排序方式： 共有78条查询结果，搜索用时 15 毫秒
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M. Yu. Khovrichev A. M. Kulikova E. N. Sokov V. V. Dyachenko D. A. Rastegaev A. S. Beskakotov Yu. Yu. Balega B. S. Safonov A. V. Dodin O. V. Vozyakova 《Astronomy Letters》2016,42(10):686-692
One of the goals of the Pulkovo program of research on stars with large proper motions is to reveal among the low-luminosity stars those that have evidence of binarity. Twelve astrometric binary candidates from the Pulkovo list have been included in the program of speckle observations with the BTA telescope at the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) and the 2.5-m telescope at the Caucasus Observatory (CO) of the Sternberg Astronomical Institute of the Moscow State University to confirm their binarity and then to determine the parameters of the revealed stellar pairs. The binarity of the brightest of these stars, J1158+4239 (GJ 3697), has been confirmed. Four sessions of speckle observations with the BTA SAO RAS telescope and one session with the 2.5-m CO telescope have been carried out in 2015–2016. The weighted mean estimates of the pair parameters are ρ = 286.5 ± 1.2 mas and θ = 230.24? ± 0.16? at the epoch B2015.88248. The magnitude difference between the pair stars is Δm = 0.55 ± 0.03 (a filter with a central wavelength of 800 nm and a FWHM of 100 nm) and Δm = 0.9 ± 0.1 (an R filter). 相似文献
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A. V. Konovalov E. P. Semenova D. A. Safonov 《Journal of Volcanology and Seismology》2012,6(4):243-253
An earthquake of magnitude MW = 5.8 occurred in the upper reaches of the Uanga and Pogibi rivers in northwestern Sakhalin at 9 h 44 min WT on March 16, 2010. The event is the largest for the northwestern part of the island during the entire history of instrumental seismological observations that have been conducted on Sakhalin since 1905. A macroseismic study showed that the earthquake was felt in much of northern Sakhalin and the Amur River area. This paper presents the results from a detailed study of the seismicity in the rupture zone, the space-time distribution of aftershocks, and their relationships to the active fault zones that exist in northern Sakhalin. Some new results were obtained that concern the interrelationships between the focal mechanism and the present-day geodynamic setting. 相似文献
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A. V. Konovalov A. A. Stepnov D. A. Safonov A. I. Kozhurin A. S. Pavlov A. V. Gavrilov K. A. Manaychev D. Ye. Tomilev H. Takahashi M. Ichiyanagi 《Journal of Seismology》2018,22(4):943-955
An earthquake with the moment magnitude M w ?=?5.8 occurred in the middle part of the Sakhalin Island, Russian Federation, on 14 August 2016, at 11:17 a.m. UTC. The earthquake source was located west of the Central Sakhalin Fault Zone, which is considered to mark the boundary between the Okhotsk and Eurasian (Amurian) plates. Moment tensor solution of the mainshock as well as the configuration of aftershock cloud suggests that the earthquake was caused by slip on a SW-dipping reverse fault. For the first time for Sakhalin, we have got the felt reports unified in accordance with DYFI. We also analyzed observed PGA values and, based on them, produced shaking maps. 相似文献
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Butvina V. G. Safonov O. G. Bondarenko G. V. Shapovalov Yu. B. 《Doklady Earth Sciences》2022,504(1):248-253
Doklady Earth Sciences - The results of experimental study of crystallization of chromium-bearing Ba-titanates (redlegeite, lindsleyite, and hawthorneite) in the chromite–rutile/ilmenite... 相似文献
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