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

A space-based gravitational microlensing exoplanet survey will provide astatistical census of exoplanets with masses greater than 0.1 Earth-masses andorbital separations ranging from 0.5AU to infinity. This includes analogs toall the Solar System's planets except for Mercury, as well as most types ofplanets predicted by planet formation theories. Such a survey will provideresults on the frequency of planets around all types of stars except those withshort lifetimes. Close-in planets with separations < 0.5 AU are invisible to aspace-based microlensing survey, but these can be found by Kepler. Othermethods, including ground-based microlensing, cannot approach the comprehensivestatistics on the mass and semi-major axis distribution of extrasolar planetsthat a space-based microlensing survey will provide. The terrestrial planetsensitivity of a ground-based microlensing survey is limited to the vicinity ofthe Einstein radius at 2-3 AU, and space-based imaging is needed to identifyand determine the mass of the planetary host stars for the vast majority ofplanets discovered by microlensing. Thus, a space-based microlensing survey islikely to be the only way to gain a comprehensive understanding of thearchitecture of planetary systems, which is needed to understand planetformation and habitability. The proposed Microlensing Planet Finder (MPF)mission is an example of a space-based microlensing survey that can accomplishthese objectives with proven technology and a cost of under $300 million(excluding launch vehicle).

A Census of Exoplanets in Orbits Beyond 0.5 AU via Space-based Microlensing