Quasi Periodic Oscillations (QPOs) and frequencies in an accretion disk and comparison with the numerical results from non-rotating black hole computed by the GRH code

The shocked wave created on the accretion disk after different physical phenomena (accretion flows with pressure gradients, star-disk interaction etc.) may be responsible observed Quasi Periodic Oscillations (QPOs) in $X-$ray binaries. We present the set of characteristics frequencies associated with accretion disk around the rotating and non-rotating black holes for one particle case. These persistent frequencies are results of the rotating pattern in an accretion disk. We compare the frequency's from two different numerical results for fluid flow around the non-rotating black hole with one particle case. The numerical results are taken from our papers Refs.\refcite{Donmez2} and \refcite{Donmez3} using fully general relativistic hydrodynamical code with non-selfgravitating disk. While the first numerical result has a relativistic tori around the black hole, the second one includes one-armed spiral shock wave produced from star-disk interaction. Some physical modes presented in the QPOs can be excited in numerical simulation of relativistic tori and spiral waves on the accretion disk. The results of these different dynamical structures on the accretion disk responsible for QPOs are discussed in detail.Comment: 13 figures, added reference, accepted for publication in Modern Physics Letters

A multiparadigm approach to interpretation in architecture: exploring ideological meaning in political party headquarters

The attempts to make sense of the built environment are conceptualised within various disciplines also including linguistics and literature. Current theories in literary criticism support different movements in meaning studies. This paper proposes a multiparadigm approach for interpreting and knowing in architecture by employing disparate theoretical perspectives of literary criticism. The research intends to encompass intentionalist, structuralist and post-structuralist paradigms, where the textual meaning is questioned on the basis of the author, the text itself and the reader respectively. The first part elaborates on these major paradigms of literature and then provides extensive review in architectural studies

New palladium(II) and platinum(II) 5,5-diethylbarbiturate complexes with 2-phenylpyridine, 2,2’-bipyridine and 2,2’-dipyridylamine : synthesis, structures, DNA binding, molecular docking, cellular uptake, antioxidant activity and cytotoxicity

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