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R.J. Brunner, S.G. Djorgovski, R.R. Gal (Caltech), S.C. Odewahn (Caltech and ASU)
Our current understanding of the low surface brightness universe is quite incomplete, not only in the optical, but also in other wavelength regimes. We have, therefore, begun an exploration of the multi-wavelength, low surface brightness universe. This project currently involves data from DPOSS (Digitized Palomar Optical Sky Survey), 2MASS (Two Micron All Sky Survey), IRAS (Infrared Astronomical Satellite), and several neutral hydrogen surveys.
We present some initial results of this work as well as discuss the implications of this work on future virtual observatories. Our main scientific goals have been the search for low surface brightness galaxies, including local group dwarf spheroidals, and also optical counterparts to high velocity clouds. Our techniques are complimentary to normal data reduction pipeline techniques in that we focus on the diffuse emission that is ignored or removed by more traditional algorithms. This requires, of course, a spatial filtering which must account for objects of interest, in addition to observational artifacts ({\em e.g.,}\ bright stellar halos). Finally, with this work, we are exploring the intersection of the catalog and image domains in order to maximize the scientific information we can extract from the federation of large survey data.
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