|
LAIWO
Scientific Manager : Dr. Cristina Afonso
Project Manager : Dr. Karl-Heinz Marien
The Large Area Imager for the Wise Observatory -
LAIWO, is an optical camera with 4 CCDS 4Kx4K pixels,
currently being built here at the Max-Planck-Institut fuer Astronomie,
Heidelberg. The camera will be mounted on the 1-m telescope in the Wise Observatory in the Negev
desert, Israel. The field of view will be one square degree with a
0.7'' resolution. LAIWO will be used for photometric detection of
transiting extra-solar Jupiter-size planets.
Technical Description
The camera
will have 4
Lockheed CCD486 devices, 4kx4k pixels, each 15 microns. The CCDs
are frontside-illuminated with the following characteristics:
- Quantum Efficiency of about 40% between 600 and 850nm
- Read-out noise < 5 e-
- Full-well > 85,000 e-
There will be one guider CCD located at the center of the mosaic: a eV
CCD47-20, 1kx1k frame transfer device, with a pixel size of 13 microns.
The filters (B,V,R,I,z') will be mounted on a ruler that fits into a drawer. Three
separate plates of sets of filters can be mounted on the ruler at the
same time. Each plate contains 5 filters, 4 for the imager CCDs and one
for the guider CCD.
The Wise telescope is a Boller and
Chivens telescope, i.e. a Ritchey-Chretien reflector mounted on a rigid
off-axis equatorial mount. The optics consist of:
- a 40 inch/1m diameter clear aperture f/4 primary
mirror
- a 20 inch/50cm diameter f/7 Cassegrain secondary
mirror
- a corrector quartz lens located 4 inch/10 cm above
primary
The Wise Observatory is located 200 km South of Tel Aviv, Israel and 5km West of the city of Mitzpe
Ramon in the Negev desert.
Responsible for this page : Cristina Afonso cafonso @
mpia.de
Last update : February 17, 2006
|
