2020A&A...636A...9A

Query : 2020A&A...636A...9A

2020A&A...636A...9A - Astronomy and Astrophysics, volume 636A, 9-9 (2020/4-1)

ODUSSEAS: a machine learning tool to derive effective temperature and metallicity for M dwarf stars.

ANTONIADIS-KARNAVAS A., SOUSA S.G., DELGADO-MENA E., SANTOS N.C., TEIXEIRA G.D.C. and NEVES V.

Abstract (from CDS):


Aims. The derivation of spectroscopic parameters for M dwarf stars is very important in the fields of stellar and exoplanet characterization. The goal of this work is the creation of an automatic computational tool able to quickly and reliably derive the Teff and [Fe/H] of M dwarfs using optical spectra obtained by different spectrographs with different resolutions.
Methods. ODUSSEAS (Observing Dwarfs Using Stellar Spectroscopic Energy-Absorption Shapes) is based on the measurement of the pseudo equivalent widths for more than 4000 stellar absorption lines and on the use of the machine learning Python package "scikit-learn" for predicting the stellar parameters.
Results. We show that our tool is able to derive parameters accurately and with high precision, having precision errors of ∼30K for Teff and ∼0.04dex for [Fe/H]. The results are consistent for spectra with resolutions of between 48000 and 115000 and a signal-to-noise ratio above 20.

Abstract Copyright: © ESO 2020

Journal keyword(s): stars: fundamental parameters - stars: atmospheres - stars: late-type - methods: data analysis - techniques: spectroscopic

