2020A&A...634L...9W

Query : 2020A&A...634L...9W

2020A&A...634L...9W - Astronomy and Astrophysics, volume 634L9-9 (2020/2-1)

Effect of metallicity on the detectability of rotational periods in solar-like stars.

WITZKE V., REINHOLD T., SHAPIRO A.I., KRIVOVA N.A. and SOLANKI S.K.

Abstract (from CDS):

The accurate determination of stellar rotation periods is important for estimating stellar ages and for understanding stellar activity and evolution. While rotation periods can be determined for about thirty thousand stars in the Kepler field, there are over one hundred thousand stars, especially with low photometric variability and irregular pattern of variations, for which rotational periods are unknown. Here we investigate the effect of metallicity on the detectability of rotation periods. This is done by synthesising light curves of hypothetical stars that are identical to our Sun with the exception of the metallicity. These light curves are then used as an input to the period determination algorithms. We find that the success rate for recovering the rotation signal has a minimum close to the solar metallicity value. This can be explained by the compensation effect of facular and spot contributions. In addition, selecting solar-like stars with near-solar effective temperature and photometric variability, and with metallicity between M/H=-0.35 and M/H=0.35 from the Kepler sample, we analyse the fraction of stars for which rotational periods have been detected as a function of metallicity. In agreement with our theoretical estimate we find a local minimum for the detection fraction close to the solar metallicity. We further report rotation periods of 87 solar-like Kepler stars for the first time.

Abstract Copyright: © V. Witzke et al. 2020

Journal keyword(s): stars: variables: general - stars: rotation - stars: fundamental parameters - stars: solar-type

