2021MNRAS.504.5788R

Query : 2021MNRAS.504.5788R

2021MNRAS.504.5788R - Mon. Not. R. Astron. Soc., 504, 5788-5805 (2021/July-2)

Characterization of 92 southern TESS candidate planet hosts and a new photometric [Fe/H] relation for cool dwarfs.

RAINS A.D., ZERJAL M., IRELAND M.J., NORDLANDER T., BESSELL M.S., CASAGRANDE L., ONKEN C.A., JOYCE M., KAMMERER J. and ABBOT H.

Abstract (from CDS):

We present the results of a medium-resolution optical spectroscopic survey of 92 cool (3000 K≲T_ eff_ ≲4500K) southern TESS candidate planet hosts, and describe our spectral fitting methodology used to recover stellar parameters. We quantify model deficiencies at predicting optical fluxes, and while our technique works well for Teff, further improvements are needed for [Fe/H]. To this end, we developed an updated photometric [Fe/H] calibration for isolated main-sequence stars built upon a calibration sample of 69 cool dwarfs in binary systems, precise to ±0.19dex, from supersolar to metal poor, over 1.51 < Gaia (BP - RP) < 3.3. Our fitted Teff and R* have median precisions of 0.8 per cent and 1.7 per cent, respectively, and are consistent with our sample of standard stars. We use these to model the transit light curves and determine exoplanet radii for 100 candidate planets to 3.5 per cent precision and see evidence that the planet radius gap is also present for cool dwarfs. Our results are consistent with the sample of confirmed TESS planets, with this survey representing one of the largest uniform analyses of cool TESS candidate planet hosts to date.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): techniques: spectroscopic - planets and satellites: fundamental parameters - stars: fundamental parameters - stars: low-mass

