The planetary nebula NGC 6153 through the eyes of MUSE

V. Gómez-Llanos; J. García-Rojas; C. Morisset; D. Jones; H. Monteiro; R. Wesson; H. M. J. Boffin; R. L. M. Corradi; F. Pérez-Toledo; P. Rodríguez-Gil

arXiv · 2302.11525

The planetary nebula NGC 6153 through the eyes of MUSE

V. Gómez-Llanos·J. García-Rojas·C. Morisset·D. Jones·H. Monteiro·R. Wesson·H. M. J. Boffin·R. L. M. Corradi·F. Pérez-Toledo·P. Rodríguez-Gil

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Abstract

In this contribution, we present the results of a study on the high abundance discrepancy factor (ADF $\sim$ 10) planetary nebula (PN) NGC 6153 with MUSE. We have constructed flux maps for dozens of emission lines, that allowed us to build spatially resolved maps of extinction, electron temperature ($T_{\rm e}$), electron density ($n_{\rm e}$), and ionic abundances. We have simultaneously constructed ADF maps for O$^+$ and O$^{2+}$ and found that they centrally peak in this PN, with a remarkable spatial coincidence with the low $T_{\rm e}$ found from recombination line diagnostics. This finding strongly supports the hypothesis that two distinct gas phases co-exist: one cold and metal-rich, and a second warm and with ``normal'' metal content. We show that to build $T_{\rm e}$([N II]) and ionic abundance maps of low-ionization species for these objects, recombination contribution to the auroral [N II] and [O II] lines must be properly evaluated and corrected.

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V. Gómez-Llanos, J. García-Rojas, C. Morisset, D. Jones, H. Monteiro, R. Wesson, H. M. J. Boffin, R. L. M. Corradi, F. Pérez-Toledo, P. Rodríguez-Gil. 2023-02-22. The planetary nebula NGC 6153 through the eyes of MUSE. https://arxiv.org/abs/2302.11525

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