Alicavus, F.

Kahraman Alicavus, F.

Kanvermez, C.

Puskullu, C.

Senyuz, T.

Soydugan, E.

Soydugan, F.

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COMMISSIONS G1 AND G4 OF THE IAUINFORMATION BULLETIN ON VARIABLE STARSVolume 63 Number 6225 DOI: 10.22444/IBVS.6225Konkoly ObservatoryBudapest24 November 2017HU ISSN 0374 – 0676NEW CCD MINIMA TIMES FOR SELECTED ECLIPSING BINARIESSOYDUGAN, F.; ALİÇAVUŞ, F.; ŞENYÜZ, T.; KAHRAMAN ALİÇAVUŞ, F.; PÜSKÜLLÜ, Ç.;KANVERMEZ, Ç.; SOYDUGAN, E.Department of Physics, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, Terzioğlu Kampüsü,TR-17020, Çanakkale, TurkeyAstrophysics Research Centre and Observatory, Çanakkale Onsekiz Mart University, Terzioğlu Kampüsü,TR-17020, Çanakkale, TurkeyObservatory and telescope:T30: 0.3m Cassegrain-Schmidt, T40: 0.4m Cassegrain-Schmidt, T60: 0.6mRitchey-Chrétien, and T122: 1.22m Cassegrain-Nasmyth telescopes of ÇanakkaleOnsekiz Mart University Observatory, Çanakkale.Detector: C1: STL1001E CCD camera, Peltier cooling, KAF–1001Echip, 1024×1024 pixels.C2: ST10MXE CCD camera, Peltier cooling, KAF–3200ME chip, 2174×1536 pixels.C3: Apogee ALTA U42 CCD camera, Peltier cooling, E2VCCD47–10 chip, 2048×2048 pixels.C4: Apogee ALTA U47 CCD camera, Peltier cooling, E2VCCD47–10 chip, 1024×1024 pixels.Method of data reduction:C-MUNIPACK software was used for the reduction process of CCD images anddifferantial photometry (http://c-munipack.sourceforge.net/).Method of minimum determination:The minima times of selected eclipsing binaries were computed with the Kwee–van Woerden method (Kwee & van Woerden, 1956).2 IBVS 6225Times of minima:Star name Time of min. Error Type Filter Rem.HJD 2400000+EL Aqr 55831.4900 0.0003 I BVRI T122+C155834.3773 0.0003 I BVRI T122+C155835.3415 0.0007 II BVRI T122+C155840.3969 0.0002 II BVRI T122+C155853.3950 0.0002 II BVRI T122+C155854.3577 0.0002 II BVRI T122+C1HS Aqr 55780.3389 0.0004 I BVR T30+C255782.4691 0.0002 I BVR T30+C2FN Cam 56086.3767 0.0002 I BVR T60+C356089.4154 0.0002 II BVR T60+C3YY CMi 56010.3738 0.0002 I BVR T40+C4V401 Cyg 55758.4087 0.0003 I BVR T40+C355765.4025 0.0003 I VR T40+C355767.4432 0.0005 II BVR T40+C355779.3852 0.0003 I BVR T40+C355795.4126 0.0002 II BVR T40+C355809.3982 0.0002 II BVR T122+C155814.3486 0.0002 I BVR T122+C155816.3894 0.0002 II BVR T40+C3V488 Cyg 56092.5163 0.0001 II VR T30+C1V700 Cyg 56091.3313 0.0001 I VR T30+C1V704 Cyg 56091.5368 0.0001 II R T30+C1V726 Cyg 56092.3113 0.0002 I R T30+C1V1073 Cyg 55792.3922 0.0002 I BVR T30+C255814.3982 0.0003 I BV T30+C255818.3286 0.0004 I BVR T30+C2EF Dra 56126.4258 0.0004 II BVR T122+C156130.4536 0.0003 I BVR T122+C156131.5155 0.0005 II BVR T122+C1V502 Her 56090.3298 0.0001 I R T30+C1V728 Her 56091.4689 0.0003 I VR T30+C1V829 Her 56092.4579 0.0002 I VR T30+C1IBVS 6225 3Times of minima:Star name Time of min. Error Type Filter Rem.HJD 2400000+RW Leo 56004.3471 0.0001 I VR T40+C4XY Leo 56007.5011 0.0002 II V T40+C4XZ Leo 56007.5007 0.0002 II VR T30+C1V1010 Oph 56092.3686 0.0003 I BV T30+C1BB Peg 56116.4928 0.0001 I V T30+C1V357 Peg 55758.4279 0.0005 II BVR T30+C255760.4521 0.0002 I BVR T30+C255837.3872 0.0002 I BVR T30+C2V407 Peg 55795.4530 0.0006 I BVR T30+C255796.4143 0.0006 II BVR T30+C255802.4576 0.0009 I BVR T30+C255855.3165 0.0006 I BVR T30+C2AO Ser 56004.5788 0.0001 I VR T40+C4HH UMa 56730.4903 0.0004 I BVRI T60+C156731.2428 0.0006 I BVRI T60+C156738.3729 0.0005 I BVRI T60+C1HN UMa 56010.5528 0.0002 I V T40+C4HR UMa 56053.4795 0.0002 I BVR T40+C4TU UMi 55765.3657 0.0003 I BVR T60+C155774.4160 0.0002 I BVR T60+C1PY Vir 56037.3744 0.0002 II BVR T60+C356038.3084 0.0001 II BVR T60+C356044.3776 0.0001 I BVR T60+C356049.3573 0.0001 I BVR T60+C356050.2933 0.0001 I BVR T60+C356052.3157 0.0001 II BVR T60+C356737.3815 0.0002 II BVRI T60+C356737.5358 0.0003 I BVRI T60+C356738.4700 0.0001 I BVR T60+C356738.6281 0.0008 II BVR T60+C3GSC 3133-1847 56112.3865 0.0003 II BVR T30+C156119.4247 0.0005 I BVR T30+C14 IBVS 6225Times of minima:Star name Time of min. Error Type Filter Rem.HJD 2400000+SAO 48275 56091.3940 0.0007 I BVR T40+C456094.3805 0.0004 I BVR T40+C456100.3438 0.0004 I BVR T40+C4Explanation of the remarks in the table:In the remarks column of the table, telescopes and CCD detectors used in theobservations are indicated.Remarks:In this study, we present 67 minima times of 29 eclipsing binaries.Acknowledgements:This study has been partly supported by the Scientific and Technological ResearchCouncil of Turkey (TÜBİTAK, under the Grant No. 111T224). The authors wouldlike to thank the staff at Astrophysics Research Centre and Ulupnar Observatory,Çanakkale Onsekiz Mart University. The project was supported partly by Na-tional Planning Agency (DPT) of Turkey (project DPT-2007K120660 carried outat Çanakkale Onsekiz Mart University) and the Scientific Research Projects Coor-dination Unit of Istanbul University (project no. 3685).Reference:Kwee, K. K., van Woerden, H., 1956, Bull. Astron. Inst. Netherlands, 12, 327

New CCD Minima Times for Selected Eclipsing Binaries

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