Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New Results
The so-called 𝑓(𝑅)-gravity has recently attracted a lot of interest since it could be, in principle, able to explain the accelerated expansion of the Universe without adding unknown forms of dark energy/dark matter but, more simply, extending the General Relativity by generic functions of the Ricci...
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doaj-509a2b3b9ec44fc9be3b3d4b3f46d2fa2020-11-24T23:10:43ZengHindawi LimitedAdvances in Astronomy1687-79691687-79772009-01-01200910.1155/2009/217420217420Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New ResultsSalvatore Capozziello0Vincenzo Salzano1Dipartimento di Scienze Fisiche, Università degli Studi di Napoli “Federico II” and INFN, Sezione di Napoli, Complesso Universitario di Monte S. Angelo, Ed. N, via Cinthia, 80126 Napoli, ItalyDipartimento di Scienze Fisiche, Università degli Studi di Napoli “Federico II” and INFN, Sezione di Napoli, Complesso Universitario di Monte S. Angelo, Ed. N, via Cinthia, 80126 Napoli, ItalyThe so-called 𝑓(𝑅)-gravity has recently attracted a lot of interest since it could be, in principle, able to explain the accelerated expansion of the Universe without adding unknown forms of dark energy/dark matter but, more simply, extending the General Relativity by generic functions of the Ricci scalar. However, apart several phenomenological models, there is no final 𝑓(𝑅)-theory capable of fitting all the observations and addressing all the issues related to the presence of dark energy and dark matter. An alternative approach could be to “reconstruct” the form of 𝑓(𝑅) starting from data without imposing particular classes of model. Besides, adopting the same philosophy, we take into account the possibility that galaxy cluster masses, estimated at X-ray wavelengths, could be explained, without dark matter, reconstructing the weak-field limit of analytic 𝑓(𝑅) models. The corrected gravitational potential, obtained in this approximation, is used to estimate the total mass of a sample of 12 well-shaped clusters of galaxies.http://dx.doi.org/10.1155/2009/217420 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Salvatore Capozziello Vincenzo Salzano |
spellingShingle |
Salvatore Capozziello Vincenzo Salzano Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New Results Advances in Astronomy |
author_facet |
Salvatore Capozziello Vincenzo Salzano |
author_sort |
Salvatore Capozziello |
title |
Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New Results |
title_short |
Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New Results |
title_full |
Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New Results |
title_fullStr |
Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New Results |
title_full_unstemmed |
Cosmography and Large Scale Structure by 𝑓(𝑅)-Gravity: New Results |
title_sort |
cosmography and large scale structure by 𝑓(𝑅)-gravity: new results |
publisher |
Hindawi Limited |
series |
Advances in Astronomy |
issn |
1687-7969 1687-7977 |
publishDate |
2009-01-01 |
description |
The so-called 𝑓(𝑅)-gravity has recently attracted a lot of interest since it could be, in principle, able to explain the accelerated expansion of the Universe without adding unknown forms of dark energy/dark matter but, more simply, extending the General Relativity by generic functions of the Ricci scalar. However, apart several phenomenological models, there is no final 𝑓(𝑅)-theory capable of fitting all the observations and addressing all the issues related to the presence of dark energy and dark matter. An alternative approach could be to “reconstruct” the form of 𝑓(𝑅) starting from data without imposing particular classes of model. Besides, adopting the same philosophy, we take into
account the possibility that galaxy cluster masses, estimated at X-ray wavelengths, could be explained, without dark matter, reconstructing the weak-field limit of analytic 𝑓(𝑅) models. The
corrected gravitational potential, obtained in this approximation, is used to estimate the total mass of
a sample of 12 well-shaped clusters of galaxies. |
url |
http://dx.doi.org/10.1155/2009/217420 |
work_keys_str_mv |
AT salvatorecapozziello cosmographyandlargescalestructurebyfrgravitynewresults AT vincenzosalzano cosmographyandlargescalestructurebyfrgravitynewresults |
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1725605982610915328 |