Российский фонд
фундаментальных
исследований

Физический факультет
МГУ им. М.В.Ломоносова
 

S

Samsonov S.N.

 

Parshina S.S., Tokayeva L.K., Dolgova E.M., Afanas'yeva T.N., Samsonov S.N., Petrova V.D., Vodolagina E.S., Kaplanova T.I., Potapova M.V. «Erythrocytes functional features in the 11-year solar cycle» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 240-241 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114691 There had been studied features of rheological blood failures in patients with unstable angina (UA) in periods of the high (HSA) and low solar activity (LSA) in the 23rd 11-year solar cycle. This category of patients is characterized by prethrombotic blood state, although they don’t have coronary thrombosis. The research aimed to study compensatory mechanisms which block thrombosis development at the solar activity increase. There had been established that the period of the solar activity increasing in the 11-year solar cycle is characterized by an increase of a blood viscosity, comparing with the period of a low solar activity. Though, erythrocytes functional features in this case are compensatory mechanisms – erythrocyte aggregation paradoxically reduced and their deformability increases. It is probably connected with the revealed fibrinogen decrease in the period of the high solar activity. We can see that the change of a solar activity is accompanied not only by the progressing of pathologic processes, but also by an activation of adaptive changes in erythrocyte membrane so0 as to prevent thrombosis. Though, the required compensatory mechanisms were found invalid, which were shown in the decrease of an oxygen delivery to tissues, and the effectiveness decrease of the medical treatment in the period of a HSA.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 240-241 (2017) | Рубрика: 18

Savanevich V.

 

Koshkin N.I., Savanevich V., Pohorelov A., Shakun L., Zhukov V., Korobeynikova E., Strakhova S., Moskalenko S., Kashuba V., Krasnoshchokov A. «Ukrainian database and atlas of light curves of artificial space objects» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 226-229 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.117655 This paper describes the Ukrainian database of long-term photometric observations of resident space objects (RSO). For the purpose of using this database for the outer space monitoring and space situational awareness (SSA) the open internet resource has been developed. The paper shows examples of using the Atlas of light curves of RSO's for analyzing the state of rotation around the center of mass of several active and non-functioning satellites in orbit.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 226-229 (2017) | Рубрика: 18

Savanevych V.E.

 

Savanevych V.E., Briukhovetskyi O.B., Khlamov S.V., Pohorelov A.V., Vlasenko V.P., Dubovsky P.A., Kudzej I., Parimucha Š. «COLITECVS – new tool for automated reduction of photometric observations» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 194-197 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114495 The capabilities of telescopes allow us to make the plotting of light curves a routine task. This one shifts the main attention of astronomer from the plotting to research. To achieve this goal, we developed a new tool for automated reduction of photometric observations, which includes the computational method for the brightness assessment of the investigated and comparison stars; brightness equalization of astronomical images using inverse median filter; light curve plotting and its processing using different tools.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 194-197 (2017) | Рубрика: 18

Savastru S.V.

 

Savastru S.V., Marsakova V.I., Andrych K.D., Dubovsky P. «Improved ephemeris of poorly studied eclipsing binary GSC 3950-00707 = 2mass J20355082+5242136» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 126-127 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.115819 We made our CCD-observations of GSC 3950-00707 by using the telescope Celestron-14 of Vihorlat Observatory and Astronomical Observatory on Kolonica Saddle. The moments of minima were calculated by using the symmetrical polynomial fit. We also analyzed the observations from automated surveys ASAS-SN and found 3 mean minima by using trigonometrical polynomial fit. The analysis of our observations and data from the surveys allows to conclude that it is the W UMa-type variable and its published period value is not accurate. We analyzed the O–C curve and corrected the elements.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 126-127 (2017) | Рубрика: 18

Savchuk N.V.

 

Doikov D.N., Savchuk N.V., Yushchenko A.V. «Radioactive molecules in SN1987a remnant» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 69-75 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114273

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 69-75 (2017) | Рубрика: 18

Serra-Ricart M.

