Hello,
There are two important particular cases of 3D data, produced by two 3D spectrographs on VLT: VIMOS (multi-slit mode) and GIRAFFE (IFU mode).
These both data types are a kind of hybrid between multi-object spectroscopy and spatially resolved spectroscopy of individual objects (long-slit for VIMOS or integral field for GIRAFFE): for many objects there are slits (e.g. to extract rotation curve of galaxy) or small IFU (several by several fibers). This is used for example to obtain internal kinematics (or/and stellar populations) simultaneously for a couple of galaxies in a distant cluster.
Should the 3D data model, we are speaking about, be able to handle these cases, or they should be represented as, say, list of individual "short" long-slit or "small" IFU datasets?
With best regards,
Igor Received on 2005-02-25Z13:26:38