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


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.15CEST07:55:18

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 - 2021
#notes
1 2MASS J00285473-2733337 PM* 00 28 54.7624105322 -27 33 33.727830273     17.74 14.26 12.30 M4.5 4 0
2 L 170-14 A PM* 00 29 49.9803012104 -54 41 35.453211892   15.61 14.44 12.86 11.50 M4.5e 7 0
3 L 291-115 PM* 00 33 13.5090205762 -47 33 16.516691782   17.347 15.763     M5 12 0
4 LEHPM 1175 PM* 01 01 57.8549860060 -55 23 45.738479104       13.08 11.51 M3.5 5 0
5 LP 938-71 LM* 01 02 51.0509339431 -37 37 43.771646556     18.575 16.223 13.83 M8.0V 30 0
6 LP 938-112 PM* 01 08 46.4259968111 -37 10 21.444136721           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 81 0
8 V* YZ Cet Er* 01 12 30.6367741360 -16 59 56.361313690 15.315 13.885 12.074 10.696 8.938 M4.0Ve 212 0
9 CD-42 469 PM* 01 21 34.5941167944 -41 39 23.050021449 12.63 11.527 10.130 9.253 8.376 M0Vk: 52 0
10 G 274-90 PM* 01 45 11.7428300288 -32 05 07.156413537   15.12 13.63 13.370   M3 18 0
11 2MASS J01453063-5230195 PM* 01 45 30.6362825982 -52 30 19.604737456           M3.5 2 0
12 2MASS J01462935-5339325 PM* 01 46 29.3489080933 -53 39 32.583893487   14.5 14.146     M4.5 7 0
13 LP 940-20 PM* 01 49 42.7252956948 -33 19 19.956336012   16.60       M4.5Ve 10 0
14 L 294-112 PM* 01 52 51.5851535153 -48 05 41.223139749   13.4   13.526   M4.5 15 0
15 LP 469-67 LM* 02 02 16.2424149421 +10 20 13.953769861       15.711   M5.5V 49 0
16 BD+02 348 PM* 02 12 20.9874569826 +03 34 32.230562527 12.552 11.477 10.042 9.092 7.988 M1V 161 0
17 LP 885-35 LM* 02 15 08.0425291027 -30 40 01.396652826           M8 18 0
18 LP 829-41 PM* 02 16 21.4265768725 -22 00 48.688045071     16.41     M5.5Ve 10 0
19 LP 941-57 PM* 02 22 18.2937443155 -36 51 51.588221141           M5.5 6 0
20 L 225-57 PM* 02 34 21.1900193188 -53 05 36.753213510   14.137 12.565 11.7   M4 21 0
21 L 127-33 PM* 02 40 37.2112689204 -60 44 45.998624909   15.35       M2 7 0
22 L 226-56 PM* 02 55 14.4854396580 -51 40 20.969884917   15.852 14.384 13.978   M4 13 0
23 LP 942-107 LM* 03 05 11.2101081621 -34 05 24.015083487   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 6 0
25 LP 994-114 PM* 03 09 22.19376 -39 11 03.1344       12.516 10.37 M3 11 0
26 LP 772-8 PM* 03 09 51.1890960485 -19 06 47.713861350     14.11 13.43   M4.0 11 0
27 V* CD Cet BY* 03 13 22.9175232961 +04 46 29.343777709   15.61 14.001 13.650   M4.5Ve 113 0
28 LP 831-45 PM* 03 14 18.1627764865 -23 09 29.750280719   14.093 12.525 12.297 9.91 M3.5 19 0
29 2MUCD 10172 PM* 03 14 40.1046953564 -04 50 31.955447415       17.600 15.148 M7.5 7 0
30 LP 831-68 PM* 03 16 47.8137867897 -21 25 26.073507496   12.50 11.04 10.72   M1.5 11 0
31 LP 772-31 PM* 03 17 18.0459399782 -19 40 17.799613851   16.2       M4.5 12 0
32 L 127-124 PM* 03 20 51.7837342624 -63 51 52.417551681   15.013 13.433 13.178   M4 9 0
33 G 77-46 PM* 03 21 46.9231319786 -06 40 24.217353522   12.49 11.314 10.981 9.47 M2V 41 0
