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

In this paper we derive the geodesic equation for massive particles and lightfor the black spindle spacetime. The solution for light can be formulated interms of the Weierstra{\ss} {\wp}-, {\sigma}- and {\zeta}-function, whereas apart of the solutions for massive particles is given in terms of derivatives ofthe Kleinian {\sigma}-function. We analyze the possible orbit types usingparametric diagrams and effective potentials. Furthermore we visualize theorbits in a coordinate system, where the spindle-like topology of the horizonis visible.

Geodesic equations for particles and light in the black spindle spacetime