The Large Zenith Telescope: Redshifts and Physical Parameters of Faint Objects from a Principal Component Analysis
Astrophysics
2007-05-23 v2
Abstract
The future Large Zenith Telescope Survey will provide a catalog of spectrophotometric energy distributions (40 filters) of ~10^6 objects. In this paper, we shows that the principal component analysis is efficient to separate stars, galaxies and QSOs. Realistic simulations are performed to assess quantitatively the efficiency of the method. Redshifts can be evaluated to sigmaz~0.02 for z<0.5 and sigmaz~0.05 for 0.5<z<1.5.
Keywords
Cite
@article{arxiv.astro-ph/9910317,
title = {The Large Zenith Telescope: Redshifts and Physical Parameters of Faint Objects from a Principal Component Analysis},
author = {Remi A. Cabanac and Valerie de Lapparent},
journal= {arXiv preprint arXiv:astro-ph/9910317},
year = {2007}
}
Comments
Minor typo in a cited ref., 2 pages, Latex newpasp.sty, to appear in ASP conf. ser. of the IGRAP meeting "Clustering at High Redshift), ed. A Mazure, O. Lefevre (Marseilles, July 1999)