Monday, February 25, 2008

Additional Long Range Gravity Force

One of the well known astrophysicists has stated that the theory of dipole gravity is confusing when it comes to the explanation of the relativistic jets. The theory itself is not difficult but what makes it confusing may be that the same terminology and similar concept has to be used to explain the mechanisms of the theory. One can not build a new house without demolishing the ragged old one at the same place. Largely this is in the minds of the people in the field than the actual physical construction. So, here is a more concise description of what it is.

The fundamental difference between the theory of dipole gravity and other astrophysical theories of the relativistic jets(plasma and magnetic field caused), MOND and the dark matter hypothesis is that, dipole gravity is a theory derived from the first principle. In fact, the jets and dark matter problem were not in immediate consideration when the theory of dipole gravity was conceived. Of course, the reason behind the perception of the need for such a theory has been constantly in the back ground because of the inadequacies of the physical mechanisms behind those theories.

It all started from the fundamental physical anomaly observed from the simple mechanical system of the rotating hemisphere when special relativity was incorporated into the calculation of the center of mass. Consider this, why and how the center of mass of a hemisphere changes when it is in rotational motion even when there is no external force(in the direction of the shift) applied to it. And why this is not the case for the rotating sphere?

Newtonian mechanics states that an object should be at rest unless an external force is applied in the direction of the motion. Being at rest by definition means that the effective center of mass is in the same position relative to the entire distribution of the matter in the universe.

If the mass increase effect of special relativity is the real physical phenomenon and not some kind of an illusion, one can not avoid this anomaly of the center of mass shift from a rotating hemispherical system. It is a very real physical effect and it fundamentally challenges the conventionally known mechanics. It can mean many things. The rotating hemisphere(longitudinal axially asymmetric object) somehow may experience an external force which causes the shift of the center of mass. But the fundamental mystery of this system is that the shift of the center of mass moves along with the object itself. So it is possible that the system may be in a perpetual mode of acceleration.

Not surprisingly, it didn't take long to find out that the same mechanical system has been totally neglected in general relativity as well. The hitherto abandoned dipole term in the linearized theory of general relativity starts to have the real meaning because such a shift can not be transformed away. It is a real physical effect that depends on the energy in the system.

If we have a dipole gravitational moment in the two mass pole model universe, it will certainly be in a perpetual mode of acceleration until it reaches to one of the poles. The paper basically describes the effect of this force, but the real point of the paper was that it has justified the reality of the dipole gravitational moment which is the source of the additional long range gravity force which we have been missing in the entire history of mankind.

Now it is natural that we have to apply this fundamental force derived from the first principle to the hitherto unsolved(satisfactorily) cosmological problems. First of all, according to the dipole gravity potential from a rotating spherical object, the jets from the rotating black holes or neutron stars are totally natural and not surprising at all.

During the process of the application of dipole gravity to the dark matter problem, it has become clear that the sign of the Lense-Thirring force can not be consistent with the accretion phenomenon because the radial component of the Lense-Thirring force is repulsive(outgoing). The accretion and the jets can not be separated, and when the signs of Lense-Thirring force are corrected, everything(jets, accretions and flat rotation curves) starts to make perfect sense. The point source nature of the jets basically creates the 1/r dependent dark matter density distribution which is required to explain the flat rotational velocity curves.

So, the real physical nature of the dark matter is that it is a group of a constantly moving debris(pretty much like comets and asteroids) in the spiral galaxy following the dipole gravity force lines(from the poles to the equatorial center) that resembles the two superposed gravitomagnets around the rotating ultra compact stellar object. Since the dipole gravity force line is divergent at the poles and around the galactic sphere until they come together at the central accretion plane, the ejected matters can not be visible while they are in transit until they reach the rotational plane where the massive collisions among the debris occurs and generates visible radiation. Therefore, the luminosity close to the galactic nuclei may represent the strength of the jets and the density of the matters being recycled and this could be used as a valid parameter for the prediction of the flat rotation curves as they did in MOND.

In fact, the sources of the asteroids that bombarded the planets which left so many scars on their surfaces in the solar system can be explained if we assume that this kind of dark matters are pervasive in our galaxy as well.

Thursday, February 14, 2008

Dark Energy

Since the theory of dipole gravity has hinted that the gravity in general is a bulk effect rather than a quantum effect, the presence of the superluminal tachyonic particles in the background of the universe becomes a strongly favored concept.
One of the candidates of these particles are neutrinos which has been enforced by the fact that the measured mass squared value of the neutrinos has consistently been reported to be negative.

If neutrinos are also magnetic monopoles, the symmetry of EM is restored where the symmetry has been known to be broken by the fact that there is no isolated magnetic monopole detected in the universe. The concept is also strengthened by the fact that the electrons and antineutrinos are produced hand in hand when the neutrons are broken to pieces by beta decay.

The following consequence of this scenario is that the tachyonic magnetic monopoles, while traveling faster than the speed of light, will still exert forces among themselves in such a way that a certain part of the space is no more crowded than the other part of the universe. The net effect is the ever growing expansion of the universe.

