Physics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9768h&link_type=abstract
HST Proposal ID #9768
Physics
Hst Proposal Id #9768 Ism And Circumstellar Matter
Scientific paper
We propose to enable a new mode on NICMOS that combines the powerful diffracted light rejection of the coronagraph with the diagnostic power of polarimetry. This new capability will open a new regime in high contrast imaging that has not been possible before. We will enable this capability by observing calibration targets with the coronagraph and the NIC2 polarizers in place. The enabled science includes, but is not limited to, detection and imaging of circumstellar debris in polarized light, the polarized emission surrounding bright planetary nebulae, and the extended structure around bright active galaxies. A similar capability is possible with the ACS, and therefore HST would provide the only platform for this extremely high contrast imaging covering the entire near-UV, optical and near-infrared wavelength regime. Only the combined HST NICMOS system has the combined resolution and stability {especially with the NCS} to provide high spatial resolution, coronagraphic, near-infrared polarimetry in the foreseeable future. The technique is absolutely unique to HST and will enable a new regime in high contrast imaging.
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