termination shock

plural termination shocks

1. countableuncountableastronomyThe boundary marking one of the outer limits of the Sun's influence, where the solar wind dramatically slows.

   Studying the role of the termination shock and that of the heliosheath in cosmic ray modulation with numerical models has become most relevant since Voyager 1 crossed the termination shock on 16 December 2004 (e.g. Burlaga et al., 2005).

   2007, A. Balogh, Louis J. Lanzerotti, Steve T. Suess, The Heliosphere through the Solar Activity Cycle, Springer Science & Business Media, →ISBN, page 211

2. broadlycountableuncountableastronomyThat point for space around any star.
3. countableuncountableA rapid and damaging rise in temperatures once solar geoengineering measures are stopped.

   If a larger SRM deployment were phased out sufficiently slowly, the rate of warming could be limited, and termination shock avoided, even where it exerted a very large cooling effect.

   2018, Andy Parker, Peter J. Irvine, “The Risk of Termination Shock From Solar Geoengineering”, in Earth's Future, volume 6, number 3, →DOI, →ISSN, pages 456–467