VizieR on-line data: <Available at CDS (J/A+A/634/L9): tablea1.dat>

Simbad objects: 96

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Number of rows : 96
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 UCAC4 665-069351 * 18 42 24.1065865728 +42 58 07.518700020   14.929 14.029 13.884   ~ 2 0
2 UCAC4 665-069428 * 18 43 23.3893596240 +42 57 35.684618976       14.515   ~ 2 0
3 2MASS J18464369+4739463 Ro* 18 46 43.6940413896 +47 39 46.435090104           ~ 7 0
4 UCAC4 671-067902 * 18 48 31.7953207056 +44 08 55.348965384   15.077 14.261 14.128   ~ 4 0
5 TYC 3130-1735-1 * 18 49 01.9546956864 +43 59 11.978340072   11.80 11.03     G3V 10 0
6 UCAC4 681-064990 * 18 50 01.2255317568 +46 09 38.299043196   13.665 13.043 12.618   ~ 3 0
7 2MASS J18502959+4404409 * 18 50 29.5888023288 +44 04 40.985089212           ~ 12 0
8 UCAC4 667-069347 * 18 52 27.0296491680 +43 14 35.948972436     14.575 14.479   ~ 2 0
9 UCAC4 686-065063 * 18 53 40.5000783624 +47 06 25.605571212   15.042 14.233 14.117   ~ 4 0
10 UCAC4 673-069557 * 18 54 45.8126710752 +44 34 18.065429004   14.732 13.873 13.698   G5V 6 0
11 UCAC4 680-065711 * 18 55 54.3387399936 +45 51 23.950474020   15.505 14.708 14.496   ~ 3 0
12 UCAC4 679-065335 * 18 58 57.7462879560 +45 41 26.837458296   14.860 14.092 13.904   ~ 4 0
13 UCAC4 669-069116 * 18 59 23.9158337376 +43 37 25.682919564   15.612 14.884 14.771   ~ 2 0
14 2MASS J19000552+4351333 * 19 00 05.5258549560 +43 51 33.358563540           ~ 5 0
15 UCAC4 681-066118 * 19 00 36.6319805280 +46 05 21.514116840   15.953 14.942 14.785   ~ 3 0
16 UCAC4 657-068547 * 19 00 59.3898848016 +41 23 38.295264336   15.396 14.698 14.558   ~ 3 0
17 TYC 3132-331-1 * 19 01 00.9258886248 +43 14 58.766746344   11.75 11.09     G2V 4 0
18 UCAC4 644-064150 * 19 01 53.0437217328 +38 40 19.324386768       13.913   G8V 5 0
19 UCAC4 656-068828 * 19 02 03.5515835904 +41 01 06.894558156   15.714 14.940 14.768   ~ 2 0
20 UCAC4 663-072203 * 19 03 39.9065156088 +42 25 06.849802272   15.576   14.912   ~ 2 0
21 UCAC4 693-065108 * 19 04 34.2918855936 +48 34 51.990606300   15.817 15.102 15.070   ~ 2 0
22 UCAC4 692-062427 * 19 05 22.6829489736 +48 14 13.651028916   14.371 13.753 13.654   ~ 3 0
23 UCAC4 647-064845 * 19 07 04.9234407744 +39 19 16.666312872       13.245   ~ 7 0
24 UCAC4 661-071995 * 19 07 29.0825681256 +42 06 08.834871960       14.598   ~ 2 0
25 UCAC4 695-064384 * 19 07 30.4292850504 +48 50 50.154696600   15.719 14.888 14.830   ~ 3 0
26 UCAC4 669-070225 * 19 07 48.6329102256 +43 44 02.611226256   15.887 15.079 14.851   ~ 3 0
27 UCAC4 658-071080 * 19 07 49.9422175176 +41 28 00.953478336   14.360 13.692 13.496   ~ 2 0
28 UCAC4 684-065104 * 19 08 56.0138484264 +46 36 25.799055804   14.214 13.474 13.342   ~ 4 0
29 KOI-7873 * 19 09 28.8881515008 +44 11 16.696224852           ~ 11 0
30 UCAC4 685-066036 * 19 10 34.7779639440 +46 57 08.336180088   15.337 14.620 14.364   ~ 3 0
31 UCAC4 685-066069 * 19 10 50.9730708504 +46 54 32.291335980   13.855 13.163 13.022   ~ 4 0
32 UCAC4 687-066722 * 19 11 22.9099710360 +47 15 28.457134668   15.284 14.664 14.888   ~ 2 0
33 UCAC4 688-067267 Er* 19 11 28.0704459912 +47 26 47.458460868   15.512 15.027 14.871   ~ 3 0
34 UCAC4 655-070627 * 19 11 59.4052391448 +40 50 56.755380912   15.302 14.545 14.345   K0V 4 0
35 UCAC4 681-067502 * 19 12 01.9058296584 +46 07 19.060941432       14.627   ~ 3 0
36 UCAC4 691-064233 * 19 12 36.5284282800 +48 04 53.400110520   14.044 13.403 13.279   G6V 5 0
37 2MASS J19131926+4727096 Ro* 19 13 19.2645694704 +47 27 09.549526032           ~ 7 0
38 UCAC4 681-067727 * 19 13 57.9769467984 +46 03 46.677929652   14.460 13.547 13.394   G5V 3 0
39 2MASS J19144604+5127473 * 19 14 46.0542790776 +51 27 47.343118068           G5 2 0
40 UCAC4 655-071584 * 19 17 38.0249915016 +40 54 19.023761520   15.640 14.859 14.724   ~ 3 0
41 UCAC4 676-069566 * 19 18 00.6774227808 +45 01 57.186004404   15.665 14.812 14.635   ~ 2 0
42 UCAC4 701-066565 * 19 18 59.1960914760 +50 11 37.406900688   14.318 13.672 13.588   G5 5 0
43 UCAC4 669-071817 * 19 19 01.6879455048 +43 39 23.678573256   14.668 13.949 13.922   G2V 3 0
44 UCAC4 648-069186 * 19 19 24.8924466072 +39 33 43.027567416   15.802 14.884 14.773   ~ 3 0
45 2MASS J19193969+4712461 Ro* 19 19 39.6925141992 +47 12 46.033251120           ~ 6 0
46 UCAC4 657-071325 * 19 20 26.3446654512 +41 15 36.715295412   15.148 14.337 14.122   G5V 3 0
47 UCAC4 659-071921 * 19 20 26.5168634856 +41 44 09.628789956   14.196 13.584 13.461   G0.5V 5 0