Simbad objects: 105

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Number of rows : 105
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 CD-55 9423 PM* 00 00 44.9091865512 -54 49 49.852301232   12.29 11.13 10.677   K4V 40 0
2 CD-27 16 PM* 00 09 04.3584267491 -27 07 19.678692956 14.332 13.184 11.670 10.729 9.763 M0V 76 0
3 TOI-234 * 00 10 16.4978070960 -26 16 56.626483908       15.957   M0.5V 6 0
4 TOI-142 * 00 18 25.3920722160 -62 50 52.431800172           ~ 5 0
5 BD-10 47 MS* 00 19 05.5623884247 -09 57 53.468670700 12.434 11.246 9.897 9.061 8.311 M0V 78 0
6 TOI-178b Pl 00 29 12.3029193648 -30 27 13.466857032           ~ 29 0
7 TOI-178d Pl 00 29 12.3029193648 -30 27 13.466857032           ~ 20 0
8 WT 2353 PM* 00 29 12.3029193648 -30 27 13.466857032   13.05 11.95     ~ 102 0
9 G 267-158 PM* 00 42 16.9405469664 -36 43 05.414977812   14.210 12.693 12.359   M2V 31 0
10 NAME G 268-38c Pl 00 44 59.3309137511 -15 16 17.542839990           ~ 95 0
11 G 268-38 PM* 00 44 59.3309137511 -15 16 17.542839990     14.150 13.801 11.19 M4.5V 197 0
12 TOI-249 PM* 00 56 19.3007867544 -38 56 55.334419332   13.99 12.67 12.22 11.04 ~ 13 0
13 CD-52 187 PM* 00 57 16.2696843288 -51 35 04.713843444   12.080 10.762 10.435 9.14 M0V 31 0
14 CD-44 266 * 00 59 01.1388280896 -44 09 38.965254696   13.058 11.878 11 10.461 ~ 15 0
15 TOI-302 PM* 01 09 55.3873839604 -52 14 22.099271614   15.574 14.248 13.867   ~ 3 0
16 CD-47 399 PM* 01 21 45.3901703856 -46 42 51.764974020 14.103 12.893 11.403 10.426 9.31 M3V 62 0
17 CD-32 992 * 02 44 45.2387934912 -32 12 39.266734932   12.82 12.04     ~ 12 0
18 PM J02489-1432W PM* 02 48 59.2728446101 -14 32 14.942011299       12.677 10.72 M2.0 40 0
19 UPM J0252-6741 PM* 02 52 04.4900042256 -67 41 15.569403216   16.73 15.05 14.82   ~ 15 0
20 BD-17 588A PM* 03 01 51.3936681048 -16 35 36.031178525 13.444 12.191 10.529 9.364 7.887 M3V 113 0
21 LP 994-39 PM* 03 03 37.4336012352 -39 55 51.458135448   13.658 12.537 12.239 11.11 ~ 9 0
22 LP 994-91 PM* 03 17 02.9761531523 -42 14 32.537542994     13.793 13.510   M3 22 0
23 LEHPM 3494 PM* 03 44 42.0486645720 -65 11 56.791939200   14.736 13.344 12.928   ~ 12 0
24 LEHPM 3519 PM* 03 46 56.2376260104 -63 20 14.282693196           ~ 10 0
25 LP 714-56 PM* 03 56 04.1207328456 -10 16 19.305856488     13.64     K7V 16 0
26 TOI-435 * 03 57 38.5203617123 -25 11 23.917014482   15.740 14.378 14.029   ~ 4 0
27 TOI-552 * 04 03 47.8393409760 -25 24 32.089835892   17.120 15.759 15.510   M0.5V 19 0
28 TOI-711 * 04 10 03.8586541704 -61 56 32.862876072     12.885 12.589   ~ 10 0
29 TOI-870 PM* 04 13 16.4572947048 -50 56 40.120338768   13.97 12.54 12.05 10.60 ~ 14 0
30 TOI-806 PM* 04 13 40.0377820046 -76 05 51.695089668   14.664 13.351 12.964   ~ 7 0
31 G 160-62 PM* 04 16 45.6004345224 -12 05 02.454740268   14.3 12.492 12.104   M1V 51 0
32 L 375-2 PM* 04 32 42.6349227751 -39 47 12.150012739   13.5 12.482 12.131 10.26 M2.0 55 0
33 L 231-32 PM* 04 33 39.7200127728 -51 57 22.435373160     12.617 12.147   M3.0V 83 0
34 TOI-555 * 04 41 21.5506000450 -32 19 12.904462773       15.890   M1.5V 11 0
