2013A&A...556A..15R


Query : 2013A&A...556A..15R

2013A&A...556A..15R - Astronomy and Astrophysics, volume 556A, 15-15 (2013/8-1)

The effective temperature scale of M dwarfs.

RAJPUROHIT A.S., REYLE C., ALLARD F., HOMEIER D., SCHULTHEIS M., BESSELL M.S. and ROBIN A.C.

Abstract (from CDS):

Despite their large number in the Galaxy, M dwarfs remain elusive objects and the modeling of their photosphere has long remained a challenge (molecular opacities, dust cloud formation). Our objectives are to validate the BT-Settl model atmospheres, update the M dwarf Teff-spectral type relation, and find the atmospheric parameters of the stars in our sample. We compare two samples of optical spectra covering the whole M dwarf sequence with the most recent BT-Settl synthetic spectra and use a χ2 minimization technique to determine Teff. The first sample consists of 97 low-resolution spectra obtained with New Technology Telescope (NTT) at La Silla Observatory. The second sample contains 55 medium-resolution spectra obtained at the Siding Spring Observatory (SSO). The spectral typing is realized by comparison with already classified M dwarfs. We show that the BT-Settl synthetic spectra reproduce the slope of the spectral energy distribution and most of its features. Only the CaOH band at 5570Å and AlH and NaH hydrides in the blue part of the spectra are still missing in the models. The Teff scale obtained with the higher resolved SSO 2.3m spectra is consistent with that obtained with the NTT spectra. We compare our Teff scale with those of other authors and with published isochrones using the BT-Settl colors. We also present relations between effective temperature, spectral type, and colors of the M dwarfs.

Abstract Copyright:

Journal keyword(s): stars: atmospheres - stars: low-mass - stars: fundamental parameters

