[CII] at 158 mic as a star formation tracer in late-type galaxies
A. Boselli, G. Gavazzi, J. Lequeux, D. Pierini
Abstract
We present a calibration of the massive star formation rate vs. [CII] luminosity relation based on a sample of nearby, late-type galaxies observed with ISO-LWS and imaged in the Halpha+[NII] line. The relation holds for far-IR luminosities 108 < LFIR < 1010.5 L (solar units). The derived star formation rates have an uncertainty of about a factor of 10. Part of this uncertainty is due to the different mix of contributions to the [CII] emission from the different components of the interstellar medium in individual galaxies, as discussed in an appendix.
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