2026ApJS..282...37S

Query : 2026ApJS..282...37S

2026ApJS..282...37S - Astrophys. J., Suppl. Ser., 282, 37 (2026/February-0)

JWST Exoplanetary Worlds and Elemental Survey (JEWELS). I. High-precision Chemical Abundances of 20 FGK Planet-hosting Stars from JWST Cycle 2.

SUN Q.

Abstract (from CDS):

We present high-precision chemical abundances for 20 FGK stars hosting planets observed in JWST Cycle 2 GO programs. Using high-resolution, high-signal-to-noise ratio spectra from the ESO and Keck archives, we perform a strict line-by-line differential analysis relative to the Sun to derive stellar parameters and abundances of 19 elements from C to Zn. The stars span effective temperatures of 4500-6500 K and metallicities from -0.57 to +0.50 dex. The sample includes hosts of both gas giants and terrestrial planets, allowing direct comparison between stellar composition and planetary properties. Several of the giant planets orbit metal-rich stars. The detailed abundance patterns show clear chemical diversity, including carbon-enhanced but mildly metal-poor stars (TOI-824, TOI-561, TOI-1130, GJ 9827) and α-enhanced metal-poor stars (TOI-561, GJ 9827, TOI-824). These variations trace differences in protoplanetary disk composition and may influence planetary interiors and atmospheric chemistry. The planet hosts show a range of [C/O] ratios, and the diverse [Mg/Si] ratios may suggest varied interior compositions for their rocky planets. This homogeneous stellar abundance, together with future uniform JWST planetary atmosphere measurements, provides a foundation for exploring the planet mass-metallicity relation and the connection between stellar chemistry and planetary formation pathways. These results constitute the first step in a larger survey spanning multiple JWST cycles to systematically examine how host star composition shapes exoplanetary systems.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): James Webb Space Telescope - Exoplanet astronomy - Exoplanet atmospheric composition - Planet hosting stars - Chemical abundances - Star-planet interactions

