1998A&A...331..581D


Query : 1998A&A...331..581D

1998A&A...331..581D - Astronomy and Astrophysics, volume 331, 581-595 (1998/3-2)

Rotation and chromospheric activity in field M dwarfs.

DELFOSSE X., FORVEILLE T., PERRIER C. and MAYOR M.

Abstract (from CDS):

We have obtained high resolution spectra for a volume-limited sample of 118 field M dwarfs. From these observations we derive projected rotational velocities and fluxes in the Hα and Hβ lines. 8 stars are double-lined spectroscopic binaries with measured or probable periods short enough for rotation to be tidally synchronized with the orbit, and another 11 are visual binaries where we cannot yet separate the lines of the two stars. Of the remaining 99 stars, 24 have rotational velocities above our detection limit of ∼2km/s, and some are quite fast rotators, including two with vsini≃30km/s and one with vsini≃50km/s. Given the small radii of M dwarfs, these moderate rotational velocities correspond to rather short maximum rotational periods, of only 7-8 hours. These three stars are good candidates for Doppler imaging. We find that rotation is strongly correlated with both spectral type and kinematic population: all stars with measurable rotation are later than M3.5, and all but one have kinematic properties typical of the young disk, or intermediate between the young disk and the the old disk. We interpret this correlation as evidence for a spin-down timescale that increases with decreasing mass. At the age of the old disk or halo, all stars earlier than M5-M6 (0.1-0.15M) have spun-down to below our detection limit, while at the age of the young disk this has only happened for stars earlier than M3.5. The one star with measurable rotation and a kinematics intermediate between old disk and population II has spectral type M6. It is probably an old star whose mass is low enough that it has retained significant rotation up to present, still consistently with longer spin-down times for lower mass stars. We observe, on the other hand, no conspicuous change in the vsini distribution or activity pattern at the mass (M∼0.35M) below which stars remain fully convective down to the main sequence. These new data are consistent with a saturated correlation between rotation and activity, similar to the one observed for younger or more massive stars: LX/Lbol and L/Lbol both correlate with vsini for vsini≲-5km/s and then saturate at respectively 10–2.5 and 10–3.5.

Abstract Copyright:

Journal keyword(s): stars: activity - stars: rotation - stars: chromospheres - stars: coronae - stars: low-mass, brown dwarfs

