Last update: 2018.02.19 by Wojtek Pych
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The Cluster AgeS Experiment (CASE).
Variable Stars in the Field of the Globular Cluster M22

Rozyczka, M.; Thompson, I. B.; Pych, W.; Narloch, W.; Poleski, R.; Schwarzenberg-Czerny, A.

Abstract:
The field of the globular cluster M22 (NGC 6656) was monitored between 2000 and 2008 in a search for variable stars. BV light curves were obtained for 359 periodic, likely periodic, and long-term variables, 238 of which are new detections. 39 newly detected variables, and 63 previously known ones are members or likely members of the cluster, including 20 SX Phe, 10 RRab and 16 RRc type pulsators, one BL Her type pulsator, 21 contact binaries, and 9 detached or semi-detached eclipsing binaries. The most interesting among the identified objects are V112 - a bright multimode SX Phe pulsator, V125 - a β Lyr type binary on the blue horizontal branch, V129 - a blue/yellow straggler with a W UMa-like light curve, located halfway between the extreme horizontal branch and red giant branch, and V134 - an extreme horizontal branch object with P=2.33 d and a nearly sinusoidal light curve. All four of them are proper motion members of the cluster. Among nonmembers, a P=2.83 d detached eclipsing binary hosting a δ Sct type pulsator was found, and a peculiar P=0.93 d binary with ellipsoidal modulation and narrow minimum in the middle of one of the descending shoulders of the sinusoid. We also collected substantial new data for previously known variables. In particular we revise the statistics of the occurrence of the Blazhko effect in RR Lyr type variables of M22.

DOWNLOADS:
The paper (PDF) "The Cluster AgeS Experiment (CASE). Variable Stars in the Field of the Globular Cluster M22"
Rozyczka, M.; Thompson, I. B.; Pych, W.; Narloch, W.; Poleski, R.; Schwarzenberg-Czerny, A.
Acta Astronomica, vol 67, no 3, p. 203-224
Template image
in V-band
From 1-m Swope telescope.
(FITS)


