The 'Hubble-type' outflows from the high excitation, poly-polar planetary nebula NGC 6302

Abstract

Spatially resolved profiles of the Halpha and [NII] lines have been obtained at unprecendented signal--to--noise ratios over the outflowing lobes of the high--excitation, poly--polar planetary nebula NGC~6302. A deep image in the light of [NII]6584 A was also obtained of the extremities of the prominent north--western lobe. The Manchester Echelle spectrometer combined with the 2.1--m San Pedro Martir telescope (Mexico) was used for these observations. Firstly, an accurate value of the systemic heliocentric radial velocity of Vsys = -29.8 +/- 1 km/s has been established. Also, from `velocity ellipses' across its diameter from previous observations the parallel--sided north--western lobe is shown to have a circular section with a tilt of its axis to the plane of the sky of 12.8 deg. With this starting point the pv arrays of profiles have been very closely simulated, using the SHAPE code, with Hubble-type outflows. The faint extremities of the north--western outflow are shown to be expanding at 600 km/s. The prominent lobes of NGC~6302 have then been generated in an eruptive event with a dynamical age of 1900 y for the expansion proper-motion distance of 1.04 +/- 0.16 kpc as measured here by comparing a 1956 image with that taken in 2002. Kinematical evidence of a high--speed `skirt' around the nebular core, expanding nearly orthogonally to the lobes, is also presented as are the unusual motions at the western extremities of the NW lobe.

arXiv comment32 pages, 15 figures, accepted by Astronomical Journal

References in corpus (5)

• Dissecting the Homunculus nebula around Eta Carinae with spatially resolved near-infrared spectroscopy
• Planetary nebula or symbiotic Mira? Near infrared colours mark the difference
• The coronal line regions of planetary nebulae NGC6302 and NGC6537: 3-13um grating and echelle spectroscopy
• Menzel 3: Dissecting the ant
• IRAS04210+0400: Modeling the optical spectra from flaring large scale jets

Cited by in corpus (20)

• Magnetic fields in planetary nebulae and post-AGB nebulae
• Proof of polar ejection fom the close-binary core of the planetary nebula Abell 63
• Hubble-type outflows of the high-excitation, poly-polar planetary nebula NGC 6302 -- from expansion proper motions
• Morphological Structures of Planetary Nebulae
• The massive expanding molecular torus in the planetary nebula NGC 6302
• The Expansion Proper Motions of the Planetary Nebula NGC 6302 from HST imaging
• Observed Planetary Nebulae as Descendants of Interacting Binary Systems
• A 3D Photoionization Model of the Extreme Planetary Nebula NGC 6302
• ALMA high spatial resolution observations of the dense molecular region of NGC 6302
• Massive expanding torus and fast outflow in planetary nebula NGC 6302
• Hydrodynamical Velocity Fields in Planetary Nebulae
• An updated catalog of OH-maser-emitting planetary nebulae
• The first "water fountain" collimated outflow in a planetary nebula
• A high-speed bi-polar outflow from the archetypical pulsating star Mira A
• High-speed knots in the hourglass shaped planetary nebula Hubble 12
• Detection of the Central Star of the Planetary Nebula NGC 6302
• Panchromatic HST/WFC3 Imaging Studies of Young, Rapidly Evolving Planetary Nebulae. I. NGC 6302
• The expansion proper motions of the extraordinary giant lobes of the planetary nebula KjPn 8 revisited
• Astrophysics in 2006
• Planetary Nebulae with UVIT II: Revelations from FUV vision of Butterfly Nebula NGC 6302