2010A&A...516A..82F


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST12:51:25

2010A&A...516A..82F - Astronomy and Astrophysics, volume 516, A82-82 (2010/6-3)

The stability of ultra-compact planetary systems.

FUNK B., WUCHTERL G., SCHWARZ R., PILAT-LOHINGER E. and EGGL S.

Abstract (from CDS):

We investigate the dynamical stability of compact planetary systems in the CoRoT discovery space, i.e., with orbital periods of less than 50 days, including a detailed study of the stability of systems, which are spaced according to Hill's criteria. The innermost fictitious planet was placed close to the Roche limit from the star (MStar=1MSun) and all other fictitious planets are lined up according to Hill's criteria up to a distance of 0.26AU, which corresponds to a 50 day period for a Sun-massed star. For the masses of the fictitious planets, we chose a range of 0.33-17mEarth, where in each simulation all fictitious planets have the same mass. Additionally, we tested the influence of both the semi-major axis of the innermost planet and of the number of planets. In a next step we also included a gas giant in our calculations, which perturbs the inner ones and investigated their stability. With numerous integrations of many different configurations we could show that long-time stable motion is possible for up to 10 planets with 17mEarth within a distance of 0.26AU. Further investigations show that the fictitious planets remain stable under certain circumstances even if a close-in gas giant is present.

Abstract Copyright:

Journal keyword(s): planets and satellites: general - celestial mechanics

Simbad objects: 15

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Number of rows : 15

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 HD 40307d Pl 05 54 04.2409953924 -60 01 24.491747849           ~ 28 1
2 HD 40307 PM* 05 54 04.2409953924 -60 01 24.491747849 8.814 8.097 7.147 6.597 6.119 K2.5V 199 1
3 HD 40307c Pl 05 54 04.2409953924 -60 01 24.491747849           ~ 26 1
4 HD 40307b Pl 05 54 04.2409953924 -60 01 24.491747849           ~ 42 1
5 CoRoT-7c Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 39 1
6 CoRoT-7b Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 346 1
7 BD-07 4003e Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 66 1
8 BD-07 4003b Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 73 1
9 BD-07 4003d Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 136 1
10 BD-07 4003c Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 96 1
11 BD-07 4003 BY* 15 19 26.8271336166 -07 43 20.190958776 13.403 11.76 10.560 9.461 8.911 M3V 534 2
12 BD-15 6290c Pl 22 53 16.7323107416 -14 15 49.303409936           ~ 167 1
13 BD-15 6290d Pl 22 53 16.7323107416 -14 15 49.303409936           ~ 135 1
14 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
15 BD-15 6290b Pl 22 53 16.7323107416 -14 15 49.303409936           ~ 219 1

    Equat.    Gal    SGal    Ecl

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2020.07.12-12:51:25

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