Dear All, This email is a result of a recent conversation with Bruce Gillispie. He informed me that very soon the ARC will be at full capacity for carrying out faint object spectrscopy with the scheduled upgrades to the guider, DIS and the recent mirror coatings. With such a prospect on the horizon, I'd like to take this opportunity to canvas the ARC community about the possibility of setting up a more robust and routine mechanism for constructing DIS slit masks on the mountain. As a specific example, I have been imaging distant x-ray clusters of galaxies with the ARC for several years now but have always been unsuccessful in starting a multi-object spectroscopic follow-up campaign. Such a project would really require the flexibility and ease of constructing metal multi-slit masks at APO. Therefore, I have toyed with the idea of proposing for a slit-punching machine on the mountain (like EFOSC at ESO, MOS at the CFHT). Bruce tells me that there are several other observers who may find such a facility useful and would use it extensively if it was at the mountain. This is especially true if the facility was automated such that there was a minimal turn around and one did not have to have extensive planning beforehand (i.e. aquiring the masks from an outside vender). Could you please; a) email if you would be very interested in exploring this idea with me and may be able to supply some time and effort in the future, b) email me you would use such a system if it was available but would not be a primary user c) email me if you have any insight into such things and an estimate of the cost. If I get little or no feedback, I will abandon the idea and you will hear nothing else from me about this. Thanks Bob Nichol -------------------------------------------------------- Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213-3890, phone: 412-268-8068, Fax: 412-681-0648 email: nichol@astro.phys.cmu.edu / nichol@cmu.edu APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 131 in the apo35-general archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo35-general/INDEX.html APO To join/leave the list, send mail to apo35-request@astro.princeton.edu APO To post a message, mail it to apo35-general@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO