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/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

An interstellar Bussard ramjet is a spaceship using the protons of theinterstellar medium in a fusion engine to produce thrust. In recent papers, itwas shown that the relativistic equation of motion of an ideal ramjet and of aramjet with radiation loss are analytical. When a mass loss appears, the limitspeed of the ramjet is more strongly reduced. But, the parametric equations, interms of the ramjet's speed, for the position of the ramjet in the inertialframe of the interstellar medium, the time in this frame, and the proper timeindicated by the clocks on board the spaceship, can still be obtained in ananalytical form. The non-relativistic motion and the motion near the limitspeed are studied.

Equation of motion of an interstellar Bussard ramjet with radiation and mass losses