29 July 2015 to 6 August 2015
World Forum
Europe/Amsterdam timezone

Divergent pointing with the Cherenkov Telescope Array for surveys and beyond

30 Jul 2015, 15:30
1h
Mississippi Foyer (World Forum)

Mississippi Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 52
Poster contribution GA-EX Poster 1 GA

Speaker

Lucie Gerard

Description

The galactic and extragalactic surveys are two of the main proposed legacy projects of the Cherenkov Telescope Array (CTA). Considering Cherenkov telescopes field of view (<10°), the time needed for those projects is large. The many telescopes of CTA will allow taking full advantage of new pointing modes in which telescopes point slightly offset from one another. This divergent pointing mode leads to an increase of the array field of view (~ 14° or larger) with competitive performance compared to normal pointing. We present here a study of the performance of the divergent pointing for different array configurations and number of telescopes. We show that for a fixed survey sensitivity, using divergent pointing instead of normal pointing results in a non-negligible gain in observing time and reduced fluctuations in survey depth. We review multiple science cases benefiting from the large field-of-view offered by the divergent pointing.
Registration number following "ICRC2015-I/" 626
Collaboration CTA

Primary author

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