2016A&A...595A.105D


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.29CEST04:07:12

2016A&A...595A.105D - Astronomy and Astrophysics, volume 595A, 105-105 (2016/11-1)

Characterisation of red supergiants in the Gaia spectral range.

DORDA R., GONZALEZ-FERNANDEZ C. and NEGUERUELA I.

Abstract (from CDS):

Context. The infrared calcium triplet and its nearby spectral region have been used for spectral and luminosity classification of late-type stars, but the samples of cool supergiants (CSGs) used have been very limited (in size, metallicity range, and spectral types covered). The spectral range of the Gaia Radial Velocity Spectrograph (RVS) covers most of this region but does not reach the main TiO bands in this region, whose depths define the M sequence.
Aims. We study the behaviour of spectral features around the calcium triplet and develop effective criteria to identify and classify CSGs, comparing their efficiency with other methods previously proposed.
Methods. We measure the main spectral features in a large sample (almost 600) of red supergiants (RSGs) from three different galaxies, and we analyse their behaviour through a principal component analysis. Using the principal components, we develop an automatised method to differentiate CSGs from other bright late-type stars, and to classify them.
Results. The proposed method identifies a high fraction (0.98±0.04) of the supergiants in our test sample, which cover a wide metallicity range (supergiants from the Magellanic Clouds and the Milky Way) and with spectral types from G0 up to late-M. In addition, it is capable to separate most of the non-supergiants in the sample, identifying as supergiants only a very small fraction of them (0.02±0.04). A comparison of this method with other previously proposed shows that it is more efficient and selects less interlopers. A way to automatically assign a spectral type to the supergiants is also developed. We apply this study to spectra at the resolution and spectral range of the Gaia RVS, with a similar success rate.
Conclusions. The method developed identifies and classifies CSGs in large samples, with high efficiency and low contamination, even in conditions of wide metallicity and spectral-type ranges. As this method uses the infrared calcium triplet spectral region, it is specially useful for surveys looking for CSGs in high-extinction regions. In addition the method is directly applicable to the Gaia spectra.

Abstract Copyright: © ESO, 2016

Journal keyword(s): methods: data analysis - stars: massive - supergiants - Galaxy: stellar content - Magellanic Clouds

Status at CDS:  

CDS comments: Fig.2 SMC 381 not identified (incomplete format).