34 LP 832-7 PM* 03 23 06.6731980894 -24 13 27.981223834   15.860 14.290 13.944   M3.5 10 0
35 BD-12 662 PM* 03 29 19.7918997009 -11 40 42.124872413 12.692 11.415 9.991 9.116 8.287 dK7 53 0
36 L 228-92 PM* 03 38 55.9148354685 -52 34 10.609075974     14.429 14.059   M4.5 11 0
37 G 160-28 PM* 03 50 44.2892011012 -06 05 41.629933395   14.48 12.843 12.498   M3V 55 0
38 LP 593-68 LM* 03 51 00.0273696150 -00 52 44.919271994   19.8 18.02     M8.0V 58 0
39 L 129-35 PM* 04 04 31.9727186143 -62 59 14.009683907   16.5       M4 10 0
40 UCAC4 423-005428 PM* 04 06 06.8749413744 -05 34 44.615403353     13.313 13.009   M3.5V 11 0
41 LP 889-37 ** 04 08 55.584576 -31 28 53.82228   16.22 14.52 14.26 11.48 M4.5 13 0
42 2MASS J04103617-1459269 PM* 04 10 36.1894269458 -14 59 26.886129911         16.68 M8.5 2 0
43 LP 714-37 ** 04 10 48.0436547194 -12 51 42.061289360   18.4   15.0 12.99 M5.5+M8.0+M8.5 22 0
44 LP 834-3 PM* 04 13 24.2039062660 -21 13 19.267319363   19.4   17.2 15.55 M2.5 3 0
45 L 178-47 PM* 04 18 51.0270801236 -57 14 01.150329256   14.85 13.30 12.955   M2.5 21 0
46 LP 890-27 PM* 04 26 32.6435843811 -30 48 01.855534755   15.732 14.054 13.864 10.97 M4.5 18 0
47 L 130-37 PM* 04 28 05.7032255109 -62 09 25.133855666   14.58 13.052 12.762   M3.5 14 0
48 LP 834-32 LM* 04 35 36.1921043166 -25 27 34.588766739   13.95 12.41 12.08 9.720 M3.5 26 0
49 2MASS J04362788-4114465 PM* 04 36 27.8873564697 -41 14 46.453996877           M8p? 14 0
50 LP 655-43 PM* 04 38 02.5192783967 -05 56 13.422383307   16.147 14.501 13.14 11.41 M4.5 21 0
51 LP 715-39 PM* 04 38 37.1563112159 -11 30 14.779386157   14.195 12.682 12.346 10.09 M3.0V 20 0
52 LP 655-48 PM* 04 40 23.2761331563 -05 30 08.129120042   18.9 17.79 15.72 13.36 M7.5Ve 53 0
53 2MASS J05022640-0453583 PM* 05 02 26.3926366473 -04 53 58.716338915       20.39 17.35 M8 2 0
54 2MASS J05032583-5353188 PM* 05 03 25.8459945072 -53 53 18.708529031           M4 4 0
55 2MASS J05084947-1647167 LM* 05 08 49.4604094301 -16 47 17.202266450           M8 5 0
56 2MASS J05181131-3101529 LM* 05 18 11.3248184686 -31 01 52.889592861     17.74   14.17 M6.5 11 0
57 APMPM J0541-5349 PM* 05 41 27.1965492451 -53 49 14.765781948   13.61       M2 5 0
58 L 595-22 PM* 05 56 24.7419816722 -27 51 32.362978169   12.31 12.38     sdG 147 0
59 HD 42581 Er* 06 10 34.6152510171 -21 51 52.658021185 10.801 9.607 8.125 7.164 6.121 M1V 414 0
60 HD 44007 Pe* 06 18 48.5271098810 -14 50 43.424752212   8.85 8.06 7.69   G5(IV)wF3/5 174 0
61 HD 45282 Pe* 06 26 40.7720108507 +03 25 29.794070200 8.71 8.69 8.03     Gwl 143 0
62 HD 55496 Pe* 07 12 11.3777515932 -22 59 00.610613637   9.30 8.40     G(II)wp(Ba) 67 1
63 LAWD 25 WD* 07 40 20.7887176053 -17 24 49.155097204   13.36 13.061 12.886 12.70 DZQA6 185 0
64 LP 664-13 PM* 08 05 36.9464894901 -09 32 38.366149112   16.986 15.127 13.805 12.032 M5 12 0
65 LP 843-16 PM* 08 14 22.5685886274 -25 42 19.069742902   13.35 11.516 11.145 9.34 M2 15 0
66 G 114-10 PM* 08 38 54.4693075471 -09 33 58.567441041   13.66 11.805 11.436 9.59 M2 13 0
