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1.
Based on our 1997 observations with a CCD camera and narrow-band filters attached to the 1-m Assy Obsev vatory telescope, we extensively study the latitudinal variations in limb darkening and normal albedo on Jupiter's disk at wavelengths of 387, 445, 502, 619, and 702 nm. In addition, we carried out observations in 1998 with broad-band red, green, and blue filters. Apart from a general regularity—the increase in darkening coefficient with normal albedo of Jupiter's cloud cover—there is an appreciable scatter of darkening coefficients for the same albedo, which is most pronounced in the ultraviolet. This scatter may result from differences in the optical depth of the aerosol haze above the clouds. The lack of any wavelength dependence of the darkening coefficients is confirmed for Jupiter's polar regions, while at other latitudes, they decrease with decreasing wavelength. 相似文献
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E. P. Mazets S. V. Golenetskii V. N. Il'inskii Yu. A. Gur'yan T. V. Kharitonova 《Astrophysics and Space Science》1975,33(2):347-357
Diffuse cosmic background and atmospheric gamma-radiation in the range 28 keV-4.1 MeV were studied with a scintillation spectrometer on board of the Kosmos 461 satellite. Separation of the cosmic and atmospheric components was made possible through a reliable determination of the geomagnetic dependences of albedo gamma-radiation: The spectrum of diffuse background in the energy range covered cannot be fitted with a common law. At energies below 400 keV the spectrum follows a power-law $$I = (5.6 \pm 0.5) \times 10^{ - 3} E^{ - (2.80 \pm 0.05)} cm^{ - 2} s^{ - 1} sr^{ - 1} MeV^{ - 1} .$$ Starting from 400 keV, this power-law breaks down; the spectrum revealing a clearly pronounced shoulder. Extrapolation of the power-law spectrum to higher energies shows that the gamma-ray component responsible for the change in the shape of the spectrum is quite strong, becoming predominant in the diffuse background in the range 1–100 MeV. The intensity of excess radiation is maximum in the region of 700–800 keV reaching ～1.8×10?2 cm?2s?1sr?1 MeV?1. The shape of the high energy component spectrum of the diffuse background constructed using the data of Kosmos 461 and SAS-2 is in agreement with the hypotheses of the cosmological origin of the radiation. 相似文献
3.
D. A. Novikov Doan Van Tuyen Thi Kim Van Phan N. A. Kharitonova 《Russian Journal of Pacific Geology》2018,12(1):63-79
The results of studying the features of the hydrogeological structure and chemical and isotope composition of thermal waters from the central part of Vietnam that are characterized by intense manifestations of intrusive magmatism are presented. It is established that low–and high–thermal waters with temperature varying within 30–85°C are developed in the area under study. The value of total mineralization of the hydrotherms ranges from 0.05 to 10.05 g/dm3. It is assumed that the circulation of thermal waters that are different in temperature and chemical composition occurs at two levels. The regular change of the hydrotherm composition in the direction from mineralized chloride sodium, including with increased Ca content, to fresh sodium bicarbonate is revealed. The ratio of δ18O–δ2H isotopes indicates that the water component is based on meteoric water. In the coastal areas, there is an isotope shift towards the ocean waters, which is also confirmed by the hydrogeochemical data. The key factors for forming the chemical composition of the thermal waters in South Trungbo are their genetic type, the interaction processes in the “water–rock–gas–organic substance” system, and their equilibrium–nonequilibrium state. 相似文献
4.
E.?S.?KazakEmail author E.?G.?Kalitina N.?A.?Kharitonova G.?A.?Chelnokov E.?V.?Elovskii I.?V.?Bragin 《Moscow University Geology Bulletin》2018,73(3):287-294
This paper reports the results of the experimental determination of the coefficient of sorption of rare-earth elements and yttrium (REY) under conditions of acidic pH using several strains of heterotrophic bacteria (Microbacterium sp., Curtobacterium sp., Bacillus subtilis, Pseudomonas putida, and Bacillus pumilis) that are widespread in natural and technogenic waters of the Far East (Russia). Insignificant fractionation between heavy and light rare-earth elements, negative cerium and dysprosium anomalies, and a positive europium anomaly were revealed. The selectivity of REY biosorption by gram-positive and gram-negative bacteria, as well as inertia of the biosorption process under more acidic conditions of the medium, were shown. 相似文献
5.
Nakamura Hitomi Iwamori Hikaru Morikawa Noritoshi Kharitonova Natalia Chelnokov Georgy Bragin Ivan Chang Qing 《Aquatic Geochemistry》2021,27(4):269-282
Aquatic Geochemistry - Spring waters with high-pCO2 content are widely distributed in the Sikhote-Alin region in Russia. Mukhen spa is one such spring located in the northern Sikhote-Alin region.... 相似文献
6.
E. P. Mazets S. V. Golenetskii V. N. Ilyinskii V. N. Panov R. L. Aptekar Yu. A. Guryan M. P. Proskura I. A. Sokolov Z. Ya. Sokolova T. V. Kharitonova A. V. Dyatchkov N. G. Khavenson 《Astrophysics and Space Science》1981,80(1):3-83
Data are presented on the temporal structure, fluxes, energy spectra and coordinates of the sources of gamma-ray bursts detected in the KONUS experiment on Venera 11 and Venera 12 space probes in the period September 1978 to May 1979. The statistical distributions of gamma bursts in duration, intensity, and peak power, as well as the distribution of the burst sources over the celestial sphere presented are based on the updated KONUS information obtained until February 1980. 相似文献
7.
Kayukova E. P. Kharitonova N. A. Filimonova E. A. Charykova M. V. 《Water Resources》2022,49(4):647-660
Water Resources - The major factors governing the formation of the chemical and isotopic compositions of surface water in open water bodies (ponds) in the Bodrak River basin have been studied by... 相似文献
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9.
On the basis of the wind-energy method, we estimate the distributions of the parameters of a longshore flux of sediments formed
near the west coast of the Bakal’skaya Spit (in the northwest part of the Crimea) under the conditions of heavy storms whose
action caused a significant erosion of the west coast of the spit and retreat of the coastline in January and November 2007.
The calculations are carried out by using the actual directions and velocities of the winds recorded in the investigated region.
We analyze the trends of changes in the formation of the coastal zone caused by the nonuniform distribution of the intensity
of longshore transportation of sediments. In analyzing the causes of formation of gullies in the barrier of the Bakal’skoe
Lake and in the narrow distal part of the body of the spit, we make an attempt of interpretation of the quantities characterizing
the force of the frontal action of waves. The obtained numerical results are confirmed by the data of field observations. 相似文献
10.
O. V. Chudaev G. A. Chelnokov I. V. Bragin N. A. Kharitonova S. N. Rychagov A. A. Nuzhdaev I. A. Nuzhdaev 《Russian Journal of Pacific Geology》2016,10(6):458-475
This paper presents original data on the content and distribution of major and rare-earth elements in the modern hydrothermal systems of the Paratunka and Bol’shebannyi thermal water deposits. In spite of the similar geochemical type of the waters, the individual sites of the hydrothermal systems differ in the major component composition, which is caused by the time of water–rock interaction, temperature control, and the possible influence of seawater intrusions. The REE concentrations in the studied thermal waters are extremely low (a few tenths of ppb). A distinctive feature of these thermal waters is the presence of a positive Eu anomaly. The possible reasons for its appearance are discussed. Calculation of REE speciation shows that the main parameters controlling the formation of the REE complexes in the Paratunka and Bol’shebannyi hydrothermal systems are their individual chemical properties, as well as pH, Eh, and temperature of the aqueous solution. 相似文献