 

Oknyansky V.L., Gaskell C.M., Huseynov N.A., Mikailov Kh.M., Lipunov V.M., Malanchev N.I., Tsygankov S.S., Gorbovskov E.S., Tatarnikov A.M., Metlov V.G., Shatsky K.L., Brotherton M.B., Kasper D., Du P., Chen X., Burlak M.A., Buckley D.A.H., Rebolo R., Serra-Ricart M., Podesta R., Levato H. «Ulti-wavelength monitoring of the changing-look AGN NGC 2617 during state changes» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 117-120 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114366 Optical and near-infrared photometry, optical spectroscopy, and soft X-ray and UV monitoring of the changing-look active galactic nucleus NGC 2617 show that it continues to have the appearance of a type-1 Seyfert galaxy. An optical light curve for 2010–2017 indicates that the change of type probably occurred between 2010 October and 2012 February and was not related to the brightening in 2013. In 2016 and 2017 NGC 2617 brightened again to a level of activity close to that in 2013 April. However, in 2017 from the end of the March to end of July 2017 it was in very low level and starting to change back to a Seyfert 1.8. We find variations in all passbands and in both the intensities and profiles of the broad Balmer lines. A new displaced emission peak has appeared in Hβ. X-ray variations are well correlated with UV–optical variability and possibly lead by ∼2–3d. The K band lags the J band by about 21.5±2.5d and lags the combined B+J bands by ∼25d. J lags B by about 3 d. This could be because J-band variability arises predominantly from the outer part of the accretion disc, while K-band variability is dominated by thermal re-emission by dust. We propose that spectral-type changes are a result of increasing central luminosity causing sublimation of the innermost dust in the hollow bi-conical outflow. We briefly discuss various other possible reasons that might explain the dramatic changes in NGC 2617.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 117-120 (2017) | Рубрика: 18

Shablenko V.Yu.

 

Kotvytskiy A.T., Bronza S.D., Shablenko V.Yu. «Correlation of the number of images of an n-point gravitational lens and the number of solutions of its system» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 35-37 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114229. In this paper, we study the correlation between the number of solutions of a system of lens equations and the number of source images that a gravitational lens has. We defined the concept of an image in a gravitational lens. To find the set of solutions of a system of lens equations, we applied methods of algebraic geometry.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 35-37 (2017) | Рубрика: 18

Shakun L.

 

Koshkin N.I., Savanevich V., Pohorelov A., Shakun L., Zhukov V., Korobeynikova E., Strakhova S., Moskalenko S., Kashuba V., Krasnoshchokov A. «Ukrainian database and atlas of light curves of artificial space objects» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 226-229 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.117655 This paper describes the Ukrainian database of long-term photometric observations of resident space objects (RSO). For the purpose of using this database for the outer space monitoring and space situational awareness (SSA) the open internet resource has been developed. The paper shows examples of using the Atlas of light curves of RSO's for analyzing the state of rotation around the center of mass of several active and non-functioning satellites in orbit.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 226-229 (2017) | Рубрика: 18

Shakun L., Koshkin N., Korobeynikova E., Strakhova S., Dragomiretsky V., Ryabov A., Melikyants S., Golubovskaya T., Terpan S. «Accuracy of satellite optical observations and precise orbit determination» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 242-245 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.117660 The monitoring of low-orbit space objects (LEO-objects) is performed in the Astronomical Observatory of Odessa I.I. Mechnikov National University (Ukraine) for many years. Decades-long arсhives of these observations are accessible within Ukrainian network of optical observers (UMOS). In this work, we give an example of orbit determination for the satellite with the 1500-km height of orbit based on angular observations in our observatory (Int. No. 086). For estimation of the measurement accuracy and accuracy of determination and propagation of satellite position, we analyze the observations of Ajisai satellite with the well-determined orbit. This allows making justified conclusions not only about random errors of separate measurements, but also to analyze the presence of systematic errors, including external ones to the measurement process. We have shown that the accuracy of one measurement has the standard deviation about 1 arcsec across the track and 1.4 arcsec along the track and systematical shifts in measurements of one track do not exceed 0.45 arcsec. Ajisai position in the interval of the orbit fitting is predicted with accuracy better than 30 m along the orbit and better than 10 m across the orbit for any its point.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 242-245 (2017) | Рубрика: 18

Shatokhina S.

