Accretion during binary star formation - II. Gaseous accretion and disc formation

Details Accretion during binary star formation - II. Gaseous accretion and disc formation Accretion during binary star formation - II. Gaseous accretion and disc formation

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.285...33b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 285, Issue 1, pp. 33-48.

Astronomy and Astrophysics

Astronomy

169

Accretion, Accretion Discs, Hydrodynamics, Binaries: General, Circumstellar Matter, Stars: Formation.

Scientific paper

We consider the effects of accretion during binary star formation. When a `seed' protobinary system forms within a collapsing molecular cloud core, its final state is determined by the accretion of, or interaction with, the remaining cloud material as it falls on to the system. The mass ratio and orbit of the binary and the formation of circumstellar and circumbinary discs are all dependent on the dynamics of this accretion process. In this paper, we study the effects of accretion on the mass ratio and separation of the binary. The gas is modelled using smoothed particle hydrodynamics (SPH), and the results are compared and contrasted with those obtained using ballistic calculations in an earlier paper. The inclusion of hydrodynamic effects also allows us to study the disc formation process. We determine what fractions of the infalling gas form circumstellar and circumbinary discs and find that, under some circumstances, a large circumstellar disc forms around the primary while the secondary has only a small circumstellar disc, or indeed no disc at all. The observational implications are discussed.

Affiliated with

Also associated with

No associations

Rating

Accretion during binary star formation - II. Gaseous accretion and disc formation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Accretion during binary star formation - II. Gaseous accretion and disc formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accretion during binary star formation - II. Gaseous accretion and disc formation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1605398