Odessa Astronomical Publications最新文献_第5页

DISCOVERY OF A NEW [WR] STAR 一颗新恒星的发现

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.267997

A. F. Abdulkarimova, O. Maryeva, S. Karpov

引用次数: 0

PHYSICAL PROPERTIES OF “HOT POPULATION” OBJECTS IN THE KUIPER BELT KUIPER带中“热人口”物体的物理性质

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268732

N. Okhotko, V. Troianskyi, O. Bazyey

引用次数: 0

REFINED PHYSICAL PROPERTIES OF THE HD327083 BINARY SYSTEM hd327083二进制系统的精细物理特性

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268106

A. S. Nodyarov, A. Miroshnichenko, S. Khokhlov, S. Zharikov, N. Manset, I. Usenko

引用次数: 1

PREDICTION OF THE AMPLITUDE OF 25 TH SOLAR CYCLE USING THE RATE OF INCREASE OF SOLAR ACTIVITY 利用太阳活动的增加速率预测第25太阳周期的振幅

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268201

V. Efimenko, V. Lozitsky

{"title":"PREDICTION OF THE AMPLITUDE OF 25 TH SOLAR CYCLE USING THE RATE OF INCREASE OF SOLAR ACTIVITY","authors":"V. Efimenko, V. Lozitsky","doi":"10.18524/1810-4215.2022.35.268201","DOIUrl":"https://doi.org/10.18524/1810-4215.2022.35.268201","url":null,"abstract":"A prediction of the amplitude of the 25th cycle of solar activity is proposed based on the analysis of data on 24 previous solar cycles, which relate to the statistical relationship between the rate of increase in the number of sunspots in the phase of the growth curve and the amplitude of the cycle. It turned out that the forecasting result depends on which section of the growth curve is taken as the basis for forecasting, as well as whether all 24 cycles are taken into account, or only the odd ones. The prediction result is also affected by the initial assumption about monotonicity or non-monotonicity of the growth phase. A comparison of the rates of sunspot growth in different parts of the growth phase of different cycles shows that the current cycle #25 does not show early signs of non monotonic growth similar to those observed in the 24th cycle. It was concluded that, most likely, the maximum smoothed number of sunspots in the 25th cycle W max (25) should be equal to 185 ± 18 units in the new system, which corresponds to the average power of the solar cycle, with the implementation of the Hnievyshev-Ohl rule. However, if cycle #25 will still have a non-monotonic curve of the growth phase, similar to such a curve in the previous cycle #24, then W max (25) » 130. With such parameters of this cycle, there are no signs of approaching the deep minimum of the age cycle in the middle 21st century. This does not exclude the fact that this deep age minimum can occur suddenly and sharply immediately after the 25th cycle, as was the case, for example, in the Dalton minimum.","PeriodicalId":34039,"journal":{"name":"Odessa Astronomical Publications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45890955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TIME AND GEOLOCATION UNCERTAINTIES AS COMPONENTS OF THE ACCURACY OF NEAS’ GROUND-BASED OBSERVATIONS 时间和地理位置的不确定性是影响卫星地面观测精度的因素

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268214

A. Pomazan, N. Maigurova, O. Kozhuhov

{"title":"TIME AND GEOLOCATION UNCERTAINTIES AS COMPONENTS OF THE ACCURACY OF NEAS’ GROUND-BASED OBSERVATIONS","authors":"A. Pomazan, N. Maigurova, O. Kozhuhov","doi":"10.18524/1810-4215.2022.35.268214","DOIUrl":"https://doi.org/10.18524/1810-4215.2022.35.268214","url":null,"abstract":"The one of main tasks for solving the as teroid-cometary hazard problem is cataloging all objects that might come extremely close to Earth and pose a poten tial threat of collision. The reliability of their orbits significantly depends on the quality and the statistical treatment of astrometric observations, which are obtained by different observers and different techniques. Statistical analysis of the IAU MPC observational array of the small Solar system bodies and the development of a scheme for assigning weights to individual observation sets are im portant for performing asteroid orbit determination and refinement. Errors in the positions of asteroids associated with errors in the reference catalogs, observation epoch, observed brightness and rate of motion are considered in sufficient detail in investigations of Chesley et al. (2010), Farnocchia (2015), Vereš et al. (2017). Timing and geolo cation uncertainties of the observer are less discussed in the literature. But in the case of observations of NEAs, espe cially at the moments of the close approaches to the Earth, timing errors and errors in the observatory's geolocation can significantly affect the accuracy of the obtained positions. Residual differences (O - C) in the equatorial coordinate system are usually used to search and identify functional errors dependencies. To detect errors caused by timing uncertainties, instead of residual differences (О - С) in equatorial coordinates, it is more convenient to use their along-track and cross-track representation. The cross-track differences are independent of timing errors and indicate only astrometric errors. On the other hand, timing errors are fully contained in the along-track component. Here we present the simulation results of such errors and analysis using an array of observations from three observatories for the period 2017 - 2022. The array con tains more than 18,000 positions of about 900 objects. Most of the objects belong to the group of NEAs, which include PHAs during close approaches to the Earth.","PeriodicalId":34039,"journal":{"name":"Odessa Astronomical Publications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44664676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DETERMINATION DEGRADATION OF SATELLITE SURFACE OPTICAL FEATURES BY PHOTOMETRIC METHOD 光度法测定卫星表面光学特性退化