Simbad objects: 119

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Number of rows : 119

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* KN Cas s*r 00 09 36.3675084251 +62 40 04.119300189 11.79 11.21 9.49     M2Iep+B2.5III: 49 0
2 V* MZ Cas s*r 00 21 24.2851737319 +59 57 11.168889500   11.9 9.67     M2Ia-Iab 38 1
3 HD 236449 * 00 31 38.3348089002 +60 15 19.391656020 12.64 10.56 8.57     K2.5II-III 21 0
4 HD 4817 ** 00 51 16.3826364352 +61 48 19.772489132 9.88 8.08 6.18 4.73 3.64 K2.5Ib-IICN-1 71 0
5 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9384 1
6 V* HS Cas s*r 01 08 19.9201927629 +63 35 11.504718283 14.52 12.33 9.82     M4Ia 43 0
7 IRC +30021 Mi* 01 11 15.9342978462 +30 38 06.242372347       13.73   M10 74 0
8 BD+59 274 V* 01 33 29.2143975477 +60 38 47.710642767 12.90 10.64 8.54     M0.5Ib-II 39 0
9 BD+60 265 s*r 01 33 33.1682719604 +61 33 29.671604685   10.73 8.43     M0.5Iab 20 0
10 V* V595 Cas LP* 01 43 02.7150873354 +56 30 46.021838767 12.90 10.81 8.82     M2Ib: 32 0
11 V* V589 Cas s*r 01 46 05.4812080961 +60 59 36.677380361   11.2 8.886     M3Iab-Ib 27 0
12 V* WX Cas s*r 01 54 03.7384457029 +61 06 32.964198907   12.43 9.90     M2Iab-Ib 15 0
13 V* V778 Cas s*r 01 58 28.9111055202 +59 16 08.779236252   10.55 8.38     M2Iab 36 0
14 BD+59 372 V* 01 59 39.6660201964 +60 15 01.941653667   11.5 9.39     K5/M0Ib 18 0
15 V* XX Per LP* 02 03 09.3584858564 +55 13 56.623349355 11.66 10.34 8.20 6.02 4.19 M4Ib+ 78 0
16 V* KK Per s*r 02 10 15.7841643885 +56 33 32.663658069 12.32 9.96 7.74 5.86 4.29 M2Iab-Ib 98 0
17 V* V550 Per LP* 02 15 13.2967808917 +58 08 32.318206736 13.85 11.23 8.92 7.00 5.49 M0-M1I 41 0
18 HD 13686 * 02 15 55.3931311650 +63 14 10.676120231   8.845 7.016     K2.5Ib-II 31 0
19 V* PP Per s*r 02 17 08.2315250856 +58 31 46.961475114   11.60 9.16     M0-M1.5I 22 0
20 V* BU Per LP* 02 18 53.2909785794 +57 25 16.763845850 15.53 12.87 10.40     M4Ib 84 0
21 V* T Per s*r 02 19 21.8772655699 +58 57 40.351139759 13.40 10.78 8.45 6.58 4.94 M2Iab 93 0
22 V* V605 Cas s*r 02 20 22.4633097592 +59 40 16.911006172 13.41 10.80 8.36 6.42 4.85 M2Iab 58 0
23 V* AD Per s*r 02 20 29.0027235674 +56 59 35.243403712 12.70 10.16 7.8490   7.1111 M3Iab 117 1
24 V* PR Per s*r 02 21 42.4096612239 +57 51 46.148946906 12.84 10.31 8.00 6.13 4.60 M1-Iab-Ib 101 0
25 V* SU Per s*r 02 22 06.8945607706 +56 36 14.896842798 13.86 11.57 9.40     M3-M4Iab 131 0
26 V* S Per s*r 02 22 51.7103845023 +58 35 11.454759954 13.22 10.55 7.90     M4.5-7Iae 353 0
27 V* V439 Per s*r 02 23 11.0652506389 +57 11 57.982874757 12.81 10.41 8.1650   6.8612 M0.5Iab 68 0
28 V* V403 Per s*r 02 23 24.1095004917 +57 12 43.040134182 13.32 10.81 8.4020 6.67 5.21 M0Iab 63 0