VizieR on-line data: <Available at CDS (J/A+A/331/581): table2 table4>

Simbad objects: 128

goto View the references in ADS

Number of rows : 128
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 G 158-27 PM* 00 06 43.1973190107 -07 32 17.019101068     13.837 13.605 10.15 M5.5V 189 0
2 V* GX And Er* 00 18 22.8849799680 +44 01 22.637951588   10.120   7.3   M2V 497 0
3 V* GQ And Er* 00 18 25.8251408611 +44 01 38.092431857   12.84 11.04 10.3   M3.5Ve 260 0
4 V* DY Psc BY* 00 24 24.6317407560 -01 58 19.954412004     19.42 17.301 15.022 M9.5V 197 1
5 * eta Cas B PM* 00 49 05.1918602391 +57 49 04.174468559   8.90 7.51 6.9   K7Ve 109 0
6 Ross 318 Er* 01 02 32.2354294685 +71 40 47.336260174   11.736   9.1   M3.0Ve 146 0
7 BD+61 195 PM* 01 02 38.8680626986 +62 20 42.175257431   11.439   8.7   M1.5V 221 0
8 LP 467-16 LM* 01 11 25.422648 +15 26 21.51204   16.19 14.43 14.07 11.03 M5.93 78 0
9 G 3-14 PM* 01 43 20.1790598651 +04 19 17.959793419 13.64 12.45 10.915 9.879 8.614 M2V 138 0
10 V* TZ Ari Er* 02 00 12.9563198327 +13 03 07.000569241 15.406 14.100 12.298 10.943 9.195 M4.5V 259 0
11 LP 469-67 LM* 02 02 16.2429995239 +10 20 13.937753422       15.711   M5.5V 50 0
12 LP 469-206 Er* 02 16 29.8513937296 +13 35 12.783947560   17.77   15.635   M5.0Ve 50 0
13 HD 16160B LM* 02 36 04.66 +06 53 14.8     16.77     M6V 28 1
14 V* BX Cet BY* 02 36 15.2668724487 +06 52 17.915599626   13.28   11.405   M3.5V 176 1
15 V* VX Ari Er* 02 44 15.5097410539 +25 31 24.114854200 13.363 12.141 10.563 9.49 8.115 dM3 203 0
16 V* CD Cet BY* 03 13 22.9175070353 +04 46 29.336548127   15.61 14.001 13.650   M4.5Ve 119 0
17 * alf Per V* 03 24 19.3700924 +49 51 40.245455 2.64 2.27 1.79     F5Ib 818 1
18 Cl Melotte 22 OpC 03 46 24 +24 06.8           ~ 3185 0
19 * omi02 Eri C Er* 04 15 21.5359980886 -07 39 20.694578096   12.85 11.17     M4.5V 203 0
20 Cl Melotte 25 OpC 04 29 47 +16 56.9           ~ 2844 0
21 G 175-34 PM* 04 31 11.5144294005 +58 58 37.463848495     10.98     M4.0Ve 131 0
22 LP 656-38 Er* 05 01 57.4261317472 -06 56 46.376281497   13.92 12.196 11.791 9.175 M4.0Ve 112 0
23 LP 476-207 ** 05 01 58.79419 +09 58 59.2855   12.93 11.53 10.33 8.708 M3.5V 109 0
24 HD 36395 PM* 05 31 27.3957852161 -03 40 38.024004501 10.626 9.443 7.968 6.996 5.913 M1.5Ve 472 0
25 Ross 47 BY* 05 42 09.2676872099 +12 29 21.604835564 14.264 13.130 11.509 10.298 8.709 M4V 248 0
26 G 99-49 Er* 06 00 03.5042217306 +02 42 23.592579736   12.97 11.31 10.92 8.43 M3.5Ve 121 0
27 G 192-13 PM* 06 01 11.0455145210 +59 35 49.884065409   13.31   10.7   M4.0Ve 79 0
28 Ross 64 PM* 06 24 41.2848700232 +23 25 58.936096814   14.82   12.691   M4V 84 0
29 Ross 614 Er* 06 29 23.3915175239 -02 48 48.803911021 13.942 12.764 11.071 9.77 8.05 M4.5V 340 0
30 Ross 614B PM* 06 29 23.52 -02 48 51.1   16 14.23     ~ 96 0
31 HD 265866 PM* 06 54 48.9580633365 +33 16 05.438282419   11.47   9.650   M3V 201 0
32 G 250-31 ** 06 57 57.118872 +62 19 19.36632   14.8   13.420   M6V+M5V 62 0
