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DC Field | Value | Language |
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dc.contributor.author | Finch, Andrew | - |
dc.contributor.author | Said, Jackson | - |
dc.date.accessioned | 2022-02-17T08:25:55Z | - |
dc.date.available | 2022-02-17T08:25:55Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Finch, A., & Said, J. L. (2018). Galactic rotation dynamics in f (T) gravity. The European Physical Journal C, 78(7), 1-18. | en_GB |
dc.identifier.uri | https://www.um.edu.mt/library/oar/handle/123456789/89307 | - |
dc.description.abstract | We investigate galactic rotation curves in f(T) gravity, where T represents a torsional quantity. Our study centers on the particular Lagrangian f(T)=T+αTn f(T)=T+αTn , where |n|≠1 |n|≠1 and α α is a small unknown constant. To do this we treat galactic rotation curves as being composed from two distinct features of galaxies, namely the disk and the bulge. This process is carried out for several values of the index n. The resulting curve is then compared with Milky Way profile data to constrain the value of the index n while fitting for the parameter α α . These values are then further tested on three other galaxies with different morphologies. On the galactic scale we find that f(T) gravity departs from standard Newtonian theory in an important way. For a small range of values of n we find good agreement with data without the need for exotic matter components to be introduced. | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | Springer | en_GB |
dc.rights | info:eu-repo/semantics/openAccess | en_GB |
dc.subject | Cosmic rotation | en_GB |
dc.subject | General relativity (Physics) | en_GB |
dc.subject | Lagrange equations | en_GB |
dc.subject | Milky Way | en_GB |
dc.subject | Galactic bulges | en_GB |
dc.title | Galactic rotation dynamics in f (T) gravity | en_GB |
dc.type | article | en_GB |
dc.rights.holder | The copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder. | en_GB |
dc.description.reviewed | peer-reviewed | en_GB |
dc.identifier.doi | 10.1140/epjc/s10052-018-6028-1 | - |
dc.publication.title | The European Physical Journal C | en_GB |
Appears in Collections: | Scholarly Works - InsSSA |
Files in This Item:
File | Description | Size | Format | |
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Galactic_rotation_dynamics_in_f_T_gravity_2018.pdf | 2.65 MB | Adobe PDF | View/Open |
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