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Scientific Activity

Development of selenocentric navigation system: optimization of the observations in planned space experiments and refinement of the geophysical parameters of the Moon. The center masses position of the Moon relative to its center figure was determined from data "Clementine» and "Kaguya" missions and "ULCN" and "KSC-1162" catalogues. For the first time in the selenodesy were made the global selenocentric dynamic reference net.

Modeling the physical libration of the Moon. The questions concerning astronomical telescopic observations from the lunar surface are solved. Computer simulating the lunar physical libration based on the developed Kazan analytical theory allowed us to estimate the possibility of planned observations of libration with the aid of a telescope, which is planned to be mounted on one of the lunar poles. The telescope will operate in the frame of the Japanese In-situ Lunar Orientation Measurement project. Simulation was carried out to identify some of the strengths and weaknesses of the project.

Mini-MegaTORTORA-multichannel system for wide-field optical monitoring with high temporal resolution: the multi-objective and transforming 9-channel monitoring system, the Mini-MegaTORTORA (MMT-9). This system combines a wide field of view with a subsecond temporal resolution in the monitoring regime, and is able to recofingure itself, in fractions of a second, to a follow up mode which has better sensitivity and provides us with multi-color and polarimetric information on detected transients simultaneously.

ASTEROID AND COMET HAZARD: IDENTIFICATION PROBLEM OF OBSERVED SPACE OBJECTS WITH THE PARENTAL BODIES. The D-criteria, which can be used to determine the genetic relationships of small bodies with their parent bodies in the 11 solar system, are estimated. This work  focuses on the genetic identification of observed small cosmic bodies with alleged parental bodies; namely, comets, asteroids and meteoroid swarms. There is a problem of the upper Dvalue

limit as a measure of proximity between the orbits of the bodies in the five-dimensional phase space.

 

 

Research in the field of geophysics and seismology

 

solar - terrestrial relations. The des­cription of periodic features as well as the analysis of auto dynamics, cross-correlation realized in solar activity out FNS-parameterization of Zurich series Wolf numbers were carried; the analysis of complex and turbulent phenomena of background magnetic fields on the Sun and other stars was made; using high-resolution observation in the convection zone the solar magnetism theory based on the analysis and solar radiation simulation was refined.

 

galactic astronomy: Was finded that there is no a significant anisotropy in the abundance distribution

across the sky. The amplitude of the fluctuations of the nitrogen abundance excess is ∼0.015 dex at the scale of 5◦×5◦ sky areas and ∼0.011 dex at the scale of 10◦×10◦ areas. The dependence of galaxy abundance on environment is considered. There is evidence that the nitrogen abundance excesses are, on average, slightly higher in galaxies in the dense environment. However the scatter in the abundance excesses is large at any density environment, therefore the galaxies with enhanced and reduced abundances exist at any density environment. The abundance excess in a galaxy does not correlate with the distance to the nearby galaxy. Our result confirms the conclusions of the some previous studies that the environment effects do not play a key role in evolution of galaxies.

 

 

Participation in conferences over the last three years:

European Planetary Science Congress 2015, 28 September – 02 October  2015, La Cité des Congrès, Nantes, France;

SPACEKAZAN-IAPS-2015- Kazan June, 01 – 07

European Planetary Science Congress 2012, IFEMA – Feria de Madrid, Centro de Convenciones Parque Ferial Juan Carlos, 23-28 September  2012;

European Planetary Science Congress 2013, University College London, 8-13 September 2013;

EGU General Assembly Vienna, Austria, 27 April – 2 May 2014;

European Planetary Science Congress 2014, Centro de Congressos do Estoril, 7-12 September 2014;

National astronomical observatory of Japan, 2014 .

high rating Articles 2015:

1) Pilyugin, L.S. ON the INFLUENCE of MINOR MERGERS on the RADIAL ABUNDANCE GRADIENT in DISKS of MILKY-WAY-LIKE GALAXIES/ Zinchenko, I.A., Berczik, P., Grebel, E.K., Pilyugin, L.S., Just, A. Zinchenko, I.A., Berczik, P., Grebel, E.K., Pilyugin, L.S., Just, A.// Astrophysical Journal.- 2015.- Volume 806, Issue 2, 20 June 2015, Article number 267 P. doi:10.1088/0004-637X/806/2/267 IF 6

2) Pilyugin, L.S.  On the radial abundance gradients in discs of irregular galaxies  / Pilyugin, L.S. , Grebel, E.K., Zinchenko, I.A.//  Monthly Notices of the Royal Astronomical Society.- 2015.- Volume 450, Issue 3, 2015, Pages 3254-3263 DOI: 10.1093/mnras/stv932 IF 5.1

7) Malkin, Z., at al. DIVISION I: COMMISSION 19: ROTATION of the EARTH  // Proceedings of the International Astronomical Union Volume 10, Issue T28B, 2015, Pages 95-105 DOI: 10.1017/S1743921315005517 IF 0.5

8) Malkin, Z., at al. Non-linear VLBI station motions and their impact on the celestial reference frame and Earth orientation parameters //  Journal of Geodesy Volume 89, Issue 10, 18 June 2015, Pages 1019-1033 DOI: 10.1007/s00190-015-0830-4 IF 2.7

9) Malkin, Z., at al. The second realization of the international celestial reference frame by very long baseline interferometry//  Astronomical Journal Volume 150, Issue 2, 1 August 2015, Article number 58 DOI: 10.1088/0004-6256/150/2/58 IF 4

10) Kurtanidze, O.M., at al. Multiwavelength observations of Mrk 501 in 2008//  Astronomy and Astrophysics Volume 573, 1 January 2015, Article number A50 DOI: 10.1051/0004-6361/201322906 IF 4.3

11) Kurtanidze, O.M., at al. The 2009 multiwavelength campaign on Mrk 421: Variability and correlation studies//  Astronomy and Astrophysics Volume 576, 1 April 2015, Article number A126 DOI: 10.1051/0004-6361/201424216 IF 4.3

12) Kurtanidze, O.M., at al. Discovery of a highly polarized optical microflare in blazer S50716+714 during the 2014 webt campaign//  Astronomical Journal Letters, 2015.-  809:L27 doi:10.1088/2041-8205/809/2/L27 IF 5.3

13) Kurtanidze, O.M., at al. The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission//  Mon. Not. R. Astron. Soc.-2015.- 000, 1-16  IF 5.1

14) Kurtanidze, O.M., at al. Fust Nustar observations of MRK 501 within a radio to Tev multi – instrument campaign // The astrophysical Journal.- 2015.- 812:65  doi:10.1088/0004-637X/812/1/65

15) Kurtanidze, O.M., at al. Optical and radio variability of BL Lacertae// A&A 582, A103 (2015) DOI:10.1051/0004-6361/201526536 IF 4.3

16) Kurtanidze, O.M., at al. Unprecedented study of the broadband emission of Mrk 421 during flaring activity in March 2010//  Astronomy and Astrophysics Volume 578, 1 June 2015, Article number A22 DOI: 10.1051/0004-6361/201424811 IF 4.3