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Participant |
Magalhaes, Nadja | |||||||
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Institution |
Federal University of Sao Paulo - Rua Sao Nicolau 210 - Diadema - Sao Paulo - Brazil | |||||||
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Session |
DM4 |
Accepted |
Yes |
Order |
12 |
Time |
18:05 | 15' |
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Talk |
Oral abstract |
Title |
Galactic mapping using general relativity and observational rotation curves | |||||
| Coauthors | Magalhaes, Nadja S.; Cooperstock, Fred I. | |||||||
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Abstract |
We employed general relativity successfully to describe the galactic velocity profiles. In this talk we present a mapping of the density contours of galaxies, achieving good concordance with observational data. In our Solar neighbourhood, we found a mass density and density fall-off fitting observational data satisfactorily. Galactic masses are consistently seen to be lower than those deduced from the approaches relying upon dark matter. Our results indicate that GR is the key to explainaining the stars' high velocities in galaxies. Mapping galactic density contours directly from the dynamics opens a new window for predicting galactic structure. |
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Pdf file |
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