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 used the Robo-AO laser adaptive optics system to image 99 main sequenceand subgiant stars that have Kepler-detected asteroseismic signals. Robo-AOallows us to resolve blended secondary sources at separations as close as 0.15"that may contribute to the measured Kepler light curves and affectasteroseismic analysis and interpretation. We report 8 new secondary sourceswithin 4.0" of these Kepler asteroseismic stars. We used Subaru and Keckadaptive optics to measure differential infrared photometry for these candidatecompanion systems. Two of the secondary sources are likely foreground objectsand at least 6 of the secondaries are background sources; however we cannotexclude the possibility that three of the objects may be physically associated.We measured a range of i'-band amplitude dilutions for the candidate companionsystems from 0.43% to 15.4%. We find that the measured amplitude dilutions areinsufficient to explain the previously identified excess scatter in therelationship between asteroseismic oscillation amplitude and the frequency ofmaximum power.

Robo-AO Kepler Asteroseismic Survey. I. Adaptive optics imaging of 99 asteroseismic Kepler dwarfs and subgiants