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...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2023
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| In: |
Monthly notices of the Royal Astronomical Society
Year: 2023, Volume: 518, Issue: 2, Pages: 2712-2718 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stac3184 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/stac3184
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| Author Notes: | Walter Dehnen, Marcin Semczuk and Ralph Schönrich |
| Summary: | 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. |
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| Item Description: | Gesehen am 18.10.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stac3184 |