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28 results on '"Fradkin, M. I."'

1. Characteristics of the GAMMA-400 gamma-ray telescope for searching for dark matter signatures

Author

Galper, A. M., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Boezio, M., Bonvicini, V., Boyarchuk, K. A., Vacchi, A., Vannuccini, E., Gusakov, Yu. V., Zampa, N., Zverev, V. G., Zirakashvili, V. N., Kaplin, V. A., Kachanov, V. A., Leonov, A. A., Longo, F., Mazets, E. P., Maestro, P., Marrocchesi, P., Mereminskiy, I. A., Mikhailov, V. V., Moiseev, A. A., Mocchiutti, E., Mori, N., Moskalenko, I. V., Naumov, P. Yu., Papini, P., Picozza, P., Rodin, V. G., Runtso, M. F., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Topchiev, N. P., Fradkin, M. I., Kheymits, M. D., and Yurkin, Y. T.

Published
2013
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3. Status of the GAMMA-400 Project

Author

Galper, A. M, Adriani, O, Aptekar, R. L, Arkhangelskaja, I. V, Arkhangelskiy, A. I, Boezio, M, Bonvicini, V, Boyarchuk, K. A, Gusakov, Yu. V, Farber, M. O, Fradkin, M. I, Kachanov, V. A, Kaplin, V. A, Kheymits, M. D, Leoniv, A. A, Longo, F, Maestro, P, Marrocchesi, P, Mazets, E. P, Mocchiutti, E, Moiseev, A. A, Mori, N, Moskalenko, I, Naumov, P. Yu, and Papini, P

Subjects
Astronomy
Abstract

The preliminary design of the new space gamma-ray telescope GAMMA-400 for the energy range 100 MeV-3 TeV is presented. The angular resolution of the instrument, 1-2 deg at E(gamma) approximately 100 MeV and approximately 0.01 at E(gamma) greater than 100 GeV, its energy resolution is approximately 1% at E(gamma) greater than 100 GeV, and the proton rejection factor is approximately 10(exp 6) are optimized to address a broad range of science topics, such as search for signatures of dark matter, studies of Galactic and extragalactic gamma-ray sources, Galactic and extragalactic diffuse emission, gamma-ray bursts, as well as high-precision measurements of spectra of cosmic-ray electrons, positrons, and nuclei.

Published
2013
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4. Scientific tasks and present status of the GAMMA-400 project

Author

Galper, A. M., Topchiev, N. P., Aptekar, R. L., Arkhangelskaja, I. V., Boezio, M., Bonvicini, V., Vacchi, A., Gecha, V. Ya., Dolgoshein, B. A., Zampa, N., Zverev, V. G., Kaplin, V. A., Kachanov, V. A., Mazets, E. P., Menshenin, A. L., Picozza, P., Prilutskii, O. F., Rodin, V. G., Runtso, M. F., Spillantini, P., Suchkov, S. I., Farber, M. O., Fradkin, M. I., and Yurkin, Yu. T.

Published
2011
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6. Design and Performance of the GAMMA-400 Gamma-Ray Telescope for Dark Matter Searches

Author

Galper, A.M, Adriani, O, Aptekar, R. L, Arkhangelskaja, I. V, Arkhangelskiy, A.I, Boezio, M, Bonvicini, V, Boyarchuk, K. A, Fradkin, M. I, Gusakov, Yu. V, Kaplin, V. A, Kachanov, V. A, Kheymits, M. D, Leonov, A. A, Longo, F, Mazets, E. P, Maestro, P, Marrocchesi, P, Mereminskiy, I. A, Mikhailov, V. V, Moiseev, A. A, Mocchiutti, E, Mori, N, Moskalenko, I. V, Naumov, P. Yu, Papini, P, Picozza, P, Rodin, V. G, Runtso, M. F, Sparvoli, R, Spillantini, P, Suchkov, S. I, Tavani, M, Topchiev, N. P, and Vacchi, A

Subjects
Astrophysics, Astronomy
Abstract

The GAMMA-400 gamma-ray telescope is designed to measure the fluxes of gamma-rays and cosmic-ray electrons + positrons, which can be produced by annihilation or decay of the dark matter particles, as well as to survey the celestial sphere in order to study point and extended sources of gamma-rays, measure energy spectra of Galactic and extragalactic diffuse gamma-ray emission, gamma-ray bursts, and gamma-ray emission from the Sun. GAMMA-400 covers the energy range from 100 MeV to 3000 GeV. Its angular resolution is approx. 0.01 deg (E(sub gamma) > 100 GeV), the energy resolution approx. 1% (E(sub gamma) > 10 GeV), and the proton rejection factor approx 10(exp 6). GAMMA-400 will be installed on the Russian space platform Navigator. The beginning of observations is planned for 2018.

