2014A&A...562A..90S

Query : 2014A&A...562A..90S

2014A&A...562A..90S - Astronomy and Astrophysics, volume 562A90-90 (2014/2-1)

Bright Blazhko RRab Lyrae stars observed by ASAS and the SuperWASP surveys.

SKARKA M.

Abstract (from CDS):

Period study of 321 fundamental mode RR Lyrae type stars (RRab), which had appropriate data in ASAS and SuperWASP surveys, was performed to complement and extend the list of known Blazhko stars in galactic field with bright stars up to 12.5mag in maximum light. An individual approach was applied to each studied star. Permanent visual supervision was maintained to each procedure in data analysis (data cleaning, frequency spectra examination) to avoid missing any possible sign of the Blazhko effect. Period analysis was performed using Period04 software. We found 100 stars to be definitely modulated. In 25 cases, previously unknown modulation was revealed and 8 new candidates for Blazhko stars were identified. Their modulation needs to be confirmed. In 18 previously found Blazhko stars, no modulation was detectable. Multiple modulation was revealed for eight stars that were previously proposed to show simple modulation. In total, there were twelve stars with some peculiarity in their modulation in the sample. This brings the incidence rate of multiple/irregularly-modulated stars to 12%. The ratio of the modulation periods of five of the double-modulated stars was within the ratios of small integers. One of stars studied, IK Hya, showed a very interesting frequency spectrum, which we interpret as changing Blazhko period between 71.81 and 75.57 days and an additional 1403-day-long cycle analogous to a four-year cycle of the prototype RR Lyr. The limits of the shorter period produce a beating period that is approximately twice as big as a 1403-day period. The newly revealed Blazhko star RZ CVn seems to undergo changes in the amplitude of the modulation, as well as in the basic pulsation and Blazhko periods. We found that the incidence rate of the Blazhko RR Lyraes is at least 31%, more likely even higher. It was also found that the majority of the Blazhko variables show triplet structures in their frequency spectra and that in 89% of these cases, the peak with larger amplitude is on the right-hand side of the main pulsation component.

Abstract Copyright: ∼

Journal keyword(s): astronomical databases: miscellaneous - stars: horizontal-branch - stars: variables: RR Lyrae - stars: individual: IK Hya

VizieR on-line data: <Available at CDS (J/A+A/562/A90): stars.dat table5.dat>

CDS comments: Footnote 10 : V2178 is V2178 Cyg in SIMBAD.

