On the 'flip-flop' instability of Bondi-Hoyle accretion flows

Mario Livio, Noam Soker, Takuya Matsuda, Ulrich Anzer

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Using a highly simplified analytic treatment of the shock cone obtained in Bondi-Hoyle accretion flows past a compact object and the results of stability analyses of the accretion line, we demonstrate that the 'flip-flop' instability discovered recently in numerical calculations, in which the wake oscillates from side to side, has a relatively simple physical interpretation. The results of our analysis are in agreement with those obtained in multidimensional numerical hydrodynamic calculations.

Original languageEnglish
Pages (from-to)633-636
Number of pages4
JournalMonthly Notices of the Royal Astronomical Society
Volume253
Issue number4
DOIs
StatePublished - 1991
Externally publishedYes

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