Muhittin ŞAHAN, Nazım AKSAKER, İlhami YEĞİNGİL

Defpos ile ζ oph hıı bölgesinden Hα ölçümleri

TÜBİTAK Ulusal Gözlemevi’nde (TUG, Antalya) bulunan RTT150 teleskopunun coudé çıkışına yerleştirilen DEFPOS (Çift Etalonlu Fabry Perot Optik Tayfölçeri) Gökadamızdaki (Samanyolu) iyonize olmuş ortamlarından gelen Hα salma çizgilerini ölçmek için kullanılmıştır [1]. O9.5 V tayf türlü ζ Oph yıldızının çevresindeki klasik HII bölgesinin 3 farklı noktasından Hα ışınım gözlemleri yapılmıştır. HII doğrultusunda yapılan ölçümlerden, ölçülen noktaların ortalama parlaklık değerleri 86 R ile 92 R (1 R 1 Rayleigh=106 /4 foton cm-2sn-1sr-1), ortalama LSR (Local standart of Rest Durgun Yerel Standart) hızları 1 km/s ile 3 km/s ve ortalama yarı genişlikleri de 23.44 km/s ile 24.4 km/s arasında olduğu görülmüştür. Sonuçların literatürde verilen değerler ile oldukça uyumlu olduğu görülmüştür. Bu çalışmada, önce DEFPOS tayfölçeri ve veri analizi hakkında, daha sonra, ζ Oph HII bölgesinden elde edilen veriler hakkında bilgi verilmiştir. Bu çalışmada, DEFPOS tayfölçeri ve veri analizi hakkında bilgi verildikten sonra, ζ Oph HII bölgesinden elde edilen veriler hakkında bilgi verilmiştir.

Anahtar Kelimeler:

Fabry-Perot Tayfölçeri, Veri Analizleri, HII Bölgeleri, Gezegenimsi Bulutsular

Hα measurements toward ζ oph hii region with defpos

DEFPOS (Dual Etalon Fabry-Perot Optical Spectrometer) located in coudé exit of RTT150 telescope at TUBITAK National Observatory (TUG, Antalya) has used to measure Hα emission line from diffuse ionized gas in Our Galaxy (The Milk Way) [1]. Hα emission line observations were made in direction toward three different points of HII region around O9.5 V ζ Oph star. From observations toward HII region, we found the mean intensity to be 86 R and 92 R (1 R 1 Rayleigh =106 /4 photon cm-2s -1sr-1), the mean LSR velocity to be 1 km/s to 3 km/s and also the mean line-width approximately to be 23.44 km/s and 24.4 km/s. We found that our results are in close agreement with early results given in literature. In this study, we give information firstly about DEFPOS spectrometer and then its data analysis and methods finally about the data obtained from ζ Oph HII region.

Keywords:

Fabry-Perot spectrometer, Data Analysis, HII Regions, Planetary Nebulae,

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