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Classification of 2.4-45.2 Micron Spectra from the Infrared Space Observatory Short Wavelength Spectrometer

Sloan, G. C.; Kraemer, Kathleen E.; Price, Stephan D. +1 more

The Infrared Space Observatory observed over 900 objects with the Short Wavelength Spectrometer in full-grating scan mode (2.4-45.2 µm). We have developed a comprehensive system of spectral classification using these data. Sources are assigned to groups based on the overall shape of the spectral energy distribution (SED). The groups include …

Far-Infrared Photometry of a Statistical Sample of Late-Type Virgo Cluster Galaxies

Tuffs, Richard J.; Popescu, Cristina C.; Pierini, Daniele +6 more

We present deep diffraction-limited far-infrared (FIR) strip maps of a sample of 63 galaxies later than S0 and brighter than B_T=16.8, selected from the Virgo Cluster Catalogue of Binggeli, Sandage, & Tammann. The ISOPHOT instrument on board the Infrared Space Observatory was used to achieve sensitivities typically an order of magnit…