29 V* V441 Per s*r 02 25 21.8599381234 +57 26 14.137762984 13.07 10.61 8.22 6.09 4.29 M3Iab 70 0
30 V* YZ Per s*r 02 38 25.4198565398 +57 02 46.198062168 14.96 12.37 10.01     M1Iab 86 0
31 V* GP Cas s*r 02 39 50.4398942442 +59 35 51.303381589 16.80 14.21 11.50     M2Iab 64 0
32 HD 237006 Em* 02 49 08.8433571770 +58 00 48.438807366 10.94 10.67 9.26     K0 34 0
33 V* V648 Cas s*r 02 51 03.9484484442 +57 51 19.923645406 14.78 12.11 9.38 6.83 4.76 M2Ia 52 0
34 HD 17958 V* 02 56 24.6494731057 +64 19 56.796732528   8.176 6.167     K3Ib 49 0
35 HD 18391 s*y 02 59 48.7224844706 +57 39 47.671063257 10.56 8.83 6.89     G5Ia-Ib 96 0
36 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5614 1
37 BD+59 580 * 03 00 39.9478489168 +59 57 59.956027389 14.91 12.23 9.91 7.94 6.38 M1Ib 15 0
38 V* V411 Per LP* 03 15 08.4599621477 +54 53 03.040652957   12.1 10.6     M1Ib 17 0
39 BD+55 780 * 03 25 21.6175484057 +55 33 10.162930773   11.87 9.76     M2 6 0
40 NAME Per Arm PoG 03 30 +45.0           ~ 1239 0
41 V* V Eri AB* 04 04 18.7986928435 -15 43 30.458637226   9.96 8.59     M7+II: 77 0
42 V* DG Eri LP* 04 20 41.3453582740 -16 49 47.903085047   8.624 7.049     M4III 41 0
43 V* V1145 Tau LP* 04 29 38.9420938865 +05 09 51.373458672   8.74 6.99     M3.5IIICa-0.5 33 0
44 [W60] B84 s*r 05 23 02.7497346296 -69 20 37.124579567 16.923 15.114 13.236 12.13 11.024 M2Iab 13 0
45 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14746 1
46 [W60] A3 s*r 05 26 28.2370813967 -69 07 57.643351760 17.063 15.084 13.126 10.81 10.993 M1Iab 18 0
47 * 119 Tau s*r 05 32 12.7525072 +18 35 39.243589 8.63 6.41 4.33 2.55 1.13 M2Iab-Ib 259 0
48 SP77 54-23c s*r 05 37 20.5034034662 -69 19 38.654073712 16.379 14.064 12.526 11.50 10.704 K4Iab 18 0
49 SP77 54-25 s*y 05 37 58.6664611493 -69 14 23.994647248   15.36 13.238 12.08 11.116 G5Ia 15 0
50 V* V440 Aur LP? 05 51 25.7503310663 +32 07 28.908163321 10.04 8.00 6.26 4.69 3.30 M3III 57 0
51 * pi. Aur LP* 05 59 56.0982950011 +45 56 12.276134867 7.80 5.97 4.25 2.56 1.08 M3IIb 158 0
52 * 56 Leo LP? 10 56 01.4689991 +06 11 07.327524 8.45 7.24 5.78 3.53 1.44 M5.5III: 160 0
53 V* BK Vir AB* 12 30 21.0150535628 +04 24 59.159360514 9.60 8.82 7.28     M7-III: 130 0
54 V* TU CVn LP* 12 54 56.5218661991 +47 11 48.173985326 8.96 7.39 5.84     M5-III-IIIa 88 0
55 V* SW Vir AB* 13 14 04.3908742003 -02 48 25.155302846 9.24 8.52 6.85     M7III: 243 0
56 V* BY Boo LP? 14 07 55.7560046 +43 51 16.025944 8.52 6.86 5.28 3.43 1.77 M4.5III 165 0
57 V* RX Boo AB* 14 24 11.6240733185 +25 42 13.381760051   9.23 8.60     M7.5-M8 416 0
58 V* RR UMi LP* 14 57 35.0072853 +65 55 56.856956 7.86 6.19 4.54 2.69 0.97 M4.5III 164 0
59 * tau04 Ser LP* 15 36 28.1823639850 +15 06 05.189204744 8.64 7.64 6.25     M5IIIa 97 0
