Integral field spectroscopy of the planetary nebula NGC 3242 and the puzzling nature of its low-ionization structures

Open Access

Fig. 2

Emission line maps of [N II] λ5755. The left panel illustrates the map after masking the pixels with low S/N, while in the right one is the final map that we used. The color bar represents pixel values (in terms of flux units ×10⁻²⁰ erg s⁻¹ cm⁻² spaxel⁻¹).

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