Ionization of the diffuse gas in galaxies: hot low-mass evolved stars at work

We revisit the question of the ionization of the diffuse medium in late-type galaxies, by studying NGC 891, the prototype of edge-on spiral galaxies. The most important challenge for the models considered so far was the observed increase of [O iii]/Hβ, [O ii]/Hβ and [N ii]/Hα with increasing distanc...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2011-08, Vol.415 (3), p.2182-2192
Hauptverfasser:	Flores-Fajardo, N., Morisset, C., Stasińska, G., Binette, L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics Earth, ocean, space Exact sciences and technology galaxies: abundances galaxies: individual: NGC 891 galaxies: ISM Gases Ions Physics Star & galaxy formation Stars & galaxies stars: AGB and post-AGB
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