Simbad objects: 138

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Number of rows : 138
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 V* RU Scl RR* 00 02 48.1070566536 -24 56 43.074744252   10.991 10.563 10.24 10.069 F0/2V 106 0
2 V* RY Psc RR* 00 11 41.1029039544 -01 44 55.329956556   11.94 11.49     kA8hF6 91 0
3 V* OV And RR* 00 20 44.2020942360 +40 49 40.804586004   13.16 11.60     ~ 36 0
4 V* SW And RR* 00 23 43.0896315888 +29 24 03.626531352 9.53 9.34 9.15     A7IIImF0 270 0
5 V* RX Cet RR* 00 33 38.2801924320 -15 29 14.802914472   11.7 11.85     A7 111 0
6 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
7 V* RU Cet RR* 01 00 40.3033586784 -15 57 27.611709156   12.02 11.90     kA3p 78 0
8 V* DR And RR* 01 05 10.7138848320 +34 13 06.289699800   13.66 12.42     ~ 71 1
9 V* AE Scl RR* 01 07 25.8328968288 -32 18 35.164338444   12.86 12.44     sd?F0 45 1
10 V* RW Hyi RR* 01 31 12.2720196312 -78 29 08.123184168     12.777   12.107 ~ 18 0
11 V* VX Scl RR* 01 35 23.6616795216 -35 07 42.603497976   12.22 12.01     A2 57 0
12 V* U Tri RR* 01 55 31.4208592392 +33 46 07.896338976   12.03 12.72     kA6hF2 71 0
13 V* SS For RR* 02 07 51.9781810872 -26 51 57.716828856   10.45 10.20     kF5hF8 119 0
14 V* RV Cet RR* 02 15 14.9042875944 -10 48 00.718115472   11.30 10.85     kA0hF0 107 0
15 V* RZ Cet RR* 02 28 32.4383325288 -08 21 30.111811236   11.74 11.53     kF0.5hF2.3 109 0
16 V* TU Per RR* 03 09 04.8097725216 +53 11 36.235519620     12.77     ~ 54 0
17 V* RX For RR* 03 11 13.2184720032 -26 28 58.688531040   12.08 11.95     kA9hF6 54 0
18 ASAS J032438-2334.7 RR* 03 24 38.4415026816 -23 34 42.547915668   13.064 12.688 12.526   ~ 19 0
19 V* X Ret RR* 03 25 20.0924162976 -65 03 18.610091388   11.79 12.0     kA5hA9 47 0
20 V* SS Tau RR* 03 36 41.8663202256 +05 21 41.248476972   12.25 12.81     F5 64 0
21 V* LR Eri RR* 04 00 10.7633810184 -19 49 37.135363116   12.7 12.53 12.43   ~ 18 0
22 V* AH Cam RR* 04 06 38.8989990696 +55 29 59.455617432   13.12 11.65     kF2hF3 56 0
23 V* XY Eri RR* 04 11 16.8146120592 -13 50 54.088520352     13.00     ~ 35 0
24 V* AR Per RR* 04 17 17.1976834800 +47 24 00.635621400 10.72 10.37 9.94     kF2hF7.5 182 0
25 V* BR Tau RR* 04 34 42.9167037168 +21 46 21.654477552     12.45     kA2hA3mA6 30 0
26 CD-38 1780 RR* 04 53 14.4111477168 -37 49 15.924408168 13.00 12.17 12.44     A 43 0
27 V* SU Col RR* 05 07 47.0431810032 -33 51 54.478724940           A2 37 0
28 V* RY Col RR* 05 15 07.7818581648 -41 37 41.674798776   10.59 10.45     A7 98 0
29 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
30 V* AO Lep RR* 05 24 14.6401215480 -14 06 03.127515300   12.59 11.69     ~ 18 0
31 V* BB Lep RR* 05 42 30.1739580096 -16 22 54.572589192   12.39 11.78     ~ 17 0
32 V* VW Dor RR* 06 07 45.7163792160 -66 58 38.869098636   12.43 11.79     A5III 64 0
33 V* RX Col RR* 06 13 14.7399958536 -37 15 00.566702568           ~ 58 0
34 V* ST Pic RR* 06 14 01.1689052952 -61 28 23.527325064   9.963 9.696 9.821 9.301 F5V 55 0