 

Andruk V., Yuldoshev Q., Eglitis I., Pakuliak L., Mullo-Abdolov A., Vaviliva I., Protsyuk Yu., Relke H., Golovnia V., Shatokhina S., Yizhakevych O., Ehgamberdiev Sh., Muminov M., Kokhirova G., Kazantseva L. «On the concept of the enhanced FON catalog compilation» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 159-162 (2017)

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 159-162 (2017) | Рубрика: 18

Golovnia V., Yizhakevych O., Shatokhina S., Andruk V. «Photographic observations of solar system bodies at the Main astronomical observatory of NAS of Ukraine: final results» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 170-173 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114463 Astrometric photographic observations of Solar system bodies in the frame of different programs were made at MAO NAN of Ukraine during 1950–2005. 9245 plates with the images of planets and their natural satellite, Moon, minor planets, comets and artificial satellites were obtained and processed in the late 20th century. At the beginning of the 21st century, the UkrVO Joint Digital Archive (JDA) was created, which is accessible at the МAO NAS resources (http://gua.db.ukr-vo.org/archivespecial.php). To digitize the plate archive for the JDA database, flat bed scanners were used and the software was specially developed on the basis of the LINUX/MIDAS/ROMAFOT software for the processing of wide-field images, as well as searching for the images of minor planets and comets on the Northern sky survey program plates. Up to the present time, the photographic plates with images of outer planets and their satellites have been re-processed. The final result of the long-lasting program of the photographic positional observations of Solar system bodies are summarized and presented in this publication.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 170-173 (2017) | Рубрика: 18

Shatokhina S.V.

 

Shatokhina S.V., Kazantseva L.V., Yizhakevych O.M., Eglitis I., Andruk V.M. «Asteroids search results in large photographic Sky Surveys» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 198-200 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114510 Photographic observations of XX century contained numerous and varied information about all objects and events of the Universe fixed on plates. The original and interesting observations of small bodies of the Solar system in previous years can be selected and used for various scientific tasks. Existing databases and online services can help make such selection easily and quickly. The observations of chronologically earlier positions, photometric evaluation of brightness for long periods of time allow refining the orbits of asteroids and identifying various non-stationaries. Photographic observations of Northern Sky Survey project and observations of clusters in UBVR bands were used for global search for small bodies of Solar system. Total we founded 2486 positions of asteroids and 13 positions of comets. All positions were compared with ephemeris. It was found that 80 positions of asteroids have a moment of observation preceding their discovery, and 19 of them are chronologically the earliest observations of these asteroids in the world.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 198-200 (2017) | Рубрика: 18

Shatsky K.L.

 

Oknyansky V.L., Gaskell C.M., Huseynov N.A., Mikailov Kh.M., Lipunov V.M., Malanchev N.I., Tsygankov S.S., Gorbovskov E.S., Tatarnikov A.M., Metlov V.G., Shatsky K.L., Brotherton M.B., Kasper D., Du P., Chen X., Burlak M.A., Buckley D.A.H., Rebolo R., Serra-Ricart M., Podesta R., Levato H. «Ulti-wavelength monitoring of the changing-look AGN NGC 2617 during state changes» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 117-120 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114366 Optical and near-infrared photometry, optical spectroscopy, and soft X-ray and UV monitoring of the changing-look active galactic nucleus NGC 2617 show that it continues to have the appearance of a type-1 Seyfert galaxy. An optical light curve for 2010–2017 indicates that the change of type probably occurred between 2010 October and 2012 February and was not related to the brightening in 2013. In 2016 and 2017 NGC 2617 brightened again to a level of activity close to that in 2013 April. However, in 2017 from the end of the March to end of July 2017 it was in very low level and starting to change back to a Seyfert 1.8. We find variations in all passbands and in both the intensities and profiles of the broad Balmer lines. A new displaced emission peak has appeared in Hβ. X-ray variations are well correlated with UV–optical variability and possibly lead by ∼2–3d. The K band lags the J band by about 21.5±2.5d and lags the combined B+J bands by ∼25d. J lags B by about 3 d. This could be because J-band variability arises predominantly from the outer part of the accretion disc, while K-band variability is dominated by thermal re-emission by dust. We propose that spectral-type changes are a result of increasing central luminosity causing sublimation of the innermost dust in the hollow bi-conical outflow. We briefly discuss various other possible reasons that might explain the dramatic changes in NGC 2617.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 117-120 (2017) | Рубрика: 18

