Khlamov S.V., Savanevych V.E., Briukhovetskyi O.V., Dikov E.N., Vavilova I.B. «Development and improvements of computational methods implemented to the Colitec software» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 211-215 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144076

Baranov A.M., Saveljev E.V. «Exact solutions of the conformally flat universe. I. The evolution of model as the problem about a particle movement in a force field» Пространство, время и фундаментальные взаимодействия, № 3, с. 27-36 (2020)

The problem reduction of an evolution modelling of the open Universe for conformally flat space-time metric in Fock’s form to an equivalent problem of a particle movement with an unit mass in a force field is demonstrated. The exact cosmological models filled with a substance and radiation in an approximation of the perfect fluid are found since the Friedman solution by means an introduction of set "mechanical" potentials. In the article the possibility of deriving from the Einstein equations exact cosmological solutions for the open Universe by reduction to the equivalent problem of a mass particle motion in the force field is considered. The cosmological model is filled by substance in an approximation of the perfect fluid with nonzero pressure, generally speaking. The metric of 4D space-time is taken in the Fock form as the metric conformal to the Minkowski metric. This metric has the dependence on one variable. A square of the variable is product of advanced and retarded times. The using of mechanical interpretation of the gravitation equations leads to a possibility of consideration of various mechanics force fields with the subsequent physical interpretation of the found exact cosmological solutions. First of all a movement of a free particle with an unit mass (a mechanical force equals to zero) is considered,i.e. the particle moves on inertia. The fourth degree of discovered law of movement is a conformal factor of the cosmological metric which is conformally flat. This case corresponds to the exact cosmological solution without pressure, coinciding with known the Friedman solution for the open Universe. After that the force field leading to uniformly decelerated motion of a particle is considered. The force potential is taken in the form of linear function. The tangent of a slope angle of the function curve coincides with particle acceleration. Such research leads to the exact cosmological solution asymptotically describing both an incoherent dust, and the ultrarelativistic substance which may be interpreted as an equilibrium radiation. Further a square-law function without a linear term and a constant value is taken as a force potential. Such potential can be interpreted as potential of the free oscillator. The solution of corresponding equation of motion is written down in the form of a cosine function with some initial phase related to the ratio between parameters which define dust-like and ultrarelativistic substance. This conclusion becomes obvious after concidering asymptotic behaviour of pressure and energy density. Besides, the series expansion of a root of the fourth degree from a conformal factor asymptoticly coincides with the law of uniformly decelerated motion in previous case that indicates its particular character.

Serdyukova M.A., Serdyukov A.N. «A massive gravitational field in flat spacetime. IV. The secular drift of atomic spectra and optics of type Ia supernovae» Проблемы физики, математики и техники, № 3, с. 42-55 (2021)

Космологическое приложение предложенной ранее в рамках СТО калибровочно-инвариантной теории массивного гравитационного поля предсказывает существование во Вселенной динамически однородного фонового гравитационного поля с единственной ненулевой временной компонентой, которое доминирует во Вселенной, управляя ее циклической эволюцией посредством сбалансированного обмена энергией с гравитирующей материей. Предшествующее и продолжающееся увеличение энергии покоя атомов прекрасно объясняет космологическое красное смещение их спектров без гипотетического разбегания далеких галактик. Превосходное численное согласие теории с наблюдательными оптическими данными от сверхновых типа Ia достигнуто в результате фитирования только двух параметров: возраста текущего цикла (24 млрд лет) и текущего значения скалярной фоновой напряженности, выраженную через постоянную Хаббла (68 км/с/Мпс). Предсказанное космологическое ускорение распада нестабильных ядер и частиц подтверждается растяжением кривых блеска сверхновых Ia с коэффициентом (1+z), наблюдаемое послесвечение которых происходит за счет высокоэнергетических фотонов гамма-излучения, испускаемых в цепочке бета-распадов ⁵⁶Ni→⁵⁶Co→⁵⁶Fe.

