2014ApJ...783L...6W


Query : 2014ApJ...783L...6W

2014ApJ...783L...6W - Astrophys. J., 783, L6 (2014/March-1)

The mass-radius relation for 65 exoplanets smaller than 4 earth radii.

WEISS L.M. and MARCY G.W.

Abstract (from CDS):

We study the masses and radii of 65 exoplanets smaller than 4 R with orbital periods shorter than 100 days. We calculate the weighted mean densities of planets in bins of 0.5 Rand identify a density maximum of 7.6 g/cm3 at 1.4 R. On average, planets with radii up to RP= 1.5 Rincrease in density with increasing radius. Above 1.5 R, the average planet density rapidly decreases with increasing radius, indicating that these planets have a large fraction of volatiles by volume overlying a rocky core. Including the solar system terrestrial planets with the exoplanets below 1.5 R, we find ρP= 2.43 + 3.39(RP/R) g/cm3 for RP< 1.5 R, which is consistent with rocky compositions. For 1.5 ≤ RP/R< 4, we find MP/M= 2.69(RP/R)0.93. The rms of planet masses to the fit between 1.5 and 4 Ris 4.3 Mwith reduced χ2 = 6.2. The large scatter indicates a diversity in planet composition at a given radius. The compositional diversity can be due to planets of a given volume (as determined by their large H/He envelopes) containing rocky cores of different masses or compositions.

Abstract Copyright:

Journal keyword(s): planets and satellites: composition - planets and satellites: fundamental parameters - planets and satellites: gaseous planets - planets and satellites: general - planets and satellites: terrestrial planets