Shepelev V.A.

 

Isaeva E.A., Lytvynenko O.A., Shepelev V.A. «Software for adapting DSPZ receivers to the URAN interferometer network» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 219-221 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.115456 More than 10 years ago, URAN interferometer network (Megn A.V.,1997; Konovalenko A.A., 2014) had been equipped with newly designed receivers with a pass band extended up to 250 kHz and software rejection of interferences (Rashkovskii, 2012). The broadening of bandwidth of received signal increase the sensitivity of the receivers significantly and let us to investigate the angular structure about one hundred radio sources. A software package had been developed that allows: preparing a program of observations, carrying out observations automatically, making data cross-correlation, calculating visibility functions for all pairs of antennae, and fitting models of an angular structure of the sources. Data storage formats were elaborated for each stage of recording or processing. At present, new digital radio astronomy receiver DSPZ have been developed by IRA NASU (Zakharenko, 2016). The receiver allows recording an entire bandwidth of signals of a decameter range from 8 to 32 MHz. It is used at UTR-2 and URAN radio telescopes operated in a single dish mode. Application of the receivers for interferometer observation with the URAN network provides additional advantages in accuracy and sensitivity of studies. In this report we consider the data formats and synchronization methods used in URAN equipment and DSPZ receivers, and discuss algorithms of their transformation. Newly elaborated software is described, that allows selecting a set of frequency bands of signals recorded with DSPZ and converting them to the form used by the URAN software. This approach allows us to carry out the interferometer observations in an the extended frequency range provided by DSPZ and to use as much as possible the software package developed for the URAN network for data reduction.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 219-221 (2017) | Рубрика: 18

Shestopalov V.A.

 

Gorbanev Yu.M., Stogneeva I.A., Shestopalov V.A., Knyazkova E.F., Kimakovskaya I.I., Kimakovsky S.R., Golubaev A.V. «The effect of major meteor streams on the total ozone in the earth's atmosphere» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 209-218 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114643 The correlation between the total ozone and activity of major meteor streams, such as the Perseids, Geminids, Leonids and Orionids, has been found using the Total Ozone Mapping Spectrometer (TOMS) measurements of the global ozone distribution over the periods 1978–1993 and 1996–2001. The autocorrelation analysis of the total ozone time series for the period of about 20 years has confirmed the existence of regular changes in the ozone levels at the peaks of meteor shower activity. It has been established that TO decreases after the dates of peak activity of meteor streams (e.g. the Perseids) or during the whole periods of meteor shower activity (e.g. the Geminids, Orionids and Leonids). The analysis of the total ozone distribution (in the Southern and Northern Hemispheres), as well as the local distribution of ozone (over the selected surface area of several hundred square kilometres), was performed during the Leonid meteor shower in 1999. The atmospheric zones for which the ozone distribution pattern can be described as a result of interaction between the meteor shower material and the ozone layer were localised by applying the TOMS data. Such zones correspond to the regions where the highest Leonid activity has been observed. According to the radar observations (conducted in Kazan, Russian Federation), three activity maxima of the 1988 Geminid shower were reported: on the nights of 7, 12 and 14th December, 1988. The TO decrease was observed on the same dates. Thus, the analysis of the TO changes during the periods of intense meteor shower’s activity enables to preliminary assess the maximum overall decline in the total ozone concentration which makes about 5 DU over two weeks. From the results obtained it can be inferred that the ozone layer can be used as an indicator of the interaction between the meteoric material and the Earth’s atmosphere.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 209-218 (2017) | Рубрика: 18

Shevchenko S.Yu.

