New ideas on jets and outflows interactions

Thibaut Lery*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We propose an alternative global model for the flows surrounding both low and high mass YSOs. In addition to a central accretion-ejection engine driving the jet, the molecular outflow is powered by the infalling matter and follows a circulation pattern around the central object without necessarily being entrained by the jet. The model produces a heated pressure-driven outflow with magneto-centrifugal acceleration and collimation. We will try to clarify the relation between the fast jet and its surrounding molecular outflow, which does not primarily rely on entrainment (prompt or turbulent) in the model. Hence, there is no need to transfer a large momentum from the jet to the molecular outflow through the entrainment processes. The model suggests that radiative heating and the Poynting flux may ultimately be the main energy sources driving molecular outflow in addition to the entrainment processes by the fast jet.

Original languageEnglish (US)
Pages (from-to)35-38
Number of pages4
JournalAstrophysics and Space Science
Volume287
Issue number1-4
DOIs
StatePublished - 2003
Externally publishedYes

Keywords

  • ISM
  • Jets
  • Outflows
  • Star formation

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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