12 citations · 16 across the 4 of their papers we have counts for
5 papers
Spectroscopic and photometric analysis of 21 chromospherically active variables: activity cycles and differential rotation
Orkun Özdarcan
We investigate magnetic activity properties of 21 stars via medium resolution optical spectra and long-term photometry. Applying synthetic spectrum fitting method, we find that all…
High Level Magnetic Activity Nature of an Eclipsing Binary KIC 12418816
Hasan Ali Dal, Orkun Ozdarcan
We present comprehensive spectroscopic and photometric analysis of the detached eclipsing binary KIC 12418816, which is composed of two very similar and young main sequence stars o…
KIC 9451096: Magnetic activity, flares and differential rotation
Orkun Özdarcan, Ezgi Yoldaş, Hasan Ali Dal
We present spectroscopic and photometric analysis of KIC\,9451096, where the latter is based on very high precision long cadence photometry obtained by space craft. Combin…
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…
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…