Simbad objects: 120

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Number of rows : 120
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HD 225213 Er* 00 05 24.4284351777 -37 21 26.507931505 11.074 10.022 8.562 7.589 6.432 M2V 206 0
2 G 32-5 PM* 00 15 49.2423147549 +13 33 22.316274483   14.0 12.600 12.296 10.04 M4V 65 0
3 L 363-38 PM* 00 43 26.0024468033 -41 17 34.027542502   14.0 11.51 12.653   M5 39 0
4 V* YZ Cet Er* 01 12 30.6368826382 -16 59 56.358011559 15.315 13.885 12.074 10.696 8.938 M4.0Ve 264 0
5 G 272-10 PM* 01 23 18.0289880193 -12 56 22.856085841   13.78 13.009 12.733 10.05 M3.0 19 0
6 BD+02 348 PM* 02 12 20.9873991153 +03 34 32.232373243 12.552 11.477 10.042 9.092 7.988 M1V 183 0
7 L 657-32 PM* 02 28 31.9358000047 -20 02 26.166781018   14.44 12.856 12.465   M2.5V 30 0
8 HD 15468 PM* 02 29 01.7272353987 -19 58 45.052028054 10.991 9.928 8.767 8.066 7.445 K4.5Vk 61 0
9 V* BX Cet BY* 02 36 15.2668724487 +06 52 17.915599626   13.28   11.405   M3.5V 186 1
10 CD-23 1056 PM* 02 46 42.8869269570 -23 05 11.802392748 12.911 11.651 10.237 9.36 8.544 K5V 65 1
11 L 442-13 PM* 02 54 02.3006592642 -35 54 52.917387140   14.47 12.97 12.691 10.46 M3: 29 0
12 HD 18168 PM* 02 54 02.7864341651 -35 54 16.878894538   9.19 8.25     K3V 76 0
13 L 802-6 PM* 02 58 10.2284360866 -12 53 06.002343593   14.40 12.669 12.258   sdM3.0 47 0
14 BD-17 588 ** 03 01 51.3895517 -16 35 36.110284           M3.5+M3.0 50 0
15 V* CD Cet BY* 03 13 22.9175070353 +04 46 29.336548127   15.61 14.001 13.650   M4.5V 135 0
16 CD-45 1184 PM* 03 32 55.8571843517 -44 42 07.003848215 14.277 13.063 11.478 10.399 9.062 M2.5V 59 0
17 L 372-58 PM* 03 35 59.6991613260 -44 30 45.730830569 16.22 14.98 13.07 11.45 9.47 M5.5V 114 0
18 G 160-28 Er* 03 50 44.2893983103 -06 05 41.628583585   14.48 12.843 12.498   M3V 66 0
19 HD 24916 Er* 03 57 28.6990190160 -01 09 34.070478444 10.224 9.166 8.014 7.336 6.724 K4V 140 0
20 HD 24916B SB* 03 57 28.9028289504 -01 09 23.485386744   13.00 11.48 11.030   M2.5V 63 0
21 L 229-91 PM* 04 09 15.6683376139 -53 22 25.290024815 14.397 13.302 11.811 10.734 9.32 M3.5 97 2
22 HD 286955 SB* 04 39 42.6085688547 +09 52 19.451382322   10.23   8.5   K3 51 0
23 G 83-29 PM* 04 39 43.2612804472 +09 51 46.744319477   14.6   12.5   M3.04 32 0
24 HD 285968 PM* 04 42 55.7750207949 +18 57 29.395947044 12.668 11.49 9.951 8.931 7.702 M2.5V 335 2
25 Wolf 1539 PM* 04 52 05.7321216445 +06 28 35.588676189 14.791 13.568 12.018 10.854 9.334 M2V 158 1
26 LP 656-38 Er* 05 01 57.4261317472 -06 56 46.376281497   13.92 12.196 11.791 9.175 M4.0Ve 142 0
27 LP 776-46 PM* 05 03 20.0844829328 -17 22 24.721336910 14.612 13.371 11.735 10.603 9.192 M3V 107 0
28 HD 33793 PM* 05 11 40.5898395497 -45 01 06.361734876 11.624 10.433 8.853 7.9 6.899 M1VIp 336 0
29 Ross 41 PM* 05 28 00.1514481321 +09 38 38.155965013 15.341 14.082 12.443 11.272 9.788 M3.5V 117 0
30 HD 36395 PM* 05 31 27.3957852161 -03 40 38.024004501 10.626 9.443 7.968 6.996 5.913 M1.5Ve 515 0
31 Ross 47 BY* 05 42 09.2676872099 +12 29 21.604835564 14.264 13.130 11.509 10.298 8.709 M4V 268 0
32 HD 42581 Er* 06 10 34.6149358167 -21 51 52.656352926 10.801 9.607 8.125 7.164 6.121 M1V 478 0
33 L 32-9 Er* 06 33 43.2774403031 -75 37 47.956289488   11.87 10.484 10.170   M2V 59 0
34 L 32-8 Er* 06 33 46.7652016936 -75 37 29.903734451   12.88 11.419 11.106   M3V 48 0
35 G 108-21 PM* 06 42 11.1940786992 +03 34 52.623903432       11.638   M3V 70 1
36 HD 50281B ** 06 52 18.0415140183 -05 11 24.042331473   11.47 10.05 9.870   M2.5V 123 0
37 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 418 0
38 LP 783-1 PM* 07 38 40.9604136679 -21 13 28.481879881 14.516 13.294 11.712 10.616 9.229 dM3.0 75 1
39 L 818-40 ** 08 10 34.2940211397 -13 48 51.131341156   13.29 11.815 11.422   M2.5V 58 0
40 * 18 Pup PM* 08 10 39.8256078504 -13 47 57.141934620   6.03 5.54     F6.5V 152 0