VizieR on-line data: <Available at CDS (J/A+A/556/A15): table1.dat table2.dat>

Simbad objects: 160

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Number of rows : 160
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 LEHPM 640 Er* 00 28 54.7623185016 -27 33 33.728127768     17.74 14.26 12.30 M4.5 6 0
2 L 170-14 A Er* 00 29 49.9797554062 -54 41 35.451440523   15.61 14.44 12.86 11.50 M4.5e 13 0
3 L 291-115 PM* 00 33 13.5085431329 -47 33 16.517449508   17.347 15.763     M5 13 0
4 LEHPM 1175 Er* 01 01 57.8548418400 -55 23 45.740927904   15.694 14.227 13.873 11.51 M3.5 13 0
5 LP 938-71 LM* 01 02 51.0512652806 -37 37 43.765024016     18.575 16.223 13.83 M8.0V 32 0
6 LP 938-112 PM* 01 08 46.4261444832 -37 10 21.444839893           M4.5 10 0
7 CD-68 47 ** 01 10 22.8808981176 -67 26 41.948658967 12.515 11.368 9.824 8.73 7.353 M2.5V 84 0
8 V* YZ Cet Er* 01 12 30.6368826382 -16 59 56.358011559 15.315 13.885 12.074 10.696 8.938 M4.0Ve 244 0
9 CD-42 469 PM* 01 21 34.5939907670 -41 39 23.050001874 12.63 11.527 10.130 9.253 8.376 M0Vk: 57 0
10 G 274-90 PM* 01 45 11.7427476977 -32 05 07.157614589   15.12 13.63 13.370   M3 18 0
11 LEHPM 1839 Er* 01 45 30.6362909832 -52 30 19.606451760           M3.5 3 0
12 WT 50 Er* 01 46 29.3491797504 -53 39 32.583415932   14.5 14.146     M4.5 10 0
13 LP 940-20 PM* 01 49 42.7247619189 -33 19 19.959265023   16.60       M4.5Ve 11 0
14 L 294-112 PM* 01 52 51.5854440281 -48 05 41.221362632   13.4   13.526   M4.5 21 0
15 LP 469-67 LM* 02 02 16.2429995239 +10 20 13.937753422       15.711   M5.5V 51 0
16 BD+02 348 PM* 02 12 20.9873991153 +03 34 32.232373243 12.552 11.477 10.042 9.092 7.988 M1V 175 0
17 LP 885-35 LM* 02 15 08.0424621263 -30 40 01.401489627           M8 19 0
18 LP 829-41 PM* 02 16 21.4265254416 -22 00 48.690468432     16.41     M5.5Ve 11 0
19 LP 941-57 PM* 02 22 18.2936638905 -36 51 51.587555177           M5.5 8 0
20 L 225-57 PM* 02 34 21.1900193188 -53 05 36.753213510   14.137 12.565 11.7   M4 27 0
21 L 127-33 PM* 02 40 37.2112603712 -60 44 45.998468581   15.35       M2 8 0
22 L 226-56 PM* 02 55 14.4854093471 -51 40 20.973245065   15.852 14.384 13.978   M4 15 0
23 LP 942-107 LM* 03 05 11.2100787562 -34 05 24.014259069   15.476 13.923 13.775 11.12 MV 16 0
24 LEHPM 3115 PM* 03 09 00.22008 -49 24 51.5520   16.84 15.26 14.85   M4.5 7 0
25 LP 994-114 ** 03 09 22.19376 -39 11 03.1344       12.516 10.37 M3 11 0
26 LP 772-8 PM* 03 09 51.1890021597 -19 06 47.713672046     14.11 13.43   M4.0 11 0
27 V* CD Cet BY* 03 13 22.9175070353 +04 46 29.336548127   15.61 14.001 13.650   M4.5V 125 0
28 LP 831-45 PM* 03 14 18.1626185196 -23 09 29.751928937   14.093 12.525 12.297 9.91 M3.5 19 0
29 2MUCD 10172 PM* 03 14 40.1042616696 -04 50 31.928420796       17.600 15.148 M7.5 7 0
30 LP 831-68 PM* 03 16 47.8135812024 -21 25 26.072099544   12.50 11.04 10.72   M1.5 11 0
31 LP 772-31 PM* 03 17 18.0458689877 -19 40 17.805086564   16.2       M4.5 12 0
32 L 127-124 PM* 03 20 51.7840056072 -63 51 52.416447732   15.013 13.433 13.178   M4 14 0
