2019AJ....157...61V

Query : 2019AJ....157...61V

2019AJ....157...61V - Astron. J., 157, 61-61 (2019/February-0)

The orbital eccentricity of small planet systems.

VAN EYLEN V., ALBRECHT S., HUANG X., MacDONALD M.G., DAWSON R.I., CAI M.X., FOREMAN-MACKEY D., LUNDKVIST M.S., SILVA AGUIRRE V., SNELLEN I. and WINN J.N.

Abstract (from CDS):

We determine the orbital eccentricities of individual small Kepler planets, through a combination of asteroseismology and transit light-curve analysis. We are able to constrain the eccentricities of 51 systems with a single transiting planet, which supplement our previous measurements of 66 planets in multi-planet systems. Through a Bayesian hierarchical analysis, we find evidence that systems with only one detected transiting planet have a different eccentricity distribution than systems with multiple detected transiting planets. The eccentricity distribution of the single-transiting systems is well described by the positive half of a zero-mean Gaussian distribution with a dispersion σe = 0.32 ± 0.06, while the multiple-transit systems are consistent with σe=0.083–0.020+0.015. A mixture model suggests a fraction of 0.76–0.12+0.21 of single-transiting systems have a moderate eccentricity, represented by a Rayleigh distribution that peaks at 0.26–0.06+0.04. This finding may reflect differences in the formation pathways of systems with different numbers of transiting planets. We investigate the possibility that eccentricities are self-excited in closely packed planetary systems, as well as the influence of long-period giant companion planets. We find that both mechanisms can qualitatively explain the observations. We do not find any evidence for a correlation between eccentricity and stellar metallicity, as has been seen for giant planets. Neither do we find any evidence that orbital eccentricity is linked to the detection of a companion star. Along with this paper, we make available all of the parameters and uncertainties in the eccentricity distributions, as well as the properties of individual systems, for use in future studies.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): planets and satellites: dynamical evolution and stability - planets and satellites: formation - planets and satellites: fundamental parameters - planets and satellites: terrestrial planets - stars: oscillations including pulsations

