2017A&A...605A.113M

Query : 2017A&A...605A.113M

2017A&A...605A.113M - Astronomy and Astrophysics, volume 605A113-113 (2017/9-1)

The Ca II infrared triplet's performance as an activity indicator compared to Ca II H and K. Empirical relations to convert Ca II infrared triplet measurements to common activity indices.

MARTIN J., FUHRMEISTER B., MITTAG M., SCHMIDT T.O.B., HEMPELMANN A., GONZALEZ-PEREZ J.N. and SCHMITT J.H.M.M.

Abstract (from CDS):

Aims. A large number of Calcium infrared triplet (IRT) spectra are expected from the Gaia and CARMENES missions. Conversion of these spectra into known activity indicators will allow analysis of their temporal evolution to a better degree. We set out to find such a conversion formula and to determine its robustness.
Methods. We have compared 2274 CaII IRT spectra of active main-sequence F to K stars taken by the TIGRE telescope with those of inactive stars of the same spectral type. After normalizing and applying rotational broadening, we subtracted the comparison spectra to find the chromospheric excess flux caused by activity. We obtained the total excess flux, and compared it to established activity indices derived from the CaII H and K lines, the spectra of which were obtained simultaneously to the infrared spectra.
Results. The excess flux in the CaII IRT is found to correlate well with R'HK and R+HK, as well as SMWO, if the B-V-dependency is taken into account. We find an empirical conversion formula to calculate the corresponding value of one activity indicator from the measurement of another, by comparing groups of datapoints of stars with similar B-V.

Abstract Copyright: © ESO, 2017

Journal keyword(s): stars: activity - stars: chromospheres - stars: magnetic field - stars: atmospheres - stars: atmospheres