33 G 109-35 PM* 06 59 28.8164986147 +19 20 55.857870053   16.78   10.6   M5.0Ve 69 0
34 V* QY Aur SB* 07 10 01.8335758745 +38 31 46.086503300   13.26 11.52 11.12   M4.5Ve 220 0
35 G 109-55 PM* 07 16 19.7716368648 +27 08 33.099029808   12.40   10.399   M3V 57 0
36 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 375 0
37 G 89-32 ** 07 36 25.118208 +07 04 43.13928   14.99 13.24 12.78   M4.5V 57 0
38 V* YZ CMi Er* 07 44 40.1723046464 +03 33 08.875227574 13.761 12.831 11.225 9.958 8.263 M4.0Ve 826 0
39 G 112-50 PM* 07 51 54.6712965202 -00 00 12.259020776 15.86 14.95 13.26 11.9 10.17 M4.5V 48 0
40 G 111-47 PM* 07 58 12.7020660564 +41 18 13.314829358   13.67 13.912 11.698   M3.5Ve 76 0
41 Ross 619 PM* 08 11 57.5691729379 +08 46 22.952885566   14.60 12.834 12.527   M4.5Ve 183 0
42 G 113-20 PM* 08 16 07.9813123847 +01 18 09.265205331 12.824 11.63 10.091 9.071 7.851 M2.0V 114 0
43 G 51-15 Er* 08 29 49.3527921926 +26 46 33.624143059   16.87   14.736   M6.5Ve 270 0
44 V* CV Cnc SB* 08 31 37.422792 +19 23 49.28208   15.1 14.83 13.057   M4.0V 84 0
45 V* CU Cnc SB* 08 31 37.5741841080 +19 23 39.398029332   12.83 11.809 11.592   M5Ve 210 0
46 IC 2391 OpC 08 41 10 -52 59.5           ~ 766 0
47 LP 666-9 LM* 08 53 36.1604798120 -03 29 32.197505547     18.959 16.781 14.487 M9Ve 237 0
48 G 9-38 ** 08 58 15.061776 +19 45 46.96020   15.58   13.40   M7V+M7V 101 0
49 G 9-38A PM* 08 58 15.0749311179 +19 45 48.258121374     13.93     M8Ve 88 0
50 G 41-14 SB* 08 58 56.320800 +08 28 26.06808   12.62 10.98 10.56   M3.5V 90 0
51 HD 79210 SB* 09 14 22.7748624830 +52 41 11.791503353   9.388   6.8   K7V 284 0
52 HD 79211 Er* 09 14 24.6828466599 +52 41 10.902471910   7.966   6.8   M0V 267 0
53 HD 88230 Er* 10 11 22.1399492383 +49 27 15.251007087 9.23 7.94 6.61 5.36 4.56 K6VeFe-1 445 0
54 MCC 568 ** 10 12 04.6719766322 -02 41 05.170732851 13.415 12.205 10.629 9.581 8.303 M2.5V 98 0
55 V* AN Sex RS* 10 12 17.6682499584 -03 44 44.392042932 11.941 10.757 9.264 8.258 7.066 M2V 211 0
56 BD+20 2465 Er* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1225 0
57 BD+01 2447 PM* 10 28 55.5512830314 +00 50 27.598904576 12.389 11.151 9.650 8.617 7.389 dM2 281 0
58 LP 731-58 Er* 10 48 12.6142508200 -11 20 09.610693470     15.784 16.01 11.25 M6.5V 156 0
59 Wolf 358 BY* 10 50 52.0312380389 +06 48 29.259617410 14.532 13.319 11.675 10.459 8.889 M4V 244 0
60 Wolf 359 Er* 10 56 28.9208702274 +07 00 53.003285286 16.706 15.541 13.507 11.684 9.507 dM6 671 0
61 Ross 104 PM* 11 00 04.2570074282 +22 49 58.645009946 12.826 11.584 10.020 8.952 7.646 M4V 161 0
62 HD 95735 Er* 11 03 20.1948195942 +35 58 11.576182057 10.030 8.960 7.520 5.99 4.79 M2+V 670 0
63 BD+44 2051 PM* 11 05 28.5769490063 +43 31 36.386948721 11.440 10.270   7.9   M1.0Ve 298 0
64 BD+44 2051B Er* 11 05 30.8855820790 +43 31 17.885197587   16.45 14.45 13.4   M6.0V 224 0
65 V* SZ UMa Er* 11 20 04.8264516310 +65 50 47.349400374 13.24 12.16   8.4   M2V 167 0
