Hostname: page-component-8448b6f56d-c4f8m Total loading time: 0 Render date: 2024-04-20T02:43:44.171Z Has data issue: false hasContentIssue false

On the Super-Earths locked in the 3:2 mean-motion resonance

Published online by Cambridge University Press:  19 April 2010

A. Łacny
Affiliation:
Faculty of Mathematics and Physics, University of Szczecin Wielkopolska 15, 70-451 Szczecin, Poland
E. Szuszkiewicz
Affiliation:
CASA and Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland
Get access

Abstract

The first study of migration-induced resonances in a pair of Earth-like planets has been performed by Papaloizou & Szuszkiewicz (2005). They concluded that in the case of disparate masses embedded in a disc with the surface density expected for a minimum mass solar nebula at 5.2 au, the most likely resonances are ratios of large integers, such as 8:7. For equal masses, planets tend to enter into the 2:1 or 3:2 resonance. In Papaloizou & Szuszkiewicz (2005) the two low-mass planets have masses equal to 4 Earth masses, chosen to mimic the very well known example of two pulsar planets which are close to the 3:2 resonance. That study has stimulated quite a few interesting questions. One of them is considered here, namely how the behaviour of the planets close to the mean-motion resonance depends on the actual values of the masses of the planets. We have chosen a 3:2 commensurability and investigated the outcome of an orbital migration in the vicinity of this resonance in the case of a pair of equal mass super-Earths, whose mass is either 5 or 8 Earth masses.

Type
Research Article
Copyright
© EAS, EDP Sciences, 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Nelson, R.P., Papaloizou, J.C.B., Masset, F., & Kley, W., 2000, MNRAS, 318, 18 CrossRef
Papaloizou, J., & Szuszkiewicz, E., 2005, MNRAS, 353, 153 CrossRef
Tanaka, H., Takeuchi, T., & Ward, W.R., 2002, ApJ, 565, 1257 CrossRef
Ziegler, U., & Yorke, H.W., 1997, Comput. Phys. Comun., 101, 54 CrossRef