2016MNRAS.463.1844S

Query : 2016MNRAS.463.1844S

2016MNRAS.463.1844S - Mon. Not. R. Astron. Soc., 463, 1844-1864 (2016/December-1)

A path towards understanding the rotation-activity relation of M dwarfs with K2 mission, X-ray and UV data.

STELZER B., DAMASSO M., SCHOLZ A. and MATT S.P.

Abstract (from CDS):

We study the relation between stellar rotation and magnetic activity for a sample of 134 bright, nearby M dwarfs observed in the Kepler Two-Wheel (K2) mission during campaigns C0 to C4. The K2 lightcurves yield photometrically derived rotation periods for 97 stars (79 of which without previous period measurement), as well as various measures for activity related to cool spots and flares. We find a clear difference between fast and slow rotators with a dividing line at a period of ∼10d at which the activity level changes abruptly. All photometric diagnostics of activity (spot cycle amplitude, flare peak amplitude and residual variability after subtraction of spot and flare variations) display the same dichotomy, pointing to a quick transition between a high-activity mode for fast rotators and a low-activity mode for slow rotators. This unexplained behavior is reminiscent of a dynamo mode-change seen in numerical simulations that separates a dipolar from a multipolar regime. A substantial number of the fast rotators are visual binaries. A tentative explanation is accelerated disk evolution in binaries leading to higher initial rotation rates on the main-sequence and associated longer spin-down and activity lifetimes. We combine the K2 rotation periods with archival X-ray and UV data. X-ray, FUV and NUV detections are found for 26, 41, and 11 stars from our sample, respectively. Separating the fast from the slow rotators, we determine for the first time the X-ray saturation level separately for early- and for mid-M stars.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: activity - stars: flare - stars: late-type - stars: rotation - ultraviolet: stars - X-rays: stars - X-rays: stars

VizieR on-line data: <Available at CDS (J/MNRAS/463/1844): table1.dat table2.dat>

