Instrumental calibration of wide field imagers

Details Instrumental calibration of wide field imagers Instrumental calibration of wide field imagers

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..191v&link_type=abstract

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,

Astronomy and Astrophysics

Astrophysics

Type Ia Supernovae, Calibration, Sndice

Scientific paper

Photometric calibration is becoming a crucial issue in various cosmological measurements, such as the measurement of the cosmological parameters with Type Ia Supernovae (SNe Ia). To achieve the accuracy level of ˜ 0.1% required by future surveys, several collaborations are studying new instrumental calibration strategies. We report on the SNDice project. SNDice is a very stable illuminating system installed at the Canada-France-Hawaii Telescope (CFHT). The goal is to demonstrate that, with such an instrument, it is possible to monitor the instrument response with a precision of 0.01%, and to deliver a flux calibration accurate at the 0.1% level.

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