Multi-Object Spectroscopy

As there have been more requests for Multi-Object Spectroscopy (MOS) with ALFOSC, it has become clear that a permanent solution should be found for the system to define and manufacture the MOS plates. Up to now we have depended on the goodwill from the NBI in Copenhagen in assisting with software and making the masks for free, but this is no longer sustainable. We are currently working on software tools to help users design MOS masks, define a standard way to transform the user's design to the format needed by the cutting machine, and agree where the masks will be manufactured. For the latter, tests are being made at the TNG to see if they can manufacture the MOS masks. Specifically, it is being tested if the correct slit width and mechanical support for the mask can be made. Else, some form of agreement would have to be made for the manufacturing of the masks at the NBI. We hope to have the full system as for the definition, design and manufacturing of the masks, in place by the start of the next observing semester.