60 * g Her AB* 16 28 38.5485851 +41 52 54.040593 7.70 6.53 5.01 2.49 0.26 M6-III 363 0
61 V* V2111 Oph LP* 16 45 11.4490935147 -03 05 05.795924841   8.77 7.14     M5-M5.5IIIb: 32 0
62 V* V636 Her LP* 16 47 19.7464967323 +42 14 20.090790967 9.07 7.48 5.87     M4.5III 62 0
63 IRC +10313 Mi* 16 51 05.9084651529 +10 20 51.449226801   13.0       M8/9 22 0
64 IRC +10322 Mi* 17 14 19.3828520684 +08 56 02.913942040           M9-10 73 0
65 * alf Her ** 17 14 38.85818 +14 23 25.2262   4.51 3.06     M5Ib-II+G5III+F2V: 189 0
66 V* MW Her Mi* 17 35 40.0033419605 +15 35 12.237445417   14.62 12.98 16.28   M8/9 76 0
67 * 93 Her * 18 00 03.4161099403 +16 45 03.285548353 7.15 5.93 4.67 3.80 3.21 K0.5IIb 129 0
68 * 104 Her V* 18 11 54.1564925292 +31 24 19.246928288 8.56 6.62 4.97     M3III 111 0
69 V* UY Sct s*r 18 27 36.5286196699 -12 27 58.893326502   14.20 11.20 9.51 6.93 M4Iae 52 0
70 V* HK Dra LP* 18 34 30.8609934082 +51 46 56.130368069   8.128 6.658     M4III-IIIb 27 0
71 V* XY Lyr LP* 18 38 06.4763629762 +39 40 05.966301677 9.09 7.67 6.05 3.84 1.88 M4.5-M5+II 117 0
72 V* V913 Aql Mi* 18 54 28.9606136354 +10 37 57.067196107   9.01 7.44     M4III 23 0
73 * del02 Lyr LP* 18 54 30.2833502 +36 53 55.013331 7.62 5.97 4.30 2.52 0.89 M4II 219 0
74 V* UW Aql s*r 18 57 33.5571226959 +00 27 19.882877403 13.50 11.37 8.80 6.42 4.59 M2+Iab 32 0
75 V* V842 Aql LP* 19 13 54.4325332652 +02 37 30.820387530   10.41 8.95     M6+III: 14 0
76 * tet Lyr * 19 16 22.0948728 +38 08 01.423443 6.87 5.64 4.38 3.51 2.93 K0II 184 0
77 HD 181475 V* 19 20 48.3126420075 -04 30 09.010219941   9.09 6.96     K7IIa 41 0
78 V* V450 Aql LP* 19 33 46.0323868287 +05 27 56.531527877   8.00 6.48     M5-M5.5III 53 0
79 V* V340 Sge LP? 19 39 25.3354745662 +16 34 16.036192017   8.330 6.344     K4Ib 76 0
80 V* V973 Cyg LP* 19 44 49.0394103223 +40 43 00.487861940 9.90 7.99 6.37 4.78   M3.5III 63 0
81 * gam Aql * 19 46 15.5802908 +10 36 47.740788 5.93 4.23 2.72 1.65 0.87 K3II 418 0
82 HD 190788 V* 20 05 50.3401329813 +25 36 03.155983238 12.44 10.23 7.95 5.78 3.99 M3-Ib-II 24 0
83 V* AC Dra LP* 20 20 06.0087366824 +68 52 49.140595314   7.14 5.55     M4.5-M5III 46 0
84 V* BI Cyg s*r 20 21 21.8871531507 +36 55 55.725144903   11.48 8.40     M4Iab 96 0
85 V* BC Cyg s*r 20 21 38.5480930133 +37 31 58.917783927   14.61 11.30     M3.5Ia 151 0
86 V* RW Cyg s*r 20 28 50.5902663365 +39 58 54.418023246 13.00 10.60 8.00 5.32 3.25 M3-M4Ia-Iab 109 0
87 V* EU Del LP* 20 37 54.7272555845 +18 16 06.874014451 8.42 7.38 5.89 3.24 0.97 M6III 164 0
88 HD 196819 *iN 20 38 17.1710424007 +42 04 25.257164427   9.32 7.55     K2.5IIb 27 1
89 V* DG Cyg Mi* 20 43 25.4434555300 +43 11 50.760999610   16.55 13.41 10.15 8.34 M9 38 0