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 94

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Number of rows : 94
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 WASP-96b Pl 00 04 11.1376764240 -47 21 38.320831728           ~ 94 0
2 NAME G 268-38b Pl 00 44 59.3309137511 -15 16 17.542839990           ~ 237 0
3 NAME LSPM J0106+1913c Pl 01 06 36.9754315896 +19 13 33.163383396           ~ 16 0
4 LSPM J0106+1913b Pl 01 06 36.9754315896 +19 13 33.163383396           ~ 21 0
5 GJ 3090 b Pl 01 21 45.3901703856 -46 42 51.764974020           ~ 24 0
6 TOI-125c Pl 01 34 22.7341114800 -66 40 32.951081784           ~ 21 0
7 TOI-125b Pl 01 34 22.7341114800 -66 40 32.951081784           ~ 17 0
8 TOI-125d Pl 01 34 22.7341114800 -66 40 32.951081784           ~ 19 0
9 TOI-125 PM* 01 34 22.7341114800 -66 40 32.951081784   11.72 11.02     ~ 38 0
10 HD 10069 SB* 01 37 25.0332798696 -45 40 40.374717456   9.74 9.30     F6IV/V 260 1
11 HD 10069b Pl 01 37 25.0332798696 -45 40 40.374717456           ~ 444 1
12 TOI-2445b Pl 02 53 15.8178350377 +00 03 08.779046896           ~ 13 0
13 NAME G 245-61b Pl 02 57 18.2595506687 +76 33 11.253543067           ~ 41 0
14 HATS-75b Pl 04 03 47.8393409760 -25 24 32.089835892           ~ 23 0
15 NAME L 231-32d Pl 04 33 39.7200127728 -51 57 22.435373160           ~ 128 0
16 NAME L 231-32b Pl 04 33 39.7200127728 -51 57 22.435373160           ~ 49 0
17 NAME PM J04343+4302b Pl 04 34 22.4953034088 +43 02 14.692100424           ~ 45 0
18 * 51 Eri PM* 04 37 36.1326090888 -02 28 24.775726260   5.486 5.209     F0IV 285 0
19 * 51 Eri b Pl 04 37 36.1326090888 -02 28 24.775726260           ~ 238 0
20 TOI-3714b Pl 04 38 12.5354290272 +39 27 29.909322841           ~ 28 0
21 HD 33643b Pl 05 13 10.9289282640 +33 19 05.400733872           ~ 85 0
22 HD 33643 PM* 05 13 10.9289282640 +33 19 05.400733872 9.010 8.97 8.540   8.129 F2 78 0
23 HD 36112 Ae* 05 30 27.5285630040 +25 19 57.076288752   8.57 8.27     A8Ve 551 0
24 HATS-6b Pl 05 52 35.2366980288 -19 01 53.970810276           ~ 67 0
25 TOI-3757b Pl 06 04 00.8904203305 +55 01 12.593823805           ~ 24 0
26 HD 260655b Pl 06 37 10.7988015297 +17 33 53.333221083           ~ 23 0
27 CD-38 3220 * 07 10 24.0604565856 -39 05 50.571250476   11.00 10.51     F6V 145 0
28 CD-38 3220b Pl 07 10 24.0604565856 -39 05 50.571250476           ~ 421 0
29 L 34-26 B BD* 07 51 08.74800 -76 34 50.2968           T9 43 0
30 NAME G 50-16b Pl 08 02 22.8829177661 +03 20 19.691170937           ~ 30 0
31 BD+06 1909b Pl 08 15 47.9802408792 +05 50 12.350816484           ~ 73 1
32 BD+06 1909 Em* 08 15 47.9802408792 +05 50 12.350816484   10.95 10.35     F7 85 1
33 NAME L 98-59 d Pl 08 18 07.6214406393 -68 18 46.805365587           ~ 98 0
34 NAME L 98-59 c Pl 08 18 07.6214406393 -68 18 46.805365587           ~ 86 0
35 NAME L 98-59 b Pl 08 18 07.6214406393 -68 18 46.805365587           ~ 67 0
36 NAME L 678-39b Pl 09 36 01.6372169407 -21 39 38.877606712           ~ 86 0
37 TOI-561b Pl 09 52 44.5491687624 +06 12 58.920960204           ~ 61 0
38 TOI-561 MS* 09 52 44.5491687624 +06 12 58.920960204   10.909 10.243 10.065   ~ 65 0
39 NAME G 162-44b Pl 10 18 35.1372361341 -11 43 00.243355403           ~ 44 0
40 NAME G 162-44c Pl 10 18 35.1372361341 -11 43 00.243355403           ~ 50 0
41 WASP-43b Pl 10 19 38.0088913464 -09 48 22.605801336           ~ 442 1
42 NAME L 248-27b Pl 10 26 59.4940030876 -52 28 09.944352049           ~ 26 0
43 K2-22b Pl 11 17 55.8772962552 +02 37 08.603363784           ~ 69 0
44 TWA 27B BD* 12 07 33.50 -39 32 54.4           L3 321 0
45 HD 106315 * 12 13 53.3962381416 -00 23 36.553445304   9.402 8.951     F5V 62 0
46 HD 106315c Pl 12 13 53.3962381416 -00 23 36.553445304           ~ 49 0
