IFU spectroscopy of southern PNe: III

Abstract

In this paper we describe integral field spectroscopic observations of four southern Galactic Planetary Nebulae (PNe), M3-4, M3-6, Hen2-29 and Hen2-37 covering the spectral range, 3400-7000 A. We derive the ionisation structure, the physical conditions, the chemical compositions and the kinematical characteristics of these PNe and find good agreement with previous studies that relied upon the long-slit technique in their co-spatial area. From their chemical compositions as well as their spatial and kinematic characteristics, we determined that Hen2-29 is of the Peimbert Type I (He and N rich), while the other three are of Type II. The strength of the nebular He II line reveals that M3-3, Hen2-29 and Hen2-37 are of mid to high excitation classes while M3-6 is a low excitation planetary nebula (PN). A series of emission-line maps extracted from the data cubes were constructed for each PN to describe its overall structure. These show remarkable morphological diversity. Spatially resolved spectroscopy of M3-6, shows that the recombination lines of CII, CIII, CIV and NIII are of nebular origin, rather than arising from the central star as had been previously proposed. This result increases doubts regarding the weak emission-line star (WELS) classification raised by Basurah et al. (2016). In addition, they reinforce the probability that most genuine cases of WELS are arise from irradiation effects in close binary central stars (Miszalski 2009).

12 pages, 6 figures

References in corpus (6)

• The Wide Field Spectrograph (WiFeS): Performance and Data Reduction
• Chemical compositions and plasma parameters of planetary nebulae with Wolf-Rayet and wels type central stars
• Bayesian posterior classification of planetary nebulae according to the Peimbert types
• The physical structure of planetary nebulae around sdO stars: Abell36, DeHt2, and RWT152
• Improved spectral descriptions of planetary nebulae central stars
• Spatially resolved kinematic observations of the planetary nebulae Hen 3-1333 and Hen 2-113

Cited by in corpus (11)

• A revised planetary nebula luminosity function distance to NGC 628 using MUSE
• Catalogue of central stars of planetary nebulae: Expanded edition
• Forming H-shaped and barrel-shaped nebulae with interacting jets
• The MUSE view of the planetary nebula NGC 3132
• IFU spectroscopy of Southern Planetary Nebulae IV: A Physical Model for IC 418
• Exploring the differences of integrated and spatially resolved analysis using integral field unit data: The case of Abell 14
• IFU spectroscopy of Southern Planetary Nebulae V: Low-ionization structures
• IFU spectroscopy of Southern PNe: VII Photo-ionization modelling of intermediate excitation class objects
• IFU spectroscopy of southern PN VI: The extraordinary chemo-dynamics of Hen 2-111
• On the role of reduced wind mass-loss rate in enabling exoplanets to shape planetary nebulae
• Variable jets at the termination of the common envelope evolution