Physics
Scientific paper
Feb 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mim..proc..227y&link_type=abstract
The Magnetized Interstellar Medium, Proceedings of the conference, held in Antalya, Turkey, September 8 - 12, 2003, Eds: B. Uyan
Physics
Scientific paper
DEFPOS (Dual Etalon Fabry-Perot Optical Spectrometer) has been designed to investigate HII regions by observing Hα emission from the interstellar medium (ISM). More detailed investigations of the characteristics including power consumption, temperature, ionization state, kinematics and spatial distribution of this warm ionized gas have been carried out in the University of Wisconsin by detection of the optical line emissions from these faint sources through Fabry-Perot spectrometer. The facility that also provided a velocity resolved Hα survey of the Galaxy is called WHAM which stands for Wisconsin Hα Mapper. DEFPOS has been designed to carry out a smiliar study by detecting the Hα emission from the selected regions of Galactic ISM observable on the northern sky. It will be used in coudé exit of the 1.5-m telescope (RTT150) located at Bakirlitepe near Antalya. Besides interstellar work, DEFPOS will be used to observe the earth atmosphere to examine the state of telluric hydrogen and its variation. This observation will also help to subtract the atmospheric effect from the interstellar observations.
Aksaker Nazim
Akyilmaz Meltem
Kiziloglu Ue.
Şahan Muhittin
Yegingil Ilhami
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