Simbad objects: 131

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Number of rows : 131
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 PM J03317+1913 PM* 03 31 42.1351615032 +19 13 34.262613696   14.123 12.817 12.261   ~ 5 0
2 G 6-21 PM* 03 37 04.5886858009 +15 22 27.529244381   14.8   12.855   ~ 12 0
3 PM J03394+1525 PM* 03 39 29.0435597880 +15 25 12.581854464     12.530 12.377   ~ 5 0
4 MCC 428 PM* 03 43 45.2472000220 +16 40 02.166682565 13.476 12.265 10.763 9.78 8.681 M0V 86 0
5 PM J03440+1318 PM* 03 44 01.0034 +13 18 34.373     12.893 12.476   ~ 4 0
6 G 6-33 PM* 03 45 54.8492502312 +14 42 51.483847536   13.35   11.522   M1.5V 23 0
7 StKM 1-406b PM* 03 46 13.9900343904 +17 09 17.540523180     12.9 12.392   M0 18 0
8 G 6-35 PM* 03 46 18.4716949976 +15 27 35.835530700   13.20   11.342   K5V 15 0
9 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3435 0
10 G 6-36 PM* 03 47 54.4098525993 +16 45 23.887864756   13.87   11.909   K5V 18 0
11 PM J03510+1413 PM* 03 51 00.7928687568 +14 13 39.898353108   15.506 13.956 13.658   M4.5V 17 0
12 HG 7-26 Er* 03 52 34.3354723392 +11 15 38.834175060   15.27   13.577   M1 27 0
13 HG 7-46 PM* 03 56 57.8629409496 +16 50 58.132726152   13.29 11.98 11.552   K4 6 0
14 StKM 1-433 Er* 03 57 33.9307190064 +24 45 10.643102280     12.617 12.175   M2 20 0
15 G 7-14 PM* 03 58 49.1047006542 +12 30 23.282095299   15.7 14.28 13.985 11.42 M4.0V 23 0
16 PM J03591+1510 PM* 03 59 06.2380345824 +15 10 49.065136212     13.261 12.940   M2.92 9 0
17 G 7-15 PM* 03 59 12.5997560376 +11 57 10.046062476   13.45 12.303 11.827   K7/M0V 14 0
18 HG 8-59 PM* 03 59 14.1879749064 +22 02 37.884757812     13.066 12.598   ~ 32 0
19 StKM 1-437 PM* 03 59 15.9597743328 +19 32 17.075446080   13.06 11.800 11.229   K4/5 6 0
20 PM J03599+2304 PM* 03 59 58.5366493656 +23 04 55.582265316     12.844 12.373   ~ 3 0
21 HG 8-8 PM* 04 02 24.4243877928 +24 41 24.421233516   14.51   12.562   M2.7 20 0
22 G 6-45 PM* 04 07 03.4296749184 +15 59 10.516373412   14.1   12.382   ~ 11 0
23 LP 474-123 PM* 04 07 43.9511940768 +14 13 24.581794152       10.350   K7V 24 0
24 LP 474-124 PM* 04 07 54.7951493088 +14 13 00.703406316   14.4   12.714   M2.5V 17 0
25 LP 357-168 ** 04 08 40.180872 +23 33 25.73820   14.40 12.86 12.35   ~ 24 0
26 PM J04107+2326 PM* 04 10 42.9298425864 +23 26 39.828418224     13.275 12.955   M2.9 8 0
27 PM J04146+1525 PM* 04 14 39.6374119824 +15 25 28.291481076     11.878 11.500   ~ 5 0
28 HD 284234 Pe* 04 15 10.6237731912 +23 06 51.892647156   11.77 10.65 10.221   G5 18 0
29 HG 7-153 ** 04 17 47.6939851704 +13 39 42.406058844   14.01 12.54 12.17   M1.5V 53 0
30 HG 7-152 Er* 04 17 50.6334114528 +18 28 30.685193400   15.45 13.954 13.676   M3.3 30 0
31 Cl* Melotte 25 VR 1 PM* 04 19 20.1644068488 +14 18 59.136854580   14.27 12.832 12.50   M1 36 0
32 HD 285709 PM* 04 20 30.9729740112 +14 49 52.155871752   12.69 10.943 10.673   K2 10 0
