Analysis of the ISOPHOT FIR maps of M51 and M101

Hippelein H., Lemke D., Haas M., Telesco C.M., Tuffs R.J., Voelk H.J., Xu C., Klaas U., Kinkel U.

Abstract:

The far-IR ISOPHOT maps of the spiral galaxies M51 and M101 at 60, 100, and at 175{mu}m are analysed. For all areas in these galaxies the spectral energy distributions can be fitted with a single-temperature emission curve. Colours and dust temperatures were estimated for interesting sub-fields. The temperatures vary between 33K for HII regions, and 28K for the disk, arm and interarm regimes.

Keywords:
galaxies - star formation - dust

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