Results 31 to 40 of about 190 (79)

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
core   +1 more source

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
core  

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
core   +1 more source

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.
core   +1 more source

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
core  

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
core   +1 more source

Characterizing long-term astroclimate parameters at the Muztagh-Ata site in the Pamir plateau with ERA5 and MERRA-2 data

Monthly Notices of the Royal Astronomical Society
ABSTRACT The Muztagh-Ata site, an excellent high-altitude ground-based astronomical observing site was discovered and monitored in the eastern part of the Pamir Plateau in the southwestern Xinjiang Uygur Autonomous Region of China. This site has been systematically monitored using various observational parameters since the spring of 2017.
Jicheng Zhang, Yong Zhao, Jian Gao, Ali Esamdin, Wenzhao Zhang, Haibo Yuan, Guojie Feng, Hubiao Niu, Wenbo Gu, Xuan Zhang, Chunhai Bai   +10 more
openaire   +1 more source

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
core  

ESPriF: the Echelle Spectropolarimeter of the BTA Primary Focus. Correction of Low-Frequency Variations in the Star Image

The development of a corrector for low-frequency variations in the star image at the input of ESPriF, the echelle spectropolarimeter of the BTA primary focus, is reported.
Emelianov, E. V., Panchuk, V. E., Verich, Yu. B., Yushkin, M. V.   +3 more
core  

Microwave Receiving System Based on Cryogenic Sensors for the Optical Big Telescope Alt-Azimuth. [PDF]

Sensors (Basel)
Balega Y, Bubnov G, Chekushkin A, Dubrovich V, Edelman V, Gunbina A, Kapustin S, Khabarova T, Kukushkin D, Lapkin I, Mansfeld M, Maruhno A, Parshin V, Raevskiy A, Stolyarov V, Tarasov M, Valyavin G, Vdovin V, Yakopov G, Yusupov R, Zemlyanukha P, Zinchenko I.   +21 more
europepmc   +1 more source