Modelling the 3D morphology and proper motions of the planetary nebula NGC 6302

Abstract

We present 3D hydrodynamical simulations of an isotropic fast wind interacting with a previously ejected toroidally-shaped slow wind in order to model both the observed morphology and the kinematics of the planetary nebula (PN) NGC 6302. This source, also known as the Butterfly nebula, presents one of the most complex morphologies ever observed in PNe. From our numerical simulations, we have obtained an intensity map for the H$\alpha$ emission to make a comparison with the Hubble Space Telescope (HST) observations of this object. We have also carried out a proper motion (PM) study from our numerical results, in order to compare with previous observational studies. We have found that the two interacting stellar wind model reproduces well the morphology of NGC 6302, and while the PM in the models are similar to the observations, our results suggest that an acceleration mechanism is needed to explain the Hubble-type expansion found in HST observations.

arXiv comment5 pages, 3 figures. Accepted by MNRAS

References in corpus (12)

• A far-infrared survey of bow shocks and detached shells around AGB stars and red supergiants
• Velocity centroids as tracers of the turbulent velocity statistics
• Radiation gasdynamics of planetary nebulae -- VI. The evolution of aspherical planetary nebulae
• Velocity statistics from spectral line data: effects of density-velocity correlations, magnetic field, and shear
• Hubble-type outflows of the high-excitation, poly-polar planetary nebula NGC 6302 -- from expansion proper motions
• The massive expanding molecular torus in the planetary nebula NGC 6302
• The Expansion Proper Motions of the Planetary Nebula NGC 6302 from HST imaging
• Interstellar cloud structure: The statistics of centroid velocities
• A wind-shell interaction model for multipolar planetary nebulae
• Massive expanding torus and fast outflow in planetary nebula NGC 6302
• Proper Motions of Young Stellar Outflows in the Mid-Infrared with Spitzer (IRAC). I. The NGC 1333 region
• Detection of the Central Star of the Planetary Nebula NGC 6302

Cited by in corpus (4)

• ALMA high spatial resolution observations of the dense molecular region of NGC 6302
• The interaction of the halo around the butterfly planetary nebula NGC650-1 with the interstellar medium
• The case of NGC 6302: The impact of shocks in the derivation of Nitrogen abundances
• 3-D structures of planetary nebulae