Simbad objects: 110

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Number of rows : 110
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 20782b Pl 03 20 03.5777546706 -28 51 14.660358176           ~ 76 1
2 KOI-1537.01 Pl? 18 45 50.8092404040 +46 47 23.609969304           ~ 18 0
3 KOI-1537 Er* 18 45 50.8092404040 +46 47 23.609969304   12.43 11.80 11.731   F6IV 55 0
4 HD 175289 PM* 18 52 36.1604006928 +45 08 23.345639700   9.95 9.50 9.44   F6IV 126 0
5 HD 175289b Pl 18 52 36.1604006928 +45 08 23.345639700           ~ 40 0
6 Kepler-1709b Pl 18 53 29.9567107464 +43 47 17.672249832           ~ 27 0
7 Kepler-1709 Er* 18 53 29.9567107464 +43 47 17.672249832   12.386 11.64 11.633   ~ 59 0
8 Kepler-1394b Pl 18 53 48.7635458640 +45 05 02.870367216           ~ 20 0
9 Kepler-1394 Er* 18 53 48.7635458640 +45 05 02.870367216   12.14 11.801 11.784   F4 40 0
10 KOI-4198 Ro* 18 55 24.7009592112 +45 29 06.899261928           ~ 24 0
11 KOI-1962 Er* 18 56 56.1556389974 +40 47 40.321484343   11.628 10.957 10.789   ~ 50 0
12 KOI-1962.01 Pl? 18 56 56.1556389974 +40 47 40.321484343           ~ 14 0
13 KOI-5578 Ro* 18 57 15.6432848016 +45 07 56.066969100   11.77 11.21 11.05   G2V 27 0
14 Kepler-1298 Er* 18 57 41.4591471432 +49 06 22.389043968   12.22 11.39 11.342   F5 47 0
15 Kepler-1298b Pl 18 57 41.4591471432 +49 06 22.389043968           ~ 19 0
16 Kepler-1656b Pl 18 57 53.3246033136 +39 54 42.531984144           ~ 52 0
17 Kepler-95b Pl 18 57 55.7883819888 +44 23 52.818842400           ~ 55 0
18 Kepler-95 Er* 18 57 55.7883819888 +44 23 52.818842400   13.313 12.481 12.268   G5V 102 0
19 Kepler-1274 Er* 18 58 22.4884396824 +46 26 59.170695648   12.466 11.910 11.659   F8V 59 0
20 Kepler-1274b Pl 18 58 22.4884396824 +46 26 59.170695648           ~ 20 0
21 Kepler-506 Er* 18 58 32.4434559048 +40 43 11.424080496   11.548 10.957 10.853   F7V 66 0
22 Kepler-506b Pl 18 58 32.4434559048 +40 43 11.424080496           ~ 28 0
23 HD 176693b Pl 18 59 08.6844743448 +48 25 23.600359776           ~ 44 0
24 HD 176693 Er* 18 59 08.6844743448 +48 25 23.600359776   9.34 8.83 8.996   F8V 148 0
25 KOI-2659 EB* 18 59 11.2579653744 +45 05 56.661130968   14.219 13.263 12.981   K2III 39 0
26 BD+46 2597b Pl? 19 00 18.6405916128 +46 25 10.605542124           ~ 17 0
27 Kepler-815 Er* 19 00 53.0659368264 +47 52 52.820511060   14.191 13.498 13.217   G5 49 0
28 Kepler-815b Pl 19 00 53.0659368264 +47 52 52.820511060           ~ 23 0
29 Kepler-907 EB* 19 01 54.3849990816 +41 37 57.917209008   12.017 11.549 11.483   F5V 59 0
30 Kepler-907b Pl 19 01 54.3849990816 +41 37 57.917209008           ~ 19 0
31 Kepler-4b Pl 19 02 27.6979514832 +50 08 08.703945600           ~ 105 1
32 Kepler-4 Er* 19 02 27.6979514832 +50 08 08.703945600   13.114 12.293 12.195   G0 119 1
33 KOI-268.01 Pl? 19 02 54.9120176040 +38 30 25.083958896           ~ 32 0
34 Kepler-407b Pl 19 04 08.7180702936 +49 36 52.219314504           ~ 42 0
35 Kepler-407 Er* 19 04 08.7180702936 +49 36 52.219314504   13.601 12.664 12.508   G7 90 0
36 Kepler-1349b Pl 19 05 21.2183375064 +48 44 38.766671808           ~ 20 0
37 KOI-3194 SB* 19 06 30.8578162488 +50 28 16.613392872   12.160 11.450 11.477   F7IV 34 0
38 Kepler-1655b Pl 19 06 45.4641571944 +39 12 42.966734328           ~ 35 0
39 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 349 2
40 KOI-3168.01 Pl? 19 09 15.5673202632 +39 32 17.487606444           ~ 18 0
41 Kepler-1713b Pl 19 09 22.9787972016 +43 22 42.207634092           ~ 24 0
42 KOI-5665 Ro* 19 09 25.1373672264 +45 56 55.180693104   12.06 11.27     ~ 29 0
43 HD 179070b Pl 19 09 26.8349590368 +38 42 50.455534860           ~ 76 1
44 HD 179070 Er* 19 09 26.8349590368 +38 42 50.455534860   8.767 8.25 8.00   F6IV 200 1
45 Kepler-467b Pl 19 09 27.0804703296 +38 38 58.492059000           ~ 24 0
46 Kepler-467 Er* 19 09 27.0804703296 +38 38 58.492059000       12.334   ~ 65 0
47 Kepler-454 PM* 19 09 54.8465617704 +38 13 43.922389152   12.38 11.57 11.467   ~ 87 0
48 Kepler-454b Pl 19 09 54.8465617704 +38 13 43.922389152           ~ 52 0
49 KOI-3165 Er* 19 10 33.0137584032 +46 12 15.847384140   11.006 10.420 10.387   F5 56 0
50 KOI-3165.01 Pl? 19 10 33.0137584032 +46 12 15.847384140           ~ 16 0
51 Kepler-510 Er* 19 10 37.1971512528 +39 14 39.414057504   12.84 12.07 11.987   G5V 74 0
52 Kepler-510b Pl 19 10 37.1971512528 +39 14 39.414057504           ~ 28 0
53 Kepler-14b Pl 19 10 50.110176 +47 19 58.87632           ~ 65 1
54 Kepler-14 ** 19 10 50.110176 +47 19 58.87632   12.360 12.093 12.078 11.65 F8IV 101 1
55 Kepler-7 Er* 19 14 19.5623105760 +41 05 23.367379128           G0 125 1
