2009A&A...508.1493M


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.26CET03:00:29

2009A&A...508.1493M - Astronomy and Astrophysics, volume 508, 1493-1502 (2009/12-4)

On the eccentricity of self-gravitating circumstellar disks in eccentric binary systems.

MARZARI F., SCHOLL H., THEBAULT P. and BARUTEAU C.

Abstract (from CDS):

We study the evolution of circumstellar massive disks around the primary star of a binary system focusing on the computation of disk eccentricity. In particular, we concentrate on its dependence on the binary eccentricity. Self-gravitation is included in our numerical simulations. Our standard model assumes a semimajor axis for the binary of 30AU, the most probable value according to the present binary statistics. Two-dimensional hydrodynamical computations are performed with FARGO. Besides the dynamical standard method to determine disk eccentricities, we apply a morphological method which may allow a better comparison with observations. Self-gravitation leads to disks that, on average, have low eccentricity. Moreover, the orientation of the disk computed with the standard dynamical method always librates instead of circulating as in simulations without self-gravitation. The disk eccentricity decreases with the binary eccentricity, a result found also in models without self-gravitation. Disk self-gravitation appears to be an important factor in determining the evolution of a massive disk in a binary system. High eccentricity binaries are not necessarily a hostile environment for planetary accretion.

Abstract Copyright:

Journal keyword(s): planetary systems: formation - planetary systems: protoplanetary disks - methods: numerical

Simbad objects: 2

goto Full paper

goto View the reference in ADS

Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 818 0
2 * gam Cep SB* 23 39 20.9015326708 +77 37 56.505477975 5.190 4.250   2.6   K1III-IVCN1 558 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2009A&A...508.1493M and select 'bookmark this link' or equivalent in the popup menu


2021.02.26-03:00:29

© Université de Strasbourg/CNRS

    • Contact