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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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CONCLUSIONS<br />

Us<strong>in</strong>g NH3360 we have separated the C & N contributions<br />

C overabundance <strong>in</strong> massive <strong>Elliptical</strong>s<br />

Correlates with σ<br />

Differences with environment<br />

Formation of field E from a previously C-enriched gas.<br />

Coma E were fully assembled before the massive release of C<br />

A richer star formation history <strong>in</strong> field E compared to Coma.<br />

N is mildly enhanced (with respect to solar ratio)<br />

NH3360 does NOT correlate with σ (PRIMARY)<br />

No differences with environment<br />

N is produced by massive <strong>and</strong> <strong>in</strong>termediate-mass stars (enrichment delay w.r.t. to Mg)<br />

C is likely produced <strong>in</strong> massive stars <strong>and</strong> lower mass stars<br />

Field galaxies have experienced a more extended SF history<br />

time C<br />

Mg N C<br />

N<br />

Fe

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