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The absorption line spectrum of the QSO J2233-606
P J Outram, B J Boyle, R F Carswell +3
We report on high resolution observations (R=35000) of the Hubble Deep Field South QSO J2233-606 obtained with the University College London Echelle Spectrograph at the AAT. We pre…
Limits on the star formation rates of z>2 damped Ly-alpha systems from H-alpha spectroscopy
Andrew J. Bunker, Stephen J. Warren, D. L. Clements +2
We present the results of a long-slit K-band spectroscopic search with CGS4 on UKIRT for H-alpha emission from the objects responsible for high-redshift (z > 2) damped Ly-alpha abs…
How to find MACHOs in the Virgo Cluster
Helen Tadros, Stephen Warren, Paul Hewett
We discuss the feasibility of finding extra-galactic MACHOs by monitoring quasars behind the Virgo cluster of galaxies. We show that with only a modest observing programme one coul…
Spectroscopy of the optical Einstein ring 0047-2808
S. J. Warren, A. Iovino, P. C. Hewett +1
We present optical and near-infrared spectroscopic observations of the optical Einstein ring 0047-2808. We detect both [OIII] lines 4959, 5007 near 2.3 micron, confirming the redsh…