Simbad objects: 110

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Number of rows : 110
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 * 85 Peg SB* 00 02 10.3487193861 +27 04 54.599101714 6.47 6.42 5.75 5.16 4.73 G5VbFe-2 568 0
2 * tet Scl PM* 00 11 44.0210769384 -35 07 59.212953084   5.661 5.239     F5V 161 0
3 HD 3795 SB* 00 40 32.7939851012 -23 48 17.728718238   6.84 6.14     K0VFe-1.5CH-1.3 227 0
4 HD 4628 PM* 00 48 22.9759750919 +05 16 50.209484954 7.22 6.64 5.74 4.99 4.52 K2.5V 544 0
5 HD 5133 PM* 00 53 01.1348555154 -30 21 24.891057111 8.801 8.11 7.171 6.639 6.179 K2.5Vk: 186 0
6 * mu. Cas SB* 01 08 16.3029454473 +54 55 12.561201263 5.93 5.86 5.17 4.55 4.13 G5Vb 593 1
7 * 44 And PM* 01 10 18.7404097416 +42 04 53.309986932   6.249 5.665     F8V 194 0
8 HD 10086 PM* 01 39 36.0182613965 +45 52 39.984060559   7.30   6.2   G5V 116 0
9 HD 10307 SB* 01 41 47.1268541099 +42 36 48.221567818 5.69 5.58 4.96 4.43 4.10 G1V 523 0
10 * 107 Psc PM* 01 42 29.7625251280 +20 16 06.645657710 6.57 6.08 5.24 4.55 4.12 K1V 594 0
11 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1354 1
12 HD 12846 PM* 02 06 30.2435726136 +24 20 02.371269372 7.672 7.542 6.885 6.551 6.181 G2V 126 0
13 HD 16160 PM* 02 36 04.9013368983 +06 53 12.383654295   6.81   5.2   K3V 583 0
14 HD 17925 RS* 02 52 32.1281856011 -12 46 10.968056223 7.48 6.91 6.05 5.34 4.89 K1V 557 0
15 HD 19019 PM* 03 03 50.8149430128 +06 07 59.884850532   7.473 6.926     G0V 104 0
16 * iot Per PM* 03 09 04.0193012009 +49 36 47.802053343 4.76 4.64   3.7   G0V 578 0
17 HD 20367 PM* 03 17 40.0468295160 +31 07 37.360398072   6.962 6.399     F8V 144 1
18 HD 20619 PM* 03 19 01.8943387080 -02 50 35.493108792 7.82 7.697 7.039 6.691 6.343 G1.5V 220 0
19 * kap01 Cet BY* 03 19 21.6964175772 +03 22 12.714979884 5.71 5.52 4.85 4.27 3.91 G5V 948 0
20 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 2073 1
21 HD 22468 RS* 03 36 47.2904292073 +00 35 15.943692002 7.09 6.79 5.90     K2:Vnk 1206 0
22 HD 25457 TT* 04 02 36.7442719512 -00 16 08.119921152   5.88 5.38     F7V 293 0
23 * 39 Tau ** 04 05 20.2580439192 +22 00 32.057399592   6.54 5.90 5.5   G5V 235 0
24 * 50 Per RS* 04 08 36.6171573432 +38 02 23.058806100 7.78 5.97   5.2   F8V 238 0
25 * omi02 Eri PM* 04 15 16.3196189945 -07 39 10.330779018 5.69 5.25 4.43 3.74 3.29 K0V 879 0
26 HD 26913 BY* 04 15 25.7871375264 +06 11 58.751401236 7.790 7.580 6.920 6.554 6.195 G6V 243 0
27 HD 28099 BY* 04 26 40.1217122952 +16 44 48.885808416 8.98 8.78 8.12 7.56 7.23 G2+V 450 0
28 * 58 Eri BY* 04 47 36.2917029384 -16 56 04.040472552   6.14 5.50     G2.5IV-V 466 0
29 HD 32147 PM* 05 00 48.9993452248 -05 45 13.224327192 8.27 7.27 6.21 5.36 4.87 K3+V 500 1
30 * lam Aur PM* 05 19 08.4754499121 +40 05 56.585080940 5.46 5.33 4.71 4.18 3.86 G1.5IV-VFe-1 567 0
31 * 111 Tau BY* 05 24 25.4632701888 +17 23 00.726415944   5.52   4.7   F8V 370 0
32 HD 37394 BY* 05 41 20.3356800431 +53 28 51.808818686 7.58 7.07 6.23 5.54 5.11 K0V 365 0
33 HD 38858 PM* 05 48 34.9402551240 -04 05 40.721787744 6.71 6.61 5.97     G2V 349 1
34 * chi01 Ori SB* 05 54 22.9829893 +20 16 34.222038 5.08 5.00 4.40 3.90 3.59 G0V 895 0
35 HD 42618 PM* 06 12 00.5668858951 +06 46 59.057784676 7.632 7.496 6.839 6.478 6.143 G4V 214 0
