Recommissioning of HPOL, a Medium Resolution Spectropolarimeter

Details Recommissioning of HPOL, a Medium Resolution Spectropolarimeter Recommissioning of HPOL, a Medium Resolution Spectropolarimeter

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21813216d&link_type=abstract

American Astronomical Society, AAS Meeting #218, #132.16; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We will report on the current status of the restoration of the Halfwave Polarimeter (HPOL) instrument, and present initial operational and science verification results from test observations carried out on the 1-meter telescope at Ritter Observatory at the University of Toledo. HPOL is a medium resolution spectropolarimeter, providing wavelength coverage from 3200 angstroms to 1.05 microns. It was previously a facility instrument at the Pine Bluff Observatory of the University of Wisconsin, but it has been off-line since October 2004. Our group has been working on restoring HPOL, in collaboration with astronomers at the University of Wisconsin and the University of Minnesota, with the eventual goal of relocation to the 60 inch telescope at the Mt. Lemmon Observing Facility, operated by the University of Minnesota. In addition to ongoing science programs on circumstellar disks and stellar polarimetry, a primary science objective for the refurbished HPOL will be investigations of potential polarization signatures from extrasolar planets. Initial targets will include HD189733b, which has had some recent polarimetry results reported in the literature, as well as several transiting planet systems.
The refurbishment of HPOL has been partially funded by a Small Research Grant from the AAS.

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