66 G 254-29 PM* 11 47 41.3869161825 +78 41 28.176228837   12.741   10.0   M4.0Ve 158 0
67 Ross 128 Er* 11 47 44.3972681420 +00 48 16.400337591 14.223 12.905 11.153 9.859 8.184 dM4 378 0
68 G 122-49 PM* 11 50 57.7205259231 +48 22 38.561183125       12.95   M4.5Ve 96 0
69 MCC 135 LM* 11 51 07.3365505565 +35 16 19.248218463   11.30 9.802 9.420 7.64 M1.5V 162 0
70 LP 734-32 PM* 12 10 05.6012378997 -15 04 16.961252810   13.64 12.083 11.912 9.35 dM3.5 60 0
71 G 13-22 Er* 12 14 16.5489621254 +00 37 26.362449419   15.40   13.309   M4.5Ve 74 0
72 V* GL Vir Er* 12 18 59.3997287457 +11 07 33.773236317   15.68 13.90 13.55   M4.5Ve 155 0
73 Wolf 424 ** 12 33 17.361480 +09 01 15.79224 15.398 14.313 12.467 10.937 8.988 M5.5V 309 0
74 Wolf 437 PM* 12 47 56.6245693190 +09 45 05.035666747 14.088 12.958 11.395 10.235 8.707 M3.5Ve 127 0
75 G 237-78 SB* 12 49 02.75637 +66 06 36.6642   12.56   10.544   M3V 94 0
76 Wolf 461 Er* 13 00 33.5221795982 +05 41 07.996620384   15.12   13.041   M4.5Ve 122 0
77 LP 378-541 PM* 13 07 04.3142623032 +20 48 38.678095836   14.10 12.54 12.21   M2V 24 0
78 BD+11 2576 PM* 13 29 59.7858994351 +10 22 37.784532575 11.728 10.524 9.029 8.07 7.013 M1.0Ve 223 0
79 V* DG CVn Er* 13 31 46.6246175093 +29 16 36.681048898   12.90 12.02 10.77 9.15 M4Ve 108 0
80 HD 119850 Er* 13 45 43.7755597223 +14 53 29.471707437 10.989 9.894 8.50 7.465 6.363 M2V 320 0
81 G 165-61 LM* 14 17 02.770680 +31 42 46.67904   14.73 13.108 12.831   M4.5V 60 0
82 BD-11 3759 BY* 14 34 16.8116623459 -12 31 10.414495538 14.041 12.915 11.317 10.093 8.473 M3.5V 171 0
83 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 587 2
84 G 202-45 SB* 16 24 09.3137145795 +48 21 11.107573476   12.099       M3.0Ve 176 1
85 G 202-48 PM* 16 25 24.6230388531 +54 18 14.765465640   11.78 10.07 9.66   M1.5V 182 0
86 BD-12 4523 BY* 16 30 18.0583947383 -12 39 45.321217732 12.829 11.638 10.072 8.917 7.421 M3V 284 0
87 Wolf 629 PM* 16 55 25.2222453644 -08 19 21.296969167 14.691 13.436 11.759 10.574 9.044 M3.5V 205 0
88 HD 152751 SB* 16 55 28.7575690 -08 20 10.787849 11.647 10.593 9.023 7.937 6.565 M3.5Ve 503 1
89 VB 8 Er* 16 55 35.2557374336 -08 23 40.753073075   18.7 16.916 14.566 12.24 M7Ve 412 0
90 G 203-47 SB* 17 09 31.5435804441 +43 40 52.772862930   13.46 13.671 11.511   M3.5V 84 0
91 HD 155876 SB* 17 12 07.91174 +45 39 57.2157   10.250 9.523 9.3   M3V 204 0
92 HD 157881 PM* 17 25 45.2324302566 +02 06 41.123732402 10.126 8.865 7.56 6.649 5.89 K7V 318 0
93 BD+68 946 PM* 17 36 25.8993094605 +68 20 20.909627174 11.73 10.65   8.3   M3.0V 271 0
94 BD+18 3421 PM* 17 37 53.3468417549 +18 35 30.164096453 12.315 11.109 9.577 8.599 7.525 M1.5Ve 186 0
95 * mu.02 Her ** 17 46 25.1789052168 +27 43 02.136763402   11.25   9.4   M3.5V 78 0
96 NAME Barnard's star BY* 17 57 48.4984700685 +04 41 36.113879676 12.497 11.24 9.511 8.298 6.741 M4V 739 2
97 HD 165222 PM* 18 05 07.5787518746 -03 01 52.749184670 12.09 10.878 9.360 8.385 7.304 M0V 212 0
