Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994exa.....4..265a&link_type=abstract
Experimental Astronomy (ISSN 0922-6435), vol. 4, no. 3-4, p. 265-278
Astronomy and Astrophysics
Astrophysics
12
Cameras, Charge Coupled Devices, Dark Matter, Galactic Halos, Gravitational Lenses, Missing Mass (Astrophysics), Cryogenic Equipment, Magellanic Clouds, Mechanical Devices, Optical Equipment, Reflecting Telescopes, Schmidt Telescopes
Scientific paper
A 20 sq cm charge coupled device (CCD) mosaic camera has been especially built to search for dark galactic halo objects by the gravitational microlensing effect. The sensitive area is made of 16 edge-buttable CCDs developed by Thomson-CTS, with 23x23 sq micrometer pixels. The 35 kg camera housing and mechanical equipment is presented. The associated electronics and data acquisition system are described in a separate paper. The camera resides at the focal plane of a 40 cm, f/10, Ferson reflector. The instrument has been in operation since December 1991 at the European Southern Observatory's (ESO) La Silla Observatory.
Arnaud Monique
Aubourg Eric
Bareyre P.
Brehin S.
Caridroit R.
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