Direct determination of quasar redshifts
Astrophysics
2009-11-07 v1
Abstract
We present observations of 11 quasars, selected in the range z = 2.2-4.1, obtained with ESA's Superconducting Tunnel Junction (STJ) camera on the WHT. Using a single template quasar spectrum, we show that we can determine the redshifts of these objects to about 1%. A follow-up spectroscopic observation of one QSO for which our best-fit redshift (z = 2.976) differs significantly from the tentative literature value (z ~ 2.30) confirms that the latter was incorrect.
Keywords
Cite
@article{arxiv.astro-ph/0111476,
title = {Direct determination of quasar redshifts},
author = {Jos de Bruijne and Alastair Reynolds and Michael Perryman and Anthony Peacock and Fabio Favata and Nicola Rando and Didier Martin and Peter Verhoeve and Norbert Christlieb},
journal= {arXiv preprint arXiv:astro-ph/0111476},
year = {2009}
}
Comments
4 pages, 3 figures; uses aa.cls, psfig.sty, natbib.sty; accepted for publication in A&A Letters