36 HD 42807 RS* 06 13 12.5028624208 +10 37 37.712484445   7.12   6.0   G5V 254 0
37 HD 43162 LM* 06 13 45.2953762392 -23 51 42.971547996   7.068 6.366 5.94 5.61 G6.5V 200 0
38 HD 43587 SB* 06 17 16.1297031648 +05 05 59.904745548 6.400 6.29 5.70 5.3   G0V 258 0
39 HD 45067 PM* 06 25 16.5462760045 -00 56 45.178443827   6.43 5.90     F9V 217 0
40 HD 68017 ** 08 11 38.6535558665 +32 27 25.787520185 7.63 7.50   6.4   G3V 188 0
41 V* V478 Hya BY* 08 22 49.9527726648 +01 51 33.552251064   9.30 8.711   7.999 G1/2V 112 2
42 HD 71148 PM* 08 27 36.7846606556 +45 39 10.754559179   6.94   5.9   G1V 208 0
43 V* V401 Hya BY* 08 37 50.2937396460 -06 48 24.779911420 7.577 7.394 6.725 6.365 6.029 G5V 197 0
44 * pi.01 UMa BY* 08 39 11.7046112880 +65 01 15.263122512 6.33 6.26 5.64 5.12 4.79 G0.5V 608 0
45 * 5 LMi PM* 08 50 32.2228174512 +33 17 06.195898140   6.738 6.210     F7Vs 192 0
46 HD 75767 SB* 08 52 16.3908909000 +08 03 46.496176848   8.96   6.2   G1.5V 123 0
47 * rho01 Cnc PM* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1223 1
48 HD 76151 PM* 08 54 17.9470964696 -05 26 04.054298491 6.89 6.67 6.00     G2V 580 0
49 HD 82443 BY* 09 32 43.7594578944 +26 59 18.706023348   7.78   6.6   G9V(k) 271 1
50 * 11 LMi RS* 09 35 39.5021937366 +35 48 36.477051175 6.560 6.110 5.340 4.79 4.42 G8Va 407 0
51 HD 87883 PM* 10 08 43.1405863056 +34 14 32.146654632   8.54 7.55     K0V 137 1
52 * 34 Leo ** 10 11 38.2115197 +13 21 18.407128   6.891 6.427     F6V 123 0
53 * 47 UMa PM* 10 59 27.9727514012 +40 25 48.920572724   5.66   4.7   G1-VFe-0.5 824 1
54 HD 97334 BY* 11 12 32.3503039560 +35 48 50.688978228   7.02 6.41     G2 306 0
55 HD 97658 PM* 11 14 33.1612754184 +25 42 37.390358520 9.049 8.569 7.714 7.259 6.835 K1V 222 1
56 * 88 Leo ** 11 31 44.9441592503 +14 21 52.210714391   6.77   5.9   F9.5V 226 0
57 * 20 Crt PM* 11 34 29.4864443348 -32 49 52.822793411   6.79 5.98 7.17   K0V 259 0
58 * 61 UMa PM* 11 41 03.0162706212 +34 12 05.881605449 6.31 6.08 5.34 4.73 4.38 G8V 654 0
59 HD 103095 Pe* 11 52 58.7673387755 +37 43 07.254113125 7.38 7.20 6.45 5.80 5.35 K1V_Fe-1.5 842 1
60 HD 106516 SB* 12 15 10.55731 -10 18 44.6354 6.44 6.57 6.11     F9VFe-1.7CH-0.7 443 0
61 HD 111456 ** 12 48 39.4470003426 +60 19 11.037876361   6.299 5.831     F7V 213 0
62 HD 111395 BY* 12 48 47.0481446766 +24 50 24.818642182   6.98   5.8   G5V 206 0
63 * alf Com A PM* 13 09 59.285492 +17 31 45.85645   5.25 4.80     F5V 247 0
64 * bet Com PM* 13 11 52.3938268062 +27 52 41.462309460 4.92 4.84 4.25 3.77 3.47 F9.5V 946 0
65 HD 115043 PM* 13 13 37.0081725552 +56 42 29.759356008   7.423 6.813     G1Va 274 0
66 * e Vir PM* 13 16 46.5148594512 +09 25 26.960139646   5.81   4.8   G0IV 590 1
67 HD 115404 PM* 13 16 51.0514297623 +17 01 01.840901307   7.69 6.66     K2V 316 0
68 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 742 1
69 * 70 Vir PM* 13 28 25.8085908881 +13 46 43.638308807 5.930 5.680 4.970 4.37 3.98 G4Va 754 1
70 HD 118972 PM* 13 41 04.1705560968 -34 27 50.962695660 8.278 7.78 6.92 6.448 8.390 K0V 114 0
71 * 14 Boo ** 14 14 05.1793499304 +12 57 33.996726108   6.08   5.2   F8V 186 0
72 HD 126053 PM* 14 23 15.2847745835 +01 14 29.641269692 6.98 6.90 6.27 5.71 5.39 G1.5V 442 0
73 V* EK Dra BY* 14 39 00.2104038120 +64 17 29.979649860   8.243 7.604     G5VFe-0.7CH-1(k) 500 0
