2007A&A...476..307L


C.D.S. - SIMBAD4 rel 1.7 - 2019.07.23CEST08:03:27

2007A&A...476..307L - Astronomy and Astrophysics, volume 476, 307-316 (2007/12-2)

Stellar evolution through the ages: period variations in galactic RRab stars as derived from the GEOS database and TAROT telescopes.

LE BORGNE J.F., PASCHKE A., VANDENBROERE J., PORETTI E., KLOTZ A., BOEER M., DAMERDJI Y., MARTIGNONI M. and ACERBI F.

Abstract (from CDS):

The theory of stellar evolution can be more closely tested if we have the opportunity to measure new quantities. Nowadays, observations of galactic RR Lyr stars are available on a time baseline exceeding 100 years. Therefore, we can exploit the possibility of investigating period changes, continuing the pioneering work started by V.P. Tsesevich in 1969. We collected the available times of maximum brightness of the galactic RR Lyr stars in the GEOS RR Lyr database. Moreover, we also started new observational projects, including surveys with automated telescopes, to characterise the O-C diagrams better. The database we built has proved to be a very powerful tool for tracing the period variations through the ages. We analyzed 123 stars showing a clear O-C pattern (constant, parabolic or erratic) by means of different least-squares methods. Clear evidence of period increases or decreases at constant rates has been found, suggesting evolutionary effects. The median values are β=+0.14d/Myr for the 27 stars showing a period increase and β=-0.20d/Myr for the 21 stars showing a period decrease. The large number of RR Lyr stars showing a period decrease (i.e., blueward evolution) is a new and intriguing result. There is an excess of RR Lyr stars showing large, positive β values. Moreover, the observed β values are slightly larger than those predicted by theoretical models.

Abstract Copyright:

Journal keyword(s): astronomical data bases: miscellaneous - stars: evolution - stars: horizontal-branch - stars: variables: RR Lyr

VizieR on-line data: <Available at CDS (J/A+A/476/307): table3.dat table4.dat table5.dat>

