2017AJ....154..124C

Query : 2017AJ....154..124C

2017AJ....154..124C - Astron. J., 154, 124-124 (2017/September-0)

The solar neighborhood. XLI. A study of the wide main sequence for M dwarfs-long-term photometric variability.

CLEMENTS T.D., HENRY T.J., HOSEY A.D., JAO W.-C., SILVERSTEIN M.L., WINTERS J.G., DIETERICH S.B. and RIEDEL A.R.

Abstract (from CDS):

We report findings from a long-term photometric variability study of M dwarfs carried out at the SMARTS 0.9 m telescope at the Cerro Tololo Inter-American Observatory. As part of a multi-faceted effort to investigate the range of luminosities of M dwarfs of a given color on the Hertzsprung-Russell Diagram, 76 M dwarfs have been observed for 3-17 years in the Johnson-Kron-Cousins V band. We find that stars elevated above the center of the main sequence distribution tend to have higher levels of variability, likely caused by magnetic activity, than their fainter counterparts below the center. This study provides insight into how the long-term magnetic activity of these stars may be affecting their sizes, luminosities, and thus positions on the H-R Diagram.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): stars: activity - stars: low-mass - stars: low-mass

VizieR on-line data: <Available at CDS (J/AJ/154/124): table1.dat>

Simbad objects: 85

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Number of rows : 85
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 1RXS J001723.4-664507 PM* 00 17 23.5412251800 -66 45 12.332320668   14.014 12.494 11.943 10.00 M3.0Ve 52 0
2 G 266-89 PM* 00 19 37.0172174833 -28 09 45.869919414       13.35 11.39 M2.5V 19 0
3 GJ 2006 A PM* 00 27 50.2331765568 -32 33 06.306392340   14.33 12.95 11.79 10.29 M3.5Ve 50 0
4 GJ 2006 ** 00 27 50.3 -32 33 15           M2: 6 0
5 GJ 2006 B PM* 00 27 50.3535388992 -32 33 24.130761048   14.66 13.25 12.04 10.48 M3.5Ve 42 0
6 G 70-28 PM* 01 00 56.3701217971 -04 26 56.558397872   15.06 13.33     M4.0V 46 0
7 V* BX Cet BY* 02 36 15.2668724487 +06 52 17.915599626   13.28   11.405   M3.5V 219 1
8 L 174-28 PM* 02 37 52.7884468536 -58 45 11.063919312 15.187 14.025 12.459 11.286 9.805 M3V 30 0
9 LP 993-115 PM* 02 45 10.7254912443 -43 44 32.035786637   13.95 12.34 12.135   M4 32 0
10 LP 993-116 ** 02 45 14.3221 -43 44 10.076   14.34 12.65 12.42   M5 36 0
11 NAME BD-17 588BC ** 03 01 51.076872 -16 35 31.06608   12.30 10.59 11.06   M2.5V 65 0
12 LP 771-77 PM* 03 04 04.4935605088 -20 22 42.886733409   14.43 12.888 12.527   M3.5V 38 0
13 Wolf 1057 LM* 03 42 29.4197307870 +12 31 33.525352939   14.46 12.841 12.466   d/sdM1 44 0
14 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
15 G 160-28 PM* 03 50 44.2893983103 -06 05 41.628583585   14.48 12.843 12.498   M3V 80 0
16 Wolf 227 SB* 03 52 41.7518444000 +17 01 04.169729361   15.4   13.463   M5V 86 0
17 * omi02 Eri C PM* 04 15 21.5359980886 -07 39 20.694578096   12.85 11.17     M4.5V 249 0
18 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
19 LP 776-25 PM* 04 52 24.4148135160 -16 49 21.926289432   12.76 11.639 11.237 9.1 M3.3V 79 0
