Zobrazeno 1 - 10
of 37
pro vyhledávání: '"M. Bleiders"'
Publikováno v:
Astronomical and Astrophysical Transactions. :103-112
The method (Kraus (2007)) for correcting atmospheric opacity in the C-band was applied to the RT-16 radio telescope of the Irbene observatory. The method is based on the calculation of the noise temperature T0, which is almost independent of the envi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::649a129ccb8bbe4df261761135861ca3
https://doi.org/10.17184/eac.6473
https://doi.org/10.17184/eac.6473
Observations of Weak Galactic OH Masers in 1.6 GHz Frequency Band Using Irbene RT-32 Radio Telescope
Publikováno v:
Latvian Journal of Physics and Technical Sciences. 59:14-22
Ventspils International Radio Astronomy Centre (Ventspils University of Applied Sciences) is implementing the scientific project “Complex Investigations of the Small Bodies in the Solar System” (lzp-2018/1-0401) related to the research of the sma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9446797a8b6b272690a010c7aaa7fdf
https://doi.org/10.2478/lpts-2022-0020
https://doi.org/10.2478/lpts-2022-0020
Autor:
M. Bleiders
Publikováno v:
Latvian Journal of Physics and Technical Sciences, Vol 57, Iss 1-2, Pp 28-33 (2020)
Various feasible solutions of Irbene RT-32 secondary focus feed antennas are designed and compared in the present study. The examined feed antennas include smooth wall and corrugated horns with linear and shaped profiles. Mode matching technique is e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5f14ff5c7205a5876505074abda87cc
https://doi.org/10.2478/lpts-2020-0004
https://doi.org/10.2478/lpts-2020-0004
Autor:
I. Eglitits, M. Bleiders, A. Orbidans, A. L. Sukharev, S. Udovichenko, P. Dubovsky, M. I. Ryabov, V. Bezrukovs, L. Keir
Publikováno v:
Astrophysics. 63:32-44
The extragalactic radio source OJ 287 is one of the most studied blazars. A huge amount of data has been accumulated on it (for more than 40 years in the radio range and more than 100 in the optical). Studies of the rapid variability in the radio flu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8e61ce9750ba91f29bd23b5995f2c84
https://doi.org/10.1007/s10511-020-09611-w
https://doi.org/10.1007/s10511-020-09611-w
Modern scientific research particularly radio astronomi- cal spectroscopic observations cannot be imagined without appropriate software suite. That is necessary because of two reasons 1) data are in digital form and 2) data processing is a complex mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a270d1754bef887ae002a498aad97bba
https://doi.org/10.20944/preprints202108.0156.v1
https://doi.org/10.20944/preprints202108.0156.v1
Publikováno v:
Latvian Journal of Physics and Technical Sciences, Vol 56, Iss 3, Pp 50-61 (2019)
Irbene RT-32 radio telescope is one of the main instruments operated by Ventspils International Radio Astronomy Center (VIRAC), which is used for participation in VLBI and single-dish mode observations, including European VLBI Network (EVN) and other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79f5d8e4a0c2f202e2bce5f826d25cbb
https://doi.org/10.2478/lpts-2019-0019
https://doi.org/10.2478/lpts-2019-0019
Autor:
O. M. Patoka, A. Aberfelds, Valerii Shulga, A. Orbidans, Vl. Bezrukovs, I. Shmeld, Oleksandr Antyufeyev, M. Bleiders
Aims.Molecular masers, including methanol and hydroxyl masers, and in particular the ones in excited rotational states (ex-OHmasers), are one of the most informative tools for studying star-forming regions. So, the discovery, of new maser sources in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f98c37a33496c6c09873fb087a16619e
http://arxiv.org/abs/2106.11585
http://arxiv.org/abs/2106.11585
Institute of Astronomy (University of Latvia) with Ventspils International Radio Astronomy Centre (Ventspils University of Applied Sciences) participation is implementing the scientific project “Complex investigations of the small bodies in the Sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f243b5622ede55ac85bdf5a12faee37a
https://doi.org/10.5194/epsc2020-171
https://doi.org/10.5194/epsc2020-171
Autor:
M. Bleiders
Publikováno v:
2020 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW).
In this paper model based on laser scanning survey of Ventspils International Radio Astronomy Centre (VIRAC) 32-m dual reflector radio telescope RT-32 is investigated using electromagnetic simulation. High density point cloud which simultaneously inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eca60c371d702fe443cc3b22b46c66b6
https://doi.org/10.1109/mttw51045.2020.9245071
https://doi.org/10.1109/mttw51045.2020.9245071
Autor:
Pavol Dubovsky, Ilgmars Eglitis, Leonid Keir, Artem Sukharev, Sergei Udovichenko, Vladislavs Bezrukovs, M. Bleiders, A. Orbidans, Michail Ryabov, Igor Kudsey
Publikováno v:
Galaxies, Vol 8, Iss 69, p 69 (2020)
Galaxies
Volume 8
Issue 3
Galaxies
Volume 8
Issue 3
BL Lac object 3C 371 is variable in optical and radio range, according to long-term monitoring data, for example AAVSO (American Association of Variable Star Observers) and OVRO (Owens Valley Radio Observatory). In addition, some authors note intra-n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d4fc708e9943cd47318b26a06748dee
https://www.mdpi.com/2075-4434/8/3/69
https://www.mdpi.com/2075-4434/8/3/69