33 HG 8-80 PM* 04 20 47.9740363920 +15 14 09.304933920   15.43   13.88   M4.0V 33 0
34 HG 7-179 PM* 04 22 39.5610968520 +18 16 09.590065860   15.24 13.040 12.658   M2.0 49 0
35 HG 7-204 Er* 04 25 14.5630726896 +18 58 24.903707808   14.23 12.728 12.445   M1.7 43 0
36 HG 7-232 BY* 04 28 28.776432 +17 41 45.39120   13.58 12.12 11.88   M0.5Ve 64 0
37 Cl Melotte 25 OpC 04 29 47.3 +16 56 53           ~ 3074 0
38 PM J06102+2234 PM* 06 10 17.7643488096 +22 34 19.688839392   15.88 14.32 13.98   M4.0V 15 0
39 PM J06115+1924 PM* 06 11 33.4909911552 +19 24 31.573398564   13.897 12.531 12.033   ~ 3 0
40 G 105-21 PM* 06 13 09.9852888696 +17 36 08.779003920   13.9   12.569   ~ 10 0
41 LP 362-150 PM* 06 13 48.5700884976 +26 47 20.989183200   13.91   11.96   M2.1 12 0
42 G 103-29 PM* 06 18 34.8171254355 +25 03 05.744675013   16.0   13.769   M4.0V 24 0
43 PM J06202+1706 PM* 06 20 15.2262225456 +17 06 25.333526376   13.56 12.18 11.67   M1.4 7 0
44 G 104-35 PM* 06 21 36.5847309240 +16 18 36.181098396   13.10   11.20   M1.0V 25 0
45 G 104-36 PM* 06 21 43.9011524232 +16 19 22.282447512   14.16   12.17   M2.5 18 0
46 LP 362-257 PM* 06 24 37.2688878552 +26 08 35.813238936   15.4   13.303   M3.5 12 0
47 PM J06262+2349 PM* 06 26 14.5374028416 +23 49 38.561118780   13.34 11.82 11.30   M1.5Ve 18 0
48 PM J06281+1856 PM* 06 28 06.6909376176 +18 56 21.068771100   13.58 12.20 11.69   ~ 4 0
49 G 104-39 PM* 06 28 30.6758981952 +24 23 41.513231868   13.34   11.675   M1 12 1
50 PM J06291+2821 PM* 06 29 09.5055697896 +28 21 41.450517576   13.27 11.79 11.36   M0.5V 10 0
51 PM J06370+2711 PM* 06 37 05.9924217288 +27 11 37.692472488   14.30 12.96 12.75   ~ 3 0
52 LSPM J0641+2111 PM* 06 41 33.1664328888 +21 11 04.391376864   14.5   12.641   ~ 8 0
53 PM J06467+1557 PM* 06 46 45.7350333576 +15 57 42.165080568   12.57 11.05 10.57 9.082 M1.0Ve 19 0
54 PM J06489+2108 PM* 06 48 55.2211880208 +21 08 03.765806412   14.60 12.99 12.46   M2.5V 12 0
55 V* AD Leo Er* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1340 1
56 BD+01 2535 ** 11 13 10.07308 +00 14 19.8154 12.884 11.742 10.295 9.392 8.492 K6V 47 0
57 LP 612-46 PM* 11 24 28.5169813200 +01 33 56.583719100   13.68   12.00   ~ 10 0
58 BD+04 2470 PM* 11 27 38.5715083368 +03 58 35.867639892   12.06 10.61 10.27   M0.0V 49 0
59 K2-3 PM* 11 29 20.3917077216 -01 27 17.281697868   13.52 12.17 11.88   M1V 74 0
60 G 57-4 PM* 11 29 33.2851210992 +06 39 06.606447264   14.36   12.51   ~ 12 0
61 K2-18 PM* 11 30 14.5177445592 +07 35 18.255348492   15.01 13.50 13.24   dM2.5 96 0
62 G 10-29 PM* 11 31 32.8591691465 +02 13 42.981694209   14.00   12.17   M2.5V 23 0
63 Ross 909 PM* 11 32 11.9472636895 +00 37 03.696261307   13.57 12.07 11.71   K7 28 0
64 MCC 613 PM* 11 33 16.7831172456 -03 24 08.268004800   12.61 11.21 10.87   M0Vk 27 0
65 G 10-38 PM* 11 37 13.9030049943 -01 29 16.066727937   13.51 12.06 11.62   ~ 14 0
66 Ross 910 PM* 11 38 23.9355932125 +03 13 54.113606626   12.87   11.23   M0.0V 28 0
