Poster abstract details

Morphological shaping of planetary nebulae is believed to occur during the evolutionary transition from the ending of AGB to the PN phase. To understand the natures and characteristics of these objects in the transient stage, we have investigated the high-resolution Hubble Space Telescope imaging of young PNe with multiple collimated lobes in different orientations and their IR features. In this present report, we describe our results showing that out of eleven young multipolar PNe observed in our sample, five reveal broad silicate features (9.7 and 18 $micron$) which are commonly seen in oxygen-rich PNe and two display ring/arc structures. According to their adopted distances and expansion velocities, the sources are indeed young PNe with kinematic ages of $sim$ 10$^{3}$ yrs. We suggest that our sample may have similar intrinsic structures as other multipolar nebulae based on 3D morpho-kinematic modeling.