2019MNRAS.488.3274D

Query : 2019MNRAS.488.3274D

2019MNRAS.488.3274D - Mon. Not. R. Astron. Soc., 488, 3274-3297 (2019/September-3)

Multifractal detrended moving average analysis of Kepler stars with surface differential rotation traces.

DE FREITAS D.B., NEPOMUCENO M.M.F., CORDEIRO J.G., DAS CHAGAS M.L. and DE MEDEIROS J.R.

Abstract (from CDS):

A multifractal formalism is employed to analyse high-precision time-series data of Kepler stars with surface differential rotation (DR) traces. The multifractal detrended moving average (MFDMA) algorithm has been explored to characterize the multiscale behaviour of the observed time series from a sample of 662 stars selected with parameters close to those of the Sun (e.g. effective temperature, mass, effective gravity and rotation period). Among these stars, 141 have surface DR traces, whereas 521 have no detected DR signatures. In our sample, we also include the Sun in its active phase. Our results can be summarized in two points. First, our work suggests that star-spots for time series with and without DR have distinct dynamics. Secondly, the magnetic fields of active stars are apparently governed by two mechanisms with different levels of complexity for fluctuations. Throughout the course of the study, we identified an overall trend whereby the DR is distributed in two H regimes segregated by the degree of asymmetry A, where H-index denotes the global Hurst exponent that is used as a measure of long-term memory of time series. As a result, we show that the degree of asymmetry can be considered a segregation factor that distinguishes the DR behaviour when related to the effect of the rotational modulation on the time series. In summary, the multifractality signals in our sample are the result of magnetic activity control mechanisms leading to activity-related long-term persistent signatures.