Table 1: Basic properties of new variable stars in M22 field
Star RA
[deg. J2000.0]
Decl.
[deg. J2000.0]
Period
[days]
Vmax
[mag]
Δ V
[mag]
B-V
[mag]
PMa Typeb V light-curvec B light-curvec Remarksd
V102 279.15380 -23.89643 0.024444 16.51 0.03 0.45 Y SX V102.ph -
V103 279.12900 -23.88132 0.034484 16.47 0.09 0.36 Y SX V103.ph -
V104 279.09940 -23.90529 0.035295 16.93 0.18 0.21 Y SX V104.ph -
V105 279.08285 -23.92430 0.035436 16.72 0.15 0.50 Y SX V105.ph -
V106 279.05179 -23.85339 0.036600 16.58 0.04 0.50 Y SX V106.ph -
V107 279.11319 -23.92439 0.036672 16.85 0.05 0.53 Y SX V107.ph -
V108 279.07929 -24.00760 0.037069 16.89 0.04 0.51 Y SX V108.ph -
V109 279.01410 -23.89371 0.037408 16.56 0.11 0.50 Y SX V109.ph -
V110 279.05557 -23.74960 0.037422 16.50 0.12 0.46 Y SX V110.ph -
V111 279.08897 -23.91072 0.049828 16.64 0.29 0.58 Y SX V111.ph -
V112 279.10487 -23.90030 0.062316 15.73 0.38 0.69 Y SX V112.ph -
V113 279.09917 -23.91816 0.134598 15.03 0.02 0.77 Y sin V113.ph -
V114 279.14880 -24.03486 0.138045 19.30 0.18 0.83 Y sin V114.ph -
V115 279.13845 -23.99951 0.150652 19.55 0.21 1.06 Y sin V115.ph -
V116 279.14455 -23.96458 0.166970 19.74 0.13 1.16 Y susp V116.ph -
V117 279.06735 -23.93642 0.313255 15.84 0.02 0.96 Y EW? V117.ph -
V118 279.02580 -23.80545 0.280272 18.55 0.13 0.89 Y EW V118.ph - 423093
V119 279.02157 -23.88727 0.308184 19.43 0.22 0.81 Y EW V119.ph -
V120 279.09289 -23.91302 0.313017 17.42 0.09 0.80 Y EW V120.ph -
V121 279.06029 -23.86971 0.388302 19.21 0.26 1.01 Y EW V121.ph -
V122 279.12530 -23.93627 0.388626 19.25 0.56 0.90 Y EW V122.ph - 423187
V123 279.14410 -23.88288 0.508686 17.00 0.05 0.79 Y sin V123.ph -
V124 279.09911 -23.87354 0.509259 15.89 0.02 0.77 Y sin V124.ph -
V125 278.98951 -23.79977 0.542888 14.52 0.02 0.19 Y per V125.ph -
V126 279.09688 -23.89823 0.548074 14.85 0.03 0.70 Y sin V126.ph -
V127 279.23231 -23.80664 0.621828 17.32 0.05 0.60 Y EW V127.ph -
V128 279.15095 -23.92249 0.881780 14.55 0.02 1.09 Y sin V128.ph -
V129 279.08844 -23.86043 1.394800 15.80 0.05 0.52 Y EW V129.ph -
V130 279.07328 -23.95401 1.445972 16.63 0.04 0.61 Y EA/EB V130.ph -
V131 279.10074 -23.90743 1.733622 16.00 0.26 0.43 Y EA V131.ph -
V132 279.10720 -23.94846 1.842857 13.34 0.04 1.09 Y susp V132.ph -
V133 279.15541 -23.89410 2.244228 18.99 0.34 1.10 Y EA V133.ph -
V134 279.06929 -23.93284 2.330917 16.82 0.14 0.21 Y sin V134.ph - 423136
V135 279.23132 -23.92565 4.927996 18.79 0.18 0.79 Y EA V135.ph -
V136 279.07298 -23.95875 11.6962 15.59 0.06 0.92 Y SR V136.ph -
V137 279.09036 -23.89309 14.3226 16.05 0.09 1.02 Y SR V137.ph -
V138 279.10629 -23.87739 34.9127 14.91 0.05 1.00 Y SR V138.ph -
V139 279.06292 -23.91527 80.8938 11.07 0.21 1.72 Y SR V139.ph -
V140 279.06408 -23.88108 3100 18.03 0.77 0.99 Y LPV V140.ph -
U01 279.11248 -23.83042 0.032720 16.84 0.07 0.54 U SX/DS U01.ph -
U02 279.02538 -24.07802 0.045901 19.79 0.27 1.10 U susp U02.ph -
U03 279.21508 -24.09997 0.057540 17.05 0.06 0.53 U SX/DS U03.ph -
U04 279.07204 -24.03967 0.078242 18.85 0.13 0.55 U DS U04.ph -
U05 279.08330 -24.04678 0.105598 21.13 0.77 1.10 U susp U05.ph -
U06 279.10514 -23.72956 0.132783 19.12 0.15 1.04 U sin U06.ph -
U07 279.15037 -24.03497 0.193439 18.51 0.09 0.62 U sin U07.ph -
U08 279.12550 -23.80548 0.209024 19.25 0.74 0.90 U EW U08.ph -
U09 279.06031 -24.03022 0.217356 18.16 0.10 0.54 U sin U09.ph -
U10 279.06660 -23.80933 0.262657 20.08 0.50 1.27 U EW U10.ph -
U11 279.02090 -23.77777 0.266325 99.99 0.96 9.99 U EW U11.ph -
U12 279.02055 -24.04489 0.272096 20.35 0.71 1.15 U EW U12.ph - 423091
U13 279.07591 -23.78716 0.275304 20.56 0.62 1.15 U EW U13.ph -
U14 279.02927 -23.99985 0.280311 19.08 0.18 1.04 U EW U14.ph -
U15 279.00450 -23.98346 0.291586 19.95 0.30 1.09 U EW U15.ph -
U16 279.03230 -23.98932 0.295358 19.58 0.40 0.75 U EW U16.ph -
