2007A&A...469..309C


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.12CET03:05:34

2007A&A...469..309C - Astronomy and Astrophysics, volume 469, 309-317 (2007/7-1)

Hα and the Ca II H and K lines as activity proxies for late-type stars.

CINCUNEGUI C., DIAZ R.F. and MAUAS P.J.D.

Abstract (from CDS):

The main chromospheric activity indicator is the S index, which is the ratio of the flux in the core of the Ca II H and K lines to the continuum nearby, and is well studied for stars from F to K. Another chromospheric proxy is the Hα line, which is believed to be tightly correlated with the Ca II index. In this work we characterize both chromospheric activity indicators, the one associated with the H and K Ca II lines and the other with Hα, for the whole range of late type stars, from F to M. We present periodic medium-resolution echelle observations covering the complete visual range, taken at the CASLEO Argentinean Observatory over 7 years. We use a total of 917 flux-calibrated spectra for 109 stars that range from F6 to M5. We statistically study these two indicators for stars of different activity levels and spectral types. We directly derive the conversion factor that translates the known S index to flux in the Ca II cores, and extend its calibration to a wider spectral range. We investigate the relation between the activity measurements in the calcium and hydrogen lines, and found that the usual correlation observed is the product of the dependence of each flux on stellar colour, and not the product of similar activity phenomena.

Abstract Copyright:

Journal keyword(s): stars: late-type - stars: activity - stars: chromospheres

VizieR on-line data: <Available at CDS (J/A+A/469/309): table2.dat>

Simbad objects: 109

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Number of rows : 109

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 HD 225213 Fl* 00 05 24.4278018131 -37 21 26.504223709 11.074 10.022 8.562 7.589 6.432 M2V 178 0
2 * 9 Cet BY* 00 22 51.7883318927 -12 12 33.972374893 7.29 7.05 6.39     G2.5V 446 0
3 HD 3405 SB* 00 36 37.9766776140 -49 07 56.373250321   7.42 6.78     G3V 65 0
4 HD 3443 SB* 00 37 20.71960 -24 46 02.1843   6.28 5.57     K1V+G 219 0
5 HD 3795 PM* 00 40 32.7956054102 -23 48 17.719009278   6.84 6.14     K0VFe-1.5CH-1.3 173 0
6 HD 4308 PM* 00 44 39.2675256910 -65 38 58.282490370 7.31 7.193 6.552     G6VFe-0.9 210 1
7 HD 4967 PM* 00 51 34.0201514770 -22 54 36.241572330 11.446 10.256 8.954 8.157 7.467 K5V 83 1
8 HD 5869 * 00 59 44.4222373569 -31 20 10.272073740   8.96 7.50     K4V 13 0
9 HD 9562 PM* 01 33 42.8353548073 -07 01 31.236482634 6.61 6.40 5.76     G1V 233 0
10 * tau Cet PM* 01 44 04.0834226 -15 56 14.926552 4.43 4.22 3.50 2.88 2.41 G8V 1066 1
11 V* EZ Cet BY* 01 49 23.3505045594 -10 42 13.019336799 7.49 7.386 6.754 6.392 6.04 G3V 145 0
12 HD 12759 ** 02 03 55.25101 -45 24 46.4628   9.04 8.73 7.91   G5V 52 0
13 HD 13445 PM* 02 10 25.9190575041 -50 49 25.467227759   6.94 6.17     K1.5V 407 2
14 HD 16673 SB* 02 40 12.4221262303 -09 27 10.336039665   6.294 5.790     F8VFe-0.4 214 0
15 * iot Hor PM* 02 42 33.4664838826 -50 48 01.056222150   5.97 5.40     F8V 333 1
16 HD 17576 Ro* 02 48 07.9301049457 -36 58 53.705130422   8.45 7.90 8.80 7.114 G1V 42 0
17 HD 17925 RS* 02 52 32.1281853696 -12 46 10.970649463 7.48 6.91 6.05 5.34 4.89 K1V 460 0
18 HD 19034 PM* 03 03 38.9588060909 -05 39 58.670862990 8.89 8.76 8.09     G5V 106 0
19 HD 19467 PM* 03 07 18.5750358835 -13 45 42.419198459   7.65 7.00 7.79 8.82 G3V 116 0
20 * 94 Cet PM* 03 12 46.4369076602 -01 11 45.949836281   5.631 5.070     F8.5V 399 1
21 * zet01 Ret PM* 03 17 46.1632605674 -62 34 31.154247481 6.24 6.18 5.54 5.00 4.66 G2.5VHdel1 265 0
22 HD 20619 PM* 03 19 01.8944014526 -02 50 35.492892644 7.82 7.697 7.039 6.691 6.343 G1.5V 160 0
23 * eps Eri BY* 03 32 55.8449634 -09 27 29.731165 5.19 4.61 3.73 3.00 2.54 K2V 1659 1
24 * del Eri RS* 03 43 14.9008787 -09 45 48.208444 5.13 4.46 3.54 2.82 2.32 K0+IV 535 0
25 HD 25069 RG* 03 58 52.3938998575 -05 28 11.810156197   6.848 5.833     K0/1III 61 0
26 * omi02 Eri Fl* 04 15 16.3197260 -07 39 10.338087 5.69 5.25 4.43 3.74 3.29 K0V 732 0
27 * eps Ret PM* 04 16 29.0292136 -59 18 07.761375 6.59 5.52 4.44 3.62 3.08 K2III 209 1
28 HD 28246 PM* 04 25 19.1197902282 -44 09 39.224831350   6.811 6.383     F5.5V 39 0
29 * 58 Eri BY* 04 47 36.2917607568 -16 56 04.041927355   6.14 5.50     G2.5IV-V 379 0
30 HD 32147 PM* 05 00 48.9991346145 -05 45 13.220341956 8.27 7.27 6.21 5.36 4.87 K3+V 406 1
31 V* AF Lep RS* 05 27 04.7631691589 -11 54 03.466187467   6.832 6.295     F8V(n)k: 201 0
32 HD 36435 PM* 05 27 39.3523551876 -60 24 57.584559812 8.068 7.75 6.983 6.573 6.191 G5V 104 0
33 HD 36395 PM* 05 31 27.3958475290 -03 40 38.021551815 10.626 9.443 7.968 6.996 5.913 M1.5Ve 416 0
34 V* UY Pic RS* 05 36 56.8530716709 -47 57 52.884166166   8.77 7.676   6.699 K0V 104 0
35 V* AK Lep BY* 05 44 26.5368916746 -22 25 18.614358408   7.09 6.15     K3 155 0
