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

It has been shown that an Earth-size planet or a super-Earth, in resonancewith a transiting Jupiter-like body in a short-period orbit around an M star,can create detectable TTV signals (Kirste \& Haghighipour, 2011). Given the lowmasses of M stars and their circumstellar disks, it is expected that such atransiting giant planet to have formed at large distances and migrated to itsclose-in orbit. That implies, if such systems are discovered around M stars,the terrestrial planet had to form during the migration of the giant planet.The formation of this object may be either in-situ (in a close-in orbit)followed by its capture in resonance, or the object is formed at largerdistances where it was subsequently captured in a resonance with the migratinggiant planet. We have investigated these two scenarios by simulating thedynamics of a disk of protoplanetary embryos and the formation of terrestrialplanets during the migration of a Jupiter-like planet around an M star. Resultssuggest that unless the migration of the giant planet is very slow (slower than1E-7 AU/year), it is unlikely that the close-in terrestrial planet is formedin-situ. If a terrestrial planet is detected in a mean-motion resonance with aclose-in giant planet around an M star, the terrestrial planet was most likleyformed at large distances and carried to its close-in resonant orbit by themigrating giant body.

Implications of the TTV-Detection of Close-In Terrestrial Planets Around M Stars for Their Origin and Dynamical Evolution