35 TOI-285 PM* 04 58 47.3141842560 -56 23 38.604254244   15.147 13.716 13.493   ~ 6 0
36 TOI-269 PM* 05 03 23.0610114456 -54 10 37.924879404   15.969 14.410 13.920   M2 20 0
37 1RXS J050514.2-475625 PM* 05 05 14.4284259960 -47 56 15.526276908   15.960 14.365 14.157   ~ 36 0
38 TOI-875 PM* 05 12 08.9038632552 -37 42 31.251763836   13.81 12.61 12.27 11.20 ~ 12 0
39 TOI-864 PM* 05 25 46.6188501072 -51 21 25.391261304   15.29 13.73 13.31 11.26 ~ 10 0
40 HD 290498 PM* 05 29 09.5817162984 -00 20 33.225238104   11.89 10.78     K7V 26 0
41 NGTS-1 PM* 05 30 51.4522649760 -36 37 50.895680268   16.94 15.57 15.36 13.97 M0.5V 27 0
42 TOI-1082 * 05 33 06.2598020964 -80 48 56.428557776   14.620 13.271 12.923   ~ 4 0
43 LP 837-48 PM* 05 36 26.1237865488 -24 14 37.879070712     13.18     M0.5V 12 0
44 TOI-532 * 05 40 19.1883815811 +11 33 46.083967315   15.856 14.413 13.958   M0V 22 0
45 TOI-475 PM* 05 46 59.5234050792 -32 31 59.125754928           ~ 9 0
46 TOI-1216 PM* 05 50 51.4098221232 -75 41 20.075937828   14.137 12.867 12.447   ~ 12 0
47 SCR J0550-7637 PM* 05 50 56.6724523896 -76 37 13.045760724   15.82   13.89 12.26 ~ 15 0
48 HATS-6 * 05 52 35.2366980288 -19 01 53.970810276   16.664 15.160     M1V 36 0
49 HATS-6b Pl 05 52 35.2366980288 -19 01 53.970810276           ~ 67 0
50 WOH G 612 PM* 05 53 20.9874339528 -65 38 02.185478232   14.780 13.300 12.947   M 14 0
51 TOI-210 PM* 05 55 50.5405308960 -73 59 04.879506912           ~ 12 0
52 TOI-904 PM* 05 57 29.3542399200 -83 07 48.734384700           ~ 18 0
53 L 181-1 PM* 06 04 20.3587517402 -55 18 46.838313863   13.60 12.14     M2.5V 76 0
54 TOI-714 PM* 06 09 34.0176986328 -53 49 24.545251991   14.814 13.344 12.913   ~ 11 0
55 TOI-932 PM* 06 23 45.8987115696 -54 34 41.430815868   12.98 12.24     ~ 13 0
56 TOI-700 PM* 06 28 23.2285331376 -65 34 45.520447908   14.524 13.076 12.659 10.70 M2V 84 0
57 L 182-44 PM* 06 33 49.9711873177 -58 31 42.450688727 14.322 13.11 11.57 11.22 9.22 M2.5V 75 0
58 TOI-713 PM* 06 48 05.1778184520 -65 37 25.388939604   13.122 11.922     ~ 20 0
59 TOI-797 PM* 07 14 14.8165240224 -74 36 09.160669692   15.170 13.689 13.368   M 19 0
60 TOI-969 Em* 07 40 32.8397895312 +02 05 56.124745152   12.74 11.65     K5 23 0
61 L 61-23 PM* 07 41 04.4359676232 -71 18 15.848771364   14.0       M 17 0
62 TOI-493 Em* 07 58 30.7049654247 +12 53 00.438101731   13.997 12.729 12.262   M0V 8 0
63 TOI-507 PM* 08 06 31.0477913288 -15 45 52.647880512   17.173 15.659 15.399   M4V 8 0
64 TOI-521 PM* 08 13 22.5260103168 +12 13 18.336380520           M2V 13 0
65 L 98-59 PM* 08 18 07.6214406393 -68 18 46.805365587   13.22 11.685 11.294 9.25 M3V 135 0
66 TOI-727 PM* 08 42 56.8400888736 -02 29 53.046332772           ~ 12 0
67 HD 304636 PM* 09 21 37.6015398425 -60 16 55.030018583 12.145 10.955 9.465 8.517 7.511 M0V 96 0
68 G 161-32 PM* 09 28 41.5890982465 -12 09 55.752657397   13.70 12.262 11.899   M2.5V 35 0
69 L 678-39 PM* 09 36 01.6372169407 -21 39 38.877606712 13.647 12.48 10.906 9.858 8.577 M2.5V 213 0
