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8th of February 2015
International Year of Light 2015
High resolution radio emission from RCW 49
by Paula Bengalia (IAR, Argentina)
The HII region RCW 49 and its ionizing cluster form a complex region that has been widely studied at infrared and optical wavelengths. Benaglia et al. (2013) analyse Molonglo 843 MHz and ATCA 5.5 / 9 GHz radio continuum data. They find two radio shells closely matching the Spitzer infrared emission, showing pillars, filaments and a bright bridge. - The image shows the ATCA 9 GHz radio continuum emission in red, the Spitzer 3.6 micron emission in blue and the Spitzer 8 micron emission in green.

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