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61.
E. N. Sokov I. A. Vereshchagina Yu. N. Gnedin A. V. Devyatkin D. L. Gorshanov V. Yu. Slesarenko A. V. Ivanov K. N. Naumov S. V. Zinov’ev A. S. Bekhteva E. S. Romas S. V. Karashevich V. V. Kupriyanov 《Astronomy Letters》2012,38(3):180-190
Exoplanet observations have been performed on the automated Pulkovo Observatory telescopes. We have obtained 33 transit light curves for 16 known exoplanets and six transit observations for three exoplanet candidates discovered by the Kepler telescope. Based on our observations, we have reliably confirmed the existence of an exoplanet with an extremely large radius, R pl = 1.83 ± 0.16R Jup, in the system KOI 256 and detected a strong deviation of its orbital revolution from the theoretically predicted one. During the transit of the exoplanet WASP-12b across the stellar disk, we detected bursts that could be caused by the planet transit across spots on the star or by the presence of a satellite around this exoplanet. We detected possible periodic variations in the duration of the exoplanet transit across the stellar disk with time for HAT-P-12b that could be caused by variations in orbital inclination. The transit duration and depth, the central transit time, and the radius and orbital inclination of the planet have been estimated. The equilibrium temperature and albedo have been estimated for several exoplanets. 相似文献
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Data on the fluctuations in cosmic microwave background (CMB) radiation, whose accuracy is expected to increase in the immediate
future, allow the cosmological recombination of atomic hydrogen and its interaction with the CMB radiation to be studied.
Nonresonant effects play an important role in these recombination processes. We consider the quantum-mechanical foundations
of the nonresonant processes and present our calculations for the differential two-photon decay rates of the 3s and 3d levels in the hydrogen atom.
This article was submitted by the authors in English. 相似文献
65.
Izvestiya, Atmospheric and Oceanic Physics - New ways to improve the original technique for assessing the albedo of snow–ice surfaces with the use of ground measurements of incoming solar... 相似文献
66.
Kutcherov V. G. Dmitrievsky A. N. Ivanov K. S. Serovaiskii A. Yu. 《Doklady Earth Sciences》2020,492(1):338-341
Doklady Earth Sciences - Experimental results and geological observations suggesting the existence of a deep hydrocarbon cycle are presented. During immersion hydrocarbons accumulated in the... 相似文献
67.
The zones of thawed ground in the permafrost area are most dangerous from engineer-geologist effect point of view. Detection of such zones, as making forecast of their movement is the main task of engi... 相似文献
68.
It has been indicated that the Rao-Cramer inequality can be used to estimate the resolvability of intervals with opposite geomagnetic field polarity based on marine anomalies and for measurement planning. Specifically, it has been elucidated that the width of a detected interval of one polarity is determined more exactly than its center. 相似文献
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A. P. Ivanov I. L. Katsev A. S. Prikhach E. P. Zege 《Izvestiya Atmospheric and Oceanic Physics》2014,50(2):188-195
Methods and algorithms for the retrieval of optical characteristics of the aerosol atmosphere and underlying surface by data from a multispectral satellite sensor (MSSS) are described. A procedure for the joint processing of MSSS and multizonal imaging system (MZIS) data is proposed and described with the aim of retrieving the albedo of the Earth’s surface with a high spatial resolution. In this case the spectral optical characteristics of the aerosol atmosphere are retrieved by MSSS data in the visible range of 400–700 nm. According to these results, transmission functions of the atmosphere in MZIS spectral channels are calculated and an atmospheric correction of MZIS data is performed. The accuracy of determining the albedo of the underlying surface in spectral channels of MZIS with high-spatial-resolution is estimated. 相似文献