67 G 46-2 PM* 08 42 52.2285828953 +09 33 11.175358045 14.527 13.18 11.800 10.74 9.418 M2.5Ve 67 0
68 LP 368-128 PM* 09 00 23.5469323169 +21 50 04.898204213   17.3 16.100 14.09 11.85 M6.5Ve 50 0
69 G 161-7 ** 09 15 36.402000 -10 35 47.22900   15.64 13.80 13.473 10.42 M5.0V 36 0
70 L 35-12 PM* 09 17 05.3224438562 -77 49 23.382092057   14.74 13.10 11.8 10.1 M4.5V 43 0
71 LP 788-1 PM* 09 31 22.3206009549 -17 17 42.324588717   19.2     13.140 M6.5 11 0
72 L 678-39 PM* 09 36 01.6372518187 -21 39 38.878281901 13.647 12.48 10.906 9.858 8.577 M2.5V 111 0
73 L 100-115 PM* 09 42 46.3420429010 -68 53 06.003864262   14.51 12.78 11.35 9.61 M4.0V 48 0
74 G 161-71 LM* 09 44 54.1925131725 -12 20 54.374177667   15.47 13.646 13.467 10.353 M5.0V 48 0
75 LP 788-49 PM* 09 51 23.3274135291 -17 44 24.482631653   13.29 11.840 10.83 9.55 M2 13 0
76 2MASSI J0953212-101420 BD* 09 53 21.2734236071 -10 14 20.670474881         16.819 L0.0V 15 0
77 LP 789-23 PM* 10 06 31.9469632455 -16 53 26.309690136   20.3   16.875 14.573 M7.5Ve 22 0
78 V* AN Sex RS* 10 12 17.6684359061 -03 44 44.393843397 11.941 10.757 9.264 8.258 7.066 M2V 199 0
79 MCC 573 PM* 10 16 45.9486115574 -11 57 42.403013223 13.559 12.464 10.998 9.953 8.624 dM3.0 77 0
80 BD+01 2447 PM* 10 28 55.5513010331 +00 50 27.601817738 12.389 11.151 9.650 8.617 7.389 dM2 267 0
81 G 162-70 PM* 10 35 01.1173228615 -09 24 38.577977895   13.66 12.110 11.02 9.63 dM3.0 22 0
82 LP 490-42 ** 10 37 55.296504 +12 46 36.86232   14.05 12.51 12.06 10.049 M3.0Ve 17 0
83 LP 904-51 PM* 10 41 44.0062714043 -31 11 54.377167999   16.80       M5 5 0
84 L 143-23 PM* 10 44 21.2334129761 -61 12 35.263329881   15.74 13.920 12.33 10.31 M5.5V 54 0
85 LP 731-58 Er* 10 48 12.6142482968 -11 20 09.609457904     15.784 16.01 11.25 M6.5V 146 0
86 DENIS J104814.6-395606 LM* 10 48 14.5734267094 -39 56 06.843210566     17.532 15.051 12.67 M8.5Ve: 116 0
87 LP 731-65 PM* 10 50 32.7662962452 -13 26 12.788188219     15.60 14.37 12.73 M4.5 7 0
88 Wolf 359 Er* 10 56 28.826208 +07 00 52.34400 16.706 15.541 13.507 11.684 9.507 dM6 643 0
89 LP 551-63 PM* 11 06 18.9743646497 +04 28 32.666780215   20.2 19.560 17.25 14.91 M6.5V 33 0
90 LP 849-55 PM* 11 06 45.7652068712 -22 02 18.764562678     13.32     M2.5 5 0
91 L 970-27 PM* 11 08 06.5390287686 -05 13 47.136560342 15.253 14.058 12.559 11.479 10.125 M3V 47 0
92 LP 732-20 PM* 11 20 26.2970231070 -14 40 02.326804415           M5Ve 40 0
93 LP 732-94 LM* 11 21 49.1720839605 -13 13 08.728765179     19.57     M8.5V 125 0
94 LP 732-35 PM* 11 31 08.3876130622 -14 57 21.250346429 16.97 15.97 14.24 14.33 10.94 M5 38 0
95 CD-31 9113 PM* 11 35 26.9474098036 -32 32 23.883014588 12.508 11.322 9.813 8.821 7.664 M2V 134 1
96 LP 613-62 PM* 11 51 55.3008985533 -01 31 32.224064560   16.22 15.640 14.228 12.322 M5 10 0
97 LP 851-346 PM* 11 55 42.8513523068 -22 24 58.793286295   19.6     13.203 M7.5V 23 0
98 LP 851-399 LM* 11 57 53.4844492792 -23 49 00.757119752   16.498 14.77 13.51 11.84 M4.5 11 0