36 * gam Lep PM* 05 44 27.7908940 -22 26 54.180763 4.08 4.07 3.60 3.15 2.89 F6V 389 0
37 HD 38858 PM* 05 48 34.9401453172 -04 05 40.719529406 6.71 6.61 5.97     G2V 243 1
38 V* SZ Pic RS* 05 53 27.3641552405 -43 33 31.319472519   8.66 7.906   6.974 G8V 58 0
39 HD 41824 RS* 06 04 46.68146 -48 27 29.8706       7.57   G5V 90 0
40 HD 42581 Fl* 06 10 34.6152510171 -21 51 52.658021185 10.801 9.607 8.125 7.164 6.121 M1V 383 0
41 HD 43587 SB* 06 17 16.1298959119 +05 05 59.915616770 6.400 6.290   5.3   G0V 207 0
42 HD 45270 PM* 06 22 30.9412022189 -60 13 07.143258224 7.186 7.11 6.508   5.87 G1V 95 0
43 HD 45067 PM* 06 25 16.5464141963 -00 56 45.178168018   6.43 5.90     F9V 172 0
44 HD 48189 BY* 06 38 00.3760790738 -61 32 00.101786310   6.747 6.182   5.46 G1/2V 121 0
45 HD 52265 PM* 07 00 18.0357152121 -05 22 01.778490073   6.845 6.282     G0V 276 1
46 V* V361 Pup WU* 07 07 53.0493639490 -34 50 00.231199007   8.94 8.029   7.344 G0V 31 0
47 HD 59967 PM* 07 30 42.5117283582 -37 20 21.704201159 7.386 7.274 6.635 6.28 5.945 G3V 117 0
48 HD 75289 PM* 08 47 40.3895634256 -41 44 12.456269569 7.04 6.94 6.36     F9VFe+0.3 238 1
49 HD 82106 PM* 09 29 54.8254745613 +05 39 18.479206637 9.071 8.223 7.197 6.626 6.13 K3V 182 0
50 CD-45 5627 SB* 09 58 34.3230661116 -46 25 30.404116219 13.77 12.8 11.320 10.133 8.635 M3Ve 79 1
51 BD+20 2465 ** 10 19 36.2808024653 +19 52 12.014037746   10.82 9.52 9.19   M4Vae 1115 0
52 HD 94683 * 10 54 29.6030535559 -61 49 35.833950503 9.61 7.73 5.90     K4III 18 0
53 HD 97233 PM* 11 11 33.1730409451 -14 59 28.890143448 11.394 10.26 9.038 8.285 7.607 K5Vk: 73 1
54 HD 101581 PM* 11 41 02.4681810357 -44 24 18.682430854 9.753 8.833 7.762 7.127 6.584 K4.5Vk: 93 0
55 HD 103112 PM* 11 52 20.9007441314 +09 56 53.031446307   8.59   6.9   K0 35 0
56 HD 105115 * 12 06 12.9915378564 -38 40 32.443730759   8.29 6.88     K2/3V 10 0
57 CD-51 6859 PM* 12 37 52.2156541938 -52 00 05.321462032 13.397 12.198 10.663 9.586 8.233 M3V(e) 89 0
58 HD 114762 SB* 13 12 19.7467346230 +17 31 01.611425890 7.78         F9VgF8mF4+M6?V 499 1
59 * 70 Vir PM* 13 28 25.8081883620 +13 46 43.642951116 5.930 5.680 4.970 4.37 3.98 G4Va 662 1
60 HD 118100 Fl* 13 34 43.2063348511 -08 20 31.335294003 11.578 10.552 9.372 8.602 7.930 K5Ve 320 0
61 V* V851 Cen RS* 13 44 00.9207917868 -61 21 59.167786170   8.74 7.798   6.638 K0III 73 0
62 HD 119850 Fl* 13 45 43.7754528655 +14 53 29.473195472 10.989 9.894 8.50 7.465 6.363 M2V 282 0
63 * tau Boo ** 13 47 15.74340 +17 27 24.8552 5.02 4.98 4.49 4.09 3.85 F7IV-V 862 1
64 HD 122303 PM* 14 01 03.1881878880 -02 39 17.514921066 12.343 11.177 9.707 8.745 7.66 M0V 115 0
65 V* V759 Cen WU* 14 10 41.2606316489 -47 46 08.388230489   8.11 7.54     G0V 51 0
66 HD 125072 PM* 14 19 04.8341367419 -59 22 44.535027477   7.69 6.66     K3IV 130 0
67 V* V645 Cen Fl* 14 29 42.9451234609 -62 40 46.170818907 14.21 12.95 11.13 9.45 7.41 M5.5Ve 888 0
68 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 864 1
69 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1109 0
70 HD 130948 BY* 14 50 15.8107686483 +23 54 42.633203114   6.456 5.867     F9IV-V 251 0
71 HD 131977 BY* 14 57 28.0008928545 -21 24 55.726897561 7.89 6.83 5.72 4.74 4.19 K4V 442 0
72 HD 144253 SB* 16 05 40.4745100834 -20 27 00.102383135 9.379 8.456 7.393 6.784 6.261 K3V 73 0
73 * 18 Sco PM* 16 15 37.2703721200 -08 22 09.981989277   6.15 5.50     G2Va 470 0
