Serial № 11. Paper code: 23.03.2009

Title: Determination of the moments of rising, decline and visibility period of a space body  with use of data of two measurements of its horizontal coordinates

Author: A. Serpuhovitov (SRPMS, 11 class, 2008-2009)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It is represented at Final scientific and practical conference of pupils of the Samara regional physical and mathematical school in 2009.

Abstract

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 44 pp.) 

Serial № 12. Paper code: 24.03.2009

Title: Estimation of mass and average mass density of Galilean satellites with use of observational data. The quantitative analysis of distribution of Quantity Motion Moment in  system «Jupiter».

Author: I. Zozulenko (SRPMS, 11 class, 2008-2009)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It has been awarded with 1) the second degree diploma of winner of Final scientific and practical conference of pupils of the Samara Regional Physical and Mathematical School in 2009; 2) the second degree diploma of Samara Regional scientific and practical conference of schoolboys in section "Astronomy" in 2009.

Work is published in journal Bulletin of the Samara Regional Physical and Mathematical School. − 2009. − №5. − P. 83−96.

Abstract

The advanced technique of definition of key parameters of Galilean satellites is offered in the given work. The task about determination of satellite orbital velocity is solved here. New results are totally coincide with the previous results of astronomers ̶ professionals. Estimations of mass Galilean satellites are received. Owing to the big experimental errors of determination of satellite period and its orbit radius, the received values of mass and density are essentially overestimated. The generalized criterion of Rosh for "Jupiter-Galilean sitellites" system is received. The estimations of average density of satellites are extremely low here. It is strictly proved, that more than 98% of Total Moment of Motion Quantity of the Jove system is the MMQ of  Jupiter axial rotation. The received results demonstrate about absence of MMQ-problem in system «Jupiter».

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 49 pp. )

Title: A simplest model of small halo phenomenon

Author: V. Zagorodnikova (SRPMS, 11 class, 2008-2009)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju. P.  It has been awarded with 1) the third degree diploma of the winner of XVIII All-Russia scientific - practical conference for the gifted school-boys «Intel-Dinastiya-Avangard 2009». in section "Computer modelling"; 2) the first degree diploma of winner of Final scientific and practical conference of pupils of the Samara Regional Physical and Mathematical School in 2009; 3) the second degree diploma of Samara Regional scientific and practical conference of schoolboys in section "Theoretical and experimental methods in physics" in 2009.

Work is published in journal Bulletin of the Samara Regional Physical and Mathematical School. − 2009. − №5. − P. 70−82.

Abstract

The simplest physical model of 22°-halo based on the geometrical optics and physics of atmospheric clouds is represented in the work. The task about determination of flux angular distribution of light  for single crystal is solved. The general algorithm is developed and its special case is considered in detail. It is shown, that at θ = 22.06 ° the sharp maximum of flux is observed. The task about determination of concentration of water ice crystals from height is solved in an analytical form. Calculation of flux angular distribution of light scattering by a cloud of crystals is made. The full profile of flux angular distribution of light is received. The received result explains all basic features of a visual image 22 ° - halo. It is shown, that uncertainty of halo external border directly correlates with turbulence of lifting air streams which hold crystals in a equilibrium.

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 65 pp.)

Title: A simplest model of Sun surface fluctuations

Author: A. Komendatyan (SRPMS, 10 class, 2008-2009)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It is represented at Final scientific and practical conference of pupils of the Samara regional physical and mathematical school in 2009.

Abstract

A simplest physical model of pulsations of Sun photosphere is considered in the present work. The analytical  dependence of average radius of Sun photosphere from value of surface charge of a transitive layer is found. The dynamic model of drift of photosphere plasma is formulated. The closed system of the differential equations is received in view of initial and boundary conditions. The dependence of a surface charge of a transitive layer from concentrations of particles of different kinds is determined. The reduction of model is made. The reduced closed system of the differential equations of plasma layers motion is solved numerically taken into account initial conditions. The numerical analysis of the given results in case of photosphere plasma conditions for thermal and non-thermal velocities of the heavy charged particles is made. It is shown, that there are some kinds of plasma fluctuations which can be identified, basically, on a spectrum of Sun radio emission. The estimations of wavelengths corresponding to protons and α-particles fluctuations  are given. It is shown, that such fluctuations cannot represent steady process in physical conditions of Solar crown.

