Energetics of star-disc encounters in the non-linear regime

Details Energetics of star-disc encounters in the non-linear regime Energetics of star-disc encounters in the non-linear regime

1995-10-31

arxiv.org/abs/astro-ph/9510153v1

Astronomy and Astrophysics

Astrophysics

19 pages, uuencoded gzipped postscript. Accepted MNRAS. Contains no figures. The full version including all 18 figures is avai

Scientific paper

We investigate the response of a circumstellar accretion disc to the fly-by of a perturbing mass on a parabolic orbit. The energy and angular momentum transferred during the encounter are calculated using a reduced three-body method. In almost all close encounters the energy and angular momentum transfer is dominated by disc material becoming unbound from the system, with the contributions from close disc particle -- star encounters being significant. For more distant encounters with some prograde element to the motion the disc material loses energy and angular momentum to the perturber's orbit through a resonance feature. The magnitude of the energy transfer calculated in our simulations is greater than that of the binding energy of material exterior to periastron by a factor of two in the prograde case, and up to a factor of five in the case of the retrograde encounter. The destructive nature of the encounters indicates that a non-linear treatment is essential in all but the most distant encounters.

Affiliated with

Also associated with

No associations

Rating

Energetics of star-disc encounters in the non-linear regime 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 Energetics of star-disc encounters in the non-linear regime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energetics of star-disc encounters in the non-linear regime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-472722