The total energy content may be calculated by the number density of the tachyonic neutrinos in a volume of a cubic centimeter and the energy due to their mutual repulsive magnetic forces.

There can be questions on why there are more of the antineutrinos than the neutrinos in the universe. Where is this asymmetry coming from? It is possible that we are living in the universe where the configuration of the proton, electron, and the antineutrinos are predominant as the way we observe it, while there can be other universe right next to ours that is totally opposite of what we have. The universe next to us may have the negatively charged nucleus and the positrons orbiting the nuclei with the abundant neutrinos instead of the antineutrinos in its background of the universe.

Physicists like to look for symmetry, whenever there is a lack of symmetry in nature; we are suspicious of it and wonder why. Of course, dipole gravity was a part of an answer to such a quest because the rotating hemisphere breaks the symmetry of the center of mass from that of a rotating sphere by its anomalous relativistic shift.

I'm sure the superstring theorists are also in the same shoes in looking for the answer for the ultimate symmetry of the nature.


Tuesday, February 12, 2008

Accretion Disc

Within the Newtonian gravity only, it is hard to explain how the matter falls into the galactic nuclei without losing its angular momentum first. To explain this problem without invoking the additional long range gravity force, one has to introduce the friction and the hydrodynamic fluid equation as well as the concept of the plunge radius within which one has to assume that the matter falls into the nuclei without having the persistent rotational motion. In fact, the angular momentum is such a well conserved quantity that it is hard to get rid of it without a proper cause.

If we have an additional long range gravity force that depends on the function of 1/r^4 in the radial direction, the Virial theorem can not hold and the matter circling around the nuclei will not conserve the angular momentum and the orbit is not going to be closed.

The orbit of the matter circling around the galactic core with the additional long range dipole gravity force will become smaller and smaller with the increasing velocity until it plunges into the nuclei with a violent collision which may be the major cause of the observed gamma ray bursts. This also implies that the accretion debris is neither in a purely ionized plasma nor in the gaseous states.

By this way, the necessity of finding an alternative way to lose the angular momentum is totally unnecessary, let alone the assumption of the existence of the plunge radius. As discussed in the page black hole jet engine, the dipole gravity potential with its latitude angular dependency explains the mechanism on how the matter prefers to stay in the thin disk shaped region in the equatorial plane as well.

It is fundamentally caused by the lower dipole gravity potential formed around the equatorial plane due to the latitude angular dependency of the force. The heat of the material falling into the nuclei is caused by the continuous compressing force of dipole gravity toward the core of the galaxy, which is manifested by the attractive harmonic force of the (sign corrected) Lense-Thirring force at the center.

Within the entire picture of the spiral galaxies, the accretion disc is an integral part of the jets and the dark matter problem when dipole gravity is invoked for its explanation.

Friday, February 1, 2008

History of Gravitomagnetism

It has long been speculated and conjectured that there must be a magnetism like counter part in gravity like in the theory of electricity and magnetism. One of these lines of pursuit was the conventionally known as "gravitomagnetism", which is entirely different from the one presented here as dipole gravity & gravitomagnetism.

The traditional gravitomagnetism starts from the modification of Maxwell's equation to accommodate the known facts in gravity. For example, there is only one known charge(mass) and the force between them is attractive. This resulted in the equation,




where E represents the regular gravity, B the gravitomagnetic field and G the gravitational constant. The entire concept is based on the assumption that the constantly moving charge(mass) creates a gravitomagnetic field around its path like in the case of moving electric charges. However, this formulation didn't result in any new understanding of the gravitational phenomena.

A rotating toroidal ring was its basic model device to create a gravitomagnetic effect. However, a rotating metallic ring did not produce any new physical effect. It did not succeeed in deriving the Lense-Thirring force at the center of the rotating sphere. And it was not useful in solving the emerging mysteries of the universe. In retrospect, one can see that this conventional gravitomagnetism was heavily relied on Maxwell's equation than gravity effect itself. It is basically a Maxwell's equation with the single charges and the attractive force among themselves.

According to the concept of the equivalence principle, an accelerating frame is indistinguishable from the gravitational field itself. However, constantly moving electrons can create magnetic field around their path, which means that the modified Maxwell's equation will predict a gravitomagnetic effect from a constantly moving mass which is in direct disagreement with the equivalence principle.

We can only see it more clearly in the light of dipole gravity, how and why it went wrong. The first and crucial problem was that they tried to find the answer from the outside of general relativity which has been the most successful theory of gravity known today. And also, beyond the fact that the both forces are long range forces, there is little that is common between the two forces.

According to the theory of dipole gravity, accelerating mass in a rotating frame is not the complete condition to create a true gravitomagnetic effect. A rotating cylinder does not create the Lense-Thirring force, which has also been reported by Bass and Pirani. This fact itself already puts a major suspicion on the centrifugal interpretation of the Lense-Thirring force. A rotating sphere creates two opposite gravitomagnets which cancels out pretty good in the far distances.
The only way to create a net long range gravitomagnetic field is by the rotation of a longitudinal axially asymmetric object like a cone, hemisphere and etc.

Only in those cases, the rotational degree of freedom of motion is translated into the finite length element which forms the basis of the gravitational dipole moment.