Interstellar Medium Cooling Lines

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

The two most dominant cooling lines of the neutral interstellar medium are the [CII]158um and [OI]63um far-infrared lines. These two lines were observed in many galaxies by the Infrared Space Observatory, but are beyond the wavelength range of the spectrometer on the Spitzer Space Telescope. Using the ISO archives and the spectral maps from the SINGS Legacy program, we have carried out a correlation analysis between the far-infrared cooling lines probed by ISO, and the mid-infrared cooling lines probed by Spitzer. Preliminary correlations are presented for both nuclear and extra-nuclear regions in SINGS galaxies. This work was part of the Wyoming SURAP REU program funded by the NSF grant ASTR-0353760.

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