74 * ksi Boo A PM* 14 51 23.3884659504 +19 06 01.619801424   5.40 4.675     G7Ve 564 0
75 HD 131977 BY* 14 57 28.0007918772 -21 24 55.727265310 7.89 6.83 5.72 4.74 4.19 K4V 525 0
76 * i Boo ** 15 03 47.29565 +47 39 14.6228           G0Vn 565 1
77 * eta CrB A * 15 23 12.230856 +30 17 17.56212   6.123 5.577     G2V 237 0
78 * psi Ser PM* 15 44 01.8185683752 +02 30 54.600593940       5.4   G2.5V 270 0
79 * 14 Her PM* 16 10 24.3156759007 +43 49 03.507406809   7.57   6.1   K0V 482 1
80 HD 145825 SB* 16 14 11.9148076848 -31 39 49.154897988   7.21 6.54     G3V 114 0
81 * 18 Sco PM* 16 15 37.2702755653 -08 22 09.982125430   6.15 5.50     G2Va 671 0
82 HD 150706 PM* 16 31 17.5830478008 +79 47 23.197555824   7.622 7.016     G0 234 1
83 * 12 Oph BY* 16 36 21.4496896968 -02 19 28.513024233 7.00 6.55 5.77 5.13 4.74 K1V 525 0
84 HD 152391 PM* 16 52 58.8025159848 -00 01 35.118396116   7.40 6.64     G8.5Vk: 396 0
85 V* V2213 Oph BY* 17 05 16.8186610814 +00 42 09.221511649   6.59   5.6   F8.5IV-V 352 0
86 V* V2215 Oph RS* 17 16 13.3624141798 -26 32 46.136563394   7.50 6.34   4.8 K5V 334 0
87 * w Her RG* 17 20 39.5674498400 +32 28 03.877958860 6.08 6.01 5.39 4.89 4.56 G0V 481 0
88 HD 159222 PM* 17 32 00.9920372760 +34 16 16.133732796 7.38 7.21   6.1   G1V 266 0
89 HD 159332 PM* 17 33 22.8242819328 +19 15 24.040331928   6.130 5.648     F4V 150 0
90 HD 160346 SB* 17 39 16.9163262 +03 33 18.875718   7.496 6.525 5.9   K3-V 321 0
91 * 70 Oph A SB* 18 05 27.2484131991 +02 30 00.526614953       3.6   K0V 252 0
92 HD 165401 PM* 18 05 37.4541846601 +04 39 25.797083469 7.443 7.399 6.786 6.432 6.09 G2V 236 0
93 HD 166620 PM* 18 09 37.4162111401 +38 27 27.998016381 7.86 7.27 6.40 5.63 5.14 K2V 481 0
94 HD 168009 PM* 18 15 32.4633956040 +45 12 33.540706764   6.931 6.298     G1V 239 0
95 HD 178428 SB* 19 07 57.3202744638 +16 51 12.174804109   6.77 6.07 5.6   G4.5V 200 0
96 HD 179949 BY* 19 15 33.2300695008 -24 10 45.671448072   6.772 6.237     F8V 435 1
97 HD 181321 SB* 19 21 29.7277723051 -34 59 00.356331012 7.22 7.11 6.48     G2V 151 0
98 * sig Dra PM* 19 32 21.5902098601 +69 39 40.235805206 5.860 5.460 4.680 4.04 3.63 K0V 691 0
99 HD 184385 PM* 19 33 25.5526276656 +21 50 25.176346080 7.970 7.630 6.880 6.468 6.098 G8V 107 0
100 * 16 Cyg B PM* 19 41 51.9726777456 +50 31 03.089030916 7.07 6.86 6.20 5.76 5.42 G3V 949 1
101 * omi Aql PM* 19 51 01.6436960928 +10 24 56.592457524   5.66   4.8   F8V 481 0
102 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 991 1
103 HD 190007 BY* 20 02 47.0456863896 +03 19 34.265904204   8.60   6.8   K5V 246 0
104 * 15 Sge PM* 20 04 06.2207683221 +17 04 12.676556401   6.390 5.788 5.4   G0V 420 0
105 HD 190771 PM* 20 05 09.7757965056 +38 28 42.555790200   6.82   5.8   G2V 197 0
106 HD 197076 PM* 20 40 45.1407228005 +19 56 07.930118119 7.14 7.06 6.44 5.95 5.61 G5V 278 0
107 * 61 Cyg A BY* 21 06 53.9395895022 +38 44 57.902349973 7.50 6.39 5.21 4.19 3.54 K5V 1099 0
108 V* HN Peg BY* 21 44 31.3299461136 +14 46 18.983292600       6.16   G0V+ 561 0
109 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1193 1
110 * sig Peg PM* 22 52 24.0744611045 +09 50 08.394417666   5.63 5.16 4.9   F6V 289 0

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