Potential-density pairs for galaxy discs with exponential or sech$^2$ vertical profile
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909454911406080 |
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| author | Dehnen, Walter Jafaritabar, Shera |
| author_facet | Dehnen, Walter Jafaritabar, Shera |
| contents | We present axially symmetric analytical potential-density pairs with surface density similar to the Miyamoto-Nagai model, but with more realistic vertical structure. Our models closely approximate an exponential, a sech$^2$, or a cored exponential vertical density profile. The latter profile has a density core of adjustable width, which provides more flexibility when modelling galaxy discs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_05916 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Potential-density pairs for galaxy discs with exponential or sech$^2$ vertical profile Dehnen, Walter Jafaritabar, Shera Astrophysics of Galaxies We present axially symmetric analytical potential-density pairs with surface density similar to the Miyamoto-Nagai model, but with more realistic vertical structure. Our models closely approximate an exponential, a sech$^2$, or a cored exponential vertical density profile. The latter profile has a density core of adjustable width, which provides more flexibility when modelling galaxy discs. |
| title | Potential-density pairs for galaxy discs with exponential or sech$^2$ vertical profile |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2501.05916 |