Serdyukova M.A., Serdyukov A.N. «A massive gravitational field in flat spacetime. IV. The secular drift of atomic spectra and optics of type Ia supernovae» Проблемы физики, математики и техники, № 3, с. 42-55 (2021)

Космологическое приложение предложенной ранее в рамках СТО калибровочно-инвариантной теории массивного гравитационного поля предсказывает существование во Вселенной динамически однородного фонового гравитационного поля с единственной ненулевой временной компонентой, которое доминирует во Вселенной, управляя ее циклической эволюцией посредством сбалансированного обмена энергией с гравитирующей материей. Предшествующее и продолжающееся увеличение энергии покоя атомов прекрасно объясняет космологическое красное смещение их спектров без гипотетического разбегания далеких галактик. Превосходное численное согласие теории с наблюдательными оптическими данными от сверхновых типа Ia достигнуто в результате фитирования только двух параметров: возраста текущего цикла (24 млрд лет) и текущего значения скалярной фоновой напряженности, выраженную через постоянную Хаббла (68 км/с/Мпс). Предсказанное космологическое ускорение распада нестабильных ядер и частиц подтверждается растяжением кривых блеска сверхновых Ia с коэффициентом (1+z), наблюдаемое послесвечение которых происходит за счет высокоэнергетических фотонов гамма-излучения, испускаемых в цепочке бета-распадов ⁵⁶Ni→⁵⁶Co→⁵⁶Fe.

Serenkova I.A., Pankov A.A. «International nuclear data centers network and prospects of its use in nuclear power in Belarus» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 37 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182523

Sergijenko O. «2-field model of dark energy with canonical and non-canonical kinetic terms» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 38-41 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144667

Kotvytskiy A.T., Shablenko V.Yu., Bronza E.S. «Fixed points of mapping of N-point gravitational lenses» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 24-28 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144558

Kotvytskiy A.T., Bronza S.D., Shablenko V.Yu. «Images distribution of binary symmetrical gravitational lens» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 24-28 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182511

Bushuev F., Kaliuzhnyi M., Mazhaev O., Shulga O., Shakun L., Bezrukovs V., Reznichenko O., Moskalenko S., Malynovskyi Ye. «External comparison satellite positions obtained by the network of passive correlation ranging of geostationary telecommunication satellites» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 171-173 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145360

Koshkin N., Shakun L., Korobeynikova E., Melikyants S., Strakhova S., Dragomiretsky V., Ryabov A., Golubovskaya T., Terpan S. «Monitoring of Space Debris Rotation Based on Photometry» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 179-185 (2018)

https://doi.org/10.18524/1810-4215.2018.31.147807

Koshkin N.I., Melikyants S., Korobeinikova E., Shakun L., Strakhova S., Kashuba V., Romanyuk Ya., Terpan S. «Simulation of the orbiting spacecraft to analysis and understand their rotation based on photometry» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 158-161 (2019)

https://doi.org/10.18524/1810-4215.2019.32.183899

Tvardovskyi D.E., Marsakova V.I., Andronov I.L., Shakun L.S. «Period variations and possible third components in the eclipsing binaries AH Tauri and ZZ Cassiopeiae» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 103-109 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145280

Shakun L.S. «Features of Kotlin orbit estimation library» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 191-195 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145962

Shatokhina S ., Kazantseva L.V., Andruk V.M. «The re-processing results of photographic observations of asteroids with GAIA catalog at the MAO NAS of Ukraine» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 199-202 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181731

Andruk V., Eglitis I., Protsyuk Yu., Akhmetov V., Pakuliak L., Shatokhina S., Yizhakevych O. «Photometry of stars for astronegatives with a single exposure» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 181-184 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181596

Eglitis I., Yizhakevych O., Shatokhina S., Protsyuk Yu., Andruk V. «Asteroid search results for digitized astroplates of 1.2m telescope in Baldone» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 189-191 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181599

Shatokhina S.V., Relke H., Yuldoshev Q., Andruk V.M., Protsyuk Yu.I., Muminov M. «Asteroids search results in digitized observations of the Northern Sky Survey project (Kitab part)» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 235-238 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144679