20 LP 776-46 PM* 05 03 20.0844829328 -17 22 24.721336910 14.612 13.371 11.735 10.603 9.192 M3V 136 0
21 BD-21 1074A Er* 05 06 49.9162124448 -21 35 09.128916564   11.86 10.41 9.40 9.07 M2 91 0
22 Ross 41 PM* 05 28 00.1514481321 +09 38 38.155965013 15.341 14.082 12.443 11.272 9.788 M3.5V 140 0
23 LP 892-51 PM* 05 31 04.3282726744 -30 11 44.712057743   14.749 13.100 12.735 10.44 M3.5V 28 0
24 Ross 47 BY* 05 42 09.2676872099 +12 29 21.604835564 14.264 13.130 11.509 10.298 8.709 M4V 304 0
25 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
26 G 99-49 PM* 06 00 03.5042217306 +02 42 23.592579736   12.97 11.31 10.92 8.43 M3.5Ve 170 0
27 V* AP Col PM* 06 04 52.1486600471 -34 33 35.774443549     12.96 11.49 9.60 M5 89 0
28 L 380-8 PM* 06 10 52.8758697095 -43 24 17.657678151     12.23 11.93   M3.5V 48 0
29 L 32-9 PM* 06 33 43.2774403031 -75 37 47.956289488   11.87 10.484 10.170   M2V 71 0
30 L 32-8 PM* 06 33 46.7652016936 -75 37 29.903734451   12.88 11.419 11.106   M3V 59 0
31 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 477 0
32 L 240-16 PM* 07 36 12.0234706473 -51 55 21.213261497   13.932 12.45 12.15 9.89 M3.5V 31 0
33 L 34-26 LM* 07 49 12.6783092712 -76 42 06.715308276   12.98 11.276 10.19 8.746 M3Ve 63 0
34 SCR J0757-7114 PM* 07 57 32.5347677232 -71 14 53.837972916   13.926 12.394 12.124 9.77 M3.5V 20 0
35 Ross 619 PM* 08 11 57.5691729379 +08 46 22.952885566   14.60 12.834 12.527   M4.5V 227 0
36 L 387-102 ** 08 27 11.8331742160 -44 59 21.124684133   13.9 11.85     M3.5V 30 0
37 L 35-12 PM* 09 17 05.3238123228 -77 49 23.383480825   14.74 13.10 11.8 10.1 M4.5V 63 0
38 CD-40 5404 ** 09 39 46.3687964591 -41 04 03.204421513 13.395 12.215 10.694 9.617 8.231 M3V 132 0
39 L 100-115 PM* 09 42 46.3429551119 -68 53 06.008938214   14.51 12.78 11.35 9.61 M4.0V 64 0
40 L 750-42 LM* 09 43 46.1634765195 -17 47 06.290765826   14.8 13.167 12.693   sdM3 45 0
41 L 750-52 PM* 09 44 47.3482075476 -18 12 48.969096059   14.19 12.455 12.103 9.67 M3.5Ve 84 0
42 Wolf 358 BY* 10 50 52.0312380389 +06 48 29.259617410 14.532 13.319 11.675 10.459 8.889 M4V 298 0
43 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
44 LP 491-51 SB* 11 03 21.2586297000 +13 37 57.025080588   14.15   12.635   M3.0V 49 0
45 Ross 1002 PM* 11 23 57.2993816904 -18 21 48.754040540   14.677 13.112 12.729 10.53 M3V 39 0
46 CD-26 8623B TT* 11 32 41.1733260768 -26 52 09.107765976   16.70 15.22 13.68 11.76 M5.5 84 0
47 CD-26 8623 TT* 11 32 41.2658824800 -26 51 55.961893800   13.69 12.23 11.14 9.637 M3Ve 118 0
48 CD-51 5974 PM* 11 43 19.8200648771 -51 50 25.930594759   11.89 10.360 10.005   M0V 62 0
49 LP 734-32 PM* 12 10 05.6012378997 -15 04 16.961252810   13.64 12.083 11.912 9.35 dM3.5 87 0
50 RX J1214.1-2345 PM* 12 14 08.6778269784 -23 45 16.911619524   15.680 13.959 13.624 10.78 M4.0Ve 24 0
51 G 13-22 PM* 12 14 16.5489621254 +00 37 26.362449419   15.40   13.309   M4.5Ve 98 0
52 V* GL Vir PM* 12 18 59.3997287457 +11 07 33.773236317   15.68 13.90 13.55   M4.5Ve 191 0
