Star formation in hosts of young radio galaxies
Date
2005-08Author
Labiano, Alvaro
O'Dea, Christopher
Barthel, Peter
de Vries, Wim
Baum, Stefi
Metadata
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We present near ultraviolet imaging with the Hubble Space Telescope Advanced Camera for Surveys, targeting
young radio galaxies (Gigahertz Peaked Spectrum and Compact Steep Spectrum sources), in search of star
formation regions in their hosts. We find near UV light which could be the product of recent star formation in
eight of the nine observed sources. However, observations at other wavelengths and colors are needed to definitively establish the nature of the observed UV light. In the CSS sources 1443+77 and 1814–637 the near UV light is
aligned with and is co-spatial with the radio source, and we suggest that in these sources the UV light is produced by star formation triggered and/or enhanced by the radio source.