Simbad objects: 127

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Number of rows : 127

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* UU Cet RR* 00 04 05.1244615883 -16 59 51.544925880   10.50 14.18     A9.7 85 0
2 V* RY Psc RR* 00 11 41.1025266710 -01 44 55.331087327   11.94 11.49     F2.5 77 0
3 V* OV And RR* 00 20 44.2018890192 +40 49 40.802341409   13.16 11.60     ~ 36 0
4 V* SW And RR* 00 23 43.0897765461 +29 24 03.632673465 9.53 9.34 9.15     A7IIImF0 231 0
5 V* RX Cet RR* 00 33 38.2803060389 -15 29 14.804076872   11.7 11.85     A7 78 0
6 V* SW Psc RR* 00 41 19.4469668699 +05 20 46.703119074     14.02     ~ 19 0
7 V* RU Cet RR* 01 00 40.3036667550 -15 57 27.612630201   12.02 11.90     kA3p 51 0
8 V* XX And RR* 01 17 27.4143098635 +38 57 02.048480248   11.00 10.62     A2 112 0
9 V* RR Cet RR* 01 32 08.1732047748 +01 20 30.230643983 9.46 9.33 9.15     A9V 184 0
10 V* RZ Cet RR* 02 28 32.4384162714 -08 21 30.113285518   11.74 11.53     A3 84 0
11 V* X Ari RR* 03 08 30.8844194016 +10 26 45.221908919 9.45 9.25 8.97     F0.5 256 0
12 V* SV Eri RR* 03 11 52.1075010054 -11 21 14.066820534   10.34 9.96     A1III 103 0
13 V* SS Tau RR* 03 36 41.8663188699 +05 21 41.247041677   12.25 12.81     ~ 48 0
14 V* EZ Cep RR* 03 58 05.42350 +81 14 23.0195           ~ 27 0
15 V* AH Cam RR* 04 06 38.8988647064 +55 29 59.454904493   13.12 11.65     B9 46 0
16 V* AR Per RR* 04 17 17.1973966622 +47 24 00.635143177 10.72 10.37 9.94     A3 143 0
17 V* U Lep RR* 04 56 17.9853630613 -21 13 02.023837030   10.76 10.64     A8/F2(I) 90 0
18 V* SU Col RR* 05 07 47.0431695031 -33 51 54.478960296           A2II 22 0
19 V* V964 Ori RR* 05 07 54.5233757246 -02 08 48.758891530   10.9 13.06     ~ 24 0
20 V* BH Aur RR* 05 12 04.2692266692 +33 57 46.968562750           ~ 41 0
21 V* GI Gem RR* 07 04 40.8545894395 +13 26 12.501196547           ~ 26 0
22 V* TZ Aur RR* 07 11 35.0231898555 +40 46 37.148652580   12.44 11.55     A2 102 0
23 V* RR Gem RR* 07 21 33.5309119093 +30 52 59.465855758   12.34 11.92     A8 188 0
24 V* HK Pup RR* 07 44 46.8028726842 -13 05 56.310690579   11.70 11.41     ~ 34 0
25 V* TW Lyn RR* 07 45 06.3012925787 +43 06 41.578305229   12.52 11.69     kA6hF6 58 0
26 V* AL CMi RR* 07 48 57.0589694253 +05 38 11.216388672   11.88 11.72     A3mF3 36 0
27 V* SZ Gem RR* 07 53 43.4535766628 +19 16 23.931428969   12.13 12.00 11.89   A0 89 0
28 V* SS Cnc RR* 08 06 25.5850846353 +23 15 05.629646237   12.40 12.11     A8.5 89 0
29 V* TT Cnc RR* 08 32 55.1814752895 +13 11 28.445049233   11.62 11.10     F0 120 0
30 V* GO Hya RR* 08 54 53.4980225704 +06 26 12.766523617     12.58     ~ 26 0
31 V* AN Cnc RR* 08 58 10.3163746633 +15 48 18.760445570     13.26 13.102   ~ 30 0
32 V* TT Lyn RR* 09 03 07.7866525912 +44 35 08.122607393 9.87 9.75 9.51     A9.2 129 0
33 V* AP Cnc RR* 09 06 52.2842576117 +08 36 29.287700977     14.93     ~ 12 0
34 BPS BS 17581-0021 RR* 09 13 48.8070883268 -09 19 08.751139596   11.64 11.46 11.29   kA1hA7 76 0
35 V* RW Cnc RR* 09 19 06.0345772904 +29 03 55.721842266           A5 91 0
36 V* WW Leo RR* 09 30 26.1380354017 +07 12 21.140798052   12.20 12.84     ~ 32 0
37 V* RR Leo RR* 10 07 43.4604770180 +23 59 30.322184269 10.14 10.01 9.94     F0 163 0
38 V* V LMi RR* 10 25 25.5878401160 +28 47 07.707943334   12.23 11.98     A8 70 0
39 V* TV Leo RR* 11 11 21.9329779882 -05 53 31.443645863     12.35     A1 74 0
40 V* RX Leo RR* 11 23 58.3534574744 +26 36 54.076727349   12.26 12.05     F2 64 0
41 V* W Crt RR* 11 26 29.6452197223 -17 54 51.698551684   12.07 11.70     F4 99 0
42 V* AX Leo RR* 11 33 03.7555718216 +12 09 13.873174130   12.20 12.44     A2 43 0