98 G 154-44 Er* 18 07 32.8377103659 -15 57 47.068393789   15.44 13.48 12.08 10.31 M4.0Ve 86 0
99 G 258-33 Er* 18 18 57.2325828283 +66 11 33.304331650   15.29   13.096   M4.5V 80 0
100 G 227-29 PM* 18 22 27.0947595389 +62 03 01.746625489   14.8   13.060   M4.0V 74 0
101 LP 229-17 LM* 18 34 36.6521805504 +40 07 26.384102544       11.104   M4V 63 0
102 G 184-19 SB* 18 41 09.7583506052 +24 47 14.429314122   14.0   11.982   M4.5V 61 0
103 G 184-19B LM* 18 41 09.7997567900 +24 47 19.610867977   16.5 14.40 14.6   M4.5Ve 48 0
104 HD 173739 PM* 18 42 46.7043860406 +59 37 49.409446059   10.782   8.1   M3V 356 1
105 G 207-16 ** 19 07 42.98736 +32 32 41.7012   12.97 11.26 10.1 8.65 M3V 71 0
106 VB 10 Er* 19 16 57.6109547886 +05 09 01.600923413     17.30     M8V 459 1
107 G 208-44 Er* 19 53 54.4821159649 +44 24 51.341564299   15.31 13.126 13.083 9.78 M5.5Ve 204 1
108 G 208-45 Er* 19 53 55.1405033909 +44 24 54.147256052   15.97 13.99 14.3 10.27 M6V 177 0
109 G 24-16 Er* 20 29 48.3179167836 +09 41 20.590506834       12.728   M4.5V 150 0
110 G 262-15 PM* 20 30 32.0453969319 +65 26 58.411357864   12.00   10.124   M3V 148 0
111 HD 199305 PM* 20 53 19.7889212813 +62 09 15.817261385   10.459   7.7   M1.0Ve 205 0
112 * 61 Cyg B Er* 21 06 55.2638444466 +38 44 31.358519864 8.63 7.40 6.03 4.86 3.55 K7V 694 1
113 Ross 775 SB* 21 29 36.8119745172 +17 38 35.865489455 13.177 11.928 10.303 9.163 7.709 M3.0Ve 126 0
114 Wolf 922 ** 21 31 18.5690289199 -09 47 26.482273373 14.901 13.670 12.006 10.708 9.038 M4.5V 152 0
115 V* V374 Peg Er* 22 01 13.1241989539 +28 18 24.907312662       11.602   M3.5Ve 196 0
116 BD-05 5715 PM* 22 09 40.3443137051 -04 38 26.650757960 13.006 11.868 10.366 9.279 7.877 M3.5V 251 1
117 HD 239960 ** 22 27 59.47299 +57 41 45.2325           M3 270 0
118 HD 239960B Er* 22 27 59.7956021455 +57 41 49.746752678           M4V 169 0
119 V* EZ Aqr Er* 22 38 33.576000 -15 17 59.75700 15.762 14.33 12.38 12.12 8.677 M5V 294 1
120 V* EV Lac Er* 22 46 49.7312610268 +44 20 02.374381562   11.85 10.26 9.89   M4.0V 847 2
121 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 922 1
122 HD 216899 PM* 22 56 34.8046530863 +16 33 12.355636588 11.323 10.143 8.638 7.657 6.542 M1.5Ve 263 0
123 BD+19 5116 ** 23 31 52.17898 +19 56 14.1505 12.737 11.749 10.165 8.982 7.446 M4+M5 434 0
124 BD+19 5116B Er* 23 31 52.5753377942 +19 56 14.005026315   14.8   12.165   M4.0Ve 192 0
125 G 157-77 PM* 23 35 10.4624266947 -02 23 20.613547105   16.60 14.69 14.447   M5.0Ve 79 0
126 Ross 248 BY* 23 41 55.0363002516 +44 10 38.818911116   14.19   11.1   M5.0V 289 0
127 G 130-4 PM* 23 43 06.3118372752 +36 32 13.137302361   14.27 12.67 11.4   M4.5V 76 0
128 V* BR Psc BY* 23 49 12.5250852078 +02 24 04.405476893 11.532 10.427 8.993 8.029 6.946 dM1 306 0

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2022.05.26-06:23:23

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