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A very accurate imitation of Hipparcos and Tycho Hp, B
T, andV
T magnitudes was made using W, B, V, R magnitudes from the Tien Shan photometric catalogue. The calculated magnitudes were compared to the observed ones. It is
shown that there are systematic differences between calculated and observed magnitudes. The systematic errors are supposed
to be bound up with the sky scanning procedure on the Hipparcos satellite. Polynomials in powers of coordinates have been
proposed to take into account the systematic errors. 6558 stars have been found to be appropriate high-precision photometric
standards.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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Milyukov V. K. Mironov A. P. Ovsyuchenko A. N. Gorbatikov A. V. Steblov G. M. Korzhenkov A. M. Drobyshev V. N. Khubaev Kh. M. Agibalov A. O. Sentsov A. A. Dogan U. Ergintav S. 《Geotectonics》2022,56(1):41-54
Geotectonics - The paper presents the velocity field of the Western Caucasus and Ciscaucasia based on GNSS observations. In the ITRF2014 reference frame, this field shows the coordinated movement... 相似文献
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V. K. Milyukov A. P. Mironov A. N. Ovsyuchenko E. A. Rogozhin A. V. Gorbatikov V. N. Drobyshev Kh. M. Khubaev A. V. Nikolaev 《Doklady Earth Sciences》2018,481(1):879-882
The results of the first GPS measurements along the geophysical profile that intersects all major geological structures of the Osetiya region of the Greater Caucasus are presented. The results of the measurements are interpreted in comparison with those of neotectonic studies and data on the deep structure. 相似文献
25.
S. M. Zhmodik Yu. A. Kalinin N. A. Roslyakov A. G. Mironov Yu. L. Mikhlin D. K. Belyanin N. A. Nemirovskaya A. M. Spiridonov G. V. Nesterenko E. V. Airiyants T. N. Moroz T. A. Bul’bak 《Geology of Ore Deposits》2012,54(2):141-154
Formation of noble metal nanoparticles is related to various geological processes in the supergene zone. Dispersed mineral phases appear during weathering of rocks with active participation of microorganisms, formation of soil, in aqueous medium and atmosphere. Invisible gold and other noble metals are incorporated into oxides, hydroxides, and sulfides, as well as in dispersed organic and inorganic carbonic matter. Sulfide minerals that occur in bedrocks and ores unaltered by exogenic processes and in cementation zone are among the main concentrators of noble metal nanoparticles. The ability of gold particles to disaggregate is well-known and creates problems in technological and analytical practice. When Au and PGE nanoparticles and clusters occur, these problems are augmented because of their unusual reactions and physicochemical properties. The studied gold, magnetite, titanomagnetite and pyrite microspherules from cementation zone and clay minerals of laterites in Republic of Guinea widen the knowledge of their abundance and inferred formation conditions, in particular, in the contemporary supergene zone. Morphology and composition of micrometer-sized Au mineral spherules were studied with SEM and laser microprobe. The newly formed segregations of secondary gold on the surface of its residual grains were also an object of investigation. The character of such overgrowths is the most indicative for nanoparticles. The newly formed Au particles provide evidence for redistribution of ultradispersed gold during weathering. There are serious prerequisites to state that microorganisms substantially control unusual nano-sized microspherical morphology of gold particles in the supergene zone. This is supported by experiments indicating active absorption of gold by microorganisms and direct evidence for participation of Ralstonia metallidurans bacteria in the formation of peculiar corroded bacteriomorphic surface of gold grains. In addition, the areas enriched in carbon and nitrogen have been detected with SEM on the surface of gold spherules from Guinea. Such organic compounds as serine, alanine, and glycine are identified on their surface with Raman spectroscopy. The experiments have been carried out and new data have been obtained indicating the role of micromycetes in concentration and distribution of noble metals in ferromanganese nodules of the World Ocean. Au and Pt were detected in the system with radioisotopes. It has been established that two forms of gold distribution develop within pseudomorphs of fungi colonies: (1) as pseudomorphic concentrates and (2) dispersed form unrelated to the colony structure. Inhomogeneities in distribution of dispersed platinum are manifested in the form of linear anomalies with elevated concentrations at the margins of the colonies. 相似文献
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Mironov A. P. Milyukov V. K. Steblov G. M. Drobyshev V. N. Kusraev A. G. Khubaev Kh. M. 《Izvestiya Atmospheric and Oceanic Physics》2021,57(11):1498-1513
Izvestiya, Atmospheric and Oceanic Physics - Based on long-term observations over the Ossetian regional GNSS network, which currently consists of 59 compaign sites and 7 stations, estimates of the... 相似文献
27.
A. I. Zakharov A. V. Mironov M. E. Prokhorov A. V. Biryukov O. Yu. Stekol’shchikov M. S. Tuchin 《Astronomy Reports》2013,57(3):195-211
We describe goals and principles for the realization the Lyra-B space experiment onboard the International Space Station, which is currently being prepared at the Sternberg Astronomical Institute. The main goal of the experiment is to carry out a high-accuracy, multicolor all-sky survey of stars down to 16 m –17 m . The detailed structure of the expected observational data, their possible scientific use, and a number of technical problems are discussed. 相似文献
28.
M.I. Epov V.L. Mironov P.P. Bobrov I.V. Savin A.V. Repin 《Russian Geology and Geophysics》2009,50(5):470-474
We have measured the dielectric spectra of sand and bentonite mixtures with oil and saline water (NaCl solution) in the frequency range from 50 MHz to 16 GHz at 22 °C. The measured spectra were compared with predictions in terms of the generalized refractive mixing dielectric model (GRMDM), and the respective error was estimated as a check of the model applicability to describe oil-bearing formations. The results may be useful in developing new methods of electromagnetic logging. 相似文献
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The new photometric systemWBVR was described. It is close toUBVR but is defined by strictly fixed response curves and the secondary standards distributed uniformly in the northern sky was construct. The magnitudes of these standards were coordinated to the self-consistent system. All standards were examined for a possible brightness variability. 相似文献
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Boundary-Layer Meteorology - 相似文献