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Your search keyword '"K. G. Belousov"' showing total 7 results
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7 results on '"K. G. Belousov"'

1. Probing the gravitational redshift with an Earth-orbiting satellite

Author

M. V. Zakhvatkin, K. G. Belousov, A. Pollard, Dmitry A. Duev, K. Moore, Michael Lindqvist, G.D. Kopelyansky, Leonid I. Gurvits, J. F. H. Quick, C. Moore, A. M. Kutkin, Jun Yang, Sergei Pogrebenko, V. L. Kauts, Uwe Bach, A. V. Alakoz, A. I. Smirnov, B. Z. Kanevsky, Norbert Bartel, Dominic Dirkx, Kirill Sokolovsky, G. Granato, Rüdiger Haas, Jamie McCallum, C. Courde, Victor V. Kulagin, Alexander Neidhardt, Christian Plötz, James E. J. Lovell, R. Carman, Michael Bietenholz, Gert Herold, N. K. Porayko, Giuseppe Cimo, A. V. Belonenko, G. Molera Calvés, V. A. Stepan’yants, A. V. Kovalenko, A. V. Biriukov, V. N. Rudenko, Gerhard Kronschnabl, H. Mariey, P. de Vicente, A. V. Gusev, A. Kahlon, A. I. Filetkin, D. A. Litvinov, J. M. Torre, Géoazur (GEOAZUR 7329), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])

Subjects
Atomic clocks, 010504 meteorology & atmospheric sciences, FOS: Physical sciences, General Physics and Astronomy, Orbital eccentricity, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, RadioAstron, 01 natural sciences, General Relativity and Quantum Cosmology, symbols.namesake, 0103 physical sciences, Gravity Probe A, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Equivalence principle, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Physics, Equivalence Principle, Astronomy, Hydrogen maser, Atomic clock, symbols, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], Satellite, Astrophysics - Instrumentation and Methods for Astrophysics, Doppler effect, Gravitational redshift
Abstract

We present an approach to testing the gravitational redshift effect using the RadioAstron satellite. The experiment is based on a modification of the Gravity Probe A scheme of nonrelativistic Doppler compensation and benefits from the highly eccentric orbit and ultra-stable atomic hydrogen maser frequency standard of the RadioAstron satellite. Using the presented techniques we expect to reach an accuracy of the gravitational redshift test of order $10^{-5}$, a magnitude better than that of Gravity Probe A. Data processing is ongoing, our preliminary results agree with the validity of the Einstein Equivalence Principle., Comment: Submitted to Physics Letters A

Published
2018

2. RadioAstron gravitational redshift experiment: Status update

Author

B. Z. Kanevsky, Leonid I. Gurvits, N. K. Porayko, Michael Lindqvist, D. A. Litvinov, K. G. Belousov, V. A. Stepanyants, Michael Bietenholz, M. V. Zakhvatkin, V. N. Rudenko, Norbert Bartel, V. L. Kauts, Giuseppe Cimo, Rüdiger Haas, G. Molera Calvés, Alexander Neidhardt, A. V. Gusev, Gerhard Kronschnabl, Uwe Bach, Jun Yang, A. I. Smirnov, Christian Plötz, Kirill Sokolovsky, Victor V. Kulagin, A. V. Biriukov, Sergei Pogrebenko, Dmitry A. Duev, and A. V. Kovalenko

Subjects
Physics, Radio telescope, On board, Spacecraft, General relativity, business.industry, Magnitude (astronomy), Measure (physics), Astronomy, Orbital eccentricity, Astrophysics::Earth and Planetary Astrophysics, business, Gravitational redshift
Abstract

A test of a cornerstone of general relativity, the gravitational redshift effect, is currently being conducted with the RadioAstron spacecraft, which is on a highly eccentric orbit around Earth. Using ground radio telescopes to record the spacecraft signal, synchronized to its ultra-stable on-board H-maser, we can probe the varying flow of time on board with unprecedented accuracy. The observations performed so far, currently being analyzed, have already allowed us to measure the effect with a relative accuracy of 4 × 10−4. We expect to reach 2.5 × 10−5 with additional observations in 2016, an improvement of almost a magnitude over the 40-year old result of the GP-A mission.

