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

Pulsating subdwarf B (sdB) stars oscillate in short-period p-modes orlong-period g-modes. HS0702+6043 (DW Lyn) is one of a few objects to showcharacteristics of both types and is hence classified as hybrid pulsator. It isone of our targets in the EXOTIME program to search for planetary companionsaround extreme horizontal branch objects. In addition to the standard exercisein asteroseismology to probe the instantaneous inner structure of a star,measured changes in the pulsation frequencies as derived from an O-C diagramcan be compared to theoretical evolutionary timescales. Based on thephotometric data available so far, we are able to derive a high-resolutionfrequency spectrum and to report on our efforts to construct a multi-season O-Cdiagram. Additionally, we have gathered time-resolved spectroscopic data inorder to constrain stellar parameters and to derive mode parameters as well asradial and rotational velocities.

Long-term EXOTIME photometry and follow-up spectroscopy of the sdB pulsator HS 0702+6043