Journal keyword(s): methods: data analysis - stars: rotation - stars: solar-type

VizieR on-line data: <Available at CDS (J/MNRAS/488/3274): table1.dat>

Simbad objects: 142

Full paper

View the references in ADS

Number of rows : 142

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	2MASS J18405508+4333248	*	18 40 55.0827222408	+43 33 24.849033624					~	8	0
2	2MASS J18440843+4250383	*	18 44 08.4339719592	+42 50 38.265777996					~	9	0
3	2MASS J18441556+4359247	*	18 44 15.5622765048	+43 59 24.751896288					~	13	0
4	2MASS J18460190+4218461	*	18 46 01.9096296744	+42 18 46.176714144					~	10	0
5	2MASS J18484967+4347172	*	18 48 49.6750616784	+43 47 17.167784748					~	10	0
6	2MASS J18485509+4408381	*	18 48 55.0966006176	+44 08 38.032016424					G2V	11	0
7	2MASS J18491707+4604332	Ro*	18 49 17.0733990240	+46 04 33.321294444					~	8	0
8	2MASS J18491918+4641057	Ro*	18 49 19.1878929720	+46 41 05.458311276					K0V	8	0
9	2MASS J18502959+4404409	*	18 50 29.5888023288	+44 04 40.985089212					~	12	0
10	2MASS J18503790+4648567	Ro*	18 50 37.9118518488	+46 48 56.784504636					~	8	0
11	KIC 10189540	*	18 52 05.1005234729	+47 17 22.338604401					~	1	0
12	2MASS J18522896+4529146	Ro*	18 52 28.9548776520	+45 29 14.500211820					~	7	0
13	2MASS J18533535+4315373	*	18 53 35.3612835912	+43 15 37.369837728					~	10	0
14	KIC 10387740	err	18 53 42.3696	+47 34 35.137					~	1	1
15	2MASS J18553080+4603204	Ro*	18 55 30.8053263096	+46 03 20.301601824					~	8	0
16	2MASS J18555880+4656007	Ro*	18 55 58.7977952712	+46 56 00.725767656					~	9	0
17	2MASS J18564689+4415418	*	18 56 46.8929546784	+44 15 41.967950544					~	9	0
18	KIC 10454270	err	18 56 54.9240	+47 38 04.387					~	1	1
19	2MASS J18573995+4714119	Ro*	18 57 39.9632669760	+47 14 11.796840420					~	8	0
20	KIC 10125100	err	18 58 25.2240	+47 06 40.381					~	1	1
21	KIC 10651440	*	19 00 39.2837766208	+47 56 24.828582264					~	1	0
22	KIC 10652090	err	19 02 01.6176	+47 58 02.021					~	1	1
23	2MASS J19020321+4145168	Er*	19 02 03.2244776496	+41 45 16.793457120					~	12	0
24	2MASS J19021276+4419021	*	19 02 12.7671718104	+44 19 02.112352068					~	12	0
25	2MASS J19021400+3906023	*	19 02 14.0097571752	+39 06 02.369514204					~	10	0
26	2MASS J19024003+4509378	*	19 02 40.0429517232	+45 09 37.803702600					~	12	0
27	KIC 11548990	*	19 02 55.8606051364	+49 30 35.650751594					~	1	0
28	2MASS J19031223+5011523	*	19 03 12.23760	+50 11 52.3680					~	1	0
29	2MASS J19031259+3802569	*	19 03 12.5849305176	+38 02 56.846222772					~	9	0
30	KIC 12052640	*	19 03 33.4939776276	+50 31 59.553686391					~	1	0
31	2MASS J19040490+4526535	Ro*	19 04 04.9107015264	+45 26 53.568201228					~	9	0
32	2MASS J19044150+4334329	*	19 04 41.4985558488	+43 34 32.973173184					~	8	0
33	KIC 10196130	*	19 05 49.9471757212	+47 14 31.571770626					~	1	0
34	KIC 11446080	*	19 06 09.6144214925	+49 18 44.205699769					~	1	0
35	KIC 11955130	*	19 06 31.0844387271	+50 20 37.644895917					~	1	0
36	2MASS J19065556+4213161	*	19 06 55.5634366776	+42 13 16.085915724					~	8	0
37	2MASS J19072568+3956041	*	19 07 25.6788582696	+39 56 04.055348688					G2V	9	0
38	2MASS J19073131+4628431	Ro*	19 07 31.3219750752	+46 28 43.187789280					~	8	0
39	2MASS J19074774+4249180	Er*	19 07 47.7469971240	+42 49 17.998273812					G5V	14	0
40	2MASS J19075645+4302059	*	19 07 56.4576390096	+43 02 05.862310548					G0V	12	0
41	UCAC4 671-070159	**	19 07 57.52824	+44 01 22.8504			16.030		~	7	0
42	2MASS J19081478+3755285	*	19 08 14.7859184568	+37 55 28.469143020					~	11	0
43	2MASS J19081734+4340237	*	19 08 17.3433846432	+43 40 23.692389096					G5V	12	0
44	2MASS J19084784+4240588	*	19 08 47.8441554984	+42 40 58.831790808					~	10	0
45	KIC 12400710	err	19 09 36.6864	+51 13 20.298					~	1	1
46	KIC 11603050	*	19 09 56.4840	+49 39 46.397					~	1	0
47	2MASS J19100836+4215321	*	19 10 08.3691231144	+42 15 32.087749356					~	8	0
