English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The challenges of high contrast imaging (HCI) for detecting exoplanets forboth ground and space applications can be met with extreme adaptive optics(ExAO), a high-order adaptive optics system that performs wavefront sensing(WFS) and correction at high speed. We describe two ExAO optical systemdesigns, one each for ground-based telescopes and space-based missions, andexamine them using the angular spectrum Fresnel propagation module within thePhysical Optics Propagation in Python (POPPY) package. We present an end-to-end(E2E) simulation of the MagAO-X instrument, an ExAO system capable ofdelivering 6$\times10^{-5}$ visible-light raw contrast for static, noncommonpath aberrations without atmosphere. We present a laser guidestar (LGS)companion spacecraft testbed demonstration, which uses a remote beacon toincrease the signal available for WFS and control of the primary aperturesegments of a future large space telescope, providing on order of a factor often factor improvement for relaxing observatory stability requirements. The LGSE2E simulation provides an easily adjustable model to explore parameters,limits, and trade-offs on testbed design and characterization.

Modeling coronagraphic extreme wavefront control systems for high contrast imaging in ground and space telescope missions