A systematic UBVRIJHK survey of nearby galaxies to classify faint galaxies from deep HST surveys

Astronomy and Astrophysics – Astronomy

Scientific paper

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Classification And Classification Systems, Astronomical Observations

Scientific paper

To quantify the changes of galaxy parameters with rest-frame wavelength (and redshift), we present a large systematic survey in UBVRIJHK of about 400 nearby galaxies of all inclinations, Hubble types, and colors. These galaxies come from samples already imaged in (a subset of) the filters UBVRIJHK by de Jong et al. [6], Frei et al. [9], and Frogel et al. [10]. We present the first part of a large U-band imaging project with the new high throughput wide-field camera at the Vatican Advanced Technology Telescope (VATT) on Mt. Graham, AZ. The combined UBVRIJHK sample will allow us to quantify local galaxy parameters in the range 3000 Å-2.2 μm. A modeling analysis applied to faint field galaxies seen with Hubble Space Telescope (HST) will allow us to address the relative importance of bulge versus disk dominated galaxies, of late-type versus irregular galaxies, and of low surface brightness (SB) galaxies versus sub-galactic clumps as a function of redshift.

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