Andruk V.M., Pakuliak L.K., Eglitis I., Yuldoshev Q., Mullo-Abdolov A., Shatokhina S.V., Yizhakevych O.M., Protsyuk Yu.I., Relke H., Akhmetov V.S., Muminov M.M., Ehgamberdiev Sh.A., Kokhirova G. «On the FON astroplate project accomplishment» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 185-188 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181558

Shatokhina S.V., Yizhakevych O.M., Protsyuk, Yu.I., Kazantseva L.V., Pakuliak L.K., Eglitis I., Relke H., Yuldoshev Q.X., Mullo-Abdolov A.Sh., Andruk V.M. «On the "solar system small bodies" astroplate project of the Ukrainian virtual observatory» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 203-207 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181732

Oknyansky V.L, Shenavrin V.I., Metlova N.V., Gaskell C.M. «Additional support for relative wavelength independence of IR lags in NGC 4151 over the past decade» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 94-99 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144622

Shepelev V.A., Melnik V.N., Vashchishin R.V. «Preliminary results of interferometric observations of the quiet Sun at the frequencies 8–32 MHz» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 159-162 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144687

Andrievsky S.M., Shereta A., Khrapaty S.V, Korotin S.A., Kovtyukh V.V., Kashuba V.I. «Diffuse interstellar band 6202 A as an indicator of organic matter in cosmos: Cepheid spectra» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 52-54 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182049

Shereta E., Carraro G., Gorbaneva T., Mishenina T. «Molybdenum abundance in some open clusters» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 100-102 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144691

Voitsekhovskiy V.V., Tugay A., Tkachuk V.V., Shevchenko S.Yu. «X-ray emission of ICRF sources» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 47-51 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144692

Tugay A.V., Shevchenko S.Yu. «Infrared counterparts of X-ray galaxies» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 42-45 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182531

Shlensky O.F., Antonov S.I., Khischenko K.V. Non-Rayleigh acoustics (2020). 118 с.

A new aspect of the wave theory of sound propagation without simplifications and assumptions of traditional Rayleigh acoustics is proposed for the first time with regard to gas anisotropy. The book is addressed to practical engineers and research workers specialized in sound physics

Tevjashev A.D., Shostko I.S., Neofitnyi M.V., Kolomiyets S.V., Kyrychenko I.Yu., Pryimachov Yu.D. «Mathematical model and method of optimal placement of optical-electronic systems for trajectory measurements of air objects at test» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 171-175 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182231

Jenkovszky L., Shpenik A., Svintozelskyi V. «Glueballs» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 14-19 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181752

Protsyuk Yu.I., Shukhratov Sh.Sh., Kovalchuk O.M., Muminov M.M., Yuldoshev Q.H., Abdurakhimov R.R., Andruk V.M. «Results of processing of CCD observations of selected open clusters on Maidanak» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 231-234 (2018)

https://doi.org/10.18524/1810-4215.2018.31.146275

Usenko I.A., Miroshnichenko A.S., Danford S., Kovtyukh V.V., Turner D.G., Shulga A.V., Protsyuk Yu.I. «Spectroscopic investigations of galactic clusters with associated Cepheid variables. I. Polaris cluster and α Umi» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 113-116 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145379

Kulichenko M.O., Shulga A.V. «Radiants and orbital distribution of TV faint sporadic meteors» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 186-190 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145340

Maigurova N.V., Pomazan A.V., Shulga A.V. «HIgh-precision follow-up observations of near-earth objects» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 216-219 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144562

Bushuev F., Kaliuzhnyi M., Khalaley M., Kryuchkovskiy V., Kulichenko M., Shulga O. «Doppler station for orbital tracking of low-orbit spacecrafts by their radio beacon signals» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 167-170 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144550

Bushuev F., Kaliuzhnyi M., Mazhaev O., Shulga O., Shakun L., Bezrukovs V., Reznichenko O., Moskalenko S., Malynovskyi Ye. «External comparison satellite positions obtained by the network of passive correlation ranging of geostationary telecommunication satellites» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 171-173 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145360