U17 278.99996 -24.04961 0.308520 19.81 0.58 1.11 U EW U17.ph - 423077
U18 279.22903 -23.88355 0.309944 20.46 0.84 1.35 U EW U18.ph - 423267
U19 279.04896 -23.97039 0.312032 19.74 0.32 0.83 U EW U19.ph -
U20 279.02492 -23.97804 0.318614 19.59 0.26 0.89 U EW U20.ph -
U21 279.17730 -23.78904 0.333550 19.39 0.27 1.17 U EW U21.ph -
U22 278.97481 -23.75615 0.342578 17.93 0.35 0.72 U EW U22.ph - 423064
U23 279.01611 -23.96734 0.346065 19.93 0.42 1.19 U EW U23.ph - 423087
U24 279.16724 -23.99742 0.350728 18.57 0.36 0.76 U EW U24.ph -
U25 278.97990 -24.04411 0.359448 19.98 0.33 0.98 U EW U25.ph -
U26 279.09788 -23.88994 0.361322 17.44 0.08 0.71 U susp U26.ph -
U27 279.17959 -23.78438 0.369382 19.77 0.22 1.16 U EW U27.ph -
U28 279.03136 -23.91799 0.373515 19.49 0.55 0.91 U EW U28.ph -
U29 279.02928 -24.06469 0.376690 19.36 0.20 1.14 U EW U29.ph -
U30 279.22245 -24.06682 0.392273 18.84 0.12 0.77 U EB/EW U30.ph -
U31 279.12441 -23.77736 0.403734 20.68 0.65 1.29 U EB/EW U31.ph -
U32 279.14519 -23.88350 0.404309 19.21 0.24 0.71 U susp U32.ph -
U33 279.10308 -23.97813 0.431350 18.20 0.09 0.75 U EW U33.ph -
U34 279.09938 -23.89831 0.457474 15.72 0.04 0.88 U susp U34.ph -
U35 279.17116 -23.92653 0.507715 18.61 0.33 1.74 U susp U35.ph -
U36 279.17199 -23.74195 0.510065 20.45 0.77 1.18 U EB U36.ph -
U37 279.08631 -23.78654 0.515478 99.99 0.29 9.99 U RR0? U37.ph -
U38 278.97554 -23.89766 0.533554 18.30 0.38 0.77 U EW U38.ph -
U39 279.06515 -23.97477 0.626613 16.52 0.20 0.72 U EA U39.ph - 423130
U40 279.19130 -23.97697 0.643335 17.46 0.27 0.78 U EW U40.ph - 423240
U41 278.99080 -23.88252 0.658775 19.73 0.40 0.96 U EW U41.ph -
U42 279.10856 -23.80418 0.673292 19.84 0.44 1.22 U EB/EA U42.ph -
U43 279.15231 -23.78548 0.729176 99.99 1.02 9.99 U EA U43.ph -
U44 278.97674 -24.06404 0.811103 18.95 0.34 1.25 U R/EA U44.ph -
U45 279.14849 -23.78494 0.817782 18.64 0.12 0.80 U EB/EW U45.ph -
U46 279.17438 -23.73824 1.008412 17.23 0.09 0.80 U EW U46.ph -
U47 279.17778 -23.83377 1.443922 19.86 0.36 1.35 U sin U47.ph -
U48 279.10088 -24.02165 1.734360 18.73 0.13 1.13 U sin U48.ph -
U49 279.10378 -24.03842 1.739649 17.07 0.08 0.56 U SR U49.ph -
U50 279.10452 -23.94817 1.922292 18.29 0.35 1.15 U EA U50.ph -
U51 279.16651 -23.87156 2.548926 19.67 0.65 0.89 U EA U51.ph -
U52 279.21130 -24.09264 3.714851 18.56 0.15 1.01 U EA U52.ph -
U53 278.98998 -23.72693 4.148438 16.70 0.61 0.78 U EA U53.ph -
U54 279.10456 -23.73511 4.343896 18.19 0.12 1.13 U SR U54.ph -
U55 279.10141 -23.80179 4.492414 18.88 0.27 1.00 U per U55.ph - ELL925309
U56 279.16653 -23.84856 4.572758 17.09 0.13 1.08 U per U56.ph -
U57 279.17314 -23.85753 5.424700 18.85 0.22 1.23 U SR U57.ph -
U58 278.99267 -23.74320 5.692013 19.50 0.24 1.12 U SR U58.ph -
U59 279.03830 -23.97011 5.852243 19.69 0.43 1.21 U SR U59.ph -
U60 279.05254 -24.04887 11.3469 99.99 2.20 9.99 U EA U60.ph -
U61 279.22293 -23.78627 13.8140 18.91 0.45 1.07 U EA U61.ph -
U62 278.99650 -23.91997 20.7522 16.76 0.11 0.84 U EA U62.ph -
U63 279.12480 -23.96774 24.2404 20.17 1.70 1.53 U susp U63.ph -
U64 279.11486 -23.85609 26.2857 99.99 0.93 9.99 U susp U64.ph -
U65 279.04256 -23.81241 48.6320 11.30 0.31 1.98 U SR U65.ph -
U66 279.05544 -23.90267 53.5624 99.99 1.47 9.99 U susp U66.ph -
U67 279.21939 -23.92043 3100 17.72 0.31 0.87 U LPV U67.ph -
U68 279.14004 -23.95207 3100 19.37 0.69 1.10 U LPV U68.ph -
U69 279.05809 -23.86654 3100 99.99 1.77 9.99 U LPV U69.ph -
N01 279.18557 -24.02859 0.023654 16.88 0.04 0.37 N SX/DS N01.ph -
N02 278.96999 -23.90245 0.029970 16.59 0.03 0.42 N SX/DS N02.ph -
N03 279.06365 -23.72465 0.038902 19.22 0.14 1.28 N DS N03.ph -
N04 279.11355 -23.79272 0.042513 16.45 0.06 0.60 N SX/DS N04.ph -
N05 279.08884 -23.74238 0.043496 18.00 0.08 0.55 N DS N05.ph -
