To investigate the physical properties of HII regions and some PNe about 4'in size, a
DEFPOS Fabry–Perot spectrometer has been redesigned and set up at the coudé exit of the …

Nickel is an important element in fusion reactor technologies and astrophysical applications.
Therefore, the knowledge of astrophysical S-factors and cross-sections on nickel isotopes is …

In this study, we present the results of a careful analysis of cross sections of some important
iron (Fe) group target elements (20≤ Z≤ 28) for astrophysical (n, p) reactions such as Si …

Observation of the Geocoronal Balmer Alpha with DEFPOS Page 1 85 Terr. Atmos. Ocean. Sci.,
Vol. 18, No. 1, 85-96, March 2007 Observation of the Geocoronal Balmer Alpha with DEFPOS …

The hydrogen Balmer‐α emission line spectrum of ten diffuse ionization sources in the Milk
Way–NGC 40 (WC8), NGC 2022, NGC 6210, NGC 6618 (M17, Sh2‐45), NGC 6720 (M57) …

A dual étalon Fabry‐Pérot spectrometer called DEFPOS has been used for observing
physical properties of HII regions and planetary nebulae since May 2007 (Aksaker et al …

In this study, details of the intensity calibration of Dual Etalon Fabry-Perot Optical
Spectrometer (DEFPOS) were described. At TUBITAK National Observatory (TUG), The …

Abstract A 7.5 cm, dual étalon Fabry-Pérot spectrometer called DEFPOS has been set up at
Coudé focus of 150 cm RTT150 telescope at TUBITAK National Observatory (TUG, Antalya …

We present Hα emission line measurements of northern bright H ii regions selected from the
Sharpless (1959) catalog near the Galactic plane (b⩽±6°). A total of 10 H ii regions were …

In Knowledge of the proton-proton (pp) chain and CNO cycle are required for the evolution
of main sequence stars during the early formation of the universe. In this study, we …