 

Shevchenko S.Yu., Tugay A.V. «Determination of the galaxy cluster orientation using x-ray images by FOCAS method» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 45-47 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114263 In our work we considered orientations of bright X-ray halos of the galaxy clusters (mainly Abell clusters). 78 appropriate clusters were selected using data from Xgal sample of extragalactic objects in XMM-Newton observation archive. Position angles and eccentricities of these halos were calculated applying FOCAS method. No privileged orientations were found.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 45-47 (2017) | Рубрика: 18

Shulga O.V.

 

Pomazan A.V., Maigurova N.V., Shulga O.V. «The astrometric results of observations of periodical comets at KT-50 telescope in RI “MAO”» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 190-193 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114490 The astrometric results of the observations of 10 periodical comets in 2017 are presented. The observations were made with telescope KT-50 telescope in RI «Mykolaiv Astronomical Observatory». The differences between the measured from observations (O) and calculated from ephemeris (C) positions and their mean square errors (MSE) were calculated. The ephemeris positions were taken from online computation service HORIZONS (JPL NASA, USA). For the measured positions the average MSE values are 0.17" in right ascension and 0.18" in declination respectively. Analysis of the values (О–C) before and after additions of obtained positions to Minor Planet Center (MPC) database revealed a gradual decrease of these differences with respect to the ephemeris. This indicates that the using of the new high-precision positions allows us to refine the calculated ephemeris. As well improvement and lengthening of the astrometric datasets play important role in the modeling of the cometary nongravitational effects.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 190-193 (2017) | Рубрика: 18

Kulichenko M.O., Shulga O.V., Shulga O.V. «Double station observation of meteors with low baseline in Mykolaiv» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 230-231 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114685 Results of single and double station observations of meteors using TV CCD techniques which were conducted in 2013–2016 in Mykolaiv astronomical observatory (RI MAO) are shown in the article.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 230-231 (2017) | Рубрика: 18

Sidorenkov N.S.

 

Sidorenkov N.S., Wilson Ian «Influence of solar retrograde motion on terrestrial processes» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 246-249 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114695 The influence of solar retrograde motion on secular minima of solar activity, volcanic eruptions, climate changes, and other terrestrial processes is investigated. Most collected data suggest that secular minima of solar activity, powerful volcanic eruptions, significant climate changes, and catastrophic earthquakes occur around events of solar retrograde motion.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 246-249 (2017) | Рубрика: 18

Smerechynskyi S.V.

 

Smerechynskyi S.V., Dzikovskyi D.V. «Model of magnetic degenerate dwarf» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 128-134 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114380 Ключевые слова: degenerate dwarf, critical mass, relativistic parameter, spin-polarization

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 128-134 (2017) | Рубрика: 18

Stashko O.S.

 

Stashko O.S., Zhdanov V.I. «Disconnected regions of stable circular orbits in presence of massive scalar field» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 48-50 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114270 We study circular orbits around a static spherically symmetric configuration of General Relativity in presence of a nonlinear massive scalar field (SF). The problem deals with a family of solutions to Einstein – SF equations with the SF potentials that are negative for some SF values in order to consider black hole configurations. We show that, for some parameters of the family, there can exist two disconnected regions of stable circular orbits around the configuration. Such regions can exist both for black hole and fornaked singularities.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 48-50 (2017) | Рубрика: 18

Stogneeva I.A.

