ஆஸ்ட்ரோபிசிக்ஸ் & ஏரோஸ்பேஸ் டெக்னாலஜி

This paper discusses about the theoretical “non-requirement” of dark matter, or in other words, there is no missing mass in galaxies. A singularity free and collision free n-body problem solution called dynamic universe model was used to find out the theoretical star circular velocity curves in a galaxy. Here five cases are presented. In the first case a HUGE mass at the center of galaxy, sun like stars and external galaxies are assumed, when plotted, the graph of last iteration shows disk formation and velocities achieved. This circular velocities verses radius graph looks exactly similar to observations by astronomers. In all the other cases, either the central mass is missing or external galaxies are missing or both are missing where resulting graphs look different. It can be inferred that the theoretical requirement of dark matter is calculation error, that no dark matter (missing mass) is required according to dynamic universe model. This prediction was first presented in Tokyo University in 2005. Later the findings from LUX in 2013 the (Large Underground Xenon) experiment confirmed this prediction. This new Tensor math in dynamic universe model was used for solving a large variety of physical problems which are otherwise not possible with present day physics. This method solved many unsolved problems earlier like existence of blue shifted galaxies galaxy disk formations, missing mass in galaxies, pioneer anomaly, non-collapsing large scale mass structures and new horizons trajectory predictions etc. AMS subject classifications: 70F10 (n-body problems), 70F15 (celestial mechanics), 70E55 (dynamics of multi body systems) 70-05 (experimental work) 70-08 (computational methods).

This editorial is about notion of a similarity between gods and dimension. A step to understand who are they and why they exist. This editorial will let you understand, how to reach for perceiving the gods. Gods are somewhat dimensionless characters which exist but we can’t see with our naked eyes. So let us begin our notion to perceive what gods are. It is an acute war between religion and science of understanding the extraordinary concept of gods. On the behalf of religion Gods are nothing but a pure soul from heaven who helps us in need. What if the science proves that the gods are the images of higher dimensions which we’re not able to conceive due to alien to the dimensions known to us? It is our firm belief that gods are soul and we can’t see them, but if what this proves wrong anytime? We need to clinch a step forward in order to say these things as they are sounding very nonsensical.

In relativity theory there are two versions of time dilation: symmetric and asymmetric. In the first case, it is assumed that a moving clock always runs slower than the observer's local clock, so it is just a matter of perspective which of two clocks runs faster. By contrast, asymmetric time dilation assumes that if two clocks are running at different rates, one of them is unambiguously slower. The Lorentz transformation (LT) of Einstein's special theory of relativity (STR) predicts that only symmetric time dilation occurs in nature. However, experimental studies of the rates of atomic clocks on airplanes, as well as of the second-order Doppler effect using high-speed rotors, find that time dilation is exclusively asymmetric, in clear contradiction to the LT. In the present work, it is shown that there is another space-time transformation that also satisfies Einstein's two postulates of relativity, but one which assumes that clock rates in different rest frames are strictly proportional to one another. It is therefore in complete agreement with the results of the above time-dilation experiments and also with the clock-rate adjustment procedure applied to satellite clocks in the methodology of the Global Positioning System; hence the designation GPS-LT for this alternative space-time transformation. Unlike the original LT, the GPS-LT is consistent with the absolute remote simultaneity of events, and it eliminates the necessity of assuming that space and time are inextricably mixed. It also disagrees with the FitzGerald-Lorenz length-contraction prediction of STR, finding instead that isotropic length expansion always accompanies time dilation in a given rest frame. The results of the Ives-Stilwell study of the transverse Doppler effect and also those of experiments with accelerated muons are shown to be in complete agreenment with the latter conclusion.

The non-linear electrodynamics-based approach to a minimum time length, and the axionic Dark Matter (DM) and the gravitonic Dark Energy (DE) are presented in this paper. We approach the DM contribution to the entropy of Universe throughout the Ng quantum infinite statistics, while to obtain a comparative study between entropy in galaxies and entropy of the Universe we analyse the DE in the light of Mishra's quantum formulation of the Big Bang. In result, we receive a non-trivial approach to the initial singularities in the Early Universe cosmology.

The ground state energy and wave function of the single band hubbard model on the one dimensional lattice is computed using the Lanczos methods. It is shown that the ground state energies obtained for different values of the interaction strength it, compare nicely with that obtained using the method of exact calculation.

The charging and discharging induced by application of high voltage solar arrays were attracting increasing attentions recently. In this paper the associated models and tests conducted recently are introduced. For the rapid charging observed on International Space Station recently, a model is developed based on Ferguson et al.’s theory and gives satisfactory calculations consistent with the observations. It shows that the rapid charging events are driven by the abrupt increase of the panel voltage at eclipse exit, and also due to the fact that the charging of the cover glasses by the ambient plasma can’t response quickly enough to choke off the electron collection of the solar panel, as a result the structure is rapidly charged to a significant potential within a few seconds. The rapid charging is a type of non-equilibrium charging phenomena and will display normal charging when evolving to equilibrium. In the other hand, the discharges induced by high voltage solar arrays generally occur at triple junction in the presence of an inverted potential gradient from the metal to the dielectric. When a primary arc occurs at solar cell string gaps with high string voltage it will induce secondary arc. Both primary and secondary arc thresholds depend on solar array configurations. We tested the dependence through tests and found that application of wide cell gaps and RTV adhesives help to increase the thresholds for both primary and secondary arcs. But for secondary arc, application of RTV adhesives tends to result in more significant permanent sustained arcs although it postpones the arc occurrence.

Tsiganok gravitation law was discovered, Tsiganok gravitation theory was worked out. The definitions of body weight and body mass and density (specific gravity) were given. The definitions of gravitational constant were found and gravity acceleration constant of of a body were found and defined. The weight, the mass, the gravity acceleration, the average density (specific gravity) and other parameters of the Earth, the Sun, the Moon etc. were defined. Body parameters in various points of the Universe were found. The Earth, the Sun, the Moon and other bodies were weighed in the state of weightlessness without scales. The centrifugal forces of the Earth, the Moon, and other bodies were found. The formula of the second law of motion was made more precise. The forces of gravitation between the Sun and the Earth and also between the Earth and the Moon were determined. The existence of the so–called Pioneer anomaly wasn’t confirmed either theoretically or experimentally. The validity of centrifugal force formula, Tsiganok gravitation law as well as TGT were confirmed both theoretically and experimentally.