Poster abstract details

BD +30 3639 is a member of the rare group of PN with Wolf--Rayet type central star and expansion velocites higher in [O III] than in [N II]. Observation images and high resolution spectra from literature are used to produce a 3-D model of the nebula using the code SHAPE. We find that two different velocity laws are needed. Hence, the internal velocity field of BD +30 3639 decreases with the distance from the central star in agreement with the radiation-hydrodynamic models. Furthermore, the high--speed bipolar collimated outflows jets are described with a cylindrical velocity component in agreement with the magneto--hydrodynamic models. In addition, the distance of BD +30 3639 is estimated between 1.3 and 1.7 kpc. Moreover, the criss--cross mapping technique shows that the kinematic center of nebula is located 0.5 arcsec from the central star. Finally, we find indications of possible interaction between the east part of nebula and the H2 molecule.