 

Gorbanev Yu.M., Stogneeva I.A., Shestopalov V.A., Knyazkova E.F., Kimakovskaya I.I., Kimakovsky S.R., Golubaev A.V. «The effect of major meteor streams on the total ozone in the earth's atmosphere» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 209-218 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.114643 The correlation between the total ozone and activity of major meteor streams, such as the Perseids, Geminids, Leonids and Orionids, has been found using the Total Ozone Mapping Spectrometer (TOMS) measurements of the global ozone distribution over the periods 1978–1993 and 1996–2001. The autocorrelation analysis of the total ozone time series for the period of about 20 years has confirmed the existence of regular changes in the ozone levels at the peaks of meteor shower activity. It has been established that TO decreases after the dates of peak activity of meteor streams (e.g. the Perseids) or during the whole periods of meteor shower activity (e.g. the Geminids, Orionids and Leonids). The analysis of the total ozone distribution (in the Southern and Northern Hemispheres), as well as the local distribution of ozone (over the selected surface area of several hundred square kilometres), was performed during the Leonid meteor shower in 1999. The atmospheric zones for which the ozone distribution pattern can be described as a result of interaction between the meteor shower material and the ozone layer were localised by applying the TOMS data. Such zones correspond to the regions where the highest Leonid activity has been observed. According to the radar observations (conducted in Kazan, Russian Federation), three activity maxima of the 1988 Geminid shower were reported: on the nights of 7, 12 and 14th December, 1988. The TO decrease was observed on the same dates. Thus, the analysis of the TO changes during the periods of intense meteor shower’s activity enables to preliminary assess the maximum overall decline in the total ozone concentration which makes about 5 DU over two weeks. From the results obtained it can be inferred that the ozone layer can be used as an indicator of the interaction between the meteoric material and the Earth’s atmosphere.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 209-218 (2017) | Рубрика: 18

Strakhova S.

 

Koshkin N.I., Savanevich V., Pohorelov A., Shakun L., Zhukov V., Korobeynikova E., Strakhova S., Moskalenko S., Kashuba V., Krasnoshchokov A. «Ukrainian database and atlas of light curves of artificial space objects» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 226-229 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.117655 This paper describes the Ukrainian database of long-term photometric observations of resident space objects (RSO). For the purpose of using this database for the outer space monitoring and space situational awareness (SSA) the open internet resource has been developed. The paper shows examples of using the Atlas of light curves of RSO's for analyzing the state of rotation around the center of mass of several active and non-functioning satellites in orbit.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 226-229 (2017) | Рубрика: 18

Shakun L., Koshkin N., Korobeynikova E., Strakhova S., Dragomiretsky V., Ryabov A., Melikyants S., Golubovskaya T., Terpan S. «Accuracy of satellite optical observations and precise orbit determination» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 242-245 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.117660 The monitoring of low-orbit space objects (LEO-objects) is performed in the Astronomical Observatory of Odessa I.I. Mechnikov National University (Ukraine) for many years. Decades-long arсhives of these observations are accessible within Ukrainian network of optical observers (UMOS). In this work, we give an example of orbit determination for the satellite with the 1500-km height of orbit based on angular observations in our observatory (Int. No. 086). For estimation of the measurement accuracy and accuracy of determination and propagation of satellite position, we analyze the observations of Ajisai satellite with the well-determined orbit. This allows making justified conclusions not only about random errors of separate measurements, but also to analyze the presence of systematic errors, including external ones to the measurement process. We have shown that the accuracy of one measurement has the standard deviation about 1 arcsec across the track and 1.4 arcsec along the track and systematical shifts in measurements of one track do not exceed 0.45 arcsec. Ajisai position in the interval of the orbit fitting is predicted with accuracy better than 30 m along the orbit and better than 10 m across the orbit for any its point.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 242-245 (2017) | Рубрика: 18

Szanyi István

 

Jenkovszky László, Szanyi István «High-energy diffraction and duality relations» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 27-34 (2017)

DOI: https://doi.org/10.18524/1810-4215.2017.30.115466 Relations between elastic and inelastic diffraction due to Regge factorisation and pomeron dominance are discussed in the light of the new phenomena discovered at the LHC in nearly forward scattering.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 30, с. 27-34 (2017) | Рубрика: 18