Detection and Correction of Scattered Light in the 2.1-m San Pedro Mártir Telescope

Details Detection and Correction of Scattered Light in the 2.1-m San Pedro Mártir Telescope Detection and Correction of Scattered Light in the 2.1-m San Pedro Mártir Telescope

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rmxaa..32...63g&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, 32, 63-67 (1996)

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We have used the pinhole camera method (Grundhal & Sørensen 1966) to evaluate the amount of scattered light present at the exit pupil of the f/7.5, 2.1-m San Pedro Mártir telescope. A substantial amount of scattered light, originating from multiple reflections off the inner walls of the sky baffles was found to be present; this scattered component directly affects the quality of the flat-field calibration frames, which is in turn reflected on the accuracy of CCD bidimensional photometry. Corrective action has been performed on the primary's sky baffle, successfully eliminating most of the spurious scattered component.

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