47 WASP-107b Pl 12 33 32.8441110816 -10 08 46.225572324           ~ 289 0
48 SIPS J1256-1257B BD* 12 56 01.83264 -12 57 27.6912           L7 154 0
49 * e Vir PM* 13 16 46.5148594512 +09 25 26.960139646   5.81   4.8   G0IV 590 1
50 * e Vir b Pl 13 16 46.5148594512 +09 25 26.960139646           ~ 127 1
51 HD 116434C BD* 13 24 36.13 -51 30 16.7           L5-7 123 1
52 NAME UPM J1349-4603b Pl 13 49 53.9776609320 -46 03 58.454133372           ~ 21 0
53 CD-31 10766b Pl 13 55 42.7120177608 -32 09 34.616222028           ~ 84 1
54 CD-31 10766 * 13 55 42.7120177608 -32 09 34.616222028   11.396 10.910     F7 89 1
55 CD-30 11338 * 14 20 29.4891293064 -31 12 07.437166416   11.410 10.961     F5V 24 0
56 CD-30 11338b Pl 14 20 29.4891293064 -31 12 07.437166416           ~ 19 0
57 WASP-39b Pl 14 29 18.4151689656 -03 26 40.204480380           ~ 345 1
58 SCR J1448-5735 PM* 14 48 39.8126986608 -57 35 17.557434564   12.263 11.153 10.820 9.92 K4V 25 0
59 NAME SCR J1448-5735b Pl 14 48 39.8126986608 -57 35 17.557434564           ~ 28 0
60 TOI-3984b Pl 15 05 20.9784000702 +36 47 12.447727688           ~ 13 0
61 * 14 Her c Pl 16 10 24.3156759007 +43 49 03.507406809           ~ 25 1
62 * 14 Her PM* 16 10 24.3156759007 +43 49 03.507406809   7.57   6.1   K0V 482 1
63 TOI-2124b Pl 17 53 13.0489562760 +37 12 42.586493328           ~ 228 2
64 Kepler-12b Pl 19 04 58.4220633696 +50 02 25.271762064           ~ 97 1
65 Kepler-12 Er* 19 04 58.4220633696 +50 02 25.271762064   13.96   13.68   G0 97 1
66 TOI-1130b Pl 19 05 30.2235431880 -41 26 15.077969016           ~ 29 0
67 TOI-1130 * 19 05 30.2235431880 -41 26 15.077969016   12.42 11.59     ~ 60 0
68 TOI-1130c Pl 19 05 30.2235431880 -41 26 15.077969016           ~ 32 0
69 Kepler-86b Pl 19 19 03.2633425368 +51 57 45.409948812           ~ 45 1
70 Kepler-86 Ro* 19 19 03.2633425368 +51 57 45.409948812           F9 54 1
71 NAME LHS 475b Pl? 19 20 54.3761245172 -82 33 16.167893610           ~ 36 0
72 BD+47 2936b Pl 19 50 50.2472976936 +48 04 51.101390496           ~ 493 1
73 TOI-1899b Pl 19 57 42.3954352512 +40 08 35.754385020           ~ 26 0
74 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
75 WASP-80b Pl 20 12 40.1693365800 -02 08 39.187438476           ~ 180 1
76 TOI-5205b Pl 20 55 04.9163832653 +24 21 38.710082580           ~ 25 0
77 NAME CD-34 14724Ab Pl 20 55 07.9443524136 -34 08 08.007489384           ~ 51 0
78 CD-34 14724A PM* 20 55 07.9443524136 -34 08 08.007489384   10.74 10.05 10.17 9.774 F8 94 0
79 BD-05 5432b Pl 21 00 06.1968214728 -05 05 40.034944176           ~ 219 1
80 BD-05 5432 PM* 21 00 06.1968214728 -05 05 40.034944176   10.93 9.87     ~ 103 1
81 HAT-P-65b Pl 21 03 37.3130781288 +11 59 21.819803748           ~ 29 0
82 WASP-47 * 22 04 48.7261549272 -12 01 07.998743676     11.99 11.82   ~ 217 1
83 WASP-47e Pl 22 04 48.7261549272 -12 01 07.998743676           ~ 98 0
84 NAME L 119-213b Pl 22 41 58.1171811377 -69 10 08.320741850           ~ 146 0
85 NAME BD+37 4734Bb Pl 22 57 46.8442481880 +38 40 30.358351704           ~ 268 1
86 TRAPPIST-1b Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 380 0
87 TRAPPIST-1c Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 282 0
88 WASP-52 * 23 13 58.7576098848 +08 45 40.572305352   12.9 12.0 12.03   K2V 106 1
89 WASP-52b Pl 23 13 58.7576098848 +08 45 40.572305352           ~ 155 1
90 BD-02 5958 PM* 23 27 04.8376907739 -01 17 10.582653030   11.57 10.10 10.09 8.89 K6V 110 0
91 BD-02 5958d Pl 23 27 04.8376907739 -01 17 10.582653030           ~ 82 0
92 TOI-5293b Pl 23 43 18.9014032317 -02 02 42.347761471           ~ 12 0
93 CD-38 15670 PM* 23 54 40.2073116552 -37 37 40.524416508   10.55 9.76     G7V 61 0
94 CD-38 15670b Pl 23 54 40.2073116552 -37 37 40.524416508           ~ 79 0

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