70 BPM 5856 PM* 09 42 35.2651310448 -62 28 34.425510888   14.00 11.724 11.269   M0V 23 0
71 CD-45 5378 PM* 09 44 29.8367689785 -45 46 35.427639685 12.278 11.372 9.979 9.019 7.829 M1V 134 0
72 G 162-44 PM* 10 18 35.1372361341 -11 43 00.243355403   14.68 13.14 12.84   M4.0 98 0
73 WASP-43 PM* 10 19 38.0088913464 -09 48 22.605801336   13.782 12.490 12.022 11.10 K7V 182 1
74 WASP-43b Pl 10 19 38.0088913464 -09 48 22.605801336           ~ 442 1
75 WT 1825 PM* 10 40 15.9529520592 -08 30 38.608979508   15.5       ~ 15 0
76 TOI-674 PM* 10 58 20.9850496085 -36 51 29.136045782   15.742 14.203 13.914   ~ 23 0
77 G 163-31 PM* 10 58 53.7891219144 -05 32 47.036540832   15.8       ~ 20 0
78 TOI-672 PM* 11 11 57.6933912576 -39 19 40.059888672   15.094 13.576 13.171 11.469 ~ 16 0
79 Ross 128 PM* 11 47 44.3972681420 +00 48 16.400337591 14.223 12.905 11.153 9.859 8.184 dM4 484 0
80 TOI-761 PM* 11 57 03.2659195584 -38 06 16.977320172           ~ 8 0
81 TOI-782 PM* 12 15 41.0655809604 -18 54 36.648810142   16.359 14.830 14.306   ~ 9 0
82 WT 351 PM* 12 48 25.2161376936 -45 28 14.147959404   14.5       M1V 14 0
83 SCR J1448-5735 PM* 14 48 39.8126986608 -57 35 17.557434564   12.263 11.153 10.820 9.92 K4V 25 0
84 CD-23 12010 PM* 15 00 19.3983970152 -24 27 14.693874372   11.15 9.937 9.843   K7V 53 0
85 L 20-1 PM* 15 17 21.6723198249 -80 28 22.585666195     12.670 12.337   M3 14 0
86 TOI-900 PM* 16 23 37.3390371120 -31 22 23.050222171       12.917   ~ 6 0
87 K2-32b Pl 16 49 42.2601799152 -19 32 34.151379684           ~ 36 0
88 TOI-1130 * 19 05 30.2235431880 -41 26 15.077969016   12.42 11.59     ~ 60 0
89 TOI-1073 * 19 09 56.2502323224 -49 39 53.868188952           ~ 11 0
90 HATS-48b Pl 19 14 41.2746757776 -59 34 45.757148016           ~ 10 0
91 HATS-48 * 19 14 41.2746757776 -59 34 45.757148016   15.58 14.35 14.05   ~ 11 0
92 L 22-69 PM* 19 20 54.3761245172 -82 33 16.167893610   14.4 12.69 11.51 10.00 M3.5V 51 0
93 L 210-70 PM* 20 27 42.0813992356 -56 27 25.151894071     12.20 11.83 9.93 M2.5V 58 0
94 TOI-1075 PM* 20 39 53.3385084312 -65 26 57.987806640   14.13 12.72 12.28 10.96 ~ 20 0
95 LP 816-60 PM* 20 52 33.0166041464 -16 58 29.003281943 14.094 13.029 11.458 10.251 8.658 M4V 135 0
96 WT 880 PM* 22 11 47.2993627416 -58 56 42.251593524   16.0       ~ 23 0
97 CD-35 15313 * 22 25 36.5462973720 -34 54 34.496110728   11.6 10.4     K5V 32 0
98 L 119-213 PM* 22 41 58.1171811377 -69 10 08.320741850   17.3 15.26 13.74 11.88 ~ 73 0
99 NAME L 119-213b Pl 22 41 58.1171811377 -69 10 08.320741850           ~ 146 0
100 LP 821-31 PM* 22 54 50.4142163775 -18 54 42.581503818     13.354 13.044   M2.5V 23 0
101 HD 219617 ** 23 17 05.04375 -13 51 03.5971 8.41 8.60 8.14 7.70 7.37 F8 317 0
102 HD 219617C PM* 23 17 06.0291829033 -13 50 52.312237646   19.29 16.96 16.67   esdM3 29 1
103 CD-60 8051 PM* 23 20 07.5245143451 -60 03 54.644648069   12.45 11.02 10.584   M2V 69 0
104 SCR J2337-5857 PM* 23 37 34.9757903976 -58 57 16.690330548   12.67 11.55 9.83 8.84 ~ 11 0
105 NAME Local Bubble ISM ~ ~           ~ 1059 0

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