Resolving the Pictor A Jet

Details Resolving the Pictor A Jet Resolving the Pictor A Jet

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009hst..prop12261m&link_type=abstract

HST Proposal ID #12261. Cycle 18

Physics

Scientific paper

We are proposing to obtain new images of the Pictor A jet in order to measure the spatial scale of clumping and to search for variability. X-ray images show a jet that has an opening angle of less than 1 degree that is about 2' {84 kpc, projected} long, unresolved for the first 30-40", and marginally detectable out to the terminal hotspot that is 4.2' from the core. The brightest portions of the inner jet are also marginally detectable in radio images. Based on a synchrotron model of the X-ray emission, we estimate that the bright parts of the inner jet should be detectable in the optical and IR in short HST observations with the WFC3. Three bandpasses will provide sufficient information on each knot to determine the synchrotron cutoffs, if it is in the optical band.;

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