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Reviewing off-axis telescope concepts A quest for highest possible dynamic range for photometry and angular resolution
Moretto G., Kuhn J. R., Goode P. R.
Proceedings of Society of Photo-Optical Instrumentation Engineers - SPIE 8444 (2012) 8444OY - http://hal.in2p3.fr/in2p3-00740920
Physique/Astrophysique/Instrumentation et méthodes pour l'astrophysique
Planète et Univers/Astrophysique/Instrumentation et méthodes pour l'astrophysique
Reviewing off-axis telescope concepts A quest for highest possible dynamic range for photometry and angular resolution
G. Moretto ()1, Jeff R. Kuhn2, Phil R. Goode3
1 :  IPNL - Institut de Physique Nucléaire de Lyon
http://www.ipnl.in2p3.fr/
CNRS : UMR5822 – IN2P3 – Université Claude Bernard - Lyon I (UCBL)
France
2 :  IofA/UofH - Institute for Astronomy, University of Hawaii
University of Hawaii at Manoa
Honolulu, Hawaii
États-Unis
3 :  BBSO/NJIT - Big Bear Solar Observatory, NJIT
New Jersey Institute of Technology
Big Bear City, California
États-Unis
We review off-axis telescope concepts that use unobstructed pupils. Built and prospective telescopes for ground and space astronomy will be presented and discussed. Such concepts offer great advantages in terms of emissivity, throughput, diffraction- limited energy concentration and higher dynamic range. The coronagraphic performance of off-axis telescopes will enable instruments, which are starving for higher dynamic range, for example, those devoted to faint companion detection and solar studies. Smaller telescopes like SOLAR-C (IfA/Haleakala Observatory), and the New Solar Telescope (NST/NJIT/ Big Bear Observatory) are operational and are test beds for the Advanced Technology Solar Telescope (ATST Project) for which site construction is beginning on Haleakala.

Articles dans des revues avec comité de lecture
01/09/2012
Proceedings of Society of Photo-Optical Instrumentation Engineers - SPIE
8444
8444OY
2012 SPIE

15 pages
off-axis telescope – low scattered light – low emissivity – higher dynamic range
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