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About WUPPE Data |
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HST previews are not currently working. We are investigating and apologize for the inconvenience. For image previews we suggest that you try the Aladin option, and for spectral previews the SpecView option. Links to these options are found near the bottom of the preview page. For ACS, STIS and NICMOS grism data you may find the HLA another good option.
Instrument Description
- Developing Institution: University of Wisconsin
- Telescope Optics: Cassegrain system, f/10 focal ratio
- Instrument: Spectropolarimeter with dual electronic diode array detectors
- Primary Mirror: 50 centimeters (20 inches) diameter
- Field of View: 3.3 x 4.4 arc-minutes
- Spectral Resolution: 6 angstroms
- Wavelength Range: 1,400 to 3,200 angstroms
- Magnitude Limit: 16
- Weight: 446 kilograms (981 pounds)
- Diameter: 70 centimeters (28 inches)
- Length: 3.7 meters (12.14 feet) length
WUPPE was designed to obtain simultaneous spectra and polarization measurements from 1400 to 3300Å. WUPPE has a 0.5m f/10 classical Cassegrain telescope (area = 1,800 square centimeters, 279 square inches) and a spectropolarimeter, with a field of view of 3.3 by 4.4 arc-minutes and a resolution of 6 angstroms. The telescope feeds light to a low resolution spectrometer equipped with various polarimetric analyzers. The spectrometer is a modified Monk-Gilleson spectrometer: two rotating wheels are used to select the focal plane aperture and the polarimetric analyzer; a magnesium fluoride Wollaston polarizing beam-splitter placed between the aperture and the relay mirror splits the beam into two orthogonally-polarized spectra which fall on the detector. The detector consists of dual Reticon self-scanning linear arrays of 1024 pixel photodiodes (to detect both beams simultaneously) coupled by fiber optics to a microchannel plate intensifier with a cesium-telluride photocathode. A charge-coupled device camera is provided for target acquisition and for viewing the aperture during a measurement. The focal plane scale is 26 arcsec/mm and the dispersion is 78 Å/mm, blaze at 2000 Angstroms. A set of halfwave plates at 6 different angles provided spectropolarimetric modulation with 5 angstrom resolution on point sources through apertures from 6 to 40 arcsec. A "Lyot" analyzer was used to provide 50-100 angstrom spectropolarimetric resolution on faint point targets and diffuse nebulae.
Page taken from WUPPE Web site
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