IR Observations of Distant Galaxies with SIRTF: II. The HDF

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Predicted infrared images of the Hubble Deep Field have been constructed from the HDF catalog. The fluxes for each source in the catalog have been fit using a linear combination of redshifted spectral energy distributions of elliptical and spiral galaxies. The tabulated moments have been used to determine the size and orientation of a de Vaucouleurs profile or an exponential disk that matches the optical size. These geometric and spectral fits are then extrapolated into the infrared 1.6 mu m to 8 mu m wavelength range that will be observable by ground-based telescopes, NICMOS, ISO and SIRTF, and convolved with the point spread function appropriate for each instrument to produce images that can be used to plan plan future observations.

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