33 G 77-46 PM* 03 21 46.9232372547 -06 40 24.214996740   12.49 11.314 10.981 9.47 M2V 54 0
34 LP 832-7 PM* 03 23 06.6728805768 -24 13 27.974229204   15.860 14.290 13.944   M3.5 10 0
35 BD-12 662 PM* 03 29 19.7918590731 -11 40 42.125381784 12.692 11.415 9.991 9.116 8.287 dK7 57 0
36 L 228-92 PM* 03 38 55.9143782760 -52 34 10.612271064     14.429 14.059   M4.5 17 0
37 G 160-28 Er* 03 50 44.2893983103 -06 05 41.628583585   14.48 12.843 12.498   M3V 63 0
38 LP 593-68 LM* 03 51 00.0274722419 -00 52 44.922468108   19.8 18.02     M8.0V 59 0
39 L 129-35 PM* 04 04 31.9726826497 -62 59 14.010290917   16.5       M4 11 0
40 PM J04061-0534 PM* 04 06 06.8751409824 -05 34 44.616299160     13.313 13.009   M3.5V 13 0
41 LP 889-37 ** 04 08 55.584576 -31 28 53.82228   16.22 14.52 14.26 11.48 M4.5 14 0
42 SIPS J0410-1459 PM* 04 10 36.1893946920 -14 59 26.895795684         16.68 M8.5 3 0
43 LP 714-37 ** 04 10 48.10248 -12 51 42.1488   18.4   15.0 12.99 M5.5+M8.0+M8.5 24 0
44 LP 834-3 PM* 04 13 24.2038196928 -21 13 19.266361176   19.4   17.2 15.55 M2.5 3 0
45 L 178-47 PM* 04 18 51.0270391476 -57 14 01.149405171   14.85 13.30 12.955   M2.5 23 0
46 LP 890-27 PM* 04 26 32.6433044288 -30 48 01.854889357   15.732 14.054 13.864 10.97 M4.5 22 0
47 L 130-37 Er* 04 28 05.7029922930 -62 09 25.134940094   14.58 13.052 12.762   M3.5 17 0
48 LP 834-32 LM* 04 35 36.1920843744 -25 27 34.587319140   13.95 12.41 12.08 9.720 M3.5 31 0
49 2MASS J04362788-4114465 PM* 04 36 27.8873100288 -41 14 46.452236496           M8p? 15 0
50 LP 655-43 PM* 04 38 02.5178866152 -05 56 13.392943044   16.147 14.501 13.14 11.41 M4.5 21 0
51 LP 715-39 PM* 04 38 37.1565781746 -11 30 14.780575647   14.195 12.682 12.346 10.09 M3.0V 21 0
52 LP 655-48 PM* 04 40 23.2746368923 -05 30 08.125383990   18.9 17.79 15.72 13.36 M7.5Ve 58 0
53 2MASS J05022640-0453583 PM* 05 02 26.3919337795 -04 53 58.722007359       20.39 17.35 M8 2 0
54 LEHPM 3866 PM* 05 03 25.8461540597 -53 53 18.703844797   16.533 14.849 14.453   M4 5 0
55 SIPS J0508-1647 LM* 05 08 49.4600223257 -16 47 17.195571611           M8 6 0
56 2MASS J05181131-3101529 LM* 05 18 11.3250403344 -31 01 52.898696364     17.74   14.17 M6.5 11 0
57 APMPM J0541-5349 ** 05 41 27.2013850776 -53 49 14.706606432   15.188 13.705 13.778   M2 5 0
58 L 595-22 PM* 05 56 24.7419040752 -27 51 32.361761700   12.31 12.38     sdG 160 0
59 HD 42581 Er* 06 10 34.6149358167 -21 51 52.656352926 10.801 9.607 8.125 7.164 6.121 M1V 447 0
60 HD 44007 Pe* 06 18 48.5269024752 -14 50 43.423248948   8.85 8.06 7.69   G5(IV)wF3/5 178 0
61 HD 45282 Pe* 06 26 40.7720940072 +03 25 29.792391024 8.71 8.69 8.03     Gwl 147 0
62 HD 55496 Pe* 07 12 11.3776089792 -22 59 00.613074804   9.30 8.40     CEMP-s 68 1
63 LAWD 25 WD* 07 40 20.7886676070 -17 24 49.156867583   13.36 13.061 12.886 12.70 DZQA6 196 0
64 LP 664-13 PM* 08 05 36.9465660943 -09 32 38.367020238   16.986 15.127 13.805 12.032 M5 12 0
65 LP 843-16 PM* 08 14 22.5683898000 -25 42 19.082422836   13.35 11.516 11.145 9.34 M2 15 0
