heliosheath

English

Etymology

From helio- +‎ sheath.

Pronunciation

• Audio (US):

  (file)

Noun

heliosheath (plural heliosheaths)

1. (astronomy) A zone between the termination shock and the heliopause, in the heliosphere, at the outer border of the Solar System, where the solar wind is dramatically slower than within the termination shock.
   • 2023, Martin MacInnes, In Ascension, Atlantic Books, page 388:

     We encroach deeper into the furthest extent of the heliosheath, which thins out all the time.

Coordinate terms

• heliosphere
• heliopause
• termination shock
• stellar magnetosphere
• stellar wind

Translations

zone between the termination shock and the heliopause

• Finnish: heliovaippa
• French: héliogaine (fr) f