Zobrazeno 1 - 10
of 25
pro vyhledávání: '"F. C. Ragel"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 1, Pp 1-11 (2020)
Abstract We study Einstein’s field equations to describe static spherically symmetric relativistic compact objects with anisotropic matter distribution, and generate two classes of exact solutions by choosing a generalized form for one of the gravi
Externí odkaz:
https://doaj.org/article/ddbc5529414a4771b4957493b24338d9
Autor:
F. C. Ragel, S. Thirukkanesh
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 4, Pp 1-6 (2019)
Abstract We generate a general frame work to solve the Einstein system with an equation of state that describe static spherically symmetric anisotropic matter distribution in terms of a generating function. It is examined for a Van der Waals type equ
Externí odkaz:
https://doaj.org/article/047cad85a7204e05a0473863e163d7e6
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 1, Pp 1-9 (2018)
Abstract We present an algorithm to generalize a plethora of well-known solutions to Einstein field equations describing spherically symmetric relativistic fluid spheres by relaxing the pressure isotropy condition on the system. By suitably fixing th
Externí odkaz:
https://doaj.org/article/815cea031a17411ebf9fcaa22c307829
Publikováno v:
The European Physical Journal Plus. 136
We model anisotropic compact stars by solving Einstein field equation with a generalized form of equation of state (EoS) and a physically reasonable metric potential $$g_{rr}$$ which allows us to extract models with various type of EoSs such as linea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e88678d666e533f0ab225a37f4fb537a
https://doi.org/10.1140/epjp/s13360-021-01118-3
https://doi.org/10.1140/epjp/s13360-021-01118-3
Autor:
S. Thirukkanesh, F. C. Ragel
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 79, Iss 4, Pp 1-6 (2019)
European Physical Journal C: Particles and Fields, Vol 79, Iss 4, Pp 1-6 (2019)
We generate a general frame work to solve the Einstein system with an equation of state that describe static spherically symmetric anisotropic matter distribution in terms of a generating function. It is examined for a Van der Waals type equation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0192963e7f361d67281dc13b49fa4ce0
https://doi.org/10.1140/epjc/s10052-019-6804-6
https://doi.org/10.1140/epjc/s10052-019-6804-6
Publikováno v:
European Physical Journal C
European Physical Journal C: Particles and Fields, Vol 78, Iss 1, Pp 1-9 (2018)
European Physical Journal C: Particles and Fields, Vol 78, Iss 1, Pp 1-9 (2018)
We present an algorithm to generalize a plethora of well-known solutions to Einstein field equations describing spherically symmetric relativistic fluid spheres by relaxing the pressure isotropy condition on the system. By suitably fixing the model p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa473569256993e48b2b6d319c9d6adc
https://doi.org/10.1140/epjc/s10052-018-5526-5
https://doi.org/10.1140/epjc/s10052-018-5526-5
Autor:
S. Thirukkanesh, F. C. Ragel
Publikováno v:
Pramana. 83:83-93
We study static spherically symmetric space-time to describe relativistic compact objects with anisotropic matter distribution and derive two classes of exact models to the Einstein–Maxwell system with a modified Van der Waals equation of state. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::147e47007df09cf1a0df4f7818179283
https://doi.org/10.1007/s12043-014-0766-x
https://doi.org/10.1007/s12043-014-0766-x
Autor:
S. Thirukkanesh, F. C. Ragel
Publikováno v:
Astrophysics and Space Science. 352:743-749
We report a general solution in one of the gravitational potentials to the Einstein system in static spherically symmetric spacetime, modeling anisotropic strange quark matter by imposing a linear barotropic equation of state. The model generated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::027bb1988bd273bf789ea027e4e7d949
https://doi.org/10.1007/s10509-014-1960-5
https://doi.org/10.1007/s10509-014-1960-5
Autor:
S. Thirukkanesh, F. C. Ragel
Publikováno v:
Astrophysics and Space Science. 354:415-420
We formulate a system of field equations with Van der Waals type equation of state to the Einstein field equations in spherically symmetric static spacetime to describe anisotropic compact matter and obtain a new class of solution by choosing one of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::765ad72d10a809a6b9f3897261fac8ed
https://doi.org/10.1007/s10509-014-1883-1
https://doi.org/10.1007/s10509-014-1883-1
Publikováno v:
Journal of Science. 10:15
This research paper describes the synthesis of a series of Y-based superconducting alloys doped with Ag oxide. The Y3Ba5Cu8–xAgxO18–d superconducting alloys were synthesized by Gholipour et al. (2012), Tavana et al. (2010) and Khosroabadi et al.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2de3501e0c1e01a11ff293dc0c065ca
https://doi.org/10.4038/jsc.v10i1.18
https://doi.org/10.4038/jsc.v10i1.18