35 OGLE GD-RRLYR-109 RR* 06 23 26.1787059834 +00 05 46.424454019     11.96   11.608 ~ 12 0
36 V* RR Gem RR* 07 21 33.5312487888 +30 52 59.459320164   12.34 11.92     kA2hA7.5 217 0
37 V* SS Cnc RR* 08 06 25.5852208464 +23 15 05.630616828   12.40 12.11     kA3.5hA8.5 109 0
38 V* DD Hya RR* 08 12 31.8117937656 +02 50 05.008030692           ~ 64 0
39 V* UZ UMa RR* 08 18 53.9127454200 +73 05 47.926302000     14.44     A5 35 0
40 V* TT Cnc RR* 08 32 55.1813237448 +13 11 28.444029000   11.62 11.10     kA8.5hF7 143 0
41 V* SV Vol RR* 08 48 32.6463494424 -71 39 14.758352928   12.00       ~ 34 0
42 V* DZ Oct RR* 08 54 48.3445604184 -83 16 57.208859220     12.27     ~ 15 0
43 V* SZ Hya RR* 09 13 48.8071464504 -09 19 08.753215872   11.64 11.46 11.29   kA1hA7 99 0
44 V* RW Cnc RR* 09 19 06.0345391848 +29 03 55.721782656           kA5.5hF8 115 0
45 V* UU Hya RR* 09 36 29.7709285920 +04 06 40.426793280   10.70 12.60     kF2hF9 61 0
46 V* BK Ant RR* 09 44 14.8174327104 -39 39 41.093177544   13.03 11.95     ~ 16 0
47 V* CD Vel RR* 09 44 38.2454185174 -45 52 37.112073733   12.93 11.86   11.403 ~ 54 0
48 V* V Sex RR* 09 56 07.7668541040 +04 51 06.710893200     12.89     ~ 19 0
49 V* WZ Hya RR* 10 13 24.1278993288 -13 08 17.397051972   10.47 10.27     kA8.5hF6 97 0
50 V* FS Vel RR* 10 46 00.3068599824 -43 59 17.066016744   12.48 12.04     kA2hA5 40 0
51 V* RV Sex RR* 10 46 41.8009659120 -08 22 32.738946132   12.16 11.91     kA6hF2.5 35 0
52 V* AF Vel RR* 10 53 02.4880101696 -49 54 22.748719968   11.00 10.69     kA2hF0 81 0
53 V* SZ Leo RR* 11 01 36.8475900960 +08 09 56.096264376   12.8 12.55 12.0   kA9hF5 64 0
54 V* V595 Cen RR* 11 22 06.1362600216 -36 35 07.972913688   12.25 11.69     ~ 20 0
55 V* AE Leo RR* 11 26 12.1904193168 +17 39 39.690109368   12.65 12.06 12.3   A0 48 0
56 V* BI Cen RR* 11 45 54.6200011728 -59 22 40.445816880   12.10 11.74   11.417 kF2hF3 61 0
57 V* X Crt RR* 11 48 56.2214628480 -10 26 28.519205856   9.99 11.62     kA7hF6 92 0
58 V* SW Cru RR* 11 59 06.3638513928 -60 18 18.522573732   12.20 12.23   11.775 F6-A9 45 0
59 V* IK Hya RR* 12 04 47.2726101288 -27 40 43.272236172   10.46 10.23     B7IIkA3mA3 70 0
60 V* V552 Hya RR* 12 12 06.1172266704 -26 12 48.204933012   12.8 12.65     ~ 9 0
61 V* UV Vir RR* 12 21 16.7293097232 +00 22 03.035413380   12.33 12.25     kF6.5hF9 87 0
62 V* V444 Cen RR* 12 29 43.6539592800 -34 22 01.864627032     12.83     F5 12 0
63 V* SV Hya RR* 12 30 30.5031966024 -26 02 51.113236488   10.82 10.54     kA2hF5 113 0
64 V* V419 Vir RR* 12 48 04.5150571656 -08 20 47.399682768     11.98     ~ 17 0
65 V* Z CVn RR* 12 49 45.3820261056 +43 46 25.194497628   12.51 12.12     kF1.5hF6.5 98 0
66 V* AS Vir RR* 12 52 45.8688674184 -10 15 36.381028212   12.37 11.90     kA9.5hF5 79 0
67 V* RY Com RR* 13 05 07.9832855424 +23 16 42.378255120   12.89 13.01     hF3 79 0
68 V* AM Vir RR* 13 23 33.3252267552 -16 39 57.886772400   11.99 12.18     ~ 72 0
69 V* RV UMa RR* 13 33 18.0838837128 +53 59 14.598026988   10.97 10.9     kA9hF7 182 0