99 LP 434-33 PM* 12 03 09.2245267454 +17 01 22.505993427   20.0 19.130 17.41 15.33 M6+V 16 0
100 LP 908-25 PM* 12 09 54.0829518990 -29 20 15.538993508   15.5 14.719 13.488 11.847 M4 9 0
101 LP 734-32 PM* 12 10 05.6010228141 -15 04 16.955266471   13.64 12.083 11.912 9.35 dM3.5 51 0
102 L 758-108 PM* 12 11 11.7598897837 -19 57 38.069257626 14.475 13.276 11.709 10.619 9.253 dM3.0 56 1
103 Ross 695 PM* 12 24 52.5025942844 -18 14 32.249916666 13.954 12.863 11.272 10.243 8.991 dM2.0 103 0
104 LP 795-15 PM* 12 25 32.0272766816 -15 59 41.815334292   16.4 15.264 13.758 11.846 M5.5 16 0
105 Wolf 427 PM* 12 35 00.7054724849 +09 49 42.567052394 13.884 12.85 11.405 10.413 9.171 M1V 67 1
106 2MASS J12363959-1722170 PM* 12 36 39.5814365214 -17 22 17.266559975           M6 6 0
107 LP 735-29 PM* 12 44 00.7399827296 -11 10 30.389023424   15.1 14.180 13.947 11.18 M4.5V 20 0
108 LP 853-34 PM* 12 47 10.0316885523 -22 22 37.081020127   13.81 12.286 12.027 9.99 M2 13 0
109 Wolf 437 PM* 12 47 56.6249317199 +09 45 05.031923360 14.088 12.958 11.395 10.235 8.707 M3.5Ve 112 0
110 APMPM J1251-2121 PM* 12 50 52.6507580410 -21 21 13.606786816   21.3 19.0 16.67   M7.5e 21 0
111 G 150-17 PM* 13 35 50.7573817441 +14 41 11.772567504   13.911 12.399 12.033 9.989 M2.5Ve 14 0
112 LP 738-14 PM* 13 48 07.2757085189 -13 44 31.599911169   16.79 15.07 14.90 12.054 M4.5 18 0
113 LP 739-2 PM* 13 58 16.1713738755 -12 02 59.045096408     14.486 13.11 11.4 M4.5V 19 0
114 PM J14223-7023 PM* 14 22 19.4745446558 -70 23 37.014877545     15.17     M5 5 0
115 NAME Proxima Centauri Er* 14 29 42.9451234609 -62 40 46.170818907 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1028 0
116 LP 859-11 PM* 15 08 23.3949383546 -23 51 37.196146756   13.41 11.875 11.610 9.69 M2 15 0
117 Ross 1047 PM* 15 09 35.5922330748 +03 10 00.551602913 14.131 12.986 11.473 10.405 9.052 M2V 63 0
118 SCR J1546-5534 PM* 15 46 41.6913113035 -55 34 47.486459295   18.2   16.4 12.96 M7.5 10 0
119 LP 861-22 PM* 16 06 29.4660342035 -24 07 24.676116371     14.999 13.692 11.993 M4.5 6 0
120 LP 917-25 PM* 16 20 37.6175230663 -30 39 40.542357338   13.39 11.96 10.98 9.81 M2 9 0
121 L 338-152 PM* 16 22 40.9573940654 -48 39 20.016719673 14.297 13.247 11.783 10.804 9.653 M3 43 0
122 L 74-113 PM* 16 48 24.4692934575 -72 58 33.913110391 14.077 12.887 11.326 10.341 9.242 M2 52 0
123 VB 8 Er* 16 55 35.2561420232 -08 23 40.752903617   18.7 16.916 14.566 12.24 M7Ve 395 0
124 G 139-27 PM* 17 16 40.9809926333 +08 03 30.204061380 14.301 13.087 11.529 10.48 9.219 M2.5Ve 60 0
125 G 155-29 ** 18 38 44.7453029160 -14 29 26.023943291 13.969 12.782 11.224 10.183 8.925 M2.5 45 0
126 LP 867-15 PM* 18 42 11.0952645672 -23 28 58.634156101   13.76 12.100 11.751 9.61 M3.5 13 0
127 CD-48 12818 PM* 18 59 07.4586018326 -48 16 28.064882086 13.73 12.615 11.142 10.104 8.8 M4V 50 0
128 VB 10 Er* 19 16 57.6103282334 +05 09 01.588675251     17.30     M8V 443 1
129 LAWD 74 WD* 19 20 34.9229875534 -07 40 00.066805378 11.553 12.345 12.290 12.229 12.164 DBQA5 204 0
