Rotation Curve Fitting Model
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2023
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866916372227817472 |
|---|---|
| author | Cisneros, Sophia Natalia Ott, Richard Crowley, Meagan Roberts, Amy Paz, Marcus Brown, Zaneeyiah Joyal, Landon Rico, Roberto Real Gutierrez-Gutierrez, Elizabeth Pham, Phong Holland, Zac Livingston, Amanda Castrellon, Lily Graham, Summer Rubin, Shanon J. Ashleya, Aaron Battaglia, Dillon Lopez, Daniel Salwa, Maya |
| author_facet | Cisneros, Sophia Natalia Ott, Richard Crowley, Meagan Roberts, Amy Paz, Marcus Brown, Zaneeyiah Joyal, Landon Rico, Roberto Real Gutierrez-Gutierrez, Elizabeth Pham, Phong Holland, Zac Livingston, Amanda Castrellon, Lily Graham, Summer Rubin, Shanon J. Ashleya, Aaron Battaglia, Dillon Lopez, Daniel Salwa, Maya |
| contents | One key piece of evidence for dark matter is the flat rotation curve problem: the disagreement between measured galactic rotation curves and their luminous mass. A novel solution to this problem is presented here. A model of relativistic frame effects on Doppler shifts due to the slightly curved frames of an emitting galaxy and the Milky Way is derived. This model predicts observed Doppler shifted spectra (in excess of the luminous mass) based only on the observed luminous matter profile and one free model parameter. Fits to the 175 galaxies reported in the SPARC database of galactic rotation profiles and accurate photometry measurements are compared between this novel model and dark matter and MOND (RAR) models. We find on the SPARC sample of 175 galaxies; that MOND-RAR has an average reduced chisquare of $χ^2_r = 4.22$ for 175 galaxies fitted, the isothermal dark matter model has $χ^2_r = 1.90$ for 165 galaxies fitted, and the new model we present has $χ^2_r = 2.39$ for 172 galaxies fitted. Implications of this model are discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_04372 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Rotation Curve Fitting Model Cisneros, Sophia Natalia Ott, Richard Crowley, Meagan Roberts, Amy Paz, Marcus Brown, Zaneeyiah Joyal, Landon Rico, Roberto Real Gutierrez-Gutierrez, Elizabeth Pham, Phong Holland, Zac Livingston, Amanda Castrellon, Lily Graham, Summer Rubin, Shanon J. Ashleya, Aaron Battaglia, Dillon Lopez, Daniel Salwa, Maya Astrophysics of Galaxies General Relativity and Quantum Cosmology One key piece of evidence for dark matter is the flat rotation curve problem: the disagreement between measured galactic rotation curves and their luminous mass. A novel solution to this problem is presented here. A model of relativistic frame effects on Doppler shifts due to the slightly curved frames of an emitting galaxy and the Milky Way is derived. This model predicts observed Doppler shifted spectra (in excess of the luminous mass) based only on the observed luminous matter profile and one free model parameter. Fits to the 175 galaxies reported in the SPARC database of galactic rotation profiles and accurate photometry measurements are compared between this novel model and dark matter and MOND (RAR) models. We find on the SPARC sample of 175 galaxies; that MOND-RAR has an average reduced chisquare of $χ^2_r = 4.22$ for 175 galaxies fitted, the isothermal dark matter model has $χ^2_r = 1.90$ for 165 galaxies fitted, and the new model we present has $χ^2_r = 2.39$ for 172 galaxies fitted. Implications of this model are discussed. |
| title | Rotation Curve Fitting Model |
| topic | Astrophysics of Galaxies General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2310.04372 |