N06 279.04656 -23.98451 0.043609 17.72 0.10 0.56 N DS N06.ph -
N07 279.14417 -23.74361 0.057616 17.77 0.07 0.64 N DS N07.ph -
N08 279.19348 -23.97871 0.073619 17.96 0.25 0.58 N DS N08.ph -
N09 279.18745 -24.05812 0.075344 17.03 0.04 0.62 N DS N09.ph -
N10 278.97078 -24.06584 0.089940 15.35 0.05 0.52 N SX/DS N10.ph -
N11 279.11653 -23.82832 0.097236 16.45 0.30 0.52 N DS N11.ph -
N12 279.14421 -24.01212 0.146750 13.71 0.07 0.61 N DS N12.ph -
N13 279.21298 -23.75301 0.174568 19.53 0.19 1.18 N sin N13.ph -
N14 279.22488 -23.96830 0.235848 20.22 0.38 1.28 N EW N14.ph - 423265
N15 279.20356 -24.03031 0.245619 16.76 0.20 0.46 N DS N15.ph -
N16 279.13497 -24.00880 0.258814 21.35 1.30 1.26 N sin N16.ph -
N17 279.18493 -23.74500 0.261312 20.25 0.66 1.44 N EW N17.ph - 423233
N18 279.07898 -23.78803 0.265967 19.92 0.26 1.08 N EW N18.ph -
N19 279.05622 -23.78096 0.267620 20.03 0.41 0.92 N EW N19.ph -
N20 279.21049 -23.86710 0.286970 19.91 0.39 1.17 N EW N20.ph -
N21 279.15254 -24.02888 0.289322 19.60 0.21 1.01 N EW N21.ph -
N22 278.98883 -24.05014 0.294708 18.05 0.15 1.06 N EW N22.ph -
N23 279.14621 -24.05517 0.306880 19.89 0.52 1.04 N EW N23.ph - 423205
N24 279.15470 -24.09876 0.307251 99.99 0.69 9.99 N EW N24.ph -
N25 279.12379 -24.05433 0.310179 17.62 0.05 0.75 N sin N25.ph -
N26 279.01932 -23.99197 0.314595 19.13 0.64 0.74 N EW N26.ph -
N27 279.09778 -23.98864 0.315233 15.71 0.07 0.62 N sin N27.ph -
N28 279.18839 -24.01652 0.319574 18.61 0.51 1.05 N EW N28.ph - 423235
N29 278.97185 -23.87269 0.336474 19.60 0.24 1.02 N EW N29.ph -
N30 279.22747 -23.98834 0.338100 19.10 0.17 0.94 N EW N30.ph -
N31 279.10452 -23.75950 0.349123 17.88 0.59 1.03 N EW N31.ph - 423170
N32 279.00056 -23.97917 0.353362 17.19 0.05 1.23 N EW N32.ph - 423078
N33 279.01346 -23.93324 0.357648 18.84 0.16 0.89 N EW N33.ph -
N34 279.13691 -23.99080 0.361614 19.11 0.71 1.03 N EW N34.ph -
N35 279.06237 -23.98110 0.363262 20.02 0.27 1.15 N EB/EW N35.ph -
N36 279.07902 -24.00868 0.364457 19.97 0.28 1.13 N EA N36.ph -
N37 279.05146 -24.06974 0.369622 16.03 0.31 0.76 N EW N37.ph -
N38 278.98901 -23.99765 0.371463 19.08 0.28 1.25 N EA N38.ph -
N39 279.04411 -24.02404 0.375437 19.49 0.57 0.90 N EW N39.ph - 423110
N40 279.18277 -23.75543 0.376072 18.92 0.36 1.00 N EW N40.ph - 423229
N41 279.06833 -24.06338 0.376954 18.81 0.52 0.96 N EW N41.ph - 423134
N42 279.06462 -24.04745 0.383449 18.01 0.53 0.92 N EW N42.ph - 423128
N43 279.08522 -24.04196 0.395561 18.22 0.19 0.99 N EW N43.ph - 423143
N44 278.99070 -23.75487 0.414372 15.91 0.19 0.87 N EW N44.ph -
N45 278.99518 -23.79539 0.415811 18.28 0.41 0.84 N EW N45.ph -
N46 279.08922 -23.81673 0.426454 18.19 0.28 0.74 N EB/EW N46.ph - 423147
N47 279.20095 -24.01542 0.433369 18.86 0.41 0.92 N EW N47.ph - 423246
N48 279.21383 -24.07368 0.441349 17.86 0.19 0.84 N EW N48.ph - 423255
N49 279.04319 -23.72483 0.443406 18.40 0.22 1.00 N EW N49.ph - 423108
N50 279.03589 -23.76490 0.451778 18.57 0.17 0.83 N EW N50.ph - 423105
N51 279.01378 -23.88850 0.452217 18.75 0.26 0.91 N EW N51.ph -
N52 279.21712 -23.82243 0.472575 15.64 0.11 0.66 N EW N52.ph - 423261
N53 278.99496 -23.88802 0.472780 16.53 0.27 0.66 N EW N53.ph -
N54 279.12299 -24.08053 0.478619 18.64 0.34 0.98 N EW N54.ph -
N55 279.02814 -23.73670 0.479428 19.24 0.24 0.68 N EW N55.ph - 423097
N56 279.13992 -23.72918 0.480708 19.56 0.79 1.21 N EA/EB N56.ph - 423198
N57 279.15633 -24.09157 0.480989 99.99 0.53 9.99 N EW N57.ph -
N58 279.03366 -24.05129 0.483018 16.98 0.05 0.51 N EW N58.ph -
N59 279.00239 -24.01963 0.505640 17.66 0.20 0.70 N EW N59.ph - 423080
N60 279.12311 -24.00221 0.509012 17.75 0.07 1.00 N EA N60.ph -
N61 279.129958 -24.060944 0.518097 18.74 0.44 0.75 N EW N61.ph - 423193
N62 279.18080 -24.07735 0.558357 15.07 0.12 0.63 N EW N62.ph - 423226
