The results of a search for ultrarapid variability of galactic water maser sources at the wavelength 1.35 cm on a timescale of several minutes to 1 h are reported. A special observational technique was developed. ... Among those, several sources that have shown such variability were found. ... Clear evidence for such a variability type was found in at least two sources: W49N and W33B. Variability of this kind displays itself only in certain states of the water masers. ...
... Multiexposition 34 images Sun 1/1000 sec f/22 and 1 image background. ... It shows position of the Sun on the sky in the same time of a day during one year. Analemma - a trace of the annual movement of the Sun on the sky - is well known among experts of sun-dials and old Earth's globes as a diagram of change of seasons and an equation of time. ... Previously, the position of the Sun on the sky was calculated with computer as well as optimal moments of time for taking each of the exposures. ...
... M. Makarov Yuzhny Machine-Building Plant (Yuzhmash), Production Association . Pavlograd Mechanical Plant, State Company . Dnipropetrovsk State Design Institute . Ukrainian Engineering Technology Research Institute, Public Company . ... State Research and Engineering Center for Space Technique Certification . Radio Measurement Research Institute, Public Company . ... Kurs Research and Production Complex, Public Company . ... Lviv Center NSAU-NASU Space Research Institute . ...
... КОНСПЕКТ ЛЕКЦИЙ ПО КУРСУ "РАДИОАСТРОНОМИЯ" . ... Дано краткое изложение курса лекций по радиоастрономии, читаемого автором для студентов IV - V курсов астрономического отделения физического факультета МГУ . ... Определены основные понятия радиоастрономии, рассмотрены механизмы генерации радиоволн в астрономических объектах. ... Рассмотрены приложения радиоастрономии к космологии и радиоастрономические аспекты поиска внеземных цивилизаций. ... Глава 1. ... Основные понятия радиоастрономии . ...
Solar Physics (2006) 233: 89-106 DOI: 10.1007/s11207-006-2850-y C Springer 2006 ON THE POSSIBLE CONNECTION BETWEEN PHOTOSPHERIC 5-MIN OSCILLATION AND SOLAR FLARE MICROWAVE EMISSION A. G. KISLYAKOV and V. V. ZAITSEV Institute of Applied Physics, Nizhny Novgorod, Russia (e-mails: agkis@appl.sci-nnov.ru; za130 Dynamic spectra of low-frequency modulation of microwave emission from solar flares are obtained. ... PHOTOSPHERIC 5-MIN OSCILLATION AND SOLAR FLARE MICROWAVE EMISSION 93 Figure 2. ...
Neutron Star Group . Analytical Representations of Equations of State of Neutron Star Matter . These analytical representations are designed for older equations of state FPS and SLy4. For newer equations of state BSk19-20-21, see this http URL . ... Description of EOS subroutines . ... Alexander Potekhin ( Department of Theoretical Astrophysics of the Ioffe Institute ): palex@astro.ioffe.ru . ... Page created on April 5, 2004 , last updated on May 20, 2007 by Alexander Potekhin . ...
... Важнейшим аспектом этапа развертывания на орбите Международной Космической Станции (МКС) является исключительно напряженный рабочий график выполнения деятельности на орбите. ... Длительная изоляция малой группы в замкнутом пространстве является одним из ключевых факторов жизнедеятельности экипажа Международной Космической Станции (МКС). ... 2 выполняет деятельность, более интенсивную и напряженную, чем в группе ? ... Режим и интенсивность деятельности в данной группе будут такими же, как и в группе ...
... Imaging GRIN Rod Lens (HAG's) | Relay Rod Lens (LAG's) | ... The Refractive Index Distributions (RID) in GRIN lens preforms are made by multi-stage optimized ion-exchange diffusion between silicate mineral glasses and salt melts. ... In the LAG lenses - L ow A perture GRIN the nature of the changing of refractive index in glass via ion-exchange lies mainly in molecular volume increase. ... LAG lenses are specially treated to create the dark anti-flick surface coating (Fig.2). ...
This domain may be for sale - этот домен возможно продается . ... The gathered information about your visits to this and other websites are used by these third party companies in order to provide advertisements about goods and services of interest to you. ... If you would like more information about this practice and to know your choices about not having this information used by these companies, click here . ...
... Structure of Data . ... Catalog . ... The SAI OCL Catalog site provides several VO-enabled modes of operation: . VO-enabled catalog data analysis from a browser . ... Endpoint URL is http://ocl.sai.msu.ru/catalog/conesearch/ . ... VO-enabled catalog analysis from a browser . Presently, this recipe works with Firefox (Windows, MacOS, Linux), Internet Explorer (Windows) and Opera (Windows) browsers with Java plugin 1.6 installed. ... Main TOPCAT window with SAI OCL catalog loaded will appear. ...
... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...
... 000, 113 (2010) Printed 21 September 2011 A (MN L TEX style file v2.2) A universal ultraviolet-optical colourcolourmagnitude relation of galaxies I1gor V. Chilingarian1,2, and Ivan Yu. ... Received 2011 Sep 15; in original form 2011 Feb 6 ABSTRACT The bimodal galaxy distribution in the optical colourmagnitude diagram (CMD) comprises a narrow "red sequence" populated mostly by early-type galaxies and a broad "blue cloud" dominated by star-forming systems. ...
Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...
... Войти на сайт: Имя: . ... Автор забыл указать имя ] . ... Размер незнакомца был около 7,5 сантиметра. В антарктической воде исследователи нашли также щупальце медузы. По оценкам ученых, размер целого существа может достигать 30 сантиметров. Ученые Национального управления США по аэронавтике и исследованию космического пространства под почти 200-метровой толщей антарктического льда обнаружили двух крупных живых существ. ... Имя: . ...