48 UCAC4 654-071334 * 19 20 53.5354097520 +40 45 53.956506744   15.466 14.722 14.416   G1V 5 0
49 2MASS J19210535+4340144 * 19 21 05.3585296560 +43 40 14.474653248           G1V 5 0
50 UCAC4 676-070026 * 19 21 13.0916774808 +45 06 18.183264768   15.234 14.405 14.420   ~ 3 0
51 UCAC4 683-070013 * 19 21 28.6531037064 +46 27 07.287507828   15.203 14.370 14.257   ~ 4 0
52 UCAC4 654-071622 * 19 22 24.2673070584 +40 40 08.707372536   13.892 13.085 12.950   G6V 6 0
53 UCAC4 691-065608 * 19 23 37.1984371296 +48 08 07.226366856   13.939 13.023 12.911   G5 5 0
54 UCAC4 655-072727 * 19 23 43.6879556136 +40 48 28.245915936   15.513 14.567 14.510   ~ 3 0
55 UCAC4 653-073460 * 19 23 57.1455602496 +40 25 55.225971300   14.804 14.076 13.911   G5V 5 0
56 UCAC4 661-074998 * 19 25 02.1427260144 +42 04 21.130235976   15.143 15.236 14.098   ~ 2 0
57 UCAC4 694-066222 * 19 25 34.2522941448 +48 42 27.831598920   15.025 14.159 14.024   ~ 4 0
58 UCAC4 691-066137 * 19 27 32.1131028888 +48 07 56.572945032   13.577 12.698 12.608   G3V 5 0
59 2MASS J19284332+4401378 Ro* 19 28 43.3198013448 +44 01 37.902613224           ~ 7 0
60 UCAC4 683-071664 * 19 32 02.8220289600 +46 31 27.109540740   14.528 13.714 13.502   G5V 5 0
61 UCAC4 679-070129 * 19 33 13.7589652560 +45 38 55.169856312   15.280 14.649 14.378   ~ 2 0
62 UCAC4 668-077601 * 19 33 19.4054472072 +43 25 02.037709812   15.667 15.005 14.740   ~ 2 0
63 UCAC4 686-070128 * 19 34 08.2692064272 +47 00 03.173443560       14.804   ~ 3 0
64 2MASS J19341154+4825133 Ro* 19 34 11.5499277192 +48 25 13.232361000           G5V 11 0
65 2MASS J19343599+4619076 Ro* 19 34 35.9998917960 +46 19 07.598230392           G4V 11 0
66 UCAC4 651-073568 * 19 34 48.2686924176 +40 06 02.267660340   15.659 15.036 14.952   ~ 3 0
67 UCAC4 674-073457 * 19 34 53.2251186696 +44 44 28.638375684       14.603   ~ 3 0
68 UCAC4 684-068808 * 19 35 38.8237668912 +46 38 25.520732448   14.199 13.390 13.225   ~ 3 0
69 UCAC4 661-077552 * 19 35 51.4948064760 +42 05 27.566820060   14.566 13.794 13.507   ~ 3 0
70 UCAC4 657-074783 * 19 36 03.0073131336 +41 21 50.977549440   15.820 14.954 14.815   ~ 3 0
71 UCAC4 692-066323 * 19 36 18.4196208096 +48 23 20.297787036   14.583 13.778 13.648   G5V 5 0
72 UCAC4 680-071436 * 19 36 20.6668077288 +45 56 08.839928004   15.185 14.452 14.223   ~ 3 0
73 UCAC4 685-070122 * 19 38 49.7320233912 +46 57 06.602741208   13.357 12.521 12.311   ~ 9 0
74 UCAC4 665-078634 * 19 40 27.6020181648 +42 49 07.067537040   13.922 13.258 13.058   ~ 4 0
75 2MASS J19410974+4355286 * 19 41 09.7437285936 +43 55 28.721291124           G5 4 0
76 UCAC4 693-070266 * 19 42 20.0747685216 +48 33 58.552266096   14.232 13.375 13.224   ~ 3 0
77 UCAC4 705-067117 * 19 45 39.2018166888 +50 51 19.900595268   15.143 14.459 14.388   ~ 4 0
78 UCAC4 656-077692 * 19 45 40.2212157312 +41 09 32.008007772   13.853 13.032 12.889   G3Va 6 0
79 UCAC4 675-077101 * 19 46 27.7786269756 +44 48 27.490436659   14.654 13.788 13.585   ~ 2 0
80 UCAC4 684-071137 * 19 46 54.3099008256 +46 38 27.179734272       14.244   ~ 2 0
81 UCAC4 656-078179 Er* 19 47 11.2609261344 +41 00 37.852431120   15.275 14.463 14.366   ~ 4 0
82 UCAC4 685-071764 * 19 47 15.2763520968 +46 58 36.507071388       14.841   ~ 3 0
83 UCAC4 686-072650 * 19 47 34.1399680992 +47 10 27.523499988   13.957 13.317 13.184   ~ 3 0
84 UCAC4 688-073050 * 19 48 07.0533038424 +47 31 52.327065612   15.241 14.514 14.428   ~ 2 0
85 UCAC4 668-081139 * 19 48 36.8963278508 +43 26 29.477632563     14.288 14.126   ~ 2 0
86 UCAC4 669-077890 * 19 48 55.8497631456 +43 43 07.126009752       15.034   ~ 2 0
87 UCAC4 660-079299 * 19 49 26.2115533416 +41 56 55.980478500   15.455 14.631 14.589   ~ 3 0
88 UCAC4 652-078475 * 19 49 28.1868606696 +40 14 25.637618004   14.900 14.169 14.003   ~ 3 0
89 UCAC4 685-072258 * 19 49 32.5242479256 +46 54 15.164351280   15.712 14.988 14.964   ~ 3 0
90 2MASS J19493625+4817182 Ro* 19 49 36.2561140944 +48 17 18.229589052           ~ 7 0
91 UCAC4 670-079370 * 19 49 55.3456326192 +43 48 07.022603988   14.799 14.035 13.808   G5 3 0
92 2MASS J19500325+4628008 Ro* 19 50 03.2611199136 +46 28 00.851806632           ~ 8 0
93 2MASS J19502598+4519076 Er* 19 50 25.9877512680 +45 19 07.544602956           ~ 4 0
94 2MASS J19503916+4836117 Ro* 19 50 39.1657177992 +48 36 11.726266968           ~ 10 0
95 UCAC4 689-072327 * 19 51 22.1887611960 +47 43 13.028430972   15.062 14.384 14.364   ~ 2 0
96 UCAC4 655-082798 * 19 58 02.6018129136 +40 58 54.424060968   15.171 14.358 14.135   ~ 2 0

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