74 HD 147513 PM* 16 24 01.2905970257 -39 11 34.734611237 6.17 6.02 5.376     G5V 306 1
75 HD 150433 PM* 16 41 08.2147823122 -02 51 26.202219924   7.861 7.22 6.80 8.70 G5V 90 1
76 HD 151770 Ro* 16 50 57.4777346948 -36 45 19.083405212   9.72 8.362   7.502 G3IV 26 0
77 HD 152391 BY* 16 52 58.8025427362 -00 01 35.116299669   7.40 6.64     G8.5Vk: 330 0
78 V* V2215 Oph RS* 17 16 13.3627374963 -26 32 46.133091527   7.50 6.34   4.8 K5V 275 0
79 HD 156425 * 17 18 58.2472144538 -32 57 55.798356401   9.66 7.83     K4(V) 7 0
80 HD 157881 PM* 17 25 45.2323043669 +02 06 41.123668100 10.126 8.865 7.56 6.649 5.89 K7V 304 0
81 HD 158614 SB* 17 30 23.79699 -01 03 46.4882 6.34 6.03 5.31 5.52   G9-IV-VHdel1 278 0
82 * mu. Ara PM* 17 44 08.7036342277 -51 50 02.591049123   5.85 5.15     G3IV-V 457 2
83 NAME Barnard's star BY* 17 57 48.4997994034 +04 41 36.111354228 12.497 11.24 9.511 8.298 6.741 M4V 624 2
84 HD 165185 PM* 18 06 23.7191233831 -36 01 11.229463639 6.64 6.57 5.95 5.58   G1V 144 0
85 HD 172051 ** 18 38 53.4015065712 -21 03 06.741519593   6.518 5.860     G6V 167 1
86 HD 173560 PM* 18 48 33.2792503975 -50 42 11.901911895   9.29 8.67     G3/5V 38 0
87 Ross 154 Fl* 18 49 49.3638007809 -23 50 10.453568573 13.528 12.235 10.495 9.278 7.703 M3.5Ve 316 0
88 HD 177996 PM* 19 08 50.4827467870 -42 25 41.233817269   8.74 7.88     K1V 48 0
89 HD 180617 BY* 19 16 55.2565250393 +05 10 08.038856129 11.768 10.63 9.115 8.076 6.782 M3-V 338 0
90 HD 187923 PM* 19 52 03.4385267268 +11 37 41.972536021   6.78   5.8   G0V 179 0
91 HD 188088 BY* 19 54 17.7452778997 -23 56 27.862976419   7.263 6.213 5.58 5.09 K3VaCN1 116 0
92 HD 189567 PM* 20 05 32.7652367983 -67 19 15.228862402 6.79 6.71 6.07     G2V 190 1
93 HD 197076 PM* 20 40 45.1407864181 +19 56 07.928511642 7.14 7.06 6.44 5.95 5.61 G5V 215 0
94 HD 197214 SB* 20 43 15.9971544063 -29 25 26.107915068 7.778 7.635 6.960 6.583 6.229 G6V 75 0
95 HD 202628 PM* 21 18 27.2693236958 -43 20 04.746121764   7.39 6.742     G5V 135 0
96 HD 203019 PM* 21 20 46.5927872514 -38 46 53.193486597   8.54 7.86     G7V 30 0
97 HD 202917 Ro* 21 20 49.9575453387 -53 02 03.157635940   9.32 8.67   7.882 G7V 129 0
98 HD 202996 PM* 21 20 50.8602564252 -45 48 39.153923152   8.04 7.44     G0V 27 0
99 HD 203244 PM* 21 24 40.5220958049 -68 13 40.527845137   7.70 6.97     G5V 68 0
100 * eps Ind PM* 22 03 21.6542294981 -56 47 09.537018193   5.75 4.69     K5V 462 0
101 HD 210918 PM* 22 14 38.65336 -41 22 53.9866 7.02 6.88 6.23     G2V 172 0
102 HD 212330 SB* 22 24 56.3720716646 -57 47 50.824747845 6.09 5.96 5.31 4.79 4.40 G2IV-V 126 0
103 HD 213240 PM* 22 31 00.3665162994 -49 25 59.767492660   7.41 6.80     G0/1V 144 1
104 HD 213941 PM* 22 36 07.7033175942 -54 36 38.232133858   8.25 7.59     G8VFe-1.3 83 0
105 HD 215768 PM* 22 48 06.9195176485 -37 45 23.983142573   8.08 7.49     G0VCH-0.3 30 0
106 V* TW PsA BY* 22 56 24.0532946025 -31 33 56.035064606   7.58 6.48     K4Ve 264 0
107 HD 217343 PM* 23 00 19.2872945687 -26 09 13.506860661   8.12 7.48   6.75 G5V 86 0
108 HD 219709 SB* 23 18 36.6759279554 -58 18 22.864298271   8.15 7.51     G1V 44 0
109 * 94 Aqr SB* 23 19 06.7256972451 -13 27 31.614580771   5.95 5.18     G8.5IV 177 0

    Equat.    Gal    SGal    Ecl

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2019.11.12-03:05:34

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