N63 279.21924 -23.74756 0.570735 20.55 0.61 1.23 N EA N63.ph -
N64 279.17178 -23.91688 0.578080 17.72 0.08 1.17 N susp N64.ph -
N65 279.21231 -24.04217 0.592321 17.68 0.44 0.72 N EB N65.ph - 423254
N66 279.08470 -23.74193 0.637661 17.30 0.16 0.65 N EW N66.ph - 423141
N67 279.15502 -23.79727 0.639349 17.69 0.22 0.74 N EB/EW N67.ph -
N68 279.04912, -24.04822 0.657786 20.46 0.45 1.39 N EA N68.ph - 423114
N69 279.05449 -23.73656 0.659021 16.48 0.03 0.46 N EW N69.ph -
N70 279.13058 -23.76303 0.666275 18.40 0.27 0.96 N EA/EB N70.ph - 423194
N71 279.07829 -23.75667 0.678028 18.34 0.12 1.09 N per N71.ph -
N72 279.10088 -23.77850 0.686970 17.15 0.37 0.80 N EW N72.ph - 423164
N73 279.14067 -23.73252 0.742125 17.06 0.12 0.75 N EA/EB N73.ph - 423200
N74 279.08420 -23.76308 0.774713 16.81 0.41 0.75 N EA N74.ph - 423140
N75 279.00601 -23.74417 0.777713 18.11 0.09 0.93 N EW N75.ph -
N76 279.13803 -23.82514 0.795907 19.01 0.24 1.32 N EW N76.ph -
N77 279.04899 -23.98680 0.816192 16.22 0.06 0.55 N EW N77.ph -
N78 278.96868 -23.96406 0.839396 19.15 0.26 1.17 N sin N78.ph -
N79 279.14070 -23.86041 0.839694 14.17 0.11 1.25 N sin N79.ph -
N80 279.18324 -24.00801 0.853309 16.24 0.03 0.86 N sin N80.ph -
N81 279.12984 -23.73479 0.862527 17.02 0.09 1.30 N sin N81.ph -
N82 279.08055 -23.83163 0.892127 15.14 0.01 0.73 N susp N82.ph -
N83 279.17665 -23.93969 0.893024 13.51 0.01 1.67 N susp N83.ph -
N84 279.03778 -23.78779 0.902784 19.24 0.17 1.33 N sin N84.ph -
N85 279.23561 -23.75745 0.909480 18.20 0.09 1.05 N sin N85.ph -
N86 279.04185 -23.96514 0.922670 13.68 0.04 1.80 N sin N86.ph -
N87 279.23363 -23.81226 0.925052 17.03 0.12 1.47 N ? N87.ph -
N88 279.19656 -23.94090 0.932938 17.84 0.06 0.64 N EW N88.ph -
N89 278.99898 -23.90512 0.940769 15.07 0.30 0.71 N EB/EW N89.ph - 423075
N90 279.22565 -23.85001 0.957055 14.98 0.05 1.79 N susp N90.ph -
N91 279.19467 -23.89002 1.056136 19.13 0.18 1.09 N EA/EB N91.ph -
N92 279.01109 -23.75283 1.144673 17.03 0.06 0.65 N per N92.ph -
N93 278.97950 -23.83260 1.203141 20.55 0.46 1.58 N per N93.ph -
N94 279.00521 -23.92414 1.246572 17.31 0.06 0.73 N EW N94.ph -
N95 279.20325 -23.81326 1.350793 20.00 0.37 0.96 N EA N95.ph - 423247
N96 279.04735 -23.78627 1.370204 17.23 0.07 1.11 N EB/EW N96.ph -
N97 279.02685 -23.84691 1.554369 19.14 0.26 0.92 N EB/EA N97.ph -
N98 278.99551 -23.76181 1.558044 19.69 0.33 0.94 N EA N98.ph -
N99 279.00510 -23.75259 1.573432 18.31 0.10 1.28 N EW N99.ph -
N100 278.98193 -23.95709 1.605379 16.51 0.43 0.80 N EA N100.ph -
N101 279.05904 -23.81200 1.832920 18.67 0.16 1.15 N per N101.ph -
N102 279.19201 -23.87498 1.853686 20.44 0.48 1.28 N per N102.ph -
N103 279.05753 -24.04738 2.141095 16.53 0.29 0.83 N EA N103.ph - 423122
N104 279.20969 -23.76272 2.290776 18.20 0.12 1.07 N EA N104.ph -
N105 278.97544 -24.01608 2.328763 17.61 0.09 0.98 N sin N105.ph -
N106 279.13772 -23.81462 2.466291 17.65 0.09 1.17 N susp N106.ph -
N107 279.17496 -24.00387 0.078948 16.82 0.08 0.51 N SX/DS N107.ph -
N107 279.17496 -24.00387 2.831980 16.82 0.21 0.51 N EA N107.ph -
N108 279.11341 -23.82857 3.337209 17.10 0.06 1.06 N EA N108.ph -
N109 279.04543 -24.04574 3.525583 16.32 0.06 0.87 N SR N109.ph - 423111
N110 279.15099 -23.99133 3.571197 18.94 0.31 0.97 N EA N110.ph -
N111 278.98028 -23.95300 3.681886 17.66 0.07 0.94 N susp N111.ph -
N112 279.16017 -24.09406 3.716239 99.99 0.13 9.99 N EA N112.ph -
N113 279.04831 -23.80348 3.997504 17.23 0.20 0.91 N EA N113.ph - 423112
N114 279.03567 -23.95722 4.276899 17.63 0.21 1.33 N SR N114.ph -
N115 278.99808 -23.80105 4.508299 19.32 0.27 1.34 N SR N115.ph -
N116 279.05247 -23.83033 4.664064 16.85 0.05 1.02 N SR N116.ph -
N117 279.01670 -23.89854 4.722364 17.89 0.10 0.83 N EA N117.ph -
N118 279.18987 -23.79898 5.181553 14.03 0.03 1.81 N SR N118.ph -