56 Kepler-7b Pl 19 14 19.5623105760 +41 05 23.367379128           ~ 222 1
57 Kepler-1392 Ro* 19 15 04.0717176144 +46 23 39.984204012           ~ 27 0
58 Kepler-22b Pl 19 16 52.1902276920 +47 53 03.948648180           ~ 95 1
59 Kepler-22 PM* 19 16 52.1902276920 +47 53 03.948648180   12.597 11.813 11.642   G5 109 1
60 Kepler-997 Er* 19 16 56.0158676328 +49 56 20.226151140   12.487 11.977 11.870   ~ 53 0
61 Kepler-997b Pl 19 16 56.0158676328 +49 56 20.226151140           ~ 20 0
62 Kepler-509 Er* 19 18 39.4600939944 +48 42 22.287851136   12.606 12.010 11.785   G0V 69 0
63 Kepler-509b Pl 19 18 39.4600939944 +48 42 22.287851136           ~ 30 0
64 KOI-5.01 Pl? 19 18 57.5306473320 +44 38 50.618934060           ~ 24 0
65 KOI-319.01 Pl? 19 20 28.2085336008 +44 52 22.548870588           ~ 25 0
66 KOI-319 Er* 19 20 28.2085336008 +44 52 22.548870588   13.043 12.226 12.136   G2V 69 0
67 Kepler-643b Pl 19 21 18.5544145224 +42 53 53.758935996           ~ 32 0
68 Kepler-643 Er* 19 21 18.5544145224 +42 53 53.758935996   15.090 14.116 13.702   K1IV 53 0
69 Kepler-540 PM* 19 22 30.0570200304 +44 52 26.212595772   13.097 12.298 12.204   G0V 59 0
70 Kepler-540b Pl 19 22 30.0570200304 +44 52 26.212595772           ~ 30 0
71 KOI-1964.01 Pl? 19 22 48.8885807784 +43 36 25.936829172           ~ 19 0
72 KOI-5782 RG* 19 25 27.1028474520 +47 19 43.408557228   12.415 11.541 11.336   K1III 44 0
73 BD+38 3583b Pl 19 25 40.3885404552 +38 40 20.413186860           ~ 121 0
74 BD+38 3583 Er* 19 25 40.3885404552 +38 40 20.413186860   10.73 10.00 9.853   G5V 148 0
75 BD+42 3339 Er* 19 25 59.3297612712 +42 43 42.485027700   11.427 10.872 10.742   F8V 88 1
76 BD+42 3339b Pl? 19 25 59.3297612712 +42 43 42.485027700           ~ 30 0
77 KOI-3202 Er* 19 26 01.7340498024 +39 19 25.168944864   12.788 11.918 11.742   ~ 41 0
78 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 343 1
79 BD+47 2846b Pl 19 28 59.3538826128 +47 58 10.217007804           ~ 415 1
80 Kepler-1002 Er* 19 32 19.0718118216 +43 04 25.469349132   12.239 11.790 11.632   G4V 64 0
81 Kepler-1002b Pl 19 32 19.0718118216 +43 04 25.469349132           ~ 20 0
82 Kepler-805 Er* 19 32 55.1876989488 +45 03 11.979046584   13.209 12.635 12.506   F8V 55 0
83 Kepler-805b Pl 19 32 55.1876989488 +45 03 11.979046584           ~ 30 0
84 Kepler-432 RG* 19 33 07.7290058280 +48 17 09.147604308   13.485 12.464 12.203   G5 98 0
85 Kepler-432b Pl 19 33 07.7290058280 +48 17 09.147604308           ~ 59 0
86 BD+46 2726 Er* 19 34 43.0022454096 +46 51 09.938179044   10.36 9.64 9.438   K0V 156 0
87 BD+46 2726b Pl 19 34 43.0022454096 +46 51 09.938179044           ~ 55 0
88 Kepler-1714b Pl 19 34 51.9513700320 +46 13 35.876312328           ~ 23 0
89 Kepler-1714 EB* 19 34 51.9513700320 +46 13 35.876312328   11.54 11.04 10.934   F7V 85 0
90 Kepler-108b Pl 19 38 14.20056 +46 03 44.3700           ~ 32 0
91 Kepler-464b Pl 19 39 20.4361754256 +48 58 56.492869800           ~ 29 0
92 Kepler-464 Er* 19 39 20.4361754256 +48 58 56.492869800   13.514 12.783 12.653   G3 63 0
93 KOI-2720 Er* 19 41 45.5177289912 +44 02 20.974556976   11.113 10.47 10.299   F8V 60 0
94 Kepler-450b Pl 19 41 56.7727769064 +51 00 48.582305136           ~ 39 0
95 BD+45 2960b Pl? 19 43 12.6574592352 +45 59 17.085937164           ~ 30 0
96 Kepler-806 Ro* 19 44 01.6984489272 +44 51 12.434489856   12.55 11.81     G4V 55 0
97 Kepler-910 Er* 19 44 11.3667063480 +42 44 34.765024740   11.974 11.699 11.540   F7V 53 0
98 Kepler-910b Pl 19 44 11.3667063480 +42 44 34.765024740           ~ 23 0
99 Kepler-96 EB* 19 48 16.7135669520 +40 31 30.523868868   11.130 10.436 10.233   G2V 101 0
100 Kepler-96b Pl 19 48 16.7135669520 +40 31 30.523868868           ~ 51 0
101 Kepler-1219 Er* 19 48 51.7936173072 +47 22 42.663605700   12.918 12.326 12.252   F6IV 48 0
102 Kepler-1219b Pl 19 48 51.7936173072 +47 22 42.663605700           ~ 20 0
103 KOI-2312 Er* 19 49 07.9638008832 +46 54 16.279708176   13.266 12.730 12.602   F2V 25 0
104 KOI-5086 EB* 19 49 16.1711714136 +39 52 40.724294556   12.24 11.01     G8IV 32 0
105 BD+47 2936 EB* 19 50 50.2472976936 +48 04 51.101390496       8.8   K4V 359 1
106 BD+47 2936b Pl 19 50 50.2472976936 +48 04 51.101390496           ~ 493 1
107 Kepler-911 Er* 19 54 21.4047577560 +40 45 02.514668688   12.18 11.77 12.912   F6IV 61 0
108 Kepler-911b Pl 19 54 21.4047577560 +40 45 02.514668688           ~ 24 0
109 Kepler-1838b Pl 19 55 58.0108236768 +40 08 32.701222824           ~ 20 0
110 Kepler-1876b Pl 19 56 38.5144499880 +41 08 37.428588312           ~ 22 0

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