Nitrogen and Carbon Abundances in Elliptical Galaxies - magpop
Nitrogen and Carbon Abundances in Elliptical Galaxies - magpop
Nitrogen and Carbon Abundances in Elliptical Galaxies - magpop
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Coma Field RESULTS II<br />
N<br />
N (C,-O)<br />
C N(-O)<br />
C (-O)<br />
log σ<br />
Index-σ relations<br />
<strong>Nitrogen</strong> abundances are not<br />
correlated with mass (contrary to<br />
expectations) → <strong>Nitrogen</strong> is primary<br />
In primary nucleosynthesis, N is produced at the same time as C <strong>and</strong><br />
O <strong>and</strong> it is <strong>in</strong>dependent of metallicity while <strong>in</strong> secondary production N is<br />
synthesized from the C <strong>and</strong> O already present <strong>in</strong> the star, <strong>and</strong> its<br />
abundance is therefore proportional to the heavy elements abundance.<br />
No differences <strong>in</strong> N content between<br />
Coma <strong>and</strong> field galaxies<br />
Mg
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