A very high signal to noise spectrum towards mu-Col using UVES

"I describe observations using UVES towards a bright early type star mu Col with mV=5.18. The aim was to obtain a very high signal to noise (S\/N) spectrum in order to probe the interstellar medium. Image slicer #1 was employed with a 0.7 arcsecond slit to achieve a spectral resolution of 60,000. Reduction was performed using the standard UVES pipeline. A total of 1200 spectra were combined in the 346+580 wavelength setting to produce a spectrum with S\/N approaching 10,000 in some wavelength regions. I will discuss the issues encountered with the data reduction and some brief science results."