N119 279.03667 -23.79208 5.761552 14.19 0.04 1.81 N SR N119.ph -
N120 278.96868 -24.01618 5.951343 14.79 0.05 1.78 N SR N120.ph -
N121 279.19535 -23.87185 6.068994 16.73 0.32 0.87 N EA N121.ph -
N122 279.00247 -24.07641 6.207841 15.48 0.10 1.35 N SR N122.ph -
N123 279.06924 -23.77435 6.435757 17.97 0.09 0.94 N sin N123.ph -
N124 279.15487 -23.80364 6.441756 19.86 0.27 1.07 N EA N124.ph -
N125 279.17348 -23.96437 7.270429 16.87 0.05 0.99 N SR N125.ph -
N126 279.21504 -24.00274 7.896560 14.61 0.09 1.34 N per N126.ph -
N127 279.20397 -23.98015 8.296926 18.20 0.14 1.19 N SR N127.ph -
N128 279.15277 -23.85382 8.303006 13.85 0.03 1.73 N EA? N128.ph -
N129 279.22867 -23.93613 8.521754 16.34 0.04 0.90 N SR N129.ph -
N130 279.21712 -23.92131 8.892122 14.81 0.07 1.68 N SR N130.ph -
N131 279.20144 -23.94493 10.0318 14.19 0.04 1.77 N SR N131.ph -
N132 279.05829 -24.05279 10.8002 18.49 0.14 0.92 N EA N132.ph -
N133 279.01466 -23.75464 11.6731 18.18 0.09 0.78 N SR N133.ph -
N134 279.21031 -24.01319 12.9121 15.44 0.06 1.82 N SR N134.ph -
N135 279.18266 -24.08313 14.4244 15.44 0.13 1.71 N SR N135.ph -
N136 279.13519 -23.97464 14.7967 14.35 0.09 1.79 N SR N136.ph -
N137 278.99090 -24.04527 15.8974 14.37 0.04 1.76 N SR N137.ph -
N138 279.19407 -23.96823 16.5839 16.53 0.06 1.30 N SR N138.ph -
N139 279.16373 -23.99691 16.6432 14.80 0.05 1.87 N SR N139.ph -
N140 279.07823 -23.97858 17.1276 15.43 0.09 1.80 N SR N140.ph -
N141 279.04851 -23.77062 17.4260 16.29 0.13 1.71 N SR N141.ph -
N142 279.06801 -23.87761 18.5286 15.86 0.07 1.76 N SR N142.ph -
N143 279.03245 -23.79144 18.5638 13.54 0.09 1.85 N SR N143.ph -
N144 279.04011 -23.82196 19.3913 15.49 0.13 1.74 N SR N144.ph -
N145 279.11716 -23.99519 19.6257 15.48 0.17 1.70 N SR N145.ph -
N146 279.15226 -24.01026 19.7304 16.32 0.43 0.86 N SR N146.ph -
N147 279.05338 -23.88718 24.4962 13.84 0.10 1.89 N SR N147.ph -
N148 279.05564 -23.87347 24.7709 14.86 0.19 1.76 N SR N148.ph -
N149 278.99200 -24.01117 25.5000 14.72 0.21 1.71 N SR N149.ph -
N150 279.06867 -23.98600 26.2577 18.41 0.22 1.18 N SR N150.ph -
N151 279.17344 -24.01953 28.2394 17.78 0.07 0.60 N susp N151.ph -
N152 278.98783 -23.94503 28.6778 14.97 0.03 1.72 N SR N152.ph -
N153 279.18890 -23.85032 29.1585 15.70 0.10 1.48 N SR N153.ph -
N154 279.18378 -23.99220 29.4015 13.77 0.05 1.81 N SR N154.ph -
N155 279.04732 -23.73273 29.9938 15.38 0.13 1.70 N SR N155.ph -
N156 279.07638 -24.07393 33.2865 15.01 0.12 1.42 N SR N156.ph -
N157 279.20769 -23.75346 33.2933 15.59 0.07 1.84 N SR N157.ph -
N158 279.10927 -23.82697 33.7146 14.44 0.09 1.70 N SR N158.ph -
N159 279.11122 -23.75069 40.2227 17.71 0.87 0.67 N SR N159.ph -
N160 279.02323 -23.89911 43.6877 14.95 0.11 1.69 N SR N160.ph -
N161 279.13737 -23.83375 51.472 17.72 0.08 1.17 N susp N161.ph -
N162 279.02459 -23.81400 52.074 16.10 0.15 1.33 N SR N162.ph -
N163 279.05702 -24.00841 53.578 14.74 0.25 1.83 N SR N163.ph -
N164 279.20326 -23.80342 58.858 14.02 0.28 1.34 N SR N164.ph -
N165 279.08448 -23.81624 60.561 14.88 0.02 1.29 N SR N165.ph -
N166 278.99620 -23.85966 63.220 13.68 0.36 1.93 N SR N166.ph -
N167 279.21439 -23.82583 74.596 18.31 0.14 1.37 N SR N167.ph -
N168 279.00571 -24.05782 80.427 16.78 0.44 1.84 N SR N168.ph -
N169 279.04325 -23.94015 102.02 16.06 0.43 1.69 N SR N169.ph -
N170 279.22378 -23.73437 121.75 15.87 0.37 1.89 N SR N170.ph -
N171 279.20100 -23.98472 192.27 16.01 0.33 1.78 N SR N171.ph -
N172 279.22238 -24.07796 250.63 18.00 0.68 2.07 N SR N172.ph -
N173 279.03356 -23.72540 3100 17.12 0.20 1.64 N susp N173.ph -
N174 279.11671 -23.86319 3100 17.50 0.19 0.69 N susp N174.ph -
N175 279.04390 -23.80562 3100 17.01 0.56 0.78 N susp N175.ph -
a Proper motion membership status: Y - member or likely member, N - field object, U - no data or data ambiguous
b Variable type