66 G 114-10 PM* 08 38 54.4719025032 -09 33 58.644989748   13.66 11.805 11.436 9.59 M2 16 0
67 G 46-2 PM* 08 42 52.2285198362 +09 33 11.172454325 14.527 13.18 11.800 10.74 9.418 M2.5V 72 0
68 LP 368-128 PM* 09 00 23.5461184051 +21 50 04.901331010   17.3 16.100 14.09 11.85 M6.5Ve 56 0
69 G 161-7 ** 09 15 36.402000 -10 35 47.22900   15.643 13.804 13.473 10.42 M5.0V 41 0
70 L 35-12 PM* 09 17 05.3238123228 -77 49 23.383480825   14.74 13.10 11.8 10.1 M4.5V 49 0
71 LP 788-1 PM* 09 31 22.3161639762 -17 17 42.655397800   19.2     13.140 M6.5 12 0
72 L 678-39 PM* 09 36 01.6372169407 -21 39 38.877606712 13.647 12.48 10.906 9.858 8.577 M2.5V 136 0
73 L 100-115 PM* 09 42 46.3429551119 -68 53 06.008938214   14.51 12.78 11.35 9.61 M4.0V 51 0
74 G 161-71 LM* 09 44 54.1925104432 -12 20 54.376191714   15.47 13.646 13.467 10.353 M5.0V 60 0
75 LP 788-49 PM* 09 51 23.3305685254 -17 44 24.502403540   13.29 11.840 10.83 9.55 M2 13 0
76 2MASSI J0953212-101420 BD* 09 53 21.2728403904 -10 14 20.651592552         16.819 L0.0V 16 0
77 LP 789-23 PM* 10 06 31.9473645332 -16 53 26.307268882   20.3   16.875 14.573 M7.5Ve 23 0
78 V* AN Sex RS* 10 12 17.6682499584 -03 44 44.392042932 11.941 10.757 9.264 8.258 7.066 M2V 220 0
79 MCC 573 PM* 10 16 45.9486335041 -11 57 42.405573294 13.559 12.464 10.998 9.953 8.624 dM3.0 87 0
80 BD+01 2447 PM* 10 28 55.5512830314 +00 50 27.598904576 12.389 11.151 9.650 8.617 7.389 dM2 292 0
81 G 162-70 PM* 10 35 01.1174982552 -09 24 38.578905216   13.66 12.110 11.02 9.63 dM3.0 29 0
82 LP 490-42 ** 10 37 55.296504 +12 46 36.86232   14.05 12.51 12.06 10.049 M3.0V 18 0
83 LP 904-51 PM* 10 41 44.0064958718 -31 11 54.374891540   16.80       M5 6 0
84 L 143-23 PM* 10 44 21.2329114167 -61 12 35.275360415   15.74 13.920 12.33 10.31 M5.5V 61 0
85 LP 731-58 Er* 10 48 12.6142508200 -11 20 09.610693470     15.784 16.01 11.25 M6.5V 160 0
86 DENIS J104814.6-395606 LM* 10 48 14.5736104113 -39 56 06.842743867     17.532 15.051 12.67 M8.5Ve: 124 0
87 LP 731-65 PM* 10 50 32.7662760072 -13 26 12.802081020     15.60 14.37 12.73 M4.5 7 0
88 Wolf 359 Er* 10 56 28.9208702274 +07 00 53.003285286 16.706 15.541 13.507 11.684 9.507 dM6 688 0
89 LP 551-63 PM* 11 06 18.9746601198 +04 28 32.670142533   20.2 19.560 17.25 14.91 M6.5V 33 0
90 LP 849-55 PM* 11 06 45.7651335186 -22 02 18.765656418     13.32     M2.5 5 0
91 L 970-27 PM* 11 08 06.5391855920 -05 13 47.135439598 15.253 14.058 12.559 11.479 10.125 M3V 53 0
92 LP 732-20 PM* 11 20 26.2965076927 -14 40 02.323602484           M5Ve 41 0
93 LP 732-94 LM* 11 21 49.1708652037 -13 13 08.693807585     19.57     M8.5V 126 0
94 LP 732-35 PM* 11 31 08.3872209967 -14 57 21.252043993 16.97 15.97 14.24 14.33 10.94 M5 43 0
95 CD-31 9113 PM* 11 35 26.9477670462 -32 32 23.884215079 12.508 11.322 9.813 8.821 7.664 M2V 147 1
96 LP 613-62 PM* 11 51 55.3004887224 -01 31 32.223083592   16.22 15.640 14.228 12.322 M5 14 0
97 LP 851-346 PM* 11 55 42.8518932351 -22 24 58.797393048   19.6     13.203 M7.5V 26 0