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 43 pp.)

Title: A construction of 3D-map of effective temperature of Mars surface according to the observation data of its polar caps

Author: A. Seliverstov (SRPMS, 10 class, 2008-2009)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P. It has been awarded with 1) the first degree diploma of winner of Final scientific and practical conference of pupils of the Samara Regional Physical and Mathematical School in 2009; 2) the second degree diploma of Samara Regional scientific and practical conference of schoolboys in section "Astronomy" in 2009.

Work is published in journal Bulletin of the Samara Regional Physical and Mathematical School. − 2009. − №5. − P. 97−109.

Abstract

The elementary theoretical algorithm of determination of planet surface effective temperature is formulated surface in the present work. For this purpose the task about determination of polar angles of Mars orbit points corresponding to the summer solstices in southern and northern hemispheres is solved. The calculation of falling angle of a light beam, as functions of geographical latitude, a clock angle and a polar angle of a planet is executed. Two auxiliary algorithms of definition of geographical latitude of borders of northern and southern Mars polar caps are developed. The effective refraction index of Mars surface ground is calculated. Expression for effective temperature of planet surface is represented in a compact analytical form. The new computer program 3DMSET-M [2008] for fast creation of a 3D-map of Mars  effective temperature is constructed.

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 38 pp.)

Title: A simplest non-quantum model of heavy charged particles passage through cosmic ices with β ≤ 0.01

Author: O. Kondrashov (SRPMS, 11 class, 2008-2009)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It has been awarded with 1) the first degree diploma of winner of Final scientific and practical conference of pupils of the Samara Regional Physical and Mathematical School in 2009; 2) the second degree diploma of Samara Regional scientific and practical conference of schoolboys in section "Theoretical and experimental methods in physics" in 2009.

Work is published in journal Bulletin of the Samara Regional Physical and Mathematical School. − 2009. − №5. − P. 58−69.

Abstract

The simplist non-quantum model of  heavy charged particles (β= v/c ≤ 0.01) interaction with cosmic ices medium is constructed. For this purpose the task about calculation of effective charge and electric field of hydrogen and oxygen atoms is solved  with use of Gauss theorem  and Thomas-Fermi's statistical method. The impulse variaton and ionization energy losses of a particle with use of results of polynomial  approximation of effective electric charge of atom electronic cloud are calculated  here. It is shown, that the given model describes the curve of energy ionization losses partially: it predicts existence of the peak similar Bragg peak, and its size. However peak position on energy is not in agreement  to the predictions of computer program GEANT4. Electrostatic potentials of hydrogen and oxygen atom and total scattering cross sections of protons and  α-particles (depending on  particles velocities) are calculated.

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 49 pp.)

Title:  The updated atlas of clouds. The quantitative analysis of some physical properties of clouds and new methods of their researches

Author: K. Borisova (SRPMS, 11 class, 2009-2010)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It has been awarded with 1) the second degree diploma of winner of XIX All-Russia scientific - practical conference for the gifted school-boys «Intel-Dinastiya-Avangard 2010» in section "Theoretical Physics"; 2) the first degree diploma of Samara Regional scientific and practical conference of schoolboys in section "Theoretical physics" in 2010.

Work is published in journal Bulletin of the Samara Regional Physical and Mathematical School. − 2010. − №6. − P. 81−94.

Abstract

In the given work the updated atlas of clouds which have included in the most comleted description of different clouds classes, and also their images (included more than 90 color photos) is made. With use of the new atlas the elementary analysis of some clouds properties  on the photos (received by Philippov J.P. and Borisova K.) is presented. The calculation of cloud height, distance, velocity  and their analytical results  are made with use of triangulation method. The technique of definition of the angular and linear visible sizes for clouds is offered with use of Drift method. The new optical method of definition of cloud height and distance  (for average and bottom layers of clouds) is offered. The main advantage of the given method is its opportunity of use during evening and night time of day.

