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

We present simultaneous photometric and spectroscopic observations of HD17156b spanning a transit on UT 2007 November 12. This system is of specialinterest because of its 21-day period (unusually long for a transiting planet)and its high orbital eccentricity of 0.67. By modeling the Rossiter-McLaughlineffect, we find the angle between the sky projections of the orbital axis andthe stellar rotation axis to be $62^{\circ} \pm 25^{\circ}$. Such a largespin-orbit misalignment, as well as the large eccentricity, could be explainedas the relic of a previous gravitational interaction with other planets.

A Possible Spin-Orbit Misalignment in the Transiting Eccentric Planet HD 17156b