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The kinematical behavior of ORLs and CELs in PNe with [WC] central star
Miriam Pena, Francisco Ruiz-Escobedo, Jackeline Rechy-Garcıa +1
In Planetary Nebulae (PNe) and HII regions ionic abundances can be derived by using collisionally excited lines (CELs) or recombination lines (ORLs). Such abundances do not coincid…
Imaging the elusive H-poor gas in planetary nebulae with large abundance discrepancy factors
J. García-Rojas, R. L. M. Corradi, H. M. J. Boffin +5
The discrepancy between abundances computed using optical recombination lines (ORLs) and collisionally excited lines (CELs) is a major, unresolved problem with significant implicat…
Study on the Abundance Discrepancy Problem in the Magellanic Clouds
L. Toribio San Cipriano, C. Esteban, G. Domínguez-Guzmán +1
We present chemical abundances of carbon (C) and oxygen (O) in the Large and Small Magellanic Clouds from deep and high-quality optical spectra of HII regions. The data have been t…
Imaging the elusive H-poor gas in the high ADF planetary nebula NGC 6778
Jorge García-Rojas, Romano L. M. Corradi, Hektor Monteiro +3
We present the first direct image of the high-metallicity gas component in a planetary nebula (NGC 6778), taken with the OSIRIS Blue Tunable Filter centered on the O II 4649+50 ang…