Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...20314610b&link_type=abstract
American Astronomical Society Meeting 203, #146.10; Bulletin of the American Astronomical Society, Vol. 36, p.591
Astronomy and Astrophysics
Astronomy
Scientific paper
To enhance the ability of astronomers to perform simulations of deep galaxy fields, we are developing a web simulator with this express purpose. Because our simulator uses real galaxy templates extracted from deep multicolor HST observations (the recently released GOODS fields), it represents a distinct improvement over the relatively rudimentary simulation tools currently available (artdata or skymaker) or standardly available exposure time calculators, both for the purposes of visualization and for making comparisons against real observations. Objects on these images are generated by a pixel-by-pixel resampling of objects, paying special attention to the best-fit pixel spectral energy distributions. Users can specify simulations with up to five different filters, with different pixel sizes, point spread functions, and zero points depending upon the passband. For our engine, we use the BUCS software already used in a variety of faint galaxy work. To facilitate these complex simulations we have begun to develop a simple web-base interface to the BUCS engine. While the site has only recently begun construction, long term plans may include adding galaxy templates from a variety of different surveys as well as the ability to perform no-evolution simulations based upon local, intermediate-redshift, and high-redshift surveys. Cameras from a number of well-known telescopes (HST, Keck, VLT) should also be a welcome addition. We see this as being an extremely useful tool come proposal time.
Bouwens Rychard J.
Illingworth Garth D.
Magee Daniel K.
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