The Resolved Star Formation Rate in the Nearby Fireworks Galaxy: NGC6946

Details The Resolved Star Formation Rate in the Nearby Fireworks Galaxy: NGC6946 The Resolved Star Formation Rate in the Nearby Fireworks Galaxy: NGC6946

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942302e&link_type=abstract

American Astronomical Society, AAS Meeting #219, #423.02

Astronomy and Astrophysics

Astronomy

Scientific paper

We derive the spatially resolved star formation rate (SFR) for the face-on nearby galaxy NGC6946 by decomposing the radio emission from this galaxy into its thermal and non-thermal components. The decomposition utilized five radio maps from 3.5 cm to 22 cm that were convolved to a common angular resolution of 15 arcsec (500 pc). The derived free-free emission correlates well with the extinction corrected Hα emission. Model HII regions were used to derive the extinction-free number of ionizing photons and consequently the SFR.

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