2017MNRAS.466.1555B


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.18CET06:28:02

2017MNRAS.466.1555B - Mon. Not. R. Astron. Soc., 466, 1555-1566 (2017/April-1)

Dynamics and habitability in circumstellar planetary systems of known binary stars.

BAZSO A., PILAT-LOHINGER E., EGGL S., FUNK B., BANCELIN D. and RAU G.

Abstract (from CDS):

We present a survey on exoplanetary systems of binary stars with stellar separations less than 100 au. For a sample of 11 binaries that harbour detected circumstellar giant planets, we investigate the frequency of systems with secular resonances (SR) affecting the habitable zone (HZ). SR are connected to dynamically unstable or chaotic regions by enforcing highly eccentric motion. We apply a semi-analytical method to determine the locations of linear SR, which is based on finding the apsidal precession frequencies of the massive bodies. For configurations where the giant planet is located exterior to the HZ, we find that there is always an SR interior to its orbit; the exact location of the SR strongly depends on the system's architecture. In systems with the giant planet interior to the HZ, no SR can occur in the Newtonian framework. Taking into account the general relativistic precession of the perihelion, which increases the precession frequencies, planets with a < 0.1 au can cause SR in the HZ. We find two cases where the SR is located inside the HZ and some more where it is close to the HZ. Generally, giant planets interior to the HZ are more favourable than exterior planets to avoid SR in the HZ. Around the location of the SR weaker mean-motion resonances are excited and resonance overlap is possible. Existing analytical models are not as accurate as the semi-analytical method in locating the SR and deviate by ∼0.1 au or more.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): celestial mechanics - planets and satellites: dynamical evolution and stability - binaries: general - binaries: general

Simbad objects: 28

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Number of rows : 28

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 1237b Pl 00 16 12.6791488703 -79 51 04.244738563           ~ 52 1
2 HD 1237 PM* 00 16 12.6791488703 -79 51 04.244738563 7.692 7.335 6.578     G8V 202 1
3 HD 13445 PM* 02 10 25.9190575041 -50 49 25.467227759   6.945 6.117     K1.5V 421 1
4 HD 13445b Pl 02 10 25.9190575041 -50 49 25.467227759           ~ 90 1
5 * 94 Cet b Pl 03 12 46.4369076602 -01 11 45.949836281           ~ 43 1
6 * 94 Cet PM* 03 12 46.4369076602 -01 11 45.949836281   5.631 5.070     F8.5V 410 1
7 HD 41004 ** 05 59 49.6473573887 -48 14 22.805780232   9.49 8.65     K1IV 156 1
8 HD 41004Ab Pl 05 59 49.6473573887 -48 14 22.805780232           ~ 30 1
9 * tau Boo b Pl 13 47 15.74340 +17 27 24.8552           ~ 239 1
10 * tau Boo Ro* 13 47 15.74340 +17 27 24.8552 5.02 4.98 4.49 4.09 3.85 F7IV-V 894 1
11 HD 126614 PM* 14 26 48.2796259129 -05 10 40.011974096   9.662 8.787     G8IV 80 1
12 HD 126614b Pl 14 26 48.2796259129 -05 10 40.011974096           ~ 12 2
13 * alf Cen ** 14 39 29.71993 -60 49 55.9990   0.4 -0.1     G2V+K1V 837 0
14 * alf Cen Bb err 14 39 35.06 -60 50 15.1           ~ 37 2
15 EWS 2008-BLG-92 ** 17 47 29.4594960057 -34 43 35.461670174       15.48   ~ 24 0
16 MOA 2013-BLG-260 ** 17 52 07.49 -29 50 46.0           ~ 27 0
17 HD 177830c Pl 19 05 20.7732754377 +25 55 14.370345579           ~ 3 1
18 HD 177830b Pl 19 05 20.7732754377 +25 55 14.370345579           ~ 42 1
19 HD 177830 ** 19 05 20.7732754377 +25 55 14.370345579   8.266 7.177     K0+M4V 175 1
20 Kepler-296 ** 19 06 09.572976 +49 26 14.54424           M2V 69 0
21 BD+41 3306 Ro* 19 19 00.5488384064 +41 38 04.581624991 10.01 9.67 8.86 8.18 7.66 K0V 225 0
22 Kepler-420b Pl 19 24 54.0384866371 +44 55 38.518268700           ~ 26 0
23 Kepler-420 Ro* 19 24 54.0384866371 +44 55 38.518268700   15.830 14.867     G5V 48 0
24 HD 196885b Pl 20 39 51.8753142885 +11 14 58.702911143           ~ 34 1
25 HD 196885 PM* 20 39 51.8753142885 +11 14 58.702911143   6.92 6.385 6.32   F8V 164 1
26 HD 218396 El* 23 07 28.7156905667 +21 08 03.302133882   6.21 5.953     F0+VkA5mA5 925 0
27 * gam Cep b Pl 23 39 20.9015326708 +77 37 56.505477975           ~ 65 1
28 * gam Cep SB* 23 39 20.9015326708 +77 37 56.505477975 5.190 4.250   2.6   K1III-IVCN1 555 1

    Equat.    Gal    SGal    Ecl

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2021.01.18-06:28:02

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