53 L 326-21 PM* 12 23 01.4329702935 -46 37 08.434261807   15.24 13.62 13.273   M4V 31 0
54 L 399-68 PM* 12 40 46.2893984278 -43 33 58.991739064 15.365 13.969 12.239 11.075 9.619 M3V 80 0
55 Wolf 437 PM* 12 47 56.6245693190 +09 45 05.035666747 14.088 12.958 11.395 10.235 8.707 M3.5V 213 0
56 L 472-66 PM* 13 09 20.4139835171 -40 09 27.062520221   14.46 12.86 12.580 10.21 M3.5V 28 0
57 L 473-1 PM* 13 20 03.8568153547 -35 24 43.916434117   14.476 13.0 12.72   M3V 27 1
58 Ross 848 PM* 14 20 07.3703549007 -09 37 13.390011937   14.47 12.87   10.25 M3.5V 57 0
59 G 124-27 PM* 14 21 15.1249203620 -01 07 19.809788605   14.834 12.95 13.02   dM4.0 50 0
60 NAME Proxima Centauri PM* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1483 0
61 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 717 2
62 G 137-78 PM* 16 02 50.9446538131 +20 35 21.036273556   14.19 12.56 11.4   M4V 95 0
63 L 626-41 PM* 16 14 21.9364190530 -28 30 36.647690298   14.47 12.907 12.663 10.29 M3.5V 31 0
64 BD-12 4523 BY* 16 30 18.0583947383 -12 39 45.321217732 12.829 11.638 10.072 8.917 7.421 M3V 365 0
65 Wolf 629 PM* 16 55 25.2222453644 -08 19 21.296969167 14.691 13.436 11.759 10.574 9.044 M3.5V 243 0
66 HD 152751 ** 16 55 28.7575690 -08 20 10.787849 11.647 10.593 9.023 7.937 6.565 M3.5Ve 547 1
67 G 19-7 PM* 16 57 05.7362228328 -04 20 56.318033870   13.92 12.25 10.99 9.432 dM4 122 0
68 L 21-3 PM* 17 29 27.3207936577 -80 08 57.301565597   13.5 12.1 11.842 9.65 M3.5V 31 0
69 HD 318327 PM* 17 46 12.7509035328 -32 06 09.138873996 13.066 11.95 10.485 9.499 8.331 M1.5 66 0
70 L 205-128 PM* 17 46 34.2330744905 -57 19 08.558449196 13.613 12.42 10.783 9.648 8.243 M3.5V 107 0
71 CD-33 13497 PM* 18 43 12.5053491932 -33 22 46.121534959       10.02   M2 19 0
72 CD-23 14742 PM* 18 49 49.3637762005 -23 50 10.447375350 13.528 12.19 10.43 10.23 7.703 M3.5Ve 421 0
73 L 491-42 ** 19 13 07.9656211577 -39 01 53.923136314   13.49 12.7 12.090 9.86 M2V 25 0
74 L 22-69 PM* 19 20 54.3761245172 -82 33 16.167893610   14.4 12.69 11.51 10.00 M3.5V 51 0
75 L 46-163 PM* 20 51 41.5809027016 -79 18 39.979853291   13.2 11.87 10.82 9.64 M2.5V 44 0
76 LP 816-60 PM* 20 52 33.0166041464 -16 58 29.003281943 14.094 13.029 11.458 10.251 8.658 M4V 135 0
77 L 570-29 PM* 21 38 43.6598724084 -33 39 55.195627699   14.19 12.57 12.260   M3.5V 33 0
78 V* V374 Peg PM* 22 01 13.1241989539 +28 18 24.907312662       11.602   M3.5Ve 259 0
79 L 499-56 PM* 22 02 29.3842983900 -37 04 51.304725337   12.8   11.420   M3.5V 69 0
80 BD-05 5715 PM* 22 09 40.3443137051 -04 38 26.650757960 13.006 11.868 10.366 9.279 7.877 M3.5V 332 1
81 L 788-34 PM* 22 23 06.9968051575 -17 36 26.333040286   15.135 13.316 12.878 10.04 M4.5Ve 120 0
82 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1106 1
83 L 167-14 PM* 22 56 24.6747996764 -60 03 49.246605390   15.53 14.010 12.6 10.81 M4.5V 43 0
84 G 273-59 LM* 23 30 13.4374314039 -20 23 27.458861538 13.686 12.582 11.108 10.835 8.599 M2Ve 91 0
85 G 267-11 PM* 23 59 51.3747102907 -34 06 42.419487634   14.1 12.2 12.495 10.07 M3V 30 0

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