Kaliuzhnyi M., Zhang Z., Bushuev F., Shulga O., Bezrukovs V., Reznichenko O., Melnychuk S., Malynovskyi Y. «Ongoing operation and perspectives of simple VLBI networks of geostationary satellites monitoring» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 148-150 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181905

Kriuchkovskyi V., Bushuev F., Kaliuzhnyi M., Khalaley M., Kulichenko M., Shulga O. «First results of clarifying of orbital elements of low-orbit spacecraft using observations of the RI "MAO" doppler station» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 162-164 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181906

Kulichenko M.O., Shulga O., Gorbanev Yu.M. «Results of positional and photometric measurements of meteor trajectories observed in Mykolaiv 2017-2018» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 165-167 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181908

Osmayev O.A., Shuvalova Yu S, Bronza E.S., Matvienko K.I. «Some corollary facts of the n-point gravitational lens equation in a complex form» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 29-32 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182518

Sidorchuk M.A., Vasilenko N.M., Ulyanov O.M., Konovalenko O.O., Mukha D.V., Abramenkov E.A., Sidorchuk K.M., Miasoied A.I. «50 years of research in continuum at the UTR-2 radio telescope» Радиофизика и радиоастрономия (Украина), 26, № 4, с. 287-313 (2021)

Purpose: The results of research in continuum decameter-wave radio emission of the Galaxy background, ionized hydrogen regions, supernova remnants, extragalactic discrete sources, extended galaxies, galactic clusters, extragalactic background are given. The aim of this work is reviewing the results achieved for over 50-years of the UTR-2 radiotelescope research of our Galaxy and its population, as well as extragalactic radio sources in the continuum radio emission spectrum at extremely low frequencies for the ground based observations. Design/methodology/approach: The review, analysis, collection of archival data in various publications related to the subjectof this work. Findings: The basic results of studying the ionized hydrogen regions, supernova remnants, Galaxy background emission and its large-scale structure are given, and the maps of these sources are obtained. The catalog of extragalactic discrete radio sources of the most Northern sky part and the cosmological conclusions based on its analysis are described; the estimate of the isotropic extragalactic background brightness temperature is obtained; for the first time, the observational results for the Andromeda galaxy and two galactic clusters Coma and A2255 are given briefly. Conclusions: All the results presented here emphasize the uniqueness and importance of research in the decameter wavelength range, and the large area, flexibility of structure, continuous improvement make the UTR-2 radio telescope an indispensable tool for solving the most important tasks of modern radio astronomy, despite its respectable age. For example, only in the range of 10 to 30 MHz the ionized part of the most common element in the universe, the hydrogen, becomes optically thick and begins to absorb the synchrotron emission on the line of sight, which allows rather easy separation of thermal and non-thermal components of radioemission. This property allows to determine the ionized hydrogen regions’ electron temperature and the electron concentration on the line of sight independently in studying the hydrogen emission regions. When studying the supernova remnants, we can determine the ionized matter location by their spectrum drops – before, inside or behind the remnant. Based on the HB3 supernova remnant radio imagies, an assumption was made on the existence of an ionized hydrogen relic shell aroundit, being caused by the initial ultraviolet flash of a supernova. For the first time, the maps of the Northern sky large-scale structure in the declination range from –15 to +85° at extremely low frequencies 10, 12.6, 14.7, 16.7, 20 and 25 MHz for the ground-based observations are published, which, besides their own scientific value, may allow to correct the UTR-2 radio telescope imaging results. Using the full-resolution UTR-2 maps and the developed method of multifrequency T–T diagrams, it was possible to separate the background radiation into galactic and extragalactic components and construct the spectrum of the latter. From the analysis of the most complete decameter wavelength range catalog of discrete sources, it follows that there is a gap in the redshift spatial distribution for all classes of extragalactic sources. The existence of an ionized hydrogen ring in the Andromeda Nebula disk has been suggested. It is shown that the main partof the galaxy clusters decameter-wave emission comes from haloes and relics.