90 * k Aqr LP* 20 47 44.2389847 -05 01 39.721978 8.04 6.11 4.44 2.97 1.66 M3III 118 0
91 V* V1981 Cyg LP* 21 02 24.1996297679 +44 47 27.527854906 9.73 7.90 6.23 4.46 2.90 M4.5III 102 0
92 * ksi Cyg SB* 21 04 55.8622910 +43 55 40.264460 7.17 5.39 3.73 2.55 1.63 K4.5Ib-II 294 0
93 * f02 Cyg * 21 06 36.0938154 +47 38 54.249030   6.079 4.514     K4Ib-IIa 101 0
94 V* V419 Cep LP? 21 12 47.2469081501 +60 05 52.799101380   8.95 6.62     M2Ib 49 0
95 V* NV Peg LP* 21 28 59.7714995297 +22 10 45.980028656   7.31 5.95     M4.5IIIa 45 0
96 * mu. Cep s*r 21 43 30.4610574 +58 46 48.160181 8.85 6.43 4.08 1.98 0.22 M2-Ia 619 1
97 HD 207328 * 21 46 16.6040090312 +58 03 44.908960618   9.35 7.45     M3IIIaBa0.5 13 0
98 V* EP Aqr AB* 21 46 31.8467491729 -02 12 45.901666975   7.93 6.78     M7-III: 207 0
99 HD 212062 AB* 22 21 41.8004610645 -07 36 30.070524734   10.07 8.81     M7- 46 0
100 V* RW Cep s*r 22 23 07.0152079533 +55 57 47.616196874 11.25 8.87 6.65 4.94 3.78 K2_0-Ia 148 0
101 V* ST Cep s*r 22 30 10.7378149736 +57 00 03.067223413 14.30 11.98 9.70 7.50 5.75 M2Ia-Iab 71 0
102 V* W Cep s*r 22 36 27.5633747594 +58 25 33.953361477   9.44 7.59     M0Iaep 84 0
103 V* V416 Lac LP* 22 38 37.9229848 +56 47 44.282738   6.684 5.167     M4+III 90 0
104 V* U Lac s*r 22 47 43.4264404880 +55 09 30.316069125 13.20 11.74 9.40     M3Ia 68 0
105 V* MY Cep s*r 22 54 31.6975860144 +60 49 38.970114015           M7.5I 77 0
106 HD 217673 * 23 01 30.7149820500 +57 06 19.659005714   7.684 6.207     K1.5II 44 0
107 V* GU Cep s*r 23 10 10.8924 +61 14 29.836   12.38 9.63     M3I 20 1
108 V* SS And LP* 23 11 30.0687028037 +52 53 12.492735852   10.68 9.16     M7-II: 28 0
109 V* V356 Cep s*r 23 13 31.5013372307 +60 30 18.795790142   12.39 10.061     M2I 12 1
110 V* V809 Cas LP* 23 19 23.7721038117 +62 44 23.192492482   8.932 6.671     K4.5Ib 57 0
111 V* V358 Cas s*r 23 30 27.3721802597 +57 58 33.704652387   12.68 9.98     M3Ia 45 0
112 V* PZ Cas s*r 23 44 03.2794635453 +61 47 22.187155352 12.80 11.48 8.90 6.08 3.90 M3Ia 187 0
113 HD 223173 V* 23 47 01.9178820292 +57 27 04.887795993   7.149 5.503     K3-IIb 66 0
114 V* TZ Cas s*r 23 52 56.2369314440 +61 00 08.390398268 14.18 11.75 9.18     M3Iab 79 0
115 BD+63 2073 * 23 53 58.0565981565 +64 15 02.832779703 14.85 12.54 10.15 8.10 6.50 M0Ib 14 0
116 * rho Cas LP* 23 54 23.0339951270 +57 29 57.766930774 7.00 5.85 4.59 3.63 2.89 G2_0 359 0
117 V* XZ Psc LP* 23 54 46.6242053 +00 06 33.518590 8.71 7.20 5.61     M5III 69 0
118 NAME Scutum Spiral Arm PoG ~ ~           ~ 273 0
119 NAME Galactic Bar reg ~ ~           ~ 881 0

    Equat.    Gal    SGal    Ecl

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2020.05.29-04:07:12

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