| viXra.org > Astrophysics > 2206 |
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| viXra.org > Astrophysics > 2206 |
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[6] viXra:2206.0119 [pdf] submitted on 2022-06-22 08:58:56
Authors: Richard Shurtleff
Comments: 8 page article followed by 25 pages of computer programs in two Appendices; 8 figures
Many measurements of astronomical objects involve transverse vectors, directions tangent to the Celestial Sphere, such as polarization vectors, jets, major and minor axes, to name a few. Applying the Hub Test to a sample of transverse vectors yields measures of the correlations among the vectors' directions. How well do the directions aim toward points on the sphere, i.e. do they convergence? Do the directions avoid some point on the sphere, i.e. do they divergence? Judging significance requires developing statistics of samples of randomly directed transverse vectors, which is what this paper describes. Many artificial samples with randomly directed transverse vectors are created and the Hub Test is applied to each. The many results make distributions that are fit by suitable formulas. Thus probability distributions can be recovered by knowledge of the parameters, a great reduction in storage space. The collection of parameters for the many distributions makes the reference Library, a compact archive of statistical information. Having such a Library streamlines the process of finding the significance of Hub Test results. Two computer programs are provided in the Appendices so that creating the distribution parameter data can be repeated.
Category: Astrophysics
[5] viXra:2206.0104 [pdf] replaced on 2022-07-20 17:19:45
Authors: Arieh Sher
Comments: 8 Pages.
I claim that there is a universe's absolute reference frame. This is the aether or vacuum space. The theories of Newton and Einstein are combined to describe the structure of our universe.
Category: Astrophysics
[4] viXra:2206.0098 [pdf] submitted on 2022-06-18 23:32:58
Authors: Giuseppe Cimino
Comments: 3 Pages.
Considering the presence of the cosmic background radiation, using the density of 400 photons per cm³, it is imagined that it is possible that a high-energy photon collides with a photon in the microwave background, giving rise to a mass that, on a large scale, produces effects gravitational. Taking into account the average density of dark matter (e.g. in the Milky Way), the order of magnitude of the collisions that can guarantee the formation of a photon-photon collision mass (with gravitational effects) is evaluated. This eventuality is an alternative idea to dark matter. In addition to the Milky Way, we consider the galaxy M31 as an example.
Category: Astrophysics
[3] viXra:2206.0079 [pdf] submitted on 2022-06-15 04:44:18
Authors: Nikolay Kamardin
Comments: 14 Pages.
In this paper, the mechanisms of such pulsar phenomena as nulling and glitch are considered, proceeding
from the hypothesis of the non-magnetic nature of their emissions. It is shown that these phenomena are
caused by the decrease in the pulsar's matter at different stages of its evolution. One of the main features
of a pulsar is that it is a body of variable (monotonically decreasing) mass. The principle of the formation
of radiation beam's structure is described. The author shares the opinion of those astrophysicists who
believe that the nulling of the pulsar is a harbinger of the end of its emission activity
Category: Astrophysics
[2] viXra:2206.0048 [pdf] submitted on 2022-06-10 06:13:06
Authors: Nikolay Kamardin
Comments: 14 Pages.
It is generally accepted that the pulsar magnetic field converts most of its rotational energy losses into radiation. In this paper, we propose an alternative emission mechanism, in which neither the pulsar’s rotational energy nor its magnetic field is involved. The emission mechanism proposed here is based on the hypothesis that the pulsar matter is stable only when moving with respect to the ambient medium at a velocity exceeding some threshold value. A decrease in velocity below this threshold value leads to the decay of matter with the emission of electromagnetic radiation. It is shown that decay regions on the pulsar surface in which the velocities of pulsar particles drops to arbitrarily small values are formed under simple driving condition. It is also shown that for the majority of pulsars having measured transverse velocities, such a condition is quite possible. Thus, the pulsar radiation carries away not the pulsar rotational energy, but its mass, while the magnitude of the rotational energy does not play any role. At the end of the paper, we consider the reason for the possible short-period precession of the pulsar.
Category: Astrophysics
[1] viXra:2206.0013 [pdf] submitted on 2022-06-02 21:05:29
Authors: Changqi Yang
Comments: 12 Pages.
A method for calculating the arbitrarily complex shape optical receiver’s aperture averaging function is proposed in this paper. In this method, the mathematical shape of the optical receiver is mapped into a two-dimensional n*n matrix. The calculation of the aperture averaging function is transformed into the mathematical operation between two two-dimensional matrices. To verify this method, the Cassegrain telescope's aperture averaging function is calculated by mapping to a 300*300 matrix and compared with the theoretical results. The comparison results show that the error of the aperture averaging function calculated by this method is very small. This method can be trusted to calculate the arbitrarily complex shape optical receiver's aperture averaging function.
Category: Astrophysics
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