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268215

P. Sukhov, V. Yepishev, K. Sukhov, A. L. Pavlovskyi, Sergei A. Mamrai

{"title":"DETERMINATION DEGRADATION OF SATELLITE SURFACE OPTICAL FEATURES BY PHOTOMETRIC METHOD","authors":"P. Sukhov, V. Yepishev, K. Sukhov, A. L. Pavlovskyi, Sergei A. Mamrai","doi":"10.18524/1810-4215.2022.35.268215","DOIUrl":"https://doi.org/10.18524/1810-4215.2022.35.268215","url":null,"abstract":"A method is described for using photometric data to estimate the reflective properties of a satellite's surface material under conditions of its long stay in space. The technique of multicolour photometric B,V,R observations of several geostationary satellites built on different types of tires is shown, and the results obtained over a period of 3 to 9 years. These are geostationary satellites Astra 2E (on the Eurostar E3000 bus), Azerspace 2/Intelsat 38 (on the SSL-1300 bus), Sicral 2 (on the Spacebus-4000B2 platform) and Blagovest 11L (the Ekspress-2000 bus). It has been revealed that a pattern of change in the reflectivity of different geostationary satellites is dissimilar. Spacecraft materials used for the surfaces of geostationary satellites manufactured in the second decade of the 21 st century are more resistant to the harsh space environment than those used for the satellites built in the late 20 th century. We have proposed several ways of improving the method for identifying the spacecraft material type based on multicolour photometric observations. The presented results show that the proposed photometric method works and can be used for detecting spacecraft surface degradation.","PeriodicalId":34039,"journal":{"name":"Odessa Astronomical Publications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46089133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FROM SPECTROSCOPY TO THE CHEMICAL EVOLUTION OF THE GALAXY. PART 1. 从光谱学到星系的化学演化。第1部分。

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268105

T. Mishenina

引用次数: 0

SPECTRAL OBSERVATIONS OF THE HERBIG Be STAR HD 53367 赫比格Be恒星HD 53367的光谱观测

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268188

B. Rustamov, Kh. M. Mikailov, K. Alisheva, S. Mammadova, V.I. Aliyeva

引用次数: 0

ANGULAR STRUCTURE OF THE RADIO GALAXY 3C239 IN THE DECAMETER RANGE 无线电星系3C239在十米范围内的角结构

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268191

R.V. Vashchishyn, V. Shepelev, O. A. Litvinenko, G. S. Podgorny, V. G. Derevyagin, A.V. Lozonsky

{"title":"ANGULAR STRUCTURE OF THE RADIO GALAXY 3C239 IN THE DECAMETER RANGE","authors":"R.V. Vashchishyn, V. Shepelev, O. A. Litvinenko, G. S. Podgorny, V. G. Derevyagin, A.V. Lozonsky","doi":"10.18524/1810-4215.2022.35.268191","DOIUrl":"https://doi.org/10.18524/1810-4215.2022.35.268191","url":null,"abstract":"We present the results of the observation of the radio galaxy 3C239 with the URAN interferometers at the decameter wavelengths. According to our study, the source in this range consists of two components that coincide in position and size with the lobes of the radio galaxy observed at the decimeter wavelengths, and a compact component corresponding to one of its hot spots. Another hot spot is not detected due to its low flux density at decameter wavelengths. In addition, an extended region of radiation with low surface brightness was detected, which surrounds the source lobes. The size of this halo is 28 arcsec, and its emission at the frequency of 25 MHz is about 20% of the total flux of the radio galaxy. A possible view of spectra of the radio source components and their variation in the range from decameter to decimeter wavelengths are determined. It is noted that in contrast to the high-frequency structure of 3C239, where radiation of the compact hot spots dominates, at decameter wavelengths about 90% of the radio galaxy flux is provided by more extended components — the source lobes and the halo.","PeriodicalId":34039,"journal":{"name":"Odessa Astronomical Publications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41686577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

THE POSITRONE γ-SPECTROSCOPY OF SIMBIONIC SYSTEMS 仿生系统的正电子γ能谱

Odessa Astronomical Publications Pub Date : 2022-12-14 DOI: 10.18524/1810-4215.2022.35.268003

D. Doikov

{"title":"THE POSITRONE γ-SPECTROSCOPY OF SIMBIONIC SYSTEMS","authors":"D. Doikov","doi":"10.18524/1810-4215.2022.35.268003","DOIUrl":"https://doi.org/10.18524/1810-4215.2022.35.268003","url":null,"abstract":"The γ-spectroscopy of rapid processes in space and Earth atmospheres we considered in this paper. One of considered object is AM Her types cataclysmic systems in soft γ-ray spectra. We calculated intensity of annihilation line who indicates the p-p thermonuclear explosions in a surface of the White Dwarfs (therefore WD). In the presented results we used, that the p-p detonation in degenerate plasma produce positrons. We confirmed that the formed annihilation γ-quants with energy 0.511 MeV is the suitable diagnostic possibility to study the effectiveness of thermonuclear reaction channels during such explosions. These results show the reason for the lack of registration of γ- flares in other types of cataclysmic variables. For example, in this paper considered systems with classical accretion disks named how Periodical Novae. Because these explosion is rare and have specific in geometrical and physical conditions for him monitoring with other strategy of observation. In Earth atmosphere tame scale of formation of secondary positrons is same. We showed, that annihilation of positrons occurs in near Earth surface zone. In this case observatories based in height reaching 2000 and more meters are important, it is advisable to planning the placement of this kind of equipment. It is confirmed, that presented perovskite detectors have the necessary sensitivity and universal spectral sensitivity and the study and modeling of interaction processes allows you to set the operating modes of the interfaces in the monitoring modes of observations.\u0000In presented paper has been confirmed, that perovskite materials in form of binary detectors enables simultaneous observations of hard radiation and optical quanta. In this cases observation of CR, micro meteors and other rapid objects in Earth atmosphere greatly expands the possibilities of their study.","PeriodicalId":34039,"journal":{"name":"Odessa Astronomical Publications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48340809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0