Estimated performance of a symmetric nulling coronagraph for exoplanet imaging

D. Ren; E. Serabyn

doi:10.1117/12.674163

15 June 2006 Estimated performance of a symmetric nulling coronagraph for exoplanet imaging

D. Ren, E. Serabyn

Proceedings Volume 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter; 62653X (2006) https://doi.org/10.1117/12.674163
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The direct detection of the earth-similar planets nearby bright stars needs high-contrast imaging. We proposed a nulling coronagraph that can, in principle, totally cancel the on-axis point-source starlight for broadband high-contrast imaging. The nulling coronagraph also features close angular distance imaging and high throughput. Equipped with a telescope with only 1.5-m aperture size, it has the potentiality to be able to resolving and directly detecting earth-similar planets at 0.1" (1 λ/D) close-distance in the visible wavelength range. The requirement for a small telescope is a significant advantage for future space missions. We discuss the working principle, instrument realization, error and sensitivity analysis, and the estimated performance of the nulling coronagraph.

Citation Download Citation

D. Ren and E. Serabyn "Estimated performance of a symmetric nulling coronagraph for exoplanet imaging", Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62653X (15 June 2006); https://doi.org/10.1117/12.674163

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