Sidorchuk M.A., Vasilenko N.M., Ulyanov O.M., Konovalenko O.O., Mukha D.V., Abramenkov E.A., Sidorchuk K.M., Miasoied A.I. «50 years of research in continuum at the UTR-2 radio telescope» Радиофизика и радиоастрономия (Украина), 26, № 4, с. 287-313 (2021)

Purpose: The results of research in continuum decameter-wave radio emission of the Galaxy background, ionized hydrogen regions, supernova remnants, extragalactic discrete sources, extended galaxies, galactic clusters, extragalactic background are given. The aim of this work is reviewing the results achieved for over 50-years of the UTR-2 radiotelescope research of our Galaxy and its population, as well as extragalactic radio sources in the continuum radio emission spectrum at extremely low frequencies for the ground based observations. Design/methodology/approach: The review, analysis, collection of archival data in various publications related to the subjectof this work. Findings: The basic results of studying the ionized hydrogen regions, supernova remnants, Galaxy background emission and its large-scale structure are given, and the maps of these sources are obtained. The catalog of extragalactic discrete radio sources of the most Northern sky part and the cosmological conclusions based on its analysis are described; the estimate of the isotropic extragalactic background brightness temperature is obtained; for the first time, the observational results for the Andromeda galaxy and two galactic clusters Coma and A2255 are given briefly. Conclusions: All the results presented here emphasize the uniqueness and importance of research in the decameter wavelength range, and the large area, flexibility of structure, continuous improvement make the UTR-2 radio telescope an indispensable tool for solving the most important tasks of modern radio astronomy, despite its respectable age. For example, only in the range of 10 to 30 MHz the ionized part of the most common element in the universe, the hydrogen, becomes optically thick and begins to absorb the synchrotron emission on the line of sight, which allows rather easy separation of thermal and non-thermal components of radioemission. This property allows to determine the ionized hydrogen regions’ electron temperature and the electron concentration on the line of sight independently in studying the hydrogen emission regions. When studying the supernova remnants, we can determine the ionized matter location by their spectrum drops – before, inside or behind the remnant. Based on the HB3 supernova remnant radio imagies, an assumption was made on the existence of an ionized hydrogen relic shell aroundit, being caused by the initial ultraviolet flash of a supernova. For the first time, the maps of the Northern sky large-scale structure in the declination range from –15 to +85° at extremely low frequencies 10, 12.6, 14.7, 16.7, 20 and 25 MHz for the ground-based observations are published, which, besides their own scientific value, may allow to correct the UTR-2 radio telescope imaging results. Using the full-resolution UTR-2 maps and the developed method of multifrequency T–T diagrams, it was possible to separate the background radiation into galactic and extragalactic components and construct the spectrum of the latter. From the analysis of the most complete decameter wavelength range catalog of discrete sources, it follows that there is a gap in the redshift spatial distribution for all classes of extragalactic sources. The existence of an ionized hydrogen ring in the Andromeda Nebula disk has been suggested. It is shown that the main partof the galaxy clusters decameter-wave emission comes from haloes and relics.

Vasilenko N.M., Sidorchuk M.A. «UTR-2 low frequency continuum survey of the northhen sky. Part II» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 110-113 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182536

Sidorenkov N.S., Wilson Ian «Peregee-syzygy tides in atmosphere» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 137-141 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181910

Panko E., Sirginava A., Stepaniuk A. «Detailed morphology of the rich concentrated galaxy clusters» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 29-32 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145315

Sobitnyak L.I., Ryabov M.I., Sukharev A.L., Orlyuk M.I., Romenets A.O., Sumaruk Yu.P. «The catalog of magnetic storms for Odessa magnetic anomaly zone» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 163-166 (2018)

https://doi.org/10.18524/1810-4215.2018.31.146662

Ryabov M.I., Sobitnyak L.I. «Study of effects of lunar tidal wave passage in upper atmosphere of Earth according to monitoring data at radio telescope «URAN-4» RI NANU» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 132-136 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182539

Eglitis I., Sokolova A. «Distribution of carbon stars in the Galaxy» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 70-74 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144459

