Sinan K. Yerli

Discovery of an OB runaway star inside SNR S147

We present first results of a long term study: Searching for OB--type runaway stars inside supernova remnants (SNRs). We identified spectral types and measured radial velocities (RV) by optical spectroscopic observations and we found an early type runaway star inside SNR S147. HD 37424 is a B0.5V type star with a peculiar velocity of 74

Design of a derotator for the 4 m DAG telescope

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DAG: a new observatory and a prospective observing site for other potential telescopes

8 km s

Emission-Line Fluxes of Northern Planetary Nebulae

^{-1}

Turkey's next big science project: DAG the 4 meter telescope

. Tracing back the past trajectories via Monte Carlo simulations, we found that HD 37424 was located at the same position as the central compact object, PSR J0538+2817,

Emission Lines of Northern Planetary Nebulae

30\!\pm\!4

A microwave kinetic inductance detector for the DAG telescope

kyr ago. This position is only

DAG telescope site studies and infrastructure for possible international co-operations

\sim

Project management of DAG: Eastern Anatolia Observatory

4 arcmin away from the geometrical center of the SNR. So, we suggest that HD 37424 was the pre--supernova binary companion to the progenitor of the pulsar and the SNR. We found a distance of 1333

Auxiliary free space optical communication project to ensure continuous transfer of data for DAG the 4m telescope

^{+103}_{-112}