Results 31 to 40 of about 300 (82)

Subterahertz Astronomy in the Russian Federation:Prospects and Directions [PDF]

: This paper addresses the scientific and technical prospects and potential directions for the development of subterahertz astronomy in the Russian Federation.
Andrianov, A. S., Andrianov, M. N., Arkhipov, M. Yu, Baryshev, A. M., Cherniy, R. A., Fedorchuk, S. D., Golubev, E. S., Khudchenko, A. V., Kostenko, V. I., Larchenkova, T. I., Likhachev, S. F., Pilipenko, S. V., Podobedov, Ya G., Razananirina, J. C., Rudnitskiy, A. G., Shchurov, M. A., Tretyakov, I. V., Vdovin, V. F.   +17 more
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Astroclimate parameters of the Kyiv observatories [PDF]

, 2012
Astroclimate parameters such as the atmospheric extinction, the night-sky brightness, and the seeing are studied using the observational data obtained at some Kyiv observatories. The first parameter is determined using the brief Bouguer method. The night-
Reshetnyk, V.M., Rieznik, K.
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Astroclimes – measuring the abundance of CO2 and CH4 in the Earth’s atmosphere using astronomical observations

RAS Techniques and Instruments
ABSTRACT Monitoring the abundance of greenhouse gases is necessary to quantify their impact on global warming and climate change. Carbon dioxide ($\mathrm{CO_{2}}$) and methane ($\mathrm{CH_{4}}$) are the two most important greenhouse gases when it comes to global warming. Although a number of satellites and ground-based networks measure
Marcelo Aron Fetzner Keniger, David Armstrong, Matteo Brogi, Siddharth Gandhi, Marina Lafarga   +4 more
openaire   +3 more sources

On the interaction of a system with multifrequency oscillations with a chaotic generator [PDF]

The purpose of the work: to study the influence of the dynamics of a chaotic system on a system with multi-frequency quasi-periodicity and the Landau-Hopf scenario.
Kuznetsov, Aleksandr Petrovich, Turukina, Lyudmila Vladimirovna   +1 more
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Observations of transits of the southern exoplanets WASP 4b and WASP 46b by using a 40 cm telescope [PDF]

, 2020
. We present photometric observations of transits of the southern exoplanets WASP 4b and WASP 46b using a 40 cm telescope. The obtained values of the orbital inclination, relative stellar radius and relative planet radius are well within the ranges of ...
Diana Kjurkchieva, Emil Ivanov, Nikola Petrov, Velimir Popov   +3 more
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Realization of Vilnius UPXYZVS photometric system for AltaU42 CCD camera at the MAO NAS of Ukraine [PDF]

, 2005
The description of two-inch glass filters of the Vilnius UPXYZVS photometric system, which are made at the Main Astronomical Observatory of NAS of Ukraine for AltaU42 CCD camera with format of 2048×2048 pixels, is presented in the paper.
Andruk, V.M., Delets, O.S., Ivashchenko, Yu.M., Kovalchuk, G.U., Nevodovsky, P.V., Samoylov, V.S., Vid'machenko, A.P.   +6 more
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Astronomical observatories [PDF]

The layout and equipment of astronomical observatories, the oldest scientific institutions of human society are discussed. The example of leading observatories of the USSR allows the reader to familiarize himself with both their modern counterparts, as ...
Ponomarev, D. N.
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Site selection and characterization for giant telescopes [PDF]

, 2004
I describe the procedures used during the different phases of site testing for astronomical telescopes, that is, during the pre-selection of candidate sites, on-site testing (site selection), the site decision itself and characterization of the telescope
Schöck, Matthias
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АСТРОКЛИМАТ МИНСКА [PDF]

, 2018
С помощью метода счета фотонов измеряется энергетическая яркость основных составляющих свечения ночного неба в направлении на галактический полюс и в зените в участках спектра 0,53 и 0,69 мкм в Минске и отдельных пунктах Минской области.Предлагается ...
В. Горенков Н., О. Кузнечик О., О. Кузнечик П.   +2 more
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New infrared camera of the Caucasian Mountain Observatory of the SAI MSU: design, main parameters, and first light

This paper presents a prototype of an infrared photometer, created at SAI of MSU based on the commercial infrared module Gavin-615A. The operating spectral range of the photometer is 3-5 mkm.
Belyakova, A. A., Koksharova, E. A., Tatarnikov, A. M., Zheltoukhov, S. G.   +3 more
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