1. Department of Astronomy and Space Sciences, Ege University, 35100 Bornova, İzmir, Turkey
2. Department of Astronomy and McDonald Observatory, The University of Texas, Austin, TX 78712, USA
3. Department of Astronomy SW319, Indiana University, 727 E 3rd Street, Bloomington, IN 47405, USA
4. Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 2Y2, Canada
5. Gemini Observatory, Casilla 603, La Serena, Chile