Early evolution of spherical ejecta expanding into the circumstellar matter at ultra-relativistic speeds

Toshikazu Shigeyama, Akihiro Suzuki, Ko Nakamura

Research output: Contribution to journalArticle

1 Citation (Scopus)


We present a new self-similar solution describing the early evolution of an ultra-relativistic flow resulting from a collision of homologously expanding spherical ejecta with the circumstellar matter, in which a shock wave propagates in the circumstellar matter, while a weak discontinuity propagates in the ejecta at the sound speed.

Original languageEnglish
Pages (from-to)87
Number of pages1
JournalPublications of the Astronomical Society of Japan
Issue number4
Publication statusPublished - 2012 Aug 25
Externally publishedYes



  • General
  • Hydrodynamics - relativity - shock waves - stars
  • Supernovae

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this