Spatially resolved kinematic observations of the planetary nebulae Hen 3-1333 and Hen 2-113

TL;DR

This study uses integral field spectroscopy and 3D modeling to analyze the kinematic structures of planetary nebulae Hen 3-1333 and Hen 2-113, revealing their expansion velocities and geometric orientations.

Contribution

It provides the first detailed spatially resolved velocity maps and 3D geometric models of these nebulae, elucidating their complex multipolar structures and orientations.

Findings

Hen 3-1333 expands at ~32 km/s

Hen 2-113 expands at ~23 km/s

Primary lobes have specific inclination and position angles

Abstract

We have performed integral field spectroscopy of the planetary nebulae Hen 3-1333 (PNG332.9-09.9) and Hen 2-113 (PNG321.0+03.9), which are unusual in exhibiting dual-dust chemistry and multipolar lobes but also ionized by late-type [WC 10] central stars. The spatially resolved velocity distributions of the H$\alpha$ emission line were used to determine their primary orientations. The integrated H$\alpha$ emission profiles indicate that Hen 3-1333 and Hen 2-113 expand with velocities of ~ 32 and 23 km/s, respectively. The Hubble Space Telescope observations suggest that these planetary nebulae have two pairs of tenuous lobes extending upwardly from their bright compact cores. From three-dimensional geometric models, the primary lobes of Hen 3-1333 and Hen 2-113 were found to have inclination angles of about -30$^{\circ}$ and 40$^{\circ}$ relative to the line of sight, and position angles of -15$^{\circ}$ and 65$^{\circ}$ measured east of north in the equatorial coordinate system, respectively.