41 citations · 187 across the 26 of their papers we have counts for
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The Nature of V1464 Aql: A New Ellipsoidal Variable with a Delta Scuti Component
H. A. Dal, E. Sipahi
Taking into account the results obtained from the models and analyses of the BVRI light curves, we discuss the nature of V1464 Aql. The analyses indicated that the mass ratio of th…
Absolute Properties of An Overcontact Binary HH Boo
H. A. Dal, E. Sipahi
We obtained multi-colour light curves of HH Boo. We analysed the orbital period variation of the system. The analysis indicated that there is possible mass transfer from the second…
V369 Gem: A New Ellipsoidal Variable System With High Level Chromospheric Activity
H. A. Dal, E. Sipahi, O. Özdarcan
In this study, we present BVR photometry of V369 Gem in 2006 - 2008. We combined our V data with the data taken from the literature. We analysed all the data together and calculate…
Brightness variations in totally-eclipsing binary GSC4589-2999
E. Sipahi, H. A. Dal, O. Özdarcan
We present multi-colour CCD photometry of GSC4589-2999 obtained in 2008 and 2009. The observations indicate that the system is an active Algol binary. Based on the new data, the me…
An Eccentric Eclipsing Binary: CGAur
Esin Sipahi, Hasan Ali Dal
In this study, we present CG Aur's photometric observations obtained in the observing seasons 2011 and 2012, the first available multi-colour light curves. Their shape indicates th…
BD+36 3317: An algol type eclipsing binary in Delta Lyrae cluster
O. Özdarcan, E. Sipahi, H. A. Dal
In this paper, we present standard Johnson UBV photometry of the eclipsing binary BD+36 3317 which is known as a member of Delta Lyrae (Stephenson 1) cluster. We determined colors…