Vidmachenko A.P., Steklov A.F. «Material of cometary nuclei and asteroids can be studied in the Earth's orbit» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 176-177 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181911

Panko E., Sirginava A., Stepaniuk A. «Detailed morphology of the rich concentrated galaxy clusters» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 29-32 (2018)

https://doi.org/10.18524/1810-4215.2018.31.145315

Stepkin S.V., Konovalenko O.O., Vasylkivskyi Y.V., Mukha D.V. «Interstellar medium and decameter radio spectroscopy» Радиофизика и радиоастрономия (Украина), 26, № 4, с. 314-325 (2021)

Purpose: The analytical review of the main results of research in the new direction of the low-frequency radio astronomy, the interstellar medium radio spectroscopy at decameter waves, which had led to astrophysical discovery, recording of the radio recombination lines in absorption for highly excited states of interstellar carbon atoms (more than 600). Design/methodology/approach: The UTR-2 world-largest broadband radio telescope of decameter waves optimally connected with the digital correlation spectrum analyzers has been used. Continuous modernization of antenna system and devices allowed increasing the analysis band from 100 kHz to 24 MHz and a number of channels from 32 to 8192. The radio telescope and receiving equipment with appropriate software allowed to have a long efficient integration time enough for a large line series simultaneously with high resolution, noise immunity and relative sensitivity. Findings: A new type of interstellar spectral lines has been discovered and studied, the interstellar carbon radio recombination lines in absorption for the record high excited atoms with principal quantum numbers greater than 1000. The line parameters (intensity, shape, width, radial velocity) and their relation ship with the interstellar medium physical parameters have been determined. The temperature of line forming regions is about 100 K, the electron concentration up to 0.1 cm^–3 and the size of a line forming region is about 10 pc. For the first time, radio recombination lines were observed in absorption. They have significant broadening and are amplified by the dielectronic-like recombination mechanism and are also the lowest frequency lines in atomic spectroscopy. Conclusions: The detected low-frequency carbon radio recombination lines and their observations have become a new highly effective tool for the cold partially ionized interstellar plasma diagnostics. Using them allows obtaining the information which is not available with the other astrophysical methods. For almost half a century of their research, a large amount of hardware-methodical and astrophysical results have been obtained including a record number of Galaxy objects, where there levant lines have been recorded. The domestic achievements have stimulated many theoretical and experimental studies in other countries, but the scientific achievements of Ukrainian scientists prove the best prospects for further development of this very important area of astronomical science.

Koshkin N., Shakun L., Korobeynikova E., Melikyants S., Strakhova S., Dragomiretsky V., Ryabov A., Golubovskaya T., Terpan S. «Monitoring of Space Debris Rotation Based on Photometry» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 179-185 (2018)

https://doi.org/10.18524/1810-4215.2018.31.147807

Koshkin N.I., Melikyants S., Korobeinikova E., Shakun L., Strakhova S., Kashuba V., Romanyuk Ya., Terpan S. «Simulation of the orbiting spacecraft to analysis and understand their rotation based on photometry» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 158-161 (2019)

https://doi.org/10.18524/1810-4215.2019.32.183899

Sobitnyak L.I., Ryabov M.I., Sukharev A.L., Orlyuk M.I., Romenets A.O., Sumaruk Yu.P. «The catalog of magnetic storms for Odessa magnetic anomaly zone» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 163-166 (2018)

https://doi.org/10.18524/1810-4215.2018.31.146662

Sobitnyak L.I., Ryabov M.I., Sukharev A.L., Orlyuk M.I., Romenets A.O., Sumaruk Yu.P. «The catalog of magnetic storms for Odessa magnetic anomaly zone» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 163-166 (2018)

https://doi.org/10.18524/1810-4215.2018.31.146662

Jenkovszky L., Shpenik A., Svintozelskyi V. «Glueballs» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 14-19 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181752

Bronza S.D., Svyrydova Ju.V., Kotvytska L.A. «The analysis of images of a circular source in n-point gravitational lenses» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 6-10 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144434