Simbad objects: 66

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Number of rows : 66
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 CoRoT-7b Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 372 1
2 * rho01 Cnc e Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 465 1
3 HD 97658b Pl 11 14 33.1613362847 +25 42 37.391912066           ~ 158 1
4 NAME G 139-21b Pl 17 15 18.9337265994 +04 57 50.064695682           ~ 596 1
5 Kepler-94b Pl 18 44 46.7441195652 +47 29 49.746742707           ~ 42 0
6 Kepler-102e Pl 18 45 55.8561241973 +47 12 28.843506748           ~ 52 0
7 Kepler-102f Pl 18 45 55.8561241973 +47 12 28.843506748           ~ 28 0
8 Kepler-102c Pl 18 45 55.8561241973 +47 12 28.843506748           ~ 25 0
9 Kepler-102b Pl 18 45 55.8561241973 +47 12 28.843506748           ~ 28 0
10 Kepler-102d Pl 18 45 55.8561241973 +47 12 28.843506748           ~ 36 0
11 BD+44 3020b Pl 18 56 14.3077765754 +44 31 05.389239372           ~ 52 1
12 BD+44 3020d Pl 18 56 14.3077765754 +44 31 05.389239372           ~ 41 1
13 BD+44 3020c Pl 18 56 14.3077765754 +44 31 05.389239372           ~ 35 1
14 Kepler-95b Pl 18 57 55.7885359277 +44 23 52.817055529           ~ 41 0
15 HD 176693b Pl 18 59 08.6846510375 +48 25 23.598982331           ~ 32 0
16 Kepler-30b Pl 19 01 08.0746750853 +38 56 50.218666290           ~ 64 1
17 Kepler-98b Pl 19 02 38.7947937386 +37 57 52.199238546           ~ 32 0
18 Kepler-10b Pl 19 02 43.0613892904 +50 14 28.701617339           ~ 264 1
19 Kepler-407b Pl 19 04 08.7182403634 +49 36 52.217637834           ~ 28 0
20 Kepler-25b Pl 19 06 33.2143323702 +39 29 16.357969502           ~ 56 1
21 Kepler-97b Pl 19 09 18.3876122413 +48 40 24.365472961           ~ 32 0
22 Kepler-20b Pl 19 10 47.5234815840 +42 20 19.299357667           ~ 94 1
23 Kepler-20c Pl 19 10 47.5234815840 +42 20 19.299357667           ~ 85 1
24 Kepler-20d Pl 19 10 47.5234815840 +42 20 19.299357667           ~ 62 1
25 Kepler-113b Pl 19 11 59.4989980119 +50 56 39.667591092           ~ 33 0
26 Kepler-113c Pl 19 11 59.4989980119 +50 56 39.667591092           ~ 28 0
27 Kepler-131c Pl 19 14 07.4054715700 +40 56 32.325825113           ~ 27 0
28 Kepler-131b Pl 19 14 07.4054715700 +40 56 32.325825113           ~ 42 0
29 Kepler-103b Pl 19 15 56.2939568571 +40 03 52.285835449           ~ 39 0
30 Kepler-138 Ro* 19 21 31.5681629849 +43 17 34.680374646           M1V 93 0
31 Kepler-109c Pl 19 21 34.2535503144 +40 17 05.497631861           ~ 31 0
32 Kepler-109b Pl 19 21 34.2535503144 +40 17 05.497631861           ~ 32 0
33 BD+48 2893b Pl 19 24 07.7660110490 +49 02 24.928201112           ~ 79 1
34 BD+48 2893c Pl 19 24 07.7660110490 +49 02 24.928201112           ~ 48 1
35 Kepler-36b Pl 19 25 00.0430855076 +49 13 54.631289830           ~ 130 1
36 Kepler-36c Pl 19 25 00.0430855076 +49 13 54.631289830           ~ 105 1
37 Kepler-36 Ro* 19 25 00.0430855076 +49 13 54.631289830   12.66 11.94     ~ 187 1
38 Kepler-100b Pl 19 25 32.6433770205 +41 59 24.944182797           ~ 47 0
39 Kepler-100c Pl 19 25 32.6433770205 +41 59 24.944182797           ~ 42 0
40 Kepler-100d Pl 19 25 32.6433770205 +41 59 24.944182797           ~ 37 0
41 BD+38 3583b Pl 19 25 40.3886092719 +38 40 20.411344230           ~ 85 0
42 Kepler-406 Ro* 19 27 23.5375965213 +44 58 05.725246092           G5IV 53 0
43 Kepler-406c Pl 19 27 23.5375965213 +44 58 05.725246092           ~ 29 0
44 Kepler-406b Pl 19 27 23.5375965213 +44 58 05.725246092           ~ 46 0
45 BD+46 2726b Pl 19 34 43.0023412508 +46 51 09.934561072           ~ 38 0
46 Kepler-78b Pl 19 34 58.0139307295 +44 26 53.957326851           ~ 119 1
47 Kepler-96b Pl 19 48 16.7136858355 +40 31 30.522355499           ~ 38 0
48 Kepler-11f Pl 19 48 27.6228219845 +41 54 32.902654079           ~ 119 1
49 Kepler-11b Pl 19 48 27.6228219845 +41 54 32.902654079           ~ 135 1
50 Kepler-11c Pl 19 48 27.6228219845 +41 54 32.902654079           ~ 99 1
51 Kepler-11d Pl 19 48 27.6228219845 +41 54 32.902654079           ~ 106 1
52 Kepler-11 Ro* 19 48 27.6228219845 +41 54 32.902654079       14.00   G2V 315 1
53 Kepler-89b Pl 19 49 19.9344504805 +41 53 28.005888625           ~ 41 1
54 Kepler-99b Pl 19 49 24.9579519624 +41 18 00.212812886           ~ 40 0
55 Kepler-18b Pl 19 52 19.0688249829 +44 44 46.807526602           ~ 67 1
56 Kepler-48c Pl 19 56 33.4161532347 +40 56 56.496048906           ~ 56 1
57 Kepler-48d Pl 19 56 33.4161532347 +40 56 56.496048906           ~ 40 0
58 Kepler-48b Pl 19 56 33.4161532347 +40 56 56.496048906           ~ 46 1
59 Kepler-79e Pl 20 02 04.1057596467 +44 22 53.646600034           ~ 40 1
60 Kepler-79b Pl 20 02 04.1057596467 +44 22 53.646600034           ~ 44 1
61 Kepler-79c Pl 20 02 04.1057596467 +44 22 53.646600034           ~ 44 1
62 Kepler-79 Ro* 20 02 04.1057596467 +44 22 53.646600034   14.55 13.98 14.00   ~ 96 1
63 Kepler-106d Pl 20 03 27.3499849021 +44 20 15.190864304           ~ 24 0
64 Kepler-106c Pl 20 03 27.3499849021 +44 20 15.190864304           ~ 43 0
65 Kepler-106e Pl 20 03 27.3499849021 +44 20 15.190864304           ~ 34 0
66 Kepler-106b Pl 20 03 27.3499849021 +44 20 15.190864304           ~ 23 0

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2021.11.30-01:17:12

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