Abstract
We present a high resolution spectrum of PU Vul observed at Bohyunsan Optical Astronomy Observatory (BOAO) on April 9, 2004. Permitted emission and nebular lines of PU Vul had been significantly changed compared to all spectra observed since its eruption in 1979. Therefore all new lines should be re-identified and were done so. We do-convoluted a <TEX>$H{\beta}$</TEX> line into several emission components with Gaussian functions. Then we carefully discussed the geometrical feature of PU Vul in April 2004.
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