48	2MASS J19142855+4307149	*	19 14 28.5532266216	+43 07 14.952986940					~	8	0
49	2MASS J19143330+4447456	*	19 14 33.3010879416	+44 47 45.691657692					~	7	0
50	2MASS J19150110+4030167	*	19 15 01.1031930360	+40 30 16.909936092					~	10	0
51	2MASS J19150389+4615372	Ro*	19 15 03.8977996920	+46 15 37.314823212					~	8	0
52	KIC 10592740	*	19 15 17.0650312839	+47 48 23.599166711					~	1	0
53	2MASS J19152836+3926510	*	19 15 28.3663398888	+39 26 51.023712300					G5	10	0
54	2MASS J19160454+4033035	*	19 16 04.5509310264	+40 33 03.532576140					G8V	12	0
55	2MASS J19160909+4754092	Ro*	19 16 09.0939125712	+47 54 09.209766204					~	10	0
56	2MASS J19162069+3908534	*	19 16 20.6948753112	+39 08 53.443774464					G8V	13	0
57	2MASS J19165212+4636229	Ro*	19 16 52.1222531760	+46 36 22.996893852					~	9	0
58	2MASS J19165653+5016114	*	19 16 56.5700468883	+50 16 11.290646571					~	1	0
59	2MASS J19171828+4438335	*	19 17 18.2868418632	+44 38 33.553174812					~	10	0
60	2MASS J19172438+4801527	*	19 17 24.4127761178	+48 01 52.565243293					~	1	0
61	2MASS J19172822+4044333	*	19 17 28.2227899512	+40 44 33.361498464					~	8	0
62	2MASS J19175330+4013245	*	19 17 53.3040358776	+40 13 24.610105596					~	9	0
63	2MASS J19182140+4353355	*	19 18 21.3971165232	+43 53 35.489256324					~	10	0
64	KOI-6389	*	19 19 03.4463603736	+39 14 46.284565344					G5	13	0
65	2MASS J19190975+4130422	*	19 19 09.7638393384	+41 30 42.154195752					G5V	9	0
66	2MASS J19203029+4420120	*	19 20 30.2931435048	+44 20 12.092835300					~	10	0
67	2MASS J19203276+4826551	*	19 20 32.7539364561	+48 26 54.963500258					~	1	0
68	2MASS J19210005+4446463	*	19 21 00.0631712328	+44 46 46.323458112					~	8	0
69	KIC 10972620	*	19 21 04.9313207440	+48 26 35.950012879					~	1	0
70	UCAC4 702-064691	*	19 21 07.1751401064	+50 14 58.687391688	14.815	14.217	14.180		G5	5	0
71	2MASS J19211012+4357548	*	19 21 10.1309396976	+43 57 54.851200452					~	8	0
72	2MASS J19211933+3841582	*	19 21 19.3330493712	+38 41 58.251466320					~	9	0
73	2MASS J19214297+4432436	*	19 21 42.9776223144	+44 32 43.511644428					~	8	0
74	KIC 12256700	*	19 21 52.1426973664	+50 58 27.268488100					~	1	0
75	2MASS J19223397+4436560	*	19 22 33.9751829616	+44 36 56.024413632					~	8	0
76	2MASS J19223405+4357118	*	19 22 34.0533062160	+43 57 11.870963352					~	9	0
77	2MASS J19225619+3843028	*	19 22 56.1901790376	+38 43 02.715540672					~	10	0
78	2MASS J19231914+4047194	*	19 23 19.1502576360	+40 47 19.385031480					~	10	0
79	2MASS J19234239+4354075	*	19 23 42.3904500240	+43 54 07.485087312					~	10	0
80	2MASS J19235840+4324341	*	19 23 58.4060512464	+43 24 34.060447836					~	8	0
81	2MASS J19241643+4410595	*	19 24 16.4346294240	+44 10 59.456316936					~	10	0
82	2MASS J19241674+4432099	*	19 24 16.7469184152	+44 32 09.944711340					~	6	0
83	2MASS J19245432+4007481	*	19 24 54.3213386592	+40 07 48.066888648					~	8	0
84	KIC 11454110	*	19 24 59.8608	+49 19 12.932					~	1	0
85	2MASS J19251297+4547599	Ro*	19 25 12.9786282816	+45 47 59.921760840					~	10	0
86	2MASS J19252261+3700454	*	19 25 22.6096231656	+37 00 45.355217976					G5	8	0
87	2MASS J19254001+3643213	*	19 25 40.0142247816	+36 43 21.340822476					~	8	0
88	2MASS J19255376+4429133	*	19 25 53.7621258048	+44 29 13.288736832					~	10	0
89	2MASS J19261277+4149094	*	19 26 12.7750761528	+41 49 09.499304964					~	9	0
90	2MASS J19263667+4239431	*	19 26 36.6720964032	+42 39 43.191188532					~	11	0
91	2MASS J19265823+3842014	*	19 26 58.2308898216	+38 42 01.414272240					~	11	0
92	KIC 11455230	*	19 27 34.5501474341	+49 18 02.067919782					~	1	0
93	2MASS J19274161+4353192	*	19 27 41.6133336072	+43 53 19.219729704					G8V	12	0
94	2MASS J19280589+4431324	*	19 28 05.8999811496	+44 31 32.517748272					~	12	0
95	2MASS J19281144+3803046	*	19 28 11.4405995616	+38 03 04.594671396					~	7	0