43 V* SU Dra RR* 11 37 56.6071560912 +67 19 47.060820644 9.52 9.37 9.27     F2-F7 230 0
44 V* ST Leo RR* 11 38 32.6788581057 +10 33 41.739423304   11.85 11.50     F2 115 0
45 V* AA Leo RR* 11 39 14.2330001645 +10 19 38.434723933   12.77 12.37     kA5.5hF6 52 0
46 V* UU Vir RR* 12 08 35.0723483286 -00 27 24.303909321 10.13 9.99 9.90     F2 137 1
47 V* UZ CVn RR* 12 30 27.7043820720 +40 30 32.027486203   12.23 12.11     A8 48 0
48 V* S Com RR* 12 32 45.6250691009 +27 01 45.414686137   11.64 11.74     F4 107 0
49 V* SW CVn RR* 12 40 55.0178274814 +37 05 06.846299577   13.47 13.09 13.16   A0 43 0
50 V* Z CVn RR* 12 49 45.3820338361 +43 46 25.197095331   12.51 12.12     A5 77 0
51 V* AS Vir RR* 12 52 45.8687202862 -10 15 36.378519137   12.37 11.90     A6 56 0
52 V* AT Vir RR* 12 55 10.5415534768 -05 27 32.318795028   11.63 11.62     A2 86 0
53 V* RY Com RR* 13 05 07.9830909539 +23 16 42.381531439   12.89 13.01     A5 61 0
54 V* ST Com RR* 13 17 51.3447339785 +20 46 50.759599723   12.03 11.92     F5 69 0
55 V* AV Vir RR* 13 20 11.5638547339 +09 11 16.372550856   12.14 11.88     A4 72 0
56 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 2886 0
57 V* RV UMa RR* 13 33 18.0839321976 +53 59 14.600235593   10.97 10.9     F0 150 0
58 V* WY Vir RR* 13 35 16.1444838242 -06 58 22.579833093   13.72 13.46     A2 21 0
59 V* RV Oct RR* 13 46 31.7424718827 -84 24 06.384600100   11.39 10.94     ~ 70 0
60 V* RX CVn RR* 13 48 42.6242107839 +41 23 06.741745590   12.20 12.87     ~ 30 0
61 V* BB Vir RR* 13 51 40.7853273533 +06 25 51.395038713   11.3 11.69     A2 67 0
62 V* UY Boo RR* 13 58 46.3368601426 +12 57 06.457480567   11.18 10.81     A2 110 0
63 V* RU CVn RR* 13 59 33.1960875258 +31 39 04.139625102   11.46 12.24     A2 53 0
64 V* W CVn RR* 14 06 27.9805708542 +37 49 41.460062705   10.81 11.18     F2III 105 0
65 V* SW Boo RR* 14 27 34.9404910156 +36 02 44.495696419   11.85 12.72     A 61 0
66 V* ST Vir RR* 14 27 39.0736824445 -00 54 05.801138124     11.97     A 85 0
67 V* RS Boo RR* 14 33 33.2135752780 +31 45 16.614075660 9.94 9.83 9.73     A3-F5 170 0
68 V* TW Boo RR* 14 45 05.9457717039 +41 01 44.140964265   11.72 11.45     F5 98 0
69 V* BT Dra RR* 14 51 44.6428850975 +60 04 09.039813965   11.76 11.49     A8 52 0
70 V* DF Ser RR* 15 15 19.0787418843 +18 39 27.864883349   12.10 12.92     ~ 21 0
71 V* UU Boo RR* 15 17 05.2604081947 +35 06 56.520825778   12.47 12.28     kA9.5hF6 68 0
72 V* TV CrB RR* 15 22 21.4408013856 +26 52 37.668953311   12.34 12.14     A0 44 0
73 V* CS Ser RR* 15 28 36.3331527494 +03 05 23.583165854   12.31 12.68     F1 33 0
74 V* VY Ser RR* 15 31 01.9269663492 +01 41 01.763045836 10.07 9.97 9.73     A5/7Ib/II 163 0
75 V* VY Lib RR* 15 51 16.9892914153 -15 45 03.342347141   11.95 12.10     F2 50 0
76 V* AN Ser RR* 15 53 31.0534276964 +12 57 40.113021480   11.32 10.93     F0 113 0
77 V* AR Her RR* 16 00 32.2326086303 +46 55 25.747518105   11.74 11.40     A9.5 118 0
78 V* EE Her RR* 16 12 42.6094799467 +17 59 14.845663446   13.38 12.90 13.53   A2 14 0
79 V* VX Her RR* 16 30 40.8026759148 +18 22 00.571479735   10.74 11.31     A4-F4 137 0
80 V* RW Dra RR* 16 35 31.6039215643 +57 50 23.169223443   11.87 11.48     A5 143 0
81 V* VZ Her RR* 17 13 04.0032143250 +35 58 43.027089446   12.27 11.89 11.79   kA0.5hA9.5/kF1hF7 104 0
82 V* V394 Her RR* 17 22 38.7198890472 +17 53 04.694710731     13.16     ~ 21 0
83 V* ST Oph RR* 17 33 59.3723807775 -01 04 51.066915644   12.52 12.55     kA3hF0.5/kF0hF6.5 72 0
84 V* TW Her RR* 17 54 31.2004377712 +30 24 37.679750698   11.54 11.26     F6 124 1
85 V* V531 Oph RR* 17 54 40.9025982489 +06 10 33.493670098           ~ 8 0