67 PM J11385+0357 PM* 11 38 33.5400345072 +03 57 54.428564664   14.23 12.70 12.36   ~ 7 0
68 PM J11427+0029 PM* 11 42 47.3181209304 +00 29 42.128900268     13.371 12.910   ~ 4 0
69 PM J11428+0029 ** 11 42 48.671952 +00 29 26.36124   14.89 13.26 12.78   ~ 6 0
70 Ross 912 PM* 11 43 44.8924162949 +02 00 43.157312776   15.37   13.200   M3 24 0
71 RX J1146.8+0609 ** 11 46 52.49280 +06 08 57.3108     13.006 12.694   ~ 9 0
72 G 10-49 Er* 11 47 40.7472267384 +00 15 20.101843571   14.94 13.34 13.35 10.506 M4V 86 0
73 Ross 128 Er* 11 47 44.3972681420 +00 48 16.400337591 14.223 12.905 11.153 9.859 8.184 dM4 420 0
74 LP 553-43 PM* 11 47 48.9726938640 +04 59 16.126356444   12.69 13.306 10.98   K7V 22 0
75 Ross 915 PM* 11 48 15.8324093870 -00 03 49.057274612   13.78 12.30 11.93   M0.5 17 0
76 G 10-52 PM* 11 48 35.4844541136 +07 41 40.592421924   15.30   13.31   M3.5V 38 0
77 V* V355 Vir SB* 11 49 25.1166562608 +05 29 45.961677240   13.39 12.28 11.87 10.744 ~ 22 0
78 StKM 1-973 Pe* 11 49 52.2788520912 +03 56 35.016309492   13.05 11.58 11.09   M0.0V 12 0
79 RX J1151.9+0731 SB* 11 51 56.8227955536 +07 31 26.527763856   13.82 12.42 12.06 10.156 M2.5Ve 29 0
80 StM 162 ** 11 52 09.81456 +03 57 23.3136   14.259 12.616 12.289   M4.0V 16 0
81 PM J11549-0206 PM* 11 54 56.9319847608 -02 06 09.194657472     13.379 13.038   M3.0V 10 0
82 LP 554-15 PM* 11 59 56.3780536464 +03 56 06.079976196   14.52   12.48   ~ 10 0
83 PM J16016-2625 PM* 16 01 39.7459530120 -26 25 15.904703136   12.12 10.76 10.396   M0 11 0
84 LP 861-12 PM* 16 02 23.5671625679 -25 05 57.428145875   14.1 13.190 12.994 10.64 M3.5V 25 0
85 PM J16098-1859 PM* 16 09 51.2743576440 -18 59 14.842081104     13.336 13.056   ~ 5 0
86 LP 861-29 PM* 16 10 21.2420445960 -24 34 16.788794196     13.213 12.842   ~ 9 0
87 L 626-41 PM* 16 14 21.9364190530 -28 30 36.647690298   14.47 12.907 12.663 10.29 M3.5 28 0
88 PM J16149-2437 * 16 14 54.8905049256 -24 37 06.366164664   12.43 11.204 10.936   M0 8 0
89 PM J16152-2715 ** 16 15 15.130464 -27 15 41.99004     11.238 10.944   M0 11 0
90 PM J16203-1707 PM* 16 20 18.4082219928 -17 07 51.719456928     13.428 13.050   ~ 5 0
91 LP 805-1 PM* 16 20 41.8607662294 -20 05 14.170352645     13.801 13.436   ~ 10 0
92 BPM 78395 PM* 16 21 29.7321132048 -16 56 01.514104836   12.41 10.75 10.370   M1V 10 0
93 PM J16227-1855 ** 16 22 47.516832 -18 55 05.17116   13.75 12.24 11.81   ~ 5 0
94 CD-24 12677 PM* 16 23 07.6432343597 -24 42 35.221708356 12.863 11.677 10.216 9.284 8.314 M2V 74 0
95 HD 147611 PM* 16 24 02.0318691936 -29 10 44.848417548   11.30 9.971 9.996 8.406 K7Ve 19 0
96 BD-21 4352 PM* 16 25 13.0062871954 -21 56 14.502554676 13.04 11.831 10.377 9.474 8.591 M0V 51 0
97 PM J16253-2710 ** 16 25 18.0213 -27 10 32.621     10.932 10.791   M0 7 0
98 PM J16259-1614 * 16 25 57.1011820080 -16 14 20.761109088     12.068 11.828   ~ 5 0
99 LP 805-10 ** 16 26 48.144144 -17 23 34.22724   16.109 14.329 14.382   M5e 29 0