96	2MASS J19292544+4137550	*	19 29 25.4358494280	+41 37 55.010586720					~	9	0
97	KIC 11764150	*	19 29 42.2566586519	+49 54 11.707965407					~	1	0
98	2MASS J19303690+4857067	Ro*	19 30 36.9146163144	+48 57 06.619785696					~	12	0
99	UCAC4 698-069276	*	19 31 08.7389151427	+49 24 09.022874646	15.834	14.887	14.630		~	1	0
100	2MASS J19313372+4235532	*	19 31 33.7233607728	+42 35 53.231864856					~	8	0
101	2MASS J19313857+4057393	*	19 31 38.5721190816	+40 57 39.374291484					~	11	0
102	2MASS J19315412+4221005	*	19 31 54.1202315856	+42 21 00.538864740					G5V	10	0
103	2MASS J19320688+3746296	*	19 32 06.8796309912	+37 46 29.615178756					~	9	0
104	2MASS J19321488+4555355	Ro*	19 32 14.8775644248	+45 55 35.597135316					~	8	0
105	2MASS J19322453+4233336	*	19 32 24.5298601272	+42 33 33.563466792					~	10	0
106	2MASS J19323401+4813540	Ro*	19 32 34.0059981000	+48 13 54.237232380					~	8	0
107	2MASS J19324767+4245230	*	19 32 47.6728444416	+42 45 23.014422540					~	9	0
108	2MASS J19325658+4158269	*	19 32 56.5775223504	+41 58 26.990522724					~	8	0
109	2MASS J19334488+4515232	Ro*	19 33 44.8850463888	+45 15 23.220423828					~	10	0
110	2MASS J19352634+4114536	*	19 35 26.3473486440	+41 14 53.552583420					~	9	0
111	2MASS J19355842+4757328	Ro*	19 35 58.4252863272	+47 57 32.820664968					G5V	13	0
112	2MASS J19362105+3940496	*	19 36 21.0548618592	+39 40 49.619887500					~	10	0
113	KIC 10081120	err	19 36 41.8368	+47 00 01.249					~	1	1
114	2MASS J19364496+3906207	*	19 36 44.9589768600	+39 06 20.738950236					~	9	0
115	2MASS J19370176+4523429	Ro*	19 37 01.7635036296	+45 23 43.008308700					~	10	0
116	KIC 11818770	*	19 37 12.8361552245	+50 03 49.840220581					~	1	0
117	2MASS J19371305+3806271	*	19 37 13.0567095744	+38 06 27.101488356					~	9	0
118	2MASS J19400219+4516371	Ro*	19 40 02.1938978976	+45 16 37.152509592					~	7	0
119	2MASS J19403319+4229028	*	19 40 33.1881835056	+42 29 02.876273520					~	10	0
120	2MASS J19404200+4922416	*	19 40 41.9392413444	+49 22 42.042172583					~	1	0
121	2MASS J19411596+4622428	Ro*	19 41 15.9666488208	+46 22 42.800083788					~	9	0
122	2MASS J19413768+4640429	Ro*	19 41 37.6918478448	+46 40 42.939093324					~	9	0
123	KIC 11970930	*	19 42 01.2439741931	+50 19 30.754772923					~	1	0
124	2MASS J19421213+4019270	*	19 42 12.1357569120	+40 19 27.120387792		15.44		14.50	~	10	0
125	KIC 11305180	*	19 42 34.3606076182	+49 01 24.627733249					~	1	0
126	2MASS J19424696+5023154	*	19 42 47.0074359519	+50 23 15.448760841					~	1	0
127	UCAC4 690-070700	*	19 43 03.0146844192	+47 52 35.960214216			15.577		~	2	0
128	2MASS J19431539+4555241	Ro*	19 43 15.3967762440	+45 55 24.087442476					~	8	0
129	UCAC4 694-069207	*	19 44 23.2773391128	+48 46 28.480544904	16.123	14.874	14.583		~	2	0
130	2MASS J19460055+4652388	Ro*	19 46 00.5504850912	+46 52 38.845776468					~	13	0
131	2MASS J19461636+4717349	Ro*	19 46 16.3666859952	+47 17 35.010546864					~	10	0
132	KIC 12218610	*	19 46 18.0961548097	+50 49 16.919364650					~	1	0
133	2MASS J19462988+4741183	*	19 46 29.8857194043	+47 41 18.551740787					~	1	0
134	2MASS J19464013+4650055	Ro*	19 46 40.1289209160	+46 50 05.471582388					~	12	0
135	2MASS J19465052+4917366	Ro*	19 46 50.5255107936	+49 17 36.610082016					~	10	0
136	2MASS J19472258+4719211	*	19 47 22.5778294557	+47 19 20.758135992					~	1	0
137	KIC 12023900	*	19 47 43.0569923614	+50 26 31.887262683					~	1	0
138	2MASS J19475386+4649275	Ro*	19 47 53.8659329472	+46 49 27.603375564					~	10	0
139	KIC 11097790	*	19 50 39.1930152978	+48 36 59.123747996					~	1	0
140	2MASS J19504168+4514406	Ro*	19 50 41.6839731720	+45 14 40.664868972					~	8	0
141	KIC 10748260	*	19 50 42.4601100234	+48 02 54.867083852					~	1	0
142	2MASS J19511256+4459284	*	19 51 12.5607294024	+44 59 28.514690268					~	10	0

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