86 V* V524 Her RR* 17 57 04.8975445100 +32 33 34.891540122     16.05     ~ 11 0
87 V* V2033 Oph RR* 17 57 37.8181257382 +04 51 16.515087435           ~ 8 0
88 V* V1095 Oph RR* 18 11 29.2858930376 +05 48 10.507333447           ~ 9 0
89 V* IO Lyr RR* 18 22 37.9954032715 +32 57 32.602042906   11.90 13.96     F3.5 62 0
90 V* KX Lyr RR* 18 33 15.2206215564 +40 10 22.786154598           F0 47 0
91 V* AQ Lyr RR* 18 34 51.0388992472 +26 35 41.746544834           ~ 22 0
92 V* LX Lyr RR* 18 40 23.3138487644 +41 02 22.760958130   11.80 13.56     F2.5 22 0
93 V* CN Lyr RR* 18 41 15.9455510880 +28 43 21.180262324   11.93 11.38     F5 74 0
94 V* RZ Lyr RR* 18 43 37.8850489266 +32 47 53.952220477   11.78 11.57     A2 107 0
95 HIP 92221 * 18 47 40.3308319878 +35 59 34.030048847   11.85 11.34     K0V 62 0
96 V* EZ Lyr RR* 18 47 41.1916103626 +35 59 26.565257531   12.03 11.58 11.93   kA9hF6.5 67 0
97 V* BD Her RR* 18 50 32.1914976981 +16 31 50.940386484   12.53       kF4hF6 24 0
98 V* CX Lyr RR* 18 51 17.2810318944 +28 47 47.545975531           F4 30 0
99 V* BK Dra RR* 19 18 20.6704612731 +66 24 47.962563063   11.44 10.99     A8 64 0
100 V* RR Lyr RR* 19 25 27.9123232234 +42 47 03.690634101   7.36   7.6   A8-F7 870 0
101 V* BN Vul RR* 19 27 56.0611781164 +24 20 50.469413784   11.62 11.13     kA8hF4 87 0
102 V* XZ Cyg RR* 19 32 29.3054833102 +56 23 17.494421260   9.94 9.68     A5-F7 240 0
103 V* V759 Cyg RR* 20 00 26.8627321071 +48 59 37.640191080     13.50     ~ 12 0
104 V* V341 Aql RR* 20 32 31.5583800810 +00 35 07.048561824   11.0 10.89 10.8   A9.5 102 0
105 V* FK Vul RR* 20 52 31.0044014972 +22 26 11.727558837   12.96 12.30     ~ 22 0
106 V* BV Del RR* 20 53 09.9566863228 +16 08 49.256872230           ~ 14 0
107 V* UY Cyg RR* 20 56 28.3031078272 +30 25 40.325903355   11.37 11.1     G 81 0
108 V* RV Cap RR* 21 01 28.8699467368 -15 13 46.093069929   11.11 10.97     A8 86 0
109 V* CP Aqr RR* 21 10 12.8486433405 -01 43 16.146168219   12.19 11.70     F0 52 0
110 V* DM Cyg RR* 21 21 11.5417750255 +32 11 28.706822821   11.83 11.63     F2.5 101 0
111 V* AO Peg RR* 21 27 03.4805447226 +18 35 57.656850468     12.88     F0 47 0
112 V* SX Aqr RR* 21 36 08.4465939805 +03 13 50.017353516   12.19 11.83     A2 78 0
113 V* CG Peg RR* 21 41 16.7875479069 +24 46 24.469443232   11.43 11.13     F1 79 0
114 V* AV Peg RR* 21 52 02.7946161616 +22 34 29.376544849 10.26 10.07 9.87     F0 149 0
115 V* V684 Cyg RR* 21 59 45.9610654608 +47 16 03.744604429           ~ 7 0
116 V* TZ Aqr RR* 22 01 55.5124623703 -05 36 02.528810005   12.33 11.58     F0 54 0
117 V* VV Peg RR* 22 13 03.8847610403 +18 27 04.358599430   11.88 11.54     F1.5 88 0
118 V* YZ Aqr RR* 22 14 30.5844301005 -10 55 46.321072452 12.939 12.6 12.77     ~ 34 0
119 V* BN Aqr RR* 22 27 48.7671350410 -07 29 01.731249320   12.988 12.96     F3 24 0
120 V* BF Peg RR* 22 45 53.0779834228 +24 08 36.726558171     12.87     ~ 21 0
121 V* BH Peg RR* 22 53 01.0369767270 +15 47 16.608265661   10.88 10.36     F2 106 0
122 V* GV And RR* 23 13 12.5458778921 +36 54 04.360263105   13.0 14.04     ~ 15 0
123 V* DE And RR* 23 17 26.1425862227 +48 33 06.156358765   13.40       ~ 10 0
124 V* DN Aqr RR* 23 19 17.2014545555 -24 12 58.822205537   11.713 11.318     F6.2 66 0
125 V* DZ Peg RR* 23 20 07.0352986693 +16 04 06.984642995   12.04 11.73     A8 36 0
126 V* BR Aqr RR* 23 38 32.8906660939 -09 19 07.471368615   11.38 11.31     F1 71 0
127 V* AT And RR* 23 42 30.8403486597 +43 00 51.687778650   11.14 10.60     F2.5 77 0

    Equat.    Gal    SGal    Ecl

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2019.07.23-08:03:27

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