The morpho-kinematical structure and chemical abundances of the complex planetary nebula NGC 1514

ABSTRACT We present high-resolution, long-slit optical spectra and images of the planetary nebula NGC 1514. The position velocity maps [O iii] emission line reveal complex kinematics with multiple structures. A morpho-kinematical analysis suggests an inner shell, originally spherical now distorted by several bubbles, attached outer shell. two well-defined, mid-infrared rings 1514 are not detected in our spectra, which prevented us from doing a kinematical them. Based exclusively on their morphology, we propose barrel-like structure to explain rings. Several ejection processes have been possibly involved formation nebula, although time sequence is difficult establish current data. also analyse intermediate-resolution, goal studying physical parameters chemical abundances nebular moderate-excitation weak lines [Ar iii], [Ne He i, ii. Neither [N ii] nor other low-excitation detected. found electron temperature around 14 000 K gas density range 2000–4000 cm−3.