Published
2017

3. Radioastron (Spectr-R Project)—a radio telescope much larger than the earth: main parameters and prelaunch tests

Author

A. N. Zinoviev, M. V. Popov, A. I. Sheikhet, A. V. Biryukov, L. N. Likhacheva, B. B. Kreisman, B. A. Sakharov, V. E. Babyshkin, B. Z. Kanevskiy, K. G. Belousov, A. I. Smirnov, I. S. Vinogradov, N. G. Babakin, A. V. Kovalenko, N. S. Kardashev, M. G. Larionov, S. D. Fedorchuk, V. I. Vasil’kov, A. A. Belyaev, A. Yu. Kukushkin, Yu. Yu. Kovalev, Igor D. Novikov, R. V. Komaev, V. I. Kostenko, V. A. Serebrennikov, B. S. Novikov, V. V. Andreyanov, Yu. N. Ponomarev, V. E. Yakimov, T. A. Mizyakina, A. A. Bykadorov, A. E. Shirshakov, S. Yu. Medvedev, S. F. Likhachev, Yu.A. Alexandrov, V. A. Stepanyants, Yu. K. Pavlenko, A. S. Gvamichava, N. Ya. Nikolaev, M. V. Melekhin, V. N. Pyshnov, A. E. Bubnov, V. M. Rozhkov, Yu. A. Korneev, M. V. Shatskaya, and Y. A. Kovalev

Subjects
Radio telescope, Physics, Space and Planetary Science, Conjunction (astronomy), Astronomy, Astronomy and Astrophysics, Angular resolution, Space observatory, Remote sensing
Abstract

The Russian Academy of Sciences and the Russian Federal Space Agency are planning to launch Radioastron in 2011, which is a unique space observatory with a 10-meter reflector antenna. In conjunction with the largest ground-based radio telescopes and tracking stations, it forms the first system that will be able to carry out studies with a resolution millions of times greater than that of eyesight.

Published
2012

4. Radioastron (Spectr-R project)—a radio telescope much larger than the earth: Ground segment and key science areas

Author

A. A. Belyaev, T. A. Mizyakina, M. V. Popov, V. I. Vasil’kov, A. V. Biryukov, M. V. Melekhin, V. E. Yakimov, Yu.A. Alexandrov, B. A. Sakharov, Yu. K. Pavlenko, S. F. Likhachev, A. I. Sheikhet, K. G. Belousov, V. A. Stepanyants, M. V. Shatskaya, V. V. Andreyanov, M. G. Larionov, N. Ya. Nikolaev, A. I. Smirnov, A. S. Gvamichava, S. D. Fedorchuk, Yu. N. Ponomarev, V. N. Pyshnov, B. B. Kreisman, L. N. Likhacheva, B. Z. Kanevskiy, A. E. Bubnov, A. Yu. Kukushkin, A. A. Bykadorov, V. I. Kostenko, A. N. Zinoviev, S. Yu. Medvedev, V. M. Rozhkov, Yu. A. Korneev, Y. A. Kovalev, V. E. Babyshkin, A. E. Shirshakov, Igor D. Novikov, B. S. Novikov, I. S. Vinogradov, A. V. Kovalenko, N. S. Kardashev, N. G. Babakin, Yu. Yu. Kovalev, R. V. Komaev, and V. A. Serebrennikov

Subjects
Orbital elements, Physics, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Galaxy, Radio telescope, General Relativity and Quantum Cosmology, Interferometry, Quark star, Gravitational field, Space and Planetary Science, Planet, Astrophysics::Earth and Planetary Astrophysics, Interplanetary spaceflight, Astrophysics::Galaxy Astrophysics
Abstract

The space interferometer Radioastron is working jointly with the largest radio telescopes of the world. Ground tracking stations provide for retrieving the information and determining the orbital parameters for data processing centers. The project is aimed at systematic studies of images of radio emitting regions, their coordinates, and time-dependent variations near super-massive black holes in galactic nuclei, stellarmass black holes, neutron and quark stars, regions of star and planet formation in our and other galaxies, the structure of interplanetary and interstellar plasma, and the Earth’s gravitational field.

