2017A&A...608A.116C


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.20CEST07:56:11

2017A&A...608A.116C - Astronomy and Astrophysics, volume 608A, 116-116 (2017/12-1)

Galactic perturbations on the population of wide binary stars with exoplanets.

CORREA-OTTO J.A. and GIL-HUTTON R.A.

Abstract (from CDS):

Aims. The aim of this work is to study the dynamical effects of the Galaxy on binary star systems with physical and orbital characteristics similar to those of the population of known wide binary stars with exoplanets. As secondary goal we analyse the possible consequences on the stability of a hypothetical planetary system orbiting one of the stellar components.
Methods. We numerically reproduced the temporal evolution of a sample of 3x105 binary star systems disturbed by the Galactic potential and passing stars in an environment similar to the solar neighbourhood.
Results. Our results show that the dynamical evolution of the population of wide binary stars with exoplanets in the solar neighbourhood is modelled by the process of disruption of binary star systems induced by the Galaxy. We found that this process depends mainly on the separation between both stars, whereas it is almost independent of the initial orbital configuration. Moreover, our calculations are in agreement with the results of previous works regarding the indirect influence of the Galaxy on the stability of planetary systems in wide binary stars. However, the effects on the planetary region show a dependence on the initial configuration of binary stars. Finally, we obtain an indirect test of the impulse approximation model for dynamical studies of binary star systems.

Abstract Copyright: © ESO, 2017

Journal keyword(s): binaries: general - Galaxy: kinematics and dynamics - planets and satellites: dynamical evolution and stability - methods: numerical - solar neighborhood - solar neighborhood

Simbad objects: 20

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Number of rows : 20

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 HD 7449 PM* 01 14 29.3222250437 -05 02 50.614804562   8.08 7.48     F9.5V 85 2
2 HD 11964 PM* 01 57 09.6073695508 -10 14 32.731766141   7.25 6.42     G9VCN+1 159 1
3 HD 20781 PM* 03 20 02.9428582501 -28 47 01.790465531   9.263 8.44 8.17 8.43 G9.5V 90 1
4 HD 20782 PM* 03 20 03.5777409770 -28 51 14.660409684   8.03 7.38     G1.5V 168 1
5 HD 38529 PM* 05 46 34.9129896843 +01 10 05.512540812       5.4   G8III/IV 320 2
6 BD+50 1471 PM* 07 48 06.4726006390 +50 13 32.921121328   12.002 11.138 10.669 10.243 G9V 143 1
7 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 1007 1
8 HD 80606 PM* 09 22 37.5769478105 +50 36 13.434928660   9.78 9.00     G8V 292 2
9 HD 101930 PM* 11 43 30.1133689238 -58 00 24.776845450   9.12 8.21     K2V+ 90 1
10 * 11 Com PM* 12 20 43.0255802451 +17 47 34.339258907   5.74 4.74     G8+IIIFe-1 150 1
11 HD 125612 PM* 14 20 53.5176697825 -17 28 53.488801800   8.93 8.32     G3V 97 1
12 HD 142022 PM* 16 10 15.0268591227 -84 13 53.813712139   8.47 7.69     G9IV-V 92 1
13 HD 147513 PM* 16 24 01.2905970257 -39 11 34.734611237 6.17 6.02 5.376     G5V 317 1
14 CD-51 10924 PM* 17 30 11.2030058822 -51 38 13.139736838 12.317 11.028 9.585 8.675 8.60 M0V 87 1
15 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12262 0
16 HD 190360 PM* 20 03 37.4049065078 +29 53 48.495330996   6.44   5.2   G7IV-V 401 1
17 HD 204941 PM* 21 32 23.5099500012 -20 57 26.719628458   9.39 8.48     K2V 70 1
18 HD 213240 PM* 22 31 00.3665162994 -49 25 59.767492660   7.41 6.80     G0/1V 157 1
19 BD+37 4734B PM* 22 57 46.8443014981 +38 40 30.355384717   10.82 9.87     G0V 146 1
20 HD 222582 PM* 23 41 51.5299950324 -05 59 08.731514665   8.34 7.69     G5V 206 2

    Equat.    Gal    SGal    Ecl

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