130 L 348-141 PM* 19 31 53.2429762115 -48 33 53.751043810       14.15   M4.5 5 0
131 HD 184266 HB* 19 34 15.3865221565 -16 19 00.228332880 8.27 8.12 7.57     F2V 111 0
132 HD 187111 Pe* 19 48 39.5745673482 -12 07 19.741286114   8.92 7.75     G8wF8III/IV 133 0
133 2MASS J20450238-6332066 BD* 20 45 02.3968336560 -63 32 06.584854738       19.03 16.053 L1 17 0
134 Wolf 896 PM* 20 56 46.5970399407 -10 26 54.749213101 14.112 12.999 11.487 10.428 9.106 dM2.5 87 0
135 APMPM J2101-4125 PM* 21 01 03.8198584624 -41 14 33.284487413   16.19 14.49 14.30   M4 10 0
136 WT 766 PM* 21 01 07.3953005885 -49 07 25.073695218   14.99 13.33 13.03   M4.5 13 0
137 Wolf 918 PM* 21 09 17.4274978426 -13 18 09.019135738 13.501 12.362 10.869 9.891 8.805 M1V 125 0
138 2MASS J21481595-1401059 PM* 21 48 15.9422012368 -14 01 06.017247853       20.20 17.15 M6.5 1 0
139 2MASSW J2206228-204705 SB* 22 06 22.80192 -20 47 05.8956     19.788 17.452 14.877 M8.0V 44 0
140 L 83-10 PM* 22 10 10.6094517378 -70 10 10.520195980   14.453 13.047     M2 8 0
141 L 83-11 PM* 22 10 20.0851478758 -70 10 08.095802452     14.4     M3 4 0
142 LP 1032-120 PM* 22 23 09.6859655711 -43 27 38.732223123   15.39       M3 12 0
143 DENIS J222644.3-750342 LM* 22 26 44.4170434679 -75 03 42.530102799         15.21 M8 14 0
144 LEHPM 4771 PM* 22 30 09.4089629565 -53 44 55.526483646       14.261   M4.5 14 0
145 L 166-44 PM* 22 34 04.352616 -61 07 40.67904   16.46 14.81 14.38   M4.5 5 0
146 LP 1033-31 ** 22 35 04.893816 -42 17 48.02712   14.879 13.316 13.015   M4.5+M4.5 13 0
147 HD 214100 PM* 22 36 09.6872623687 -00 50 29.765710791   11.431 9.930 9.877   M1V 76 0
148 L 357-25 PM* 22 40 57.9761682765 -45 43 24.735327536   14.1 13.828 13.491   M3 13 0
149 L 166-3 PM* 22 42 00.0474140128 -59 15 12.429358044   15.560 14.017     M4 11 0
150 G 275-12 ** 23 10 00.2353130305 -21 11 42.847175002   14.32 12.77 12.55   M1+M4 14 0
151 Feige 110 HS* 23 19 58.3995050606 -05 09 56.170282845 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 575 1
152 L 120-120 PM* 23 25 24.898320 -67 40 07.16232   15.98 14.38 14.07 11.48 M4 11 0
153 APMPM J2330-4737 PM* 23 30 16.1685883829 -47 36 45.084170030     18.081 15.867 13.682 M6e 11 0
154 G 157-77 PM* 23 35 10.4621642606 -02 23 20.614795879   16.60 14.69 14.447   M5.0Ve 71 0
155 LP 878-73 PM* 23 40 47.6424271413 -22 25 30.867670857   16.4       M4 10 0
156 LEHPM 6364 PM* 23 52 27.5750913488 -36 09 12.949558906           M4.5 4 0
157 LTT 9783 PM* 23 53 08.2691539642 -42 32 03.551654003   14.425 12.845 12.526   M3 8 0
158 LP 987-47 PM* 23 53 40.9573899364 -35 59 05.877012728     13.474 13.273   M4 11 0
159 G 273-163 PM* 23 54 50.2093456009 -09 57 01.133580864   13.639 12.193 11.900 9.844 M2.5 10 0
160 LEHPM 6577 PM* 23 58 49.1688029984 -54 00 14.737763437           M3.5 3 0

    Equat.    Gal    SGal    Ecl

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2021.04.15-07:55:18

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