Day 1 :
University of Manchester, UK
Time : 08:30-09:10
Christopher Terence John Dodson has completed his PhD in 1969. He was appointed to a Lectureship in Mathematics at the University of Lancaster, UK, becoming Head of Department from 1984 to 1989. He took up a Senior Research Chair at the University of Toronto, Canada from 1989 to 1996. Moving to the University of Manchester, UK in 1996, as Professor, he subsequently became Emeritus Professor of Mathematics. His area of research interest includes differential geometry and global analysis, with applications in physics, biology, statistics and information geometry.
Information geometry provides a framework for handling families of probability density functions in Riemannian geometry, with a metric distance structure that has its foundation in information theory. This utilizes the same concept of entropy that plays such an important role in thermodynamics and signal transfer processes. Information geometry has therefore wide applications in physical and biological processes that exhibit stochastic properties. Moreover, the geometric structure can provide a background for the representation of datasets with statistically distributed features, and known analytic results have given us model structures that allow representation of departures from uniformity, randomness and independence. In a number of real situations large datasets arise which contain features of the data origin processes that can be used to characterize the underlying statistical processes. In such cases, information geometry can be used to provide the requisite distance structure on the spaces involved, which may be of high dimension, so enabling proximity comparison, and neighbourhoods for sets of features of interest in data mining. A typical real situation is one in which the features of interest yield mixtures of multi-variate Gaussian distributions, and we describe a method to handle such cases.
Aalto University, Finland
Time : 09:10-09:50
Eija I Tanskanen has completed her PhD at Helsinki University in the year 2002. She has worked as a Post-Doc at NASA Goddard Space Flight Center in 2002-2005 where she studied different magnetospheric modes and the role of magnetotail in the substorm dynamics. She has gained professorship in 2006 from University of Bergen Norway, at the age of 34 years. Currently she is working in Centre of Excellence ReSoLVE and FIN-EPOS infrastructure at Aalto University in Finland. He has published more than 60 papers in reputed journals and has been serving as an editorial board member Geophysical Research Letters and in Space Weather and Space Climate. She has served as a Ministerial Adviser for Minister of transport and Communication as well as European Space Agency’s SSA program User representative and Principal Investigator of the IMAGE magnetometer network.
The Sun and Earth are magnetically coupled and changes in the solar activity modulate geomagnetic activity at high and low latitudes of the Earth. We examine decadal and seasonal variability of auroral substorms and their source regions at the Sun. We have identified auroral substorms from the high-latitude magnetic recordings and geomagnetic storms from the magnetometers close to the magnetic equator. We found out that the largest substorms can occur at any season depending on the state of the Sun, and that the activity is strongly modulated by the Alfvén waves occurring during the all solar cycle phases, but in particular during the declining solar cycle phase. When studing the stormy hours at the equator, we found out that by far the largest amount of stormy hours were seen in 1989, 1991 and 1960 while the least stormy hours are seen in 1964 and between 2007-2009. The classical seasonal pattern seems to be as rare in high and low-latitudes of the Earth, similarly to both hemispheres.
Nanjing University, China
Time : 09:50-10:30
Qiu-He Peng is mainly engaged in nuclear astrophysics , particle astrophysics and galactic astronomy research. In the field of nuclear astrophysics, Peng’s researches involve neutron stars (pulsars), the supernova explosion mechanism and the thermonuclear reaction inside the star, the synthesis of heavy elements and interstellar radioactive element such as the origin of celestial 26Al. 225 papers of him have be published.
An anomaly strong radial magnetic field near the Galactic Center (GC) is detected. The lower limit of the radial magnetic field at r=0.12 pc from the GC is. It is possible scientific significances are following: The black hole model at the GC is incorrect. The reason is very simple as follows. The radiations observed from the region neighbor of the GC are hardly emitted by the gas of accretion disk which is prevented from approaching to the GC by the abnormally strong radial magnetic field. This is an anticipated signal for existence of magnetic monopoles (MM). The lower limit of the detected radial magnetic field is quantitatively in agreement with the prediction of the paper “An AGN model with MM”. Magnetic monopoles may play a key role in some very important astrophysical problems using the Robakov-Callen effect that nucleons may decay catalyzed by MM. Taking the RC effect as an energy source, we have proposed an unified model for various supernova explosion, including to solve the question of the energy source both in the Earth core and in the white dwarfs. We may explain the physical reason of the Hot Big Bang of the Universe with the similar mechanism of supernova explosion by using the RC effect as an energy source.
Institute for Physical Research, Republic of Armenia
Keynote: The importance of position and movement detection of space objects for exoplanet discovery and for prediction of asteroids (comets) impact with earth
Time : 10:50-11:30
Artur Martirosyan has completed his PhD at the Institute for Physical Research in the year 1985. He has defended his doctoral dissertation and received the degree of Doctor of Phys.-Math Sciences in 2012. He is the Senior Researcher at the Institute for Physical Research. He has published more than 50 papers in reputed journals and conferences proceedings. His research interests include optics, lasers, remote sensing, astronomy and non-destructive testing.
Due to the fact that the brightness of exoplanets in the visible spectral region is about 107-109 times less than that of host stars, indirect methods are usually used to detect them. To date, thousands of exoplanets have been discovered. The main way of detection has become a transit method. The amplitude of relative reduction (transit depth) of stellar light allows evaluating the radius of exoplanet. Kepler Mission uses transit photometry to detect transit depth up to 10-4. Another important tool for exoplanet detection is the Doppler spectroscopy method, also known as radial velocity. The advantage of this method is that it allows us to estimate the mass of an exoplanet if the star oscillates along the earth-star line. If the star rotates in the transverse plane, the method does not work. Gravitational microlensing is a phenomenon predicted by Einstein in General Theory of Relativity. Because microlensing events do not repeat themselves, the detected exoplanets will never be observed again. Accurate prediction of the collision of asteroids and comets with Earth is an important task, which determines the existence of humans, and maybe life, on earth. On the example of Tunguska (1908) and Chelyabinsk (2013) meteorites, we can imagine the degree of threat to the earth, which comes from the space bodies.
Given the importance of the problem, many ground and space based systems are used on this topic. Apparently, the most successful instrument for observing comets and asteroids from the earth orbit is the mission WISE (NEOWISE) which surveyed the sky in 3-12 micrometers band to detect thermal radiation from asteroids. New methods, including synthetic tracking, are applied for finding and tracking small and fast moving near-earth asteroids. Radar provides the ability to study shape and size of asteroids and comets from the ground.