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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Context. Nulling interferometry has been suggested as the underlyingprinciple for the Darwin and TPF-I exoplanet research missions. Aims. There areconstraints both on the mean value of the nulling ratio, and on its stability.Instrument instability noise is most detrimental to the stability of thenulling performance. Methods. We applied a modified version of the classicaldithering technique to the optical path difference in the scientific beam.Results. Using only this method, we repeatedly stabilised the dark fringe forseveral hours. This method alone sufficed to remove the 1/ f component of thenoise in our setup for periods of 10 minutes, typically. These results indicatethat performance stability may be maintained throughout the long-duration dataacquisitions typical of exoplanet spectroscopy. Conclusions. We suggest thatfurther study of possible stabilisation strategies should be an integral partof Darwin/TPF-I research and development

Stabilising a nulling interferometer using optical path difference dithering