EA – detached eclipsing binary, EB – type β Lyr eclipsing binary, EW – contact binary,

RS CVn/E — RS CVn type binary with eclipse,

SX – SX Phe type pulsator, DS – δ Sct type pulsator,

sin – sinusoidal light curve of unknown origin,

SR – semiregular,

per – periodic variable of unknown type, susp – suspected variable.

c Data columns:
  1. HJD - 2 400 000.0
  2. magnitude
  3. error of magnitude (dummy points are maked with the error=9.999)
  4. photometric phase
d ID in OGLE IV Catalog:
ELLnnnnnn: numbers in the catalog of ellipsoidal binary systems,
nnnnnn - numbers in the catalog of eclipsing binary systems at ftp://ftp.astrouw.edu.pl/ogle/ogle4/OCVS/blg/ecl/


Table 2: Basic properties of stars from the catalog of C. Clement
(http://www.astro.utoronto.ca/~cclement/cat/C1833m239) for which lightcurves were obtained.
Star RA
[deg. J2000.0]
DEC
[deg. J2000.0]
Period
[days]
V
[mag]
Δ V
[mag]
B-V
[mag]
PMa Typeb V light-curvec B light-curvec Remarksd
1 279.08149 -23.90913 0.615541 14.19 1.00 0.70 Y RR0 1.ph -
2 279.14547 -23.88515 0.641721 13.97 0.85 0.65 Y RR0 2.ph -
3 279.15833 -23.78757 0.515441 15.77 0.93 0.62 N RR0 3.ph -
4 279.09734 -23.92479 0.716394 14.08 0.76 0.64 Y RR0 4.ph -
5 279.04410 -23.91682 93.103 11.02 0.47 1.84 Y SR 5.ph -
6 279.07603 -23.93433 0.638507 14.02 0.66 0.69 Y RR0 6.ph -
7 278.99001 -23.79466 0.649520 14.08 1.02 0.55 Y RR0 7.ph -
8 279.08633 -23.92419 58.480 10.84 0.58 1.33 Y SR 8.ph -
9 279.03417 -23.91746 94.252 11.07 0.43 1.89 Y SR 9.ph -
10 279.08719 -23.94093 0.646026 14.13 1.00 0.67 Y RR0 10.ph -
11 279.09464 -23.90254 1.690486 12.77 0.70 0.45 Y CW 11.ph -
12 279.09899 -23.92749 0.322622 14.15 0.43 0.52 Y RR1 12.ph -
13 279.11937 -23.86103 0.672528 14.02 0.99 0.69 Y RR0 13.ph -
14 279.16879 -23.76872 200.00 14.68 4.03 1.81 N M 14.ph -
15 279.13367 -23.92802 0.373197 14.24 0.43 0.62 Y RR1 15.ph -
16 279.15406 -23.90931 0.325296 14.14 0.41 0.53 Y RR1 16.ph -
18 279.06728 -23.78754 0.324895 14.07 0.43 0.48 Y RR1 18.ph -
19 279.08578 -23.87150 0.384030 14.13 0.42 0.60 Y RR1 19.ph -
20 279.06167 -23.94251 0.756133 14.03 0.61 0.68 Y RR0 20.ph -
21 279.10728 -23.88280 0.327135 14.02 0.41 0.46 Y RR0 21.ph -
23 279.09594 -23.91154 0.551621 14.29 1.12 0.58 Y RR0 23.ph -
24 279.09078 -23.90371 1.714854 13.42 0.65 0.90 Y BL Her 24.ph -
25 279.19288 -23.80070 0.402380 14.09 0.41 0.59 Y RR1 25.ph -
30 279.17108 -23.97208 82.500 10.64 0.76 1.82 Y SR 30.ph -
34 279.10863 -23.92608 30.300 11.27 0.17 1.78 Y SR 34.ph -
35 279.10017 -23.90817 31.900 11.32 0.25 1.72 Y SR 35.ph -
39 279.04053 -23.99322 65.640 16.82 0.61 1.81 N SR 39.ph -
40 279.14508 -23.78981 37.841 15.33 0.26 1.76 N SR 40.ph -
KT-01 279.18057 -23.94046 0.313872 18.62 0.19 1.95 N EW KT-01.ph -
KT-02 279.17424 -23.93922 0.490629 17.33 0.28 0.65 Y EA/EB KT-02.ph - 423217
KT-03 279.17192 -23.87219 0.365034 18.70 0.24 0.89 N EW KT-03.ph - 423216
KT-04 279.16406 -23.87383 0.035743 16.83 0.16 0.52 Y SX KT-04.ph -
KT-05 279.16284 -23.84108 0.060833 17.21 0.20 0.58 N SX KT-05.ph -
KT-07 279.15353 -23.95021 0.329797 17.67 0.49 0.85 Y EW KT-07.ph - 423211
KT-08 279.14863 -23.92095 0.363902 19.68 0.64 1.08 Y EW KT-08.ph - 423208
KT-10 279.13457 -23.90778 0.037495 16.60 0.09 0.58 Y SX KT-10.ph -
KT-12 279.12893 -23.89695 0.443610 16.46 0.92 0.70 N RR0 KT-12.ph -
KT-13 279.12860 -23.89616 0.281733 17.22 0.45 0.68 Y EW KT-13.ph - 423192
