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| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.provenance | Universidad Nacional de Río Negro | - |
| dc.creator | Orellana, Mariana D. | - |
| dc.creator | García, Federico | - |
| dc.creator | Teppa Pannia, Florencia A. | - |
| dc.creator | Romero, Gustavo E. | - |
| dc.date | 2013-06-22 | - |
| dc.date.accessioned | 2020-02-11T14:09:29Z | - |
| dc.date.available | 2020-02-11T14:09:29Z | - |
| dc.date.issued | 2013-06-22 | - |
| dc.identifier | Orellana, Mariana D., García, Federico., Teppa Pannia, Florencia A. & Romero, Gustavo E. (2013). Structure of neutron stars in R-squared gravity. Springer; General Relativity And Gravitation; 45; 4; 771-783 | - |
| dc.identifier | 0001-7701 | - |
| dc.identifier | http://link.springer.com/article/10.1007%2Fs10714-013-1501-5 | - |
| dc.identifier | http://arxiv.org/abs/1301.5189 | - |
| dc.identifier | https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2831 | - |
| dc.identifier | http://dx.doi.org/10.1007/s10714-013-1501-5 | - |
| dc.identifier.uri | http://rodna.bn.gov.ar/jspui/handle/bnmm/575891 | - |
| dc.description | Fil: Orellana, Mariana D. Universidad Nacional de Río Negro; Argentina | - |
| dc.description | Fil: Orellana, Mariana D. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina | - |
| dc.description | Fil: Orellana, Mariana D. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. | - |
| dc.description | Fil: Orellana, Mariana D. Instituto Argentino de Radioastronomia; Argentina | - |
| dc.description | Fil: García, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata; Argentina | - |
| dc.description | Fil: García, Federico. Instituto Argentino de Radioastronomia; Argentina. | - |
| dc.description | Fil: García, Federico. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina | - |
| dc.description | Fil: Teppa Pannia, Florencia A. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina | - |
| dc.description | Fil: Romero, Gustavo E. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata; Argentina | - |
| dc.description | Fil: Romero, Gustavo E. Instituto Argentino de Radioastronomia; Argentina. | - |
| dc.description | Fil: Romero, Gustavo E. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina | - |
| dc.description | The effects implied for the structure of compact objects by the modification of General Relativity produced by the generalization of the Lagrangian density to the form R plus alpha R-squared, where R is the Ricci curvature scalar, have been recently explored. It seems likely that this squared-gravity may allow heavier Neutron Stars (NSs) than GR. In addition, these objects can be useful to constrain free parameters of modified-gravity theories. The differences between alternative gravity theories is enhanced in the strong gravitational regime. In this regime, because of the complexity of the field equations, perturbative methods become a good choice to treat the problem. Following previous works in the field, we performed a numerical integration of the structure equations that describe NSs in f(R)-gravity, recovering their mass-radius relations, but focusing on particular features that arise from this approach in the profiles of the NS interior.We show that these profiles run in correlation with the second-order derivative of the analytic approximation to the Equation of State (EoS), which leads to regions where the enclosed mass decreases with the radius in a counter-intuitive way. We reproduce all computations with a simple polytropic EoS to separate zeroth-order modified gravity effects. | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Springer | - |
| dc.relation | 45 | - |
| dc.relation | General Relativity And Gravitation | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/4.0/ | - |
| dc.source | reponame:RID-UNRN (UNRN) | - |
| dc.source | instname:Universidad Nacional de Río Negro | - |
| dc.source | instacron:UNRN | - |
| dc.source.uri | http://dx.doi.org/10.1007/s10714-013-1501-5 | - |
| dc.subject | Modified Gravity | - |
| dc.subject | Neutron Stars | - |
| dc.subject | Generalised Gravity Equation | - |
| dc.subject | .::Ciencias Exactas y Naturales::Ciencias Físicas | - |
| dc.title | Structure of neutron stars in R-squared gravity | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/acceptedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| dc.about | - | |
| Aparece en las colecciones: | Universidad Nacional de Río Negro | |
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