Published
2012

5. RadioAstron -- a Telescope with a Size of 300 000 km: Main Parameters and First Observational Results

Author

N. S. Kardashev, V. V. Khartov, V. V. Abramov, V. Yu. Avdeev, A. V. Alakoz, Yu. A. Aleksandrov, S. Ananthakrishnan, V. V. Andreyanov, A. S. Andrianov, N. M. Antonov, M. I. Artyukhov, M. Yu. Arkhipov, W. Baan, N. G. Babakin, V. E. Babyshkin, N. Bartel’, K. G. Belousov, A. A. Belyaev, J. J. Berulis, B. F. Burke, A. V. Biryukov, A. E. Bubnov, M. S. Burgin, G. Busca, A. A. Bykadorov, V. S. Bychkova, V. I. Vasil’kov, K. J. Wellington, I. S. Vinogradov, R. Wietfeldt, P. A. Voitsik, A. S. Gvamichava, I. A. Girin, L. I. Gurvits, R. D. Dagkesamanskii, L. D’Addario, G. Giovannini, D. L. Jauncey, P. E. Dewdney, A. A. D’yakov, V. E. Zharov, V. I. Zhuravlev, G. S. Zaslavskii, M. V. Zakhvatkin, A. N. Zinov’ev, Yu. Ilinen, A. V. Ipatov, B. Z. Kanevskii, I. A. Knorin, J. L. Casse, K. I. Kellermann, Yu. A. Kovalev, Yu. Yu. Kovalev, A. V. Kovalenko, B. L. Kogan, R. V. Komaev, A. A. Konovalenko, G. D. Kopelyanskii, Yu. A. Korneev, V. I. Kostenko, A. N. Kotik, B. B. Kreisman, A. Yu. Kukushkin, V. F. Kulishenko, D. N. Cooper, A. M. Kut’kin, W. H. Cannon, M. G. Larionov, M. M. Lisakov, L. N. Litvinenko, S. F. Likhachev, L. N. Likhacheva, A. P. Lobanov, S. V. Logvinenko, G. Langston, K. McCracken, S. Yu. Medvedev, M. V. Melekhin, A. V. Menderov, D. W. Murphy, T. A. Mizyakina, Yu. V. Mozgovoi, N. Ya. Nikolaev, B. S. Novikov, I. D. Novikov, V. V. Oreshko, Yu. K. Pavlenko, I. N. Pashchenko, Yu. N. Ponomarev, M. V. Popov, A. Pravin-Kumar, R. A. Preston, V. N. Pyshnov, I. A. Rakhimov, V. M. Rozhkov, J. D. Romney, P. Rocha, V. A. Rudakov, A. Räisänen, S. V. Sazankov, B. A. Sakharov, S. K. Semenov, V. A. Serebrennikov, R. T. Schilizzi, D. P. Skulachev, V. I. Slysh, A. I. Smirnov, J. G. Smith, V. A. Soglasnov, K. V. Sokolovskii, L. H. Sondaar, V. A. Stepan’yants, M. S. Turygin, S. Yu. Turygin, A. G. Tuchin, S. Urpo, S. D. Fedorchuk, A. M. Finkel’shtein, E. B. Fomalont, I. Fejes, A. N. Fomina, Yu. B. Khapin, G. S. Tsarevskii, J. A. Zensus, A. A. Chuprikov, M. V. Shatskaya, N. Ya. Shapirovskaya, A. I. Sheikhet, A. E. Shirshakov, A. Schmidt, L. A. Shnyreva, V. V. Shpilevskii, R. D. Ekers, and V. E. Yakimov

Subjects
Active galactic nucleus, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, law.invention, Radio telescope, Telescope, Astrophysical jet, law, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, Physics, Supermassive black hole, Star formation, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, Planetary system, Astrophysics - Astrophysics of Galaxies, Galaxy, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Russian Academy of Sciences and Federal Space Agency, together with the participation of many international organizations, worked toward the launch of the RadioAstron orbiting space observatory with its onboard 10-m reflector radio telescope from the Baikonur cosmodrome on July 18, 2011. Together with some of the largest ground-based radio telescopes and a set of stations for tracking, collecting, and reducing the data obtained, this space radio telescope forms a multi-antenna ground-space radio interferometer with extremely long baselines, making it possible for the first time to study various objects in the Universe with angular resolutions a million times better than is possible with the human eye. The project is targeted at systematic studies of compact radio-emitting sources and their dynamics. Objects to be studied include supermassive black holes, accretion disks, and relativistic jets in active galactic nuclei, stellar-mass black holes, neutron stars and hypothetical quark stars, regions of formation of stars and planetary systems in our and other galaxies, interplanetary and interstellar plasma, and the gravitational field of the Earth. The results of ground-based and inflight tests of the space radio telescope carried out in both autonomous and ground-space interferometric regimes are reported. The derived characteristics are in agreement with the main requirements of the project. The astrophysical science program has begun., 54 pages, 11 figures; published by Astronomicheskij Zhurnal (in Russian) and Astronomy Reports (in English)

Published
2013

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