2004A&A...414..735K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.02CEST15:37:50

2004A&A...414..735K - Astronomy and Astrophysics, volume 414, 735-747 (2004/2-1)

Evolution of planetary systems in resonance.

KLEY W., PEITZ J. and BRYDEN G.

Abstract (from CDS):

We study the time evolution of two protoplanets still embedded in a protoplanetary disk. The results of two different numerical approaches are presented and compared. In the first approach, the motion of the disk material is computed with viscous hydrodynamical simulations, and the planetary motion is determined by N-body calculations including exactly the gravitational forces exerted by the disk material. In the second approach, only the N-body integration is performed but with additional dissipative forces included such as to mimic the effect of the disk torques acting on the disk. This type of modeling is much faster than the full hydrodynamical simulations, and gives comparative results provided that parameters are adjusted properly. Resonant capture of the planets is seen in both approaches, where the order of the resonance depends on the properties of the disk and the planets. Resonant capture leads to a rise in the eccentricity and to an alignment of the spatial orientation of orbits. The numerical results are compared with the observed planetary systems in mean motion resonance (GJ 876, HD 82943, and 55 Cnc). We find that the forcing together of two planets by their parent disk produces resonant configurations similar to those observed, but that eccentricity damping greater than that obtained in our hydrodynamic simulations is required to match the GJ 876 observations.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - planets and satellites: formation - hydrodynamics - celestial mechanics

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 969 1
2 * rho01 Cnc b Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 228 1
3 * rho01 Cnc d Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 134 1
4 * rho01 Cnc c Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 123 1
5 HD 82943 PM* 09 34 50.7352288445 -12 07 46.363303103   7.17 6.53     F9VFe+0.5 401 2
6 HD 82943b Pl 09 34 50.7352288445 -12 07 46.363303103           ~ 90 1
7 HD 82943c Pl 09 34 50.7352288445 -12 07 46.363303103           ~ 77 1
8 BD-15 6290 BY* 22 53 16.7323107416 -14 15 49.303409936 12.928 11.749 10.192 9.013 7.462 M3.5V 856 1
9 BD-15 6290b Pl 22 53 16.7323107416 -14 15 49.303409936           ~ 219 1
10 BD-15 6290c Pl 22 53 16.7323107416 -14 15 49.303409936           ~ 167 1

    Equat.    Gal    SGal    Ecl

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2020.07.02-15:37:50

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