41 Ross 619 PM* 08 11 57.5691729379 +08 46 22.952885566   14.60 12.834 12.527   M4.5V 201 0
42 L 674-15 PM* 08 12 40.8889728169 -21 33 06.982558553   13.81 12.13 11.75 9.24 M3.5V 105 0
43 G 113-20 PM* 08 16 07.9813123847 +01 18 09.265205331 12.824 11.63 10.091 9.071 7.851 M2.0V 132 0
44 L 675-81 Pe* 08 40 59.2057867166 -23 27 22.592748045   13.2 11.975 11.637 9.37 M3.5V 146 1
45 L 35-12 PM* 09 17 05.3238123228 -77 49 23.383480825   14.74 13.10 11.8 10.1 M4.5V 53 0
46 HD 304636 PM* 09 21 37.6015398425 -60 16 55.030018583 12.145 10.955 9.465 8.517 7.511 M0.0 78 0
47 G 48-20 PM* 09 30 44.5853914894 +00 19 21.593852255 14.533 13.298 11.710 10.583 9.127 M3.5V 94 0
48 L 678-39 EB* 09 36 01.6372169407 -21 39 38.877606712 13.647 12.48 10.906 9.858 8.577 M2.5V 159 0
49 CD-40 5404 ** 09 39 46.3687964591 -41 04 03.204421513 13.395 12.215 10.694 9.617 8.231 M3V 115 0
50 CD-45 5378 PM* 09 44 29.8367689785 -45 46 35.427639685 12.278 11.372 9.979 9.019 7.829 M1.0 96 0
51 L 750-52 PM* 09 44 47.3482075476 -18 12 48.969096059   14.19 12.455 12.103 9.67 M3.5Ve 64 0
52 V* AN Sex RS* 10 12 17.6682499584 -03 44 44.392042932 11.941 10.757 9.264 8.258 7.066 M2V 237 0
53 BD+01 2447 PM* 10 28 55.5512830314 +00 50 27.598904576 12.389 11.151 9.650 8.617 7.389 dM2 309 0
54 Wolf 358 BY* 10 50 52.0312380389 +06 48 29.259617410 14.532 13.319 11.675 10.459 8.889 M4V 263 0
55 CD-30 8858 PM* 10 58 35.0883696526 -31 08 38.200769022     11.926 11.588 9.63 M2 53 1
56 CD-23 9765 PM* 11 09 31.3449084222 -24 35 55.119086752 13.173 11.974 10.446 9.425 8.194 M2V 75 0
57 CD-31 9113 PM* 11 35 26.9477670462 -32 32 23.884215079 12.508 11.322 9.813 8.821 7.664 M2V 157 1
58 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 645 1
59 CD-51 5974 PM* 11 43 19.8200648771 -51 50 25.930594759   11.89 10.360 10.005   M1 53 0
60 Ross 128 Er* 11 47 44.3972681420 +00 48 16.400337591 14.223 12.905 11.153 9.859 8.184 dM4 420 0
61 BD+20 2678 PM* 12 05 07.0450367376 +19 33 15.585487884       9.4   G5V 27 1
62 BD+20 2678B PM* 12 05 11.9141453832 +19 31 40.753530192   16.5   14.1   ~ 12 1
63 Ross 695 PM* 12 24 52.5030065444 -18 14 32.257135052 13.954 12.863 11.272 10.243 8.991 dM2.0 127 0
64 CD-51 6859 PM* 12 37 52.2160953269 -52 00 05.322430607 13.397 12.198 10.663 9.586 8.233 M3V(e) 112 0
65 L 471-42 PM* 12 38 49.0984129478 -38 22 53.670422368   14.43 12.74 12.473   M4.0V 61 0
66 L 399-68 PM* 12 40 46.2893984278 -43 33 58.991739064 15.365 13.969 12.239 11.075 9.619 M3V 67 0
67 Wolf 437 EB* 12 47 56.6245693190 +09 45 05.035666747 14.088 12.958 11.395 10.235 8.707 M3.5V 153 0
68 CD-44 8360 * 12 58 48.2862280944 -44 58 17.650770168   11.749 10.699     ~ 5 0
69 HD 116963 PM* 13 27 24.9281885280 -21 39 19.141744644   11.02 9.88 9.959   K4Vk 38 1
70 LP 797-105 PM* 13 27 34.4830181016 -21 39 57.450519504   15.0 13.550 13.431   M2.5 13 1
71 BD+11 2576 PM* 13 29 59.7858994351 +10 22 37.784532575 11.728 10.524 9.029 8.07 7.013 M1.0V 257 0
72 HD 117579 PM* 13 31 28.6888108008 -08 00 26.417198124   9.57 8.85     G6V 44 1
73 Ross 477 PM* 13 31 29.7769883448 -07 59 59.506492596   13.1 12.420 12.033   M0.0Ve 20 1
74 HD 119850 Er* 13 45 43.7755597223 +14 53 29.471707437 10.989 9.894 8.50 7.465 6.363 M2V 352 0
75 HD 122303 PM* 14 01 03.1882316643 -02 39 17.519814662 12.343 11.177 9.707 8.745 7.66 M0V 163 0
76 HD 127339 PM* 14 30 47.7168523480 -08 38 46.789970930 12.105 10.809 9.392 8.517 7.672 K7V 124 0
77 Wolf 1478 PM* 14 31 01.1606549492 -12 17 45.951703675 14.61 13.49 11.903 10.751 9.257 dM3.5 88 0
78 BD-11 3759 BY* 14 34 16.8116623459 -12 31 10.414495538 14.041 12.915 11.317 10.093 8.473 M3.5V 188 0
79 BD+16 2708 Er* 14 54 29.2361840107 +16 06 03.797990080 12.86 11.686 10.150 9.116 7.872 M3V 277 1
80 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 641 2
