Energy and angular momentum deposition during common envelope evolution

Noam Soker*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

consider three processes which enhance mass loss rate from a common envelope of a giant star with a main sequence or a white dwarf companion spiraling-in inside its envelope. I consider deposition of orbital energy and orbital angular momentum to the giant's envelope, and the formation of jets by an accreting companion and their propagation in the envelope. I find that in many cases the deposition of orbital angular momentum to the envelope may be more important to the mass loss process than the deposition of orbital energy. Jets blown by an accreting companion, in particular a white dwarf, orbiting inside the outer regions of the giant's envelope may also dominate over orbital energy deposition at early stage of the common envelope evolution. These imply that studies which ignore the deposition of angular momentum to the envelope and the effects of the accreting companion may reach wrong conclusions.

Original languageEnglish
Pages (from-to)30-32
Number of pages3
JournalRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Volume20
DOIs
StatePublished - 2004
Externally publishedYes
EventIAU Colloquium 194 - Compact Binaries in the Galaxy and Beyond - La Paz, B.C. Sur, Mexico
Duration: 17 Nov 200322 Nov 2003

Keywords

  • ISM:Jets and outflows
  • Stars Binaries
  • Stars:AGB and post-AGB
  • Stars:Evolution
  • Stars:Mass loss

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