98 LP 851-399 LM* 11 57 53.4842410200 -23 49 00.757821936   16.498 14.77 13.51 11.84 M4.5 13 0
99 LP 434-33 PM* 12 03 09.2249460137 +17 01 22.494831492   20.0 19.130 17.41 15.33 M6+V 16 0
100 LP 908-25 PM* 12 09 54.0832612584 -29 20 15.537789276   15.5 14.719 13.488 11.847 M4 10 0
101 LP 734-32 PM* 12 10 05.6012378997 -15 04 16.961252810   13.64 12.083 11.912 9.35 dM3.5 63 0
102 L 758-108 PM* 12 11 11.7596362272 -19 57 38.070669636 14.475 13.276 11.709 10.619 9.253 dM3.0 67 1
103 Ross 695 PM* 12 24 52.5030065444 -18 14 32.257135052 13.954 12.863 11.272 10.243 8.991 dM2.0 119 0
104 LP 795-15 PM* 12 25 32.0279107606 -15 59 41.816626660   16.4 15.264 13.758 11.846 M5.5 17 0
105 Wolf 427 PM* 12 35 00.7053547280 +09 49 42.564002768 13.884 12.85 11.405 10.413 9.171 M1V 79 1
106 2MASS J12363959-1722170 PM* 12 36 39.5821806912 -17 22 17.265775908           M6 6 0
107 LP 735-29 PM* 12 44 00.7394831731 -11 10 30.387065606     14.180 13.947 11.18 M4.5V 26 0
108 LP 853-34 PM* 12 47 10.0317582888 -22 22 37.080394248   13.81 12.286 12.027 9.99 M2 13 0
109 Wolf 437 PM* 12 47 56.6245693190 +09 45 05.035666747 14.088 12.958 11.395 10.235 8.707 M3.5V 135 0
110 APMPM J1251-2121 PM* 12 50 52.6489846010 -21 21 13.589571791   21.3 19.0 16.67   M7.5e 22 0
111 G 150-17 PM* 13 35 50.7572040912 +14 41 11.776932744   13.911 12.399 12.033 9.989 M2.5V 15 0
112 LP 738-14 PM* 13 48 07.2760635189 -13 44 31.599383701   16.79 15.07 14.90 12.054 M4.5 20 0
113 LP 739-2 PM* 13 58 16.1711418780 -12 02 59.040043661     14.486 13.11 11.4 M4.5V 20 0
114 PM J14223-7023 PM* 14 22 19.4744512701 -70 23 37.010844372     15.17     M5 7 0
115 NAME Proxima Centauri Er* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1191 0
116 LP 859-11 PM* 15 08 23.3947153354 -23 51 37.192949225   13.41 11.875 11.610 9.69 M2 18 0
117 Ross 1047 PM* 15 09 35.5922555405 +03 10 00.552794932 14.131 12.986 11.473 10.405 9.052 M2V 73 0
118 SCR J1546-5534 PM* 15 46 41.6913113035 -55 34 47.486459295   18.2   16.4 12.96 M7.5 13 0
119 LP 861-22 PM* 16 06 29.4660943851 -24 07 24.674316973     14.999 13.692 11.993 M4.5 6 0
120 LP 917-25 PM* 16 20 37.6174044960 -30 39 40.541818428   13.39 11.96 10.98 9.81 M2 9 0
121 L 338-152 PM* 16 22 40.9578065729 -48 39 20.017750863 14.297 13.247 11.783 10.804 9.653 M3 47 0
122 L 74-113 PM* 16 48 24.4694659813 -72 58 33.910977327 14.077 12.887 11.326 10.341 9.242 M2 58 0
123 VB 8 Er* 16 55 35.2557374336 -08 23 40.753073075   18.7 16.916 14.566 12.24 M7Ve 416 0
124 G 139-27 PM* 17 16 40.9809159936 +08 03 30.206482884 14.301 13.087 11.529 10.48 9.219 M2.5V 72 0
125 G 155-29 ** 18 38 44.7460014888 -14 29 26.021164428 13.969 12.782 11.224 10.183 8.925 M2.5 48 0
126 LP 867-15 PM* 18 42 11.0949439980 -23 28 58.630526184   13.76 12.100 11.751 9.61 M3.5 13 0
127 CD-48 12818 PM* 18 59 07.4580425083 -48 16 28.063257431 13.73 12.615 11.142 10.104 8.8 M4V 52 0
128 VB 10 Er* 19 16 57.6109547886 +05 09 01.600923413     17.30     M8V 467 1
