A tight N/O-potential relation in star-forming galaxies
Fuente:
arXiv
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866929436916449280 |
|---|---|
| author | Boardman, Nicholas Fraser Wild, Vivienne Asari, Natalia Vale |
| author_facet | Boardman, Nicholas Fraser Wild, Vivienne Asari, Natalia Vale |
| contents | We report a significantly tighter trend between gaseous N/O and $M_*/R_e$ (a proxy for gravitational potential) than has previously been reported between gaseous metallicity and $M_*/R_e$, for star-forming galaxies in the MaNGA survey. We argue this result to be a consequence of deeper potential wells conferring greater resistance to metal outflows while also being associated with earlier star-formation histories, combined with N/O being comparatively unaffected by metal-poor inflows. The potential-N/O relation thus appears to be both more resistant to short-timescale baryonic processes and also more reflective of a galaxy's chemical evolution state, when compared to previously-considered relations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_17945 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A tight N/O-potential relation in star-forming galaxies Boardman, Nicholas Fraser Wild, Vivienne Asari, Natalia Vale Astrophysics of Galaxies We report a significantly tighter trend between gaseous N/O and $M_*/R_e$ (a proxy for gravitational potential) than has previously been reported between gaseous metallicity and $M_*/R_e$, for star-forming galaxies in the MaNGA survey. We argue this result to be a consequence of deeper potential wells conferring greater resistance to metal outflows while also being associated with earlier star-formation histories, combined with N/O being comparatively unaffected by metal-poor inflows. The potential-N/O relation thus appears to be both more resistant to short-timescale baryonic processes and also more reflective of a galaxy's chemical evolution state, when compared to previously-considered relations. |
| title | A tight N/O-potential relation in star-forming galaxies |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2407.17945 |