100 PM J16275-1628 ** 16 27 34.484136 -16 28 54.49116   13.30 11.96     ~ 4 0
101 PM J16298-1714 PM* 16 29 53.8438720392 -17 14 50.035781760     13.213 12.960   M3V 11 0
102 PM J16333-1954 PM* 16 33 21.1134483768 -19 54 53.586212220     11.914 11.714   ~ 5 0
103 LP 862-184 PM* 16 35 24.6396975766 -27 18 54.583356343   15.0 14.20 13.980   M4V 26 0
104 BPM 78515 SB* 16 37 21.3421072896 -20 03 40.650377796   13.43 11.43 10.988   K7V 9 0
105 PM J16377-2013 PM* 16 37 43.2000808560 -20 13 33.933606096       13.595   M4 9 0
106 PM J16415-2137 PM* 16 41 33.3711231936 -21 37 32.016382320       12.866   ~ 5 0
107 LP 862-116 PM* 16 46 35.7196170840 -23 44 37.322860668     12.788 12.569   ~ 7 0
108 L 772-52 PM* 16 47 41.4242700408 -19 41 28.180369356   13.69 12.190 12.009   M2.5 16 1
109 SCR J1648-1809 PM* 16 48 48.4675596408 -18 09 19.493323200   14.28 13.966 13.804 10.90 ~ 7 0
110 BD-19 4454 * 16 52 49.1913226464 -19 59 43.429798140   12.55 10.868 10.638   K5 6 0
111 G 208-42 Er* 19 51 09.3205973189 +46 29 00.213809780   14.47   12.544   M4.0Ve 189 0
112 G 27-6 PM* 22 02 33.1283796624 -07 08 56.028097860   15.7 13.391 13.029   ~ 12 0
113 BD-12 6174 PM* 22 05 51.3032379493 -11 54 51.201361263 12.755 11.541 10.106 9.2 8.87 M0V 40 0
114 Wolf 1327 PM* 22 08 32.393808 -08 24 51.96924   14.52 12.98 12.65 10.51 M2.5 16 0
115 Wolf 1554 PM* 22 11 48.2250538008 -10 05 21.611395428     12.913 12.565   ~ 11 0
116 L 788-37 PM* 22 13 42.8631007040 -17 41 08.670606651   15.32 13.672 13.443   dM4.5 78 0
117 Wolf 1561 B PM* 22 17 18.6983381066 -08 48 19.329553621       14.26 11.2 M5V 59 0
118 Wolf 1561 ** 22 17 18.96 -08 48 12.3           M4V+M5V 17 0
119 Wolf 1561 A Er* 22 17 18.9728566600 -08 48 12.321642187       13.32 10.57 M4V 91 0
120 PM J22195-0504 PM* 22 19 32.0471705808 -05 04 34.055524704     12.802 12.494   ~ 4 0
121 BPS CS 22886-0057 PM* 22 20 24.1883834712 -07 27 34.227110628     13.346 13.245 11.066 M1.5 13 0
122 BPM 82232 PM* 22 20 56.9243894424 -06 02 36.248014212   13.3 11.812 11.398   K4V 6 0
123 StKM 1-2011 PM* 22 29 09.7084922472 -13 17 19.913354196   12.26 11.364 10.902   K7 11 0
124 G 156-14 PM* 22 31 32.3217352114 -08 59 44.608324605   15.076 13.591 13.301 11.022 ~ 15 0
125 StKM 1-2018 ** 22 33 22.6593 -09 36 53.737   13.98 12.41 12.10 10.07 M3e 45 0
126 StKM 1-2019 PM* 22 33 27.6523577400 -05 17 00.977136972   14.41 12.93 12.616   M0 7 0
127 PM J22360-1314 PM* 22 36 02.6576670696 -13 14 29.574313368   13.822 12.545 12.232   ~ 5 0
128 StKM 1-2024 PM* 22 36 27.5867258448 -16 17 30.944245704   13.14 11.716 11.293   K4 7 0
129 PM J22493-1318 Pe* 22 49 18.5426173416 -13 18 14.164043148   14.39 12.88 12.467 10.63 ~ 9 0
130 StKM 1-2054 PM* 22 52 35.3065065096 -14 36 34.107279120   12.87 11.445 11.131   K5 8 0
131 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1013 1

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