Power Spectrum Analysis of Spitzer Images

Details Power Spectrum Analysis of Spitzer Images Power Spectrum Analysis of Spitzer Images

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..421..283p&link_type=abstract

Galaxies in Isolation: Exploring Nature Versus Nurture, proceedings of a conference held 12 to 15 May 2009 in Granada, Spain. Ed

Astronomy and Astrophysics

Astronomy

Scientific paper

We have performed a Fourier transform power spectra analysis of 33 galaxies imaged with IRAC on board of the Spitzer Space Telescope. The spectra show an approximately power-law over a wide range of wavelengths with a gradual steepening from 3.6 or 4.5 μm to 8.0 μm, due to an increasing contribution from gas and dust. We found no correlation between the power-law slopes at radii with active star formation in the 8.0 μm images and the spiral arm morphology. These results were published in Block et al. (2009).

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