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

We confirm the Kepler planet candidate Kepler-410b (KOI-42b) as a Neptunesized exoplanet on a 17.8 day, eccentric orbit around the bright (Kp = 9.4)star Kepler-410A. This is the third brightest confirmed planet host star in theKepler field and one of the brightest hosts of all currently known transitingexoplanets. Kepler-410 consists of a blend between the fast rotating planethost star (Kepler-410A) and a fainter star (Kepler-410B), which has complicatedthe confirmation of the planetary candidate. Employing asteroseismology, usingconstraints from the transit light curve, adaptive optics and speckle images,and Spitzer transit observations, we demonstrate that the candidate can only bean exoplanet orbiting Kepler-410A. Via asteroseismology we determine thefollowing stellar and planetary parameters with high precision; M$_\star =1.214 \pm 0.033$ M$_\odot$, R$_\star = 1.352 \pm 0.010$ R$_\odot$, Age = $2.76\pm 0.54$ Gyr, planetary radius ($2.838 \pm 0.054$ R$_\oplus$), and orbitaleccentricity ($0.17^{+0.07}_{-0.06}$). In addition, rotational splitting of thepulsation modes allows for a measurement of Kepler-410A's inclination androtation rate. Our measurement of an inclination of $82.5^{+7.5}_{-2.5}$[$^\circ$] indicates a low obliquity in this system. Transit timing variationsindicate the presence of at least one additional (non-transiting) planet in thesystem.

astrophysical journal/the astrophysical journal

What asteroseismology can do for exoplanets: Kepler-410A b is a Small  Neptune around a bright star, in an eccentric orbit consistent with low  obliquity