KT-14 279.12781 -23.89833 0.374655 14.13 0.25 0.45 Y RR1 KT-14.ph -
KT-15 279.12550 -23.83313 0.338112 16.45 0.55 0.94 N EW KT-15.ph - 423188
KT-16 279.12652 -23.95366 0.281901 14.12 0.07 0.49 Y RR1 KT-16.ph - ELL925311
KT-18 279.12097 -23.83316 2.764243 17.65 1.08 0.65 N EA KT-18.ph - 423184
KT-20 279.10869 -23.85749 0.288495 16.66 0.17 0.44 Y EW KT-20.ph - 423175
KT-23 279.09932 -23.85456 0.298523 16.47 0.24 0.43 Y EW KT-23.ph - 423159
KT-26 279.09650 -23.88985 0.361366 14.04 0.21 0.28 Y RR1 KT-26.ph -
KT-27 279.09392 -23.92011 0.042174 16.99 0.39 0.55 Y SX KT-27.ph -
KT-28 279.09183 -23.86848 0.055606 16.17 0.06 0.60 Y SX KT-28.ph -
KT-29 279.08733 -23.93006 0.044326 16.40 0.18 0.57 Y SX KT-29.ph -
KT-33 279.07025 -23.89847 0.244137 16.96 0.08 0.72 Y EW KT-33.ph -
KT-34 279.07036 -23.92362 0.047319 16.81 0.11 0.58 Y SX KT-34.ph -
KT-36 279.06619 -23.93530 0.313264 14.13 0.35 0.52 Y RR1 KT-36.ph -
KT-37 279.05493 -23.89639 0.296055 14.09 0.11 0.51 Y RR1 KT-37.ph -
KT-38 279.04764 -23.94652 0.032787 16.88 0.06 0.49 Y SX KT-38.ph -
KT-39 279.04161 -23.86605 1.474834 17.28 0.19 0.84 Y EA KT-39.ph - 423107
KT-40 279.03386 -23.86364 0.437192 17.65 0.21 0.78 N EW KT-40.ph - 423102
KT-41 279.02953 -23.90368 0.293888 17.66 0.57 1.06 N EW KT-41.ph - 423099
KT-42 279.14445 -23.87534 0.554893 17.29 0.11 0.62 Y EW KT-42.ph - 423203
KT-43 279.10116 -23.93863 0.220520 17.36 0.10 0.77 Y EW KT-43.ph - 423166
KT-45 279.09183 -23.91163 0.050076 16.59 0.23 0.54 Y SX KT-45.ph -
KT-46 279.09066 -23.97364 0.610198 19.41 0.99 0.92 Y EA KT-46.ph - 423150
KT-48 279.06892 -23.96013 0.338920 20.11 0.96 0.96 N EW KT-48.ph -
KT-51 279.14617 -23.88433 0.103422 14.62 0.015 0.20 Y sin KT-51.ph -
KT-54 279.10395 -23.84729 0.083643 16.36 0.09 0.60 Y SX KT-54.ph -
KT-55 279.09684 -23.89946 0.658737 14.11 0.91 0.63 Y RR0 KT-55.ph -
PK-05 279.09275 -23.90914 0.242839 18.31 0.25 0.92 Y EW PK-05.ph -
Ku-1 278.99633 -23.95372 0.305808 14.09 0.23 0.45 Y RR1 Ku-1.ph -
Ku-2 279.01235 -23.84155 0.335239 14.10 0.16 0.51 Y RR1 Ku-2.ph -
Ku-3 279.12304 -24.02582 0.334022 14.01 0.39 0.42 Y RR1 Ku-3.ph -
Ku-4 279.13199 -23.82516 0.290248 14.17 0.13 0.64 Y RR1 Ku-4.ph - ELL925312
CV1 279.10275 -23.90986 999 17.24 4.60 0.98 Y UG CV1.ph -
CV2 279.01133 -23.92350 999 19.35 0.85 0.52 Y UG CV2.ph -
P1 279.09333 -23.94150 999 19.62 0.99 0.89 Y mlens P1.ph -
SLW-4 279.07296 -23.90731 61.500 11.15 0.26 1.77 Y SR SLW-4.ph -
SLW-5 279.07658 -23.90036 38.000 11.33 0.12 1.67 Y SR SLW-5.ph -
SLW-8 279.09017 -23.93250 51.530 11.24 0.24 1.69 Y SR SLW-8.ph -
SLW-11 279.11688 -23.88978 39.500 11.29 0.15 1.81 Y SR SLW-11.ph -
a Proper motion membership status: Y - member or likely member, N - field object, U - no data or data ambiguous.
b Variable type

EA - detached eclipsing binary, EB - type β Lyr eclipsing binary, EW - contact binary,

RS CVn/E - RS CVn-type binary with eclipse, SX - type SX Phe pulsator, DS - type δ Sct pulsator,

sin - sinusoidal light curve of unknown origin, per - periodic variable of unknown type, susp - suspected variable.

c Data columns:
  1. HJD - 2 400 000.0
  2. magnitude
  3. error of magnitude (dummy points are maked with the error=9.999)
  4. photometric phase
d ID in OGLE IV Catalog:
ELLnnnnnn: numbers in the catalog of ellipsoidal binary systems,
nnnnnn - numbers in the catalog of eclipsing binary systems at ftp://ftp.astrouw.edu.pl/ogle/ogle4/OCVS/blg/ecl/