Volume 381, Number 3, JanuaryIII 2002
|Page(s)||L57 - L60|
|Published online||15 January 2002|
Letter to the Editor
Direct determination of quasar redshifts
Astrophysics Division, European Space Agency, ESTEC, Postbus 299, 2200AG Noordwijk, The Netherlands
2 Sterrewacht Leiden, Postbus 9513, 2300RA Leiden, The Netherlands
3 Hamburger Sternwarte, Gojenbergsweg 112, 21029 Hamburg, Germany
Corresponding author: J. H. J. de Bruijne, Jos.de.Bruijne@esa.int
Accepted: 26 November 2001
We present observations of 11 quasars, selected in the range –4.1, obtained with ESA's Superconducting Tunnel Junction (STJ) camera on the WHT. Using a single template QSO 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 () differs significantly from the tentative literature value () confirms that the latter was incorrect.
Key words: instrumentation: detectors / galaxies: distances and redshifts / galaxies: high-redshift / quasars: absorption lines / quasars: emission lines / quasars: general
© ESO, 2002
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