129 LAWD 74 WD* 19 20 34.9229289504 -07 40 00.065957592 11.553 12.345 12.290 12.229 12.164 DBQA5 217 0
130 L 348-141 PM* 19 31 53.2431154671 -48 33 53.750388196       14.15   M4.5 6 0
131 HD 184266 HB* 19 34 15.3865887336 -16 19 00.228534420 8.27 8.12 7.57     F2V 115 0
132 HD 187111 Pe* 19 48 39.5744746680 -12 07 19.738101036   8.92 7.75     G8wF8III/IV 137 0
133 SIPS J2045-6332 BD* 20 45 02.3962899912 -63 32 06.564757848       19.03 16.053 L1 19 0
134 Wolf 896 PM* 20 56 46.5969248424 -10 26 54.747253252 14.112 12.999 11.487 10.428 9.106 dM2.5 97 0
135 APMPM J2101-4125 Er* 21 01 03.8195823830 -41 14 33.281696734   16.19 14.49 14.30   M4 13 0
136 WT 766 PM* 21 01 07.4108149283 -49 07 25.005097491   14.99 13.33 13.03   M4.5 17 0
137 Wolf 918 PM* 21 09 17.4271514815 -13 18 09.013127841 13.501 12.362 10.869 9.891 8.805 M1V 136 0
138 2MASS J21481595-1401059 PM* 21 48 15.9410078208 -14 01 06.031273332       20.20 17.15 M6.5 1 0
139 2MASSW J2206228-204705 SB* 22 06 22.8297746064 -20 47 06.597790152     19.788 17.452 14.877 M8.0V 45 0
140 L 83-10 PM* 22 10 10.6096349304 -70 10 10.517271852   14.453 13.047     M2 11 0
141 L 83-11 PM* 22 10 20.0855365104 -70 10 08.096148084     14.4     M3 8 0
142 LP 1032-120 PM* 22 23 09.6858405502 -43 27 38.732773703   15.39       M3 13 0
143 DENIS J222644.3-750342 LM* 22 26 44.4157216320 -75 03 42.533035596         15.21 M8 15 0
144 LEHPM 4771 PM* 22 30 09.4171794113 -53 44 55.590421871       14.261   M4.5 19 0
145 L 166-44 Er* 22 34 04.352616 -61 07 40.67904   16.456 14.815 14.383   M4.5 7 0
146 LP 1033-31 ** 22 35 04.893816 -42 17 48.02712   14.879 13.316 13.015   M4.5+M4.5 14 0
147 HD 214100 PM* 22 36 09.6882282196 -00 50 29.761996396   11.431 9.930 9.877   M1V 81 0
148 L 357-25 PM* 22 40 57.9762297699 -45 43 24.733925168   14.1 13.828 13.491   M3 15 0
149 L 166-3 PM* 22 42 00.0513829114 -59 15 12.361701552   15.560 14.017     M4 13 0
150 G 275-12 ** 23 10 00.238680 -21 11 43.19232   14.318 12.766 12.555   M1+M4 18 0
151 Feige 110 HS* 23 19 58.3996844256 -05 09 56.171142864 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 612 1
152 L 120-120 Er* 23 25 24.898320 -67 40 07.16232   15.982 14.38 14.066 11.48 M4 13 0
153 APMPM J2330-4737 PM* 23 30 16.1678683584 -47 36 45.082175689     18.081 15.867 13.682 M6e 11 0
154 G 157-77 PM* 23 35 10.4624266947 -02 23 20.613547105   16.60 14.69 14.447   M5.0Ve 82 0
155 LP 878-73 PM* 23 40 47.6425711023 -22 25 30.865218661   16.4       M4 12 0
156 LEHPM 6364 PM* 23 52 27.5749756366 -36 09 12.946546721           M4.5 5 0
157 LP 1035-82 PM* 23 53 08.2703497464 -42 32 03.568460388     12.845 12.526   M3 12 0
158 LP 987-47 PM* 23 53 40.9575595564 -35 59 05.874513329     13.474 13.273   M4 14 0
159 G 273-163 PM* 23 54 50.2088140968 -09 57 01.201060764   13.639 12.193 11.900 9.844 M2.5 14 0
160 LEHPM 6577 PM* 23 58 49.1684070024 -54 00 14.735872620           M3.5 4 0

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2023.02.01-19:25:29

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