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2025
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| Online Access: | https://doi.org/10.5281/zenodo.15072655 |
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| _version_ | 1866902163723124736 |
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| author | Thavarajah, Rogan |
| author_facet | Thavarajah, Rogan |
| contents | <p>This paper presents detailed predictions for <strong>bar strengthening and weakening cycles</strong> in spiral galaxies, derived from coherence-dark coherence resonance dynamics. Bars form at low-frequency resonance nodes and undergo periodic oscillations due to energy exchange between coherence fields.</p> <p>The study calculates precise <strong>bar oscillation periods</strong> for the Milky Way (<strong>251 Myr</strong>), NGC 1300 (<strong>232 Myr</strong>), and NGC 1365 (<strong>209 Myr</strong>), with deviations from observed cycles consistently <strong><7%</strong>. These coherence-driven cycles explain time-dependent variations in bar intensity, aligning with kinematic models and observational data.</p> <p>Additionally, the model forecasts <strong>long-term bar weakening trends</strong> over gigayear timescales and identifies specific timeframes for <strong>future phase shifts</strong>. These predictions are ideal for validation via <strong>ALMA gas flow mapping</strong>, <strong>Vera Rubin time-series surveys</strong>, and <strong>radio kinematic observations</strong>.</p> <p>This work establishes a <strong>predictive, dynamic model for bar evolution</strong>, offering a novel alternative to static bar formation theories and providing falsifiable forecasts for galactic bar dynamics.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_15072655 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Coherence Based Model Predictions for Galactic Bar Oscillation Dynamics Thavarajah, Rogan <p>This paper presents detailed predictions for <strong>bar strengthening and weakening cycles</strong> in spiral galaxies, derived from coherence-dark coherence resonance dynamics. Bars form at low-frequency resonance nodes and undergo periodic oscillations due to energy exchange between coherence fields.</p> <p>The study calculates precise <strong>bar oscillation periods</strong> for the Milky Way (<strong>251 Myr</strong>), NGC 1300 (<strong>232 Myr</strong>), and NGC 1365 (<strong>209 Myr</strong>), with deviations from observed cycles consistently <strong><7%</strong>. These coherence-driven cycles explain time-dependent variations in bar intensity, aligning with kinematic models and observational data.</p> <p>Additionally, the model forecasts <strong>long-term bar weakening trends</strong> over gigayear timescales and identifies specific timeframes for <strong>future phase shifts</strong>. These predictions are ideal for validation via <strong>ALMA gas flow mapping</strong>, <strong>Vera Rubin time-series surveys</strong>, and <strong>radio kinematic observations</strong>.</p> <p>This work establishes a <strong>predictive, dynamic model for bar evolution</strong>, offering a novel alternative to static bar formation theories and providing falsifiable forecasts for galactic bar dynamics.</p> |
| title | Coherence Based Model Predictions for Galactic Bar Oscillation Dynamics |
| url | https://doi.org/10.5281/zenodo.15072655 |