Galaxy rotation curves via conformal factors
Abstract We propose a new formula to explain circular velocity profiles of spiral galaxies obtained from the Starobinsky model in the Palatini formalism. It is based on the assumption that the gravity can be described by two conformally related metrics: one of them is responsible for the measurement...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-04-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-5792-2 |
| _version_ | 1818845864797405184 |
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| author | Ciprian A. Sporea Andrzej Borowiec Aneta Wojnar |
| author_facet | Ciprian A. Sporea Andrzej Borowiec Aneta Wojnar |
| author_sort | Ciprian A. Sporea |
| collection | DOAJ |
| description | Abstract We propose a new formula to explain circular velocity profiles of spiral galaxies obtained from the Starobinsky model in the Palatini formalism. It is based on the assumption that the gravity can be described by two conformally related metrics: one of them is responsible for the measurement of distances, while the other, the so-called dark metric, is responsible for a geodesic equation and therefore can be used for the description of the velocity profile. The formula is tested against a subset of galaxies taken from the HI Nearby Galaxy Survey (THINGS). |
| first_indexed | 2024-12-19T05:36:26Z |
| format | Article |
| id | doaj.art-a6d19ed2ce4442b2b36d0ba813a2c36a |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-19T05:36:26Z |
| publishDate | 2018-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-a6d19ed2ce4442b2b36d0ba813a2c36a2022-12-21T20:34:08ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-04-017841710.1140/epjc/s10052-018-5792-2Galaxy rotation curves via conformal factorsCiprian A. Sporea0Andrzej Borowiec1Aneta Wojnar2West University of TimişoaraInstitute for Theoretical PhysicsInstitute of Physics, Maria Curie-Sklodowska UniversityAbstract We propose a new formula to explain circular velocity profiles of spiral galaxies obtained from the Starobinsky model in the Palatini formalism. It is based on the assumption that the gravity can be described by two conformally related metrics: one of them is responsible for the measurement of distances, while the other, the so-called dark metric, is responsible for a geodesic equation and therefore can be used for the description of the velocity profile. The formula is tested against a subset of galaxies taken from the HI Nearby Galaxy Survey (THINGS).http://link.springer.com/article/10.1140/epjc/s10052-018-5792-2 |
| spellingShingle | Ciprian A. Sporea Andrzej Borowiec Aneta Wojnar Galaxy rotation curves via conformal factors European Physical Journal C: Particles and Fields |
| title | Galaxy rotation curves via conformal factors |
| title_full | Galaxy rotation curves via conformal factors |
| title_fullStr | Galaxy rotation curves via conformal factors |
| title_full_unstemmed | Galaxy rotation curves via conformal factors |
| title_short | Galaxy rotation curves via conformal factors |
| title_sort | galaxy rotation curves via conformal factors |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-5792-2 |
| work_keys_str_mv | AT ciprianasporea galaxyrotationcurvesviaconformalfactors AT andrzejborowiec galaxyrotationcurvesviaconformalfactors AT anetawojnar galaxyrotationcurvesviaconformalfactors |