Measuring bar pattern speeds from single simulation snapshots
We describe methods to measure simultaneously the orientation angle ψ and pattern speed Ω from single snapshots of simulated barred galaxies. Unlike previous attempts, our approach is unbiased, precise, and consistent in the sense that ψ = ∫ dt. It can be extended to obtain the rate and axis of rot...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2023
|
| In: |
Monthly notices of the Royal Astronomical Society
Year: 2023, Jahrgang: 518, Heft: 2, Pages: 2712-2718 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stac3184 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/stac3184
|
| Verfasserangaben: | Walter Dehnen, Marcin Semczuk and Ralph Schönrich |
| Zusammenfassung: | We describe methods to measure simultaneously the orientation angle ψ and pattern speed Ω from single snapshots of simulated barred galaxies. Unlike previous attempts, our approach is unbiased, precise, and consistent in the sense that ψ = ∫ dt. It can be extended to obtain the rate and axis of rotation, i.e. the vector Ω. We provide computer code implementing our method. |
|---|---|
| Beschreibung: | Gesehen am 18.10.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stac3184 |