physical significance of a new spectral parameter, eta. This parameter was defined using a Principal Component Analysis of the 2dF Galaxy Redshift Survey, to ret…
astro-ph2000
Objective Classification of Galaxy Spectra using the Information Bottleneck Method
N. Slonim, R. Somerville, N. Tishby +1
A new method for classification of galaxy spectra is presented, based on a recently introduced information theoretical principle, the `Information Bottleneck'. For any desired numb…