81 CD-40 9712 PM* 15 32 12.9323109019 -41 16 32.130433884 11.918 10.815 9.311 8.265 6.947 M2.5V 141 0
82 HD 147379 PM* 16 16 42.7463475871 +67 14 19.831647336   10.01   8.730   M1-Ve 230 0
83 HD 147379B BY* 16 16 45.3144811630 +67 15 22.481125328   12.20   10.310   M3.0V 144 0
84 CD-37 10765 PM* 16 20 03.5074325823 -37 31 44.407005397 13.314 12.145 10.586 9.495 8.116 M3V 82 0
85 BD-12 4523 BY* 16 30 18.0583947383 -12 39 45.321217732 12.829 11.638 10.072 8.917 7.421 M3V 315 0
86 Wolf 629 PM* 16 55 25.2222453644 -08 19 21.296969167 14.691 13.436 11.759 10.574 9.044 M3.5V 219 0
87 G 139-21 PM* 17 15 18.9339850845 +04 57 50.066612336       14.394   M4.5V 325 1
88 HD 156384C PM* 17 18 58.8272997802 -34 59 48.612673382 12.96 11.79 10.22 10.05 8.82 M1.5V 221 1
89 CD-46 11540 LM* 17 28 39.9455781571 -46 53 42.688095874 12.177 10.973 9.407 8.337 7.006 M3V 254 1
90 CD-51 10924 PM* 17 30 11.2044753442 -51 38 13.130309109 12.317 11.028 9.585 8.675 8.60 M0V 112 1
91 BD+05 3409 PM* 17 30 22.7283012480 +05 32 54.665357820 11.981 10.79 9.433 8.348 7.382 M1.0V 153 0
92 CD-48 11837 PM* 17 35 13.6172141343 -48 40 51.121402968 12.875 11.673 10.127 9.101 7.871 M1.5V 70 0
93 CD-44 11909 PM* 17 37 03.6654566674 -44 19 09.166492972 13.791 12.593 10.946 9.729 8.145 M3.5 128 0
94 BD+18 3421 PM* 17 37 53.3468417549 +18 35 30.164096453 12.315 11.109 9.577 8.599 7.525 M1.5V 211 0
95 L 205-128 PM* 17 46 34.2330744905 -57 19 08.558449196 13.613 12.42 10.783 9.648 8.243 M3.5V 93 0
96 NAME Barnard's star BY* 17 57 48.4984700685 +04 41 36.113879676 12.497 11.24 9.511 8.298 6.741 M4V 812 2
97 HD 165222 PM* 18 05 07.5787518746 -03 01 52.749184670 12.09 10.878 9.360 8.385 7.304 M0V 230 0
98 Ross 730 PM* 19 07 05.5646181264 +20 53 16.940417573 13.54 12.397 10.774 9.745 8.543 M2.0V 160 0
99 HD 349726 PM* 19 07 13.2039504383 +20 52 37.258158623 13.553 12.383 10.771 9.739 8.531 M2V 164 0
100 HD 180617 PM* 19 16 55.2565688720 +05 10 08.040554168 11.768 10.63 9.115 8.076 6.782 M3-V 420 0
101 VB 10 Er* 19 16 57.6109547886 +05 09 01.600923413     17.30     M8V 476 1
102 L 347-14 PM* 19 20 47.9843202599 -45 33 29.643538526   13.93 12.23     M4.5 73 0
103 G 22-26 PM* 19 22 02.0704368182 +07 02 30.314643169       12.07   M4V 54 0
104 G 144-25 PM* 20 40 33.8632524043 +15 29 58.730061366   15.13 13.41 12.1 10.36 M4.5V 86 0
105 L 23-30 PM* 20 46 37.0668264729 -81 43 13.644776299       11.193   M3e 37 0
106 LP 816-60 PM* 20 52 33.0166041464 -16 58 29.003281943 14.094 13.029 11.458 10.251 8.658 M4V 106 0
107 HD 204961 PM* 21 33 33.9751191976 -49 00 32.399427028 11.359 10.176 8.672 7.665 6.479 M2/3V 290 1
108 HD 209290 PM* 22 02 10.2750978279 +01 24 00.832158070 11.838 10.616 9.146 8.213 7.245 M0.5V 247 0
109 L 499-56 PM* 22 02 29.3842983900 -37 04 51.304725337   12.8   11.420   M3.0V 58 0
110 BD-05 5715 PM* 22 09 40.3443137051 -04 38 26.650757960 13.006 11.868 10.366 9.279 7.877 M3.5V 286 1
111 L 788-37 PM* 22 13 42.8631007040 -17 41 08.670606651   15.32 13.672 13.443   dM4.5 78 0
112 HD 216133 PM* 22 50 19.4243064528 -07 05 24.378878724 12.519 11.316 9.847 8.933 8.02 M0.5V 100 0
113 V* GT Peg BY* 22 51 53.5351209551 +31 45 15.192825225       11.281   M3.5Ve 158 0
114 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1013 1
115 L 49-19 PM* 22 55 45.5127596213 -75 27 31.203633959 13.004 11.873 10.377 9.312 7.958 M3V 74 0
116 HD 216899 PM* 22 56 34.8046530863 +16 33 12.355636588 11.323 10.143 8.638 7.657 6.542 M1.5V 292 0
117 HD 217987 PM* 23 05 52.0357857091 -35 51 11.055185039   8.83 7.39     M2V 273 0
118 G 68-8 PM* 23 21 37.4486739614 +17 17 25.391139752 14.299 13.236 11.710 10.514 8.942 M3.5V 100 0
119 V* BR Psc BY* 23 49 12.5250852078 +02 24 04.405476893 11.532 10.427 8.993 8.029 6.946 dM1 326 0
120 HD 223889 PM* 23 53 50.1123063066 -75 37 57.118104352 12.629 11.515 10.023 8.994 7.72 M3 48 0

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