|
|
|
____________________
|
|
|
|
Michelle Home Page
The instrument
Michelle is a mid-infrared imager/spectrometer which was built at the ATC in Edinburgh, Scotland. It
uses a SBRC Si:As 320x240-pixel array and operates between 8 and 25
microns. Michelle offers several modes of observing, which include:
- Imaging (67.2 x 50.4 arcsec field of view at 0.21 arcsecs
per pixel)
- Imaging polarimetry
- Spectroscopy (R=200 to 30000, a ~91 arcsec long slit, 0.38
arcsec per pixel)
- Spectropolarimetry
Spectroscopy mode:
Michelle contains five gratings offering a wide selection of
resolutions and wavelengths. Any grating can be selected in a couple of
minutes so observers are not limited to one or two gratings per run.
Each can be used with different slits, 1, 2, 3, 4, and 8-pixels (0".38,
0".76 etc) wide, all of which are approximately 91 arcseconds long.
Resolving powers range from 200 to 30,000.
Imaging mode:
Eleven filters are available, both broad and narrow band, and cover the
wavelength range from 8 to 25 microns. Available filters, including
passbands, can be found in the
Michelle planning applet.
Latest news (7-May-2004)
After a short semester 04A, Michelle was transferred to Gemini on April
29th. This transfer marks the beginning of a long-term loan and the
instrument is therefore no longer available at UKIRT.
Extra links:
|
|
