Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Zinovy Malkin"'
How Well is the International Celestial Reference System Maintained in Official IAU Implementations?
Autor:
Zinovy Malkin
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 229 (2024)
The International Celestial Reference Frame (ICRF) based on the VLBI-derived positions of 608 extragalactic radio sources was adopted by the International Astronomical Union (IAU) in 1998 as the first realization of the International Celestial Refere
Externí odkaz:
https://doaj.org/article/65dbd1914cd04600b6da48d41a449757
Publikováno v:
Sensors, Vol 22, Iss 16, p 5960 (2022)
We announce the detection of a new large jump in the phase of the free core nutation (FCN). This is only the second such large FCN phase jump in more than thirty years of FCN monitoring by means of a very long baseline interferometry (VLBI) technique
Externí odkaz:
https://doaj.org/article/08b6e8dff1db4188b693d55452d05c06
Autor:
Sadegh Modiri, Robert Heinkelmann, Santiago Belda, Zinovy Malkin, Mostafa Hoseini, Monika Korte, José M. Ferrándiz, Harald Schuh
Publikováno v:
Sensors, Vol 21, Iss 22, p 7555 (2021)
The understanding of forced temporal variations in celestial pole motion (CPM) could bring us significantly closer to meeting the accuracy goals pursued by the Global Geodetic Observing System (GGOS) of the International Association of Geodesy (IAG),
Externí odkaz:
https://doaj.org/article/7fd4e97b144e4aadab96ec544a042a05
Autor:
Sorin Nistor, Norbert-Szabolcs Suba, Ahmed El-Mowafy, Michal Apollo, Zinovy Malkin, Eduard Ilie Nastase, Jacek Kudrys, Kamil Maciuk
Publikováno v:
Remote Sensing, Vol 13, Iss 17, p 3478 (2021)
The seasonal signal determined by the Global Navigation Satellite System (GNSS), which is captured in the coordinate time series, exhibits annual and semi-annual periods. This signal is frequently modelled by two periodic signals with constant amplit
Externí odkaz:
https://doaj.org/article/a07c0abf1a8a45f29db64b6af74356b0
Autor:
Zinovy Malkin
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 3 (2016)
The current state of the link problem between radio and optical celestial reference frames is considered.The main objectives of the investigations in this direction during the next few years are the preparation of a comparisonand the mutual orientati
Externí odkaz:
https://doaj.org/article/0cb6114652e14bbdad521f4ba89ed807
Autor:
Zinovy Malkin
Publikováno v:
Astronomy Reports. 66:778-785
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::056cadd9182807b195acf9dac4207e8e
https://doi.org/10.1134/s1063772922090086
https://doi.org/10.1134/s1063772922090086
Publikováno v:
RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
Universidad de Alicante (UA)
We announce the detection of a new large jump in the phase of the free core nutation (FCN). This is only the second such large FCN phase jump in more than thirty years of FCN monitoring by means of a very long baseline interferometry (VLBI) technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4830bb0b7ef38c8f61bbff9da9b455f9
https://hdl.handle.net/10045/126399
https://hdl.handle.net/10045/126399
Autor:
Zinovy Malkin
Publikováno v:
Astronomy Reports. 64:168-188
2019 marked the 20th anniversary of the International VLBI Service for Geodesy and Astrometry (IVS). This service is the largest and most authoritative organization that coordinates international activities in radio astrometry and VLBI sub-system of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49373f3f439bcd615eaee363df0091e4
https://doi.org/10.1134/s1063772920020043
https://doi.org/10.1134/s1063772920020043
Autor:
Véronique Dehant, Chengli Huang, Richard S. Gross, Harald Schuh, Jan Vondrák, Aleksander Brzeziński, Nicole Capitaine, Yaroslav Yatskiv, Dennis D. McCarthy, Zinovy Malkin
Publikováno v:
Proceedings of the International Astronomical Union
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15146554da6e5d13d07eed15d6c56b26
https://doi.org/10.1017/s1743921319000462
https://doi.org/10.1017/s1743921319000462
Autor:
Zinovy Malkin
Publikováno v:
Web of Science
A comparison was made between $Gaia$ magnitudes and magnitudes obtained from ground-based observations for astrometric radio sources . The comparison showed that these magnitudes often not agree well. There may be several reasons for this disagreemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36b4ec9930725cb3d419afd5e872efc5
http://arxiv.org/abs/2105.01884
http://arxiv.org/abs/2105.01884