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- Crimean Astrophysical ObservatoryUA4 papers
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6 papers · 1 filter
Empiric Models of the Earth's Free Core Nutation
Zinovy Malkin
Free core nutation (FCN) is the main factor that limits the accuracy of the modeling of the motion of Earth's rotational axis in the celestial coordinate system. Several FCN models…
On comparison of the Earth orientation parameters obtained from different VLBI networks and observing programs
Zinovy Malkin
In this paper, a new geometry index of Very Long Baseline Interferometry (VLBI) observing networks, the volume of network , is examined as an indicator of the errors in the Eart…
Forthcoming Close Angular Approaches of Planets to Radio Sources and Possibilities to Use Them as GR Tests
Z. M. Malkin, V. N. L'vov, S. D. Tsekmeister
During close angular approaches of solar system planets to astrometric radio sources, the apparent positions of these sources shift due to relativistic effects and, thus, these eve…
Open Clusters ASCC21 as a Probable Birthplace of the Neutron Star Geminga
V. V. Bobylev, A. T. Bajkova
We analyze the encounters of the neutron star (pulsar) Geminga with open star clusters in the OB association OriOB1a through the integration of epicyclic orbits into the past by ta…
On the relation between AGN gamma-ray emission and parsec-scale radio jets
Y. Y. Kovalev, H. D. Aller, M. F. Aller +9
We have compared the radio emission from a sample of parsec-scale AGN jets as measured by the VLBA at 15 GHz, with their associated gamma-ray properties that are reported in the Fe…
Even the Minkowski space is holed
S. Krasnikov
To cure the lack of predictive power of general relativity Geroch proposed to complete the theory with an additional postulate that only "hole-free" spacetimes are permitted. I arg…