70 V* RZ CVn RR* 13 45 03.0162939624 +32 39 16.709766660   11.98 11.60     kA5hF6 109 0
71 V* SS CVn RR* 13 48 15.9422342472 +39 54 03.011444352   12.00 11.80     kA7.5hF6 93 0
72 V* BB Vir RR* 13 51 40.7855260248 +06 25 51.394004112   11.3 11.69     kA0.5hA7 87 0
73 V* UY Boo RR* 13 58 46.3367502960 +12 57 06.457864896   11.18 10.81     kA0hA8 137 0
74 V* V559 Hya RR* 14 13 45.5013898008 -22 54 41.877700380   13.24 12.43     ~ 17 0
75 V* GS Hya RR* 14 15 39.5863876896 -25 39 57.580730496   12.50 12.61     ~ 23 0
76 V* TV Boo RR* 14 16 36.5814789480 +42 21 35.712985824   11.23 10.93     kB9.5hF1 132 0
77 V* V1344 Cen RR* 14 23 30.4019747880 -57 53 04.136059932   12.23 11.71   11.162 ~ 11 0
78 V* AF Vir RR* 14 28 09.8217426216 +06 32 43.928373408   11.84 11.83     kA0hA7 61 0
79 V* RS Boo RR* 14 33 33.2132344464 +31 45 16.614367848 9.94 9.83 9.73     kF3hF6.5 201 0
80 V* LS Boo RR* 14 38 21.7699355088 +14 24 55.062906876     13.38     ~ 14 0
81 V* TY Aps RR* 14 48 50.0092910856 -71 19 41.895022044   12.03 11.65     kA5hF0 74 0
82 V* XX Boo RR* 14 51 37.5615804744 +29 21 26.711326404   12.26 12.42     kA9hF6 29 0
83 V* MR Lib RR* 14 53 15.4360779984 -14 35 56.771004804   13.4 12.43     ~ 13 0
84 V* V339 Lup RR* 15 03 27.4312911504 -47 56 03.765791868   12.1       ~ 13 0
85 V* FU Lup RR* 15 09 23.7663966744 -43 19 37.095392532     12.47     ~ 10 0
86 V* CS Ser RR* 15 28 36.3332024952 +03 05 23.584304580   12.31 12.68     A7IV 49 0
87 V* PQ Lup RR* 15 55 53.2470078960 -40 41 43.615840632   11.6 11.54     F5 16 0
88 V* VX Aps RR* 15 59 56.2579770144 -75 13 19.882978248   12.95 12.40 12.02 11.61 F9: 30 0
89 V* BS Aps RR* 16 20 51.5043003105 -71 40 15.720490837   12.48 12.03     ~ 52 0
90 V* V413 Oph RR* 16 25 11.1042342168 -10 31 25.501414332     12.12     kF3hF6 51 0
91 V* VX Her RR* 16 30 40.8027020619 +18 22 00.573057888   10.74 11.31     kA6.5hF2.5 172 0
92 V* UV Oct RR* 16 32 25.5361202856 -83 54 10.495880892   9.80 9.44     A8/F0Ia/ab(w) 133 0
93 V* RW Dra RR* 16 35 31.6036225488 +57 50 23.167269564   11.87 11.48     kA7hF6.5 164 0
94 V* GY Her RR* 16 38 18.0426980544 +37 48 04.873793148   12.70 13.01     A1 39 0
95 V* AG Her RR* 16 40 32.8534277832 +40 37 06.095968068   13.27 12.89 13.07 12.82 A3 50 0
96 V* DL Her RR* 17 20 22.4582099664 +14 30 38.625270264     12.57     kA0hA6/7 57 0
97 ASAS J173154-1653.1 RR* 17 31 54.0530546448 -16 53 09.288743424   11.98 11.61     ~ 8 0
98 V* V784 Oph RR* 17 35 25.1886248592 +07 45 21.243852288   11.90 12.71     A1: 44 0
99 V* EL Aps RR* 17 35 41.2380962712 -76 13 15.739813884   12.28 12.25     ~ 27 0
100 V* V494 Sco RR* 17 40 48.4775333904 -31 32 31.778481840   12.02 11.62 11.39 10.830 A0 93 0
101 V* S Ara RR* 17 59 10.7331786216 -49 26 00.455959896   11.01 10.73     kA3hA7 119 0
102 V* WW CrA RR* 18 05 36.7933546800 -43 49 57.452156508   12.14 11.72   11.508 A2 34 0
103 ZTF J180930.31+324513.8 RR* 18 09 30.3245535552 +32 45 13.750688016     13.00 13.16 12.69 ~ 11 0
104 V* BH Pav RR* 18 34 40.5669399624 -65 27 03.196432836   13.02 12.72   11.74 ~ 29 0