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 63 pp.)

Title:  Map development of general space ice sublimation for Solar system

Author: V. Lapkovskaya (SRPMS, 11 class, 2009-2010)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It has been represented at Samara Regional scientific and practical conference of schoolboys in section "Astronomy" in 2010.

Abstract

The brief review of modern representations about space ice and Solar system is submitted in the given work. The task about reflection coefficient of the flat non-polarized electromagnetic wave from flat border of two dielectric environments is solved as function of falling angle and refraction index. The spherical albedo as function of refraction index is calculated. The heat equilibrium equations both for sublimated and for unsublimated particles are constructed with use of radiation laws for black and grey body. Analytical expression for sublimation sphere radius of macroscopical spherical particle from space ice is received in approximation of grey body model. The two kinds of sublimation maps are constructed: 1) small sublimation spheres (H2O, NH3, O2, CO2) settle down in the region of classical planets orbits; 2) big sublimation spheres (СH4, N2, CO) which settle down in the field of Trans-Neptunian objects orbits. It is shown, that the radius of sphere of sublimation is sensitive to emissivity of space ice. .The seasonal character of sublimation of general space ice is peculiar for Jupiter and Saturn satellites, dwarfs planets  and comets.

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 56 pp.)

Title:  Ballistics of the body falling in planet atmosphere

Author: A. Komendatyan (SRPMS, 11 class, 2009-2010)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It has been awarded with the first degree diploma of Samara Regional scientific and practical conference of schoolboys in section "Theoretical physics" in 2010.

Abstract

In the present work the new model of spherical nonideal meteoroid falling in planet atmosphere is formulated taken into account non-leading factors. Calculation of drag force, mass flux of atmospheric gas and heat flux absorbed by meteoroid is made at the most general case.  The mass and  and radius decreasing equations for meteoroid are submitted. The closed system of five first order nonlinear differential equations with the boundary conditions, describing ballistics of nonideal meteoroid in planet atmosphere is represented with using of the generalized barometric formula. The given system of the differential equations solves numerically  for a spherical particle of water ice by radius 1 mm, included in Earth atmosphere with a speed of 50 km/s, with falling angle of 45 degrees. The next dependences y (t), y(x), V (y), R (y), [Δm/m] (y), F_dr(y), F_Q(y) at four general regions of Earth atmosphere. It is shown, that the particle  most slowly falls in troposphere but the particle passes thermosphere  for one second. The sharp decreasing of particle speed and achievement of the maximum for drag force heat flux is observed in methosphere.  The particle loses more than half of the initial mass and the radius of a particle decreases up to 75 % from initial here.

Download: ppdf-file (demo) of work (in russian, full version of the paper consists of 64 pp).

 Title:  Definition of separate properties of Rhea rings and satellites

Author: A. Chernova (SRPMS, 10 class, 2009-2010)

Notes: The work is made under supervising of senior lecturer of General and Theoretical Department of Samara State University Philippov Ju.P.  It has been awarded with the third degree diploma of Samara Regional scientific and practical conference of schoolboys in section "Astronomy" in 2010.

Abstract

 The problem about definition of Rhea rings (A, B, C) radiuses  is solved In the present work according to experimental data.  Rotation period, angular and linear orbital speed, normal acceleration for the particles of the given rings are calculated. Minimal and maximal mass of bodies of Rhea rings is estimated. Analytical expression for Roche radius is made in case of the solid-state satellite. Numerical calculation of the given radius is realized and it is shown, that all rings  lay outside of Roche sphere. Definitions and detailed calculations for four gravitational spheres are represented   using celestial mechanics and astronautics. It is shown, that all rings of Rhea lay outside of attraction sphere, but inside spheres of action, Hill's and influences. The 2D-map of gravitational spheres and  Roche sphere  for Rhea with indication of Rhea rings arrangement is constructed. The given map allows to present a corresponding placement of rings and Rhea gravitational spheres obviously.

Download: pdf-file (demo) of work (in russian, full version of the paper consists of 63 pp).