README Template 70.1 ESO Programme ID: 170.D-0010(B) Principal Investigator Name: Norbert Christlieb Principal Investigator E-mail Address: nchristlieb@hs.uni-hamburg.de Principal Investigator Telephone Number: +49-40-42891-4120 Instrument: UVES OPC Priority Class: A OPC Approved Total Execution Time: 25:00 Estimated Total Execution Time (including overheads): 25:00 README File Submission Date: 20 August 2002 Programme Description ===================== General Overview ---------------- The programme consists of UVES observations of a strongly r-process enhanced star, CS29497-004, which was discovered with UT2/UVES in Period 68. We now want to obtain spectra of very high resolution (R=75,000) and S/N (>150 per pixel) of this star, in order to detect the U II 3859.57 Angstroem line. Measurement of the uranium abundance would allow to determine the age of this old halo star, which provides a lower limit to the age of the Universe. We have chosen image slicer #2, and 1x1 pixel binning. The exposure time is splitted between the BLUE 346 and BLUE 437 settings in order to achieve a better wavelength coverage, and in particular, for covering the two strong Th II lines at 4086.521 and 4094.747 Angstroem as well as the many lines of neutron capture elements in the UV. Both settings cover the U II line, so that the S/N at that wavelength will not decrease due to using two settings instead of one. To facilitate cosmic ray removal, and to allow for flexible scheduling, the total exposure time is split into 22 exposures of at most 1h each. There are 18 Observing Blocks for the BLUE 346 setting, and 4 for the BLUE 437 setting. Since sky subtraction is very difficult when an image slicer is used, the moon should be avoided as much as possible. Waiver Request Summary ---------------------- NONE Critical Observing Condition Constraints ---------------------------------------- NONE Time Critical Aspects --------------------- NONE Special Calibration Information ------------------------------- NONE ToO Information --------------- This is not a ToO programme. Pre-Imaging Information ----------------------- No pre-imaging is required for this programme. OB Information ============== List of Science OBs with Associated Finding Charts -------------------------------------------------- Total Number of Submitted Science OBs: 22 Total Number of Submitted Finding Charts: 1 170.D-0010B.001.ps List of Calibration OBs with Associated Science OBs --------------------------------------------------- Total Number of Submitted Calibration OBs: 0 OB Compliance Checks ==================== Y = Yes, N = No, NA = Not Applicable Do all your OBs comply with the instrument specific requirements listed on the instrument specific Phase 2 Web pages [Y]? Do all your FORS OBs use only the allowed detector read-out modes listed on the FORS1/FORS2 Phase 2 Web pages? [NA] Do all your FORS MOS/LSS OBs contain the mandatory "through-slit image" template? [NA]? Do all your UVES OBs use only the allowed templates listed on the UVES Phase 2 Web pages [Y]? If you submitted OBs for standard stars, did you specify the magnitude and spectral type of all standard stars [NA]? [ISAAC only] Are ALL the objects in your field-of-view fainter than the magnitude limits specified on the ISAAC Phase 2 Web page [NA]? [ISAAC only] If you submitted OBs for standard stars, did you use the provided StandardStar templates? [NA]? If you answered "NO" to any of these questions, please revise your OBs *before* submission.