105 CoRoT 105288363 RR* 18 39 30.8645616264 +07 26 53.518960968   16.198 15.323 15.082 14.565 ~ 22 0
106 V* V413 CrA RR* 18 47 57.6196241592 -37 44 22.531389180   11.00 10.6     kA7hF1 75 0
107 V* BD Her RR* 18 50 32.1915258696 +16 31 50.940710292   12.53       kF4hF6 31 0
108 V* V354 Lyr RR* 18 52 50.3556721536 +41 33 49.358051388     15.99 16.61   ~ 37 0
109 V* V445 Lyr RR* 18 58 25.6944987672 +41 35 49.188746868   15.3       ~ 36 0
110 ROTSE1 J190058.77+484441.5 RR* 19 00 58.7783167176 +48 44 42.311590512   11.94 11.40 11.63 11.254 F2V 41 0
111 V* XZ Dra RR* 19 09 42.6071961192 +64 51 32.137892820   10.40 10.12     kA3.5hA8 163 0
112 V* V1127 Aql RR* 19 24 00.1009965936 +01 41 48.516499608   15.997 14.991 15.188   ~ 41 1
113 V* RR Lyr RR* 19 25 27.9129605304 +42 47 03.693258204   7.36   7.6   kA3hF0 951 0
114 V* XZ Cyg RR* 19 32 29.3050827744 +56 23 17.494181700   9.94 9.68     kA1.5hA8 268 0
115 V* HH Tel RR* 19 33 20.2991228184 -45 39 49.132272024   12.52 12.13     ~ 26 0
116 V* V2178 Cyg RR* 19 40 06.9659960856 +38 58 20.350436016       14.83   ~ 30 0
117 V* V672 Aql RR* 19 45 37.6983523872 +08 01 17.057738136   12.13 12.17     ~ 15 0
118 V* FO Pav RR* 19 51 42.1233911112 -62 44 07.841704236   12.869 11.86     ~ 25 0
119 V* V4424 Sgr RR* 19 54 01.9092921360 -30 15 10.437792912   10.58 10.19     F5 29 0
120 V* V2239 Sgr RR* 20 09 09.6691779360 -41 49 31.770080760     12.61     ~ 11 0
121 V* V1645 Sgr RR* 20 20 44.4775833912 -41 07 05.783708028   11.72 11.39     ~ 40 0
122 ASAS J203420-2508.9 RR* 20 34 19.5433123248 -25 08 53.952960084   13.81 11.58 12.70 11.89 ~ 10 0
123 V* XZ Mic RR* 20 58 54.7937705448 -38 56 29.271015708   11.50 13.06     ~ 25 0
124 V* RV Cap RR* 21 01 28.8700813584 -15 13 46.090360344   11.11 10.97     kA1.5hA6.5 111 0
125 V* V Ind RR* 21 11 29.9019440989 -45 04 28.391364755 10.67 10.714 10.246     F0V 121 0
126 V* Z Mic RR* 21 16 22.7047906743 -30 17 03.065542503   11.58 11.37     kF3hF8 83 0
127 V* DM Cyg RR* 21 21 11.5417679280 +32 11 28.708593720   11.83 11.63     kF4hF7.5 127 0
128 V* RY Oct RR* 21 36 09.3510357528 -77 18 13.536240948   12.46 12.14     ~ 44 0
129 V* RS Oct RR* 21 47 16.9032860328 -87 39 06.418931724     12.34     ~ 31 0
130 V* CY Peg RR* 21 49 47.2413810672 +21 08 38.153864220   13.2 12.85 12.6   A2 20 0
131 V* RT Gru RR* 21 51 58.4380639704 -45 59 06.674726796     12.85     kA7hF6 38 0
132 V* SS Oct RR* 21 53 35.3533002696 -82 46 43.756880124           ~ 56 0
133 V* CZ Lac RR* 22 19 30.7339244592 +51 28 14.820549168   11.10 11.20     kB8.5hF0 87 0
134 V* HH Aqr RR* 22 41 31.4978350944 -06 28 38.882092368   12.754 11.86     ~ 35 0
135 V* BH Peg RR* 22 53 01.0369924800 +15 47 16.609582176   10.88 10.36     kA9.5hF6.5 133 0
136 V* DN Aqr RR* 23 19 17.2012122276 -24 12 58.821938891   11.713 11.318     kA2hF3 92 0
137 V* DM And RR* 23 32 00.7163293344 +35 11 48.902234172   12.08 11.68     ~ 32 0
138 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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