Looking for shocked gas in a rare system of radio-jet triggered star-formation

Details Looking for shocked gas in a rare system of radio-jet triggered star-formation Looking for shocked gas in a rare system of radio-jet triggered star-formation

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50460s&link_type=abstract

Spitzer Proposal ID #50460

Physics

Scientific paper

Star-formation induced by radio jet-ISM interactions is a known phenomenon for high-z radio galaxies. However, it is extremely rare nearby, making its detailed study difficult. We present a unique case of a string of seven 24 micron sources `hugging' the radio jet of a nearby (z=0.22) radio galaxy. The most likely explanation for this configuration is triggered star-formation via lateral shocks from the radio jet. We propose to obtain low-resolution IRS spectra of both the radio source host and the brightest of the 24 micron sources along the jet. Observations of molecular hydrogen, as well as fine structure lines such as [NeII] would allow us to study both the slow-moving molecular shocks and the fast-moving ionizing shocks. In addition, high-ionization lines would reveal the narrow-line region of the AGN, while PAH emission features would reveal the star-formation rate.

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