Published
2012

7. Design and Performance of the GAMMA-400 Gamma-Ray Telescope for Dark Matter Searches

Author

Galper, A. M, Adriani, O, Aptekar, R. L, Arkhangelskaja, I. V, Arkhangelskiy, A. I, Boezio, M, Bonvicini, V, Boyarchuk, K. A, Fradkin, M. I, Gusakov, Yu V, Kaplin, V. A, Kachanov, V. A, Kheymits, M. D, Leonov, A. A, Longo, F, Mazets, E. P, Maestro, P, Marrocchesi, P, Mereminskiy, I. A, Mikhailov, V. V, Mocchiutti, E, Moiseev, A. A, Mori, N, Moskalenko, I. V, and Naumov, P. Yu

Subjects
Astrophysics
Abstract

The GAMMA-400 gamma-ray telescope is designed to measure the fluxes of gamma-rays and cosmic-ray electrons (+) positrons, which can be produced by annihilation or decay of the dark matter particles, as well as to survey the celestial sphere in order to study point and extended sources of gamma-rays, measure energy spectra of Galactic and extragalactic diffuse gamma-ray emission, gamma-ray bursts, and gamma-ray emission from the Sun. GAMMA-400 covers the energy range from 100 MeV to 3000 GeV. Its angular resolution is approximately 0.01deg (E(sub gamma) greater than 100 GeV), the energy resolution approximately 1% (E(sub gamma) greater than 10 GeV), and the proton rejection factor approximately 10(exp 6). GAMMA-400 will be installed on the Russian space platform Navigator. The beginning of observations is planned for 2018.

Published
2012

11. Dark Matter Search Perspectives with GAMMA-400

Author

Moiseev, A. A., Galper, A. M., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Avanesov, G. A., Bergstrom, L., Boezio, M., Bonvicini, V., Boyarchuk, K. A., Dogiel, V. A., Gusakov, Yu. V., Fradkin, M. I., Fuglesang, Ch., Hnatyk, B. I., Kachanov, V. A., Kaplin, V. A., Kheymits, M. D., Korepanov, V., Larsson, J., Leonov, A. A., Longo, F., Maestro, P., Marrocchesi, P., Mazets, E. P., Mikhailov, V. V., Mocchiutti, E., Mori, N., Moskalenko, I., Naumov, P. Yu., Papini, P., Pearce, M., Picozza, P., Runtso, M. F., Ryde, F., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Topchiev, N. P., Vacchi, A., Vannuccini, E., Yurkin, Yu. T., Zampa, N., Zarikashvili, V. N., and Zverev, V. G.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), 85-05, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

GAMMA-400 is a future high-energy gamma-ray telescope, designed to measure the fluxes of gamma-rays and cosmic-ray electrons + positrons, which can be produced by annihilation or decay of dark matter particles, and to survey the celestial sphere in order to study point and extended sources of gamma-rays, measure energy spectra of Galactic and extragalactic diffuse gamma-ray emission, gamma-ray bursts, and gamma-ray emission from the Sun. GAMMA-400 covers the energy range from 100 MeV to ~3000 GeV. Its angular resolution is ~0.01 deg(Eg > 100 GeV), and the energy resolution ~1% (Eg > 10 GeV). GAMMA-400 is planned to be launched on the Russian space platform Navigator in 2019. The GAMMA-400 perspectives in the search for dark matter in various scenarios are presented in this paper, 4 pages, 4 figures, submitted to the Proceedings of the International Cosmic-Ray Conference 2013, Brazil, Rio de Janeiro

Published
2013

12. Determination of the characteristics of the gamma-ray telescope Gamma-1

Author

Akimov, V. V., Balebanov, V. M., Belousov, A. S., Blokhintsev, I. D., Volzhenskaya, V. A., Gerasimov, I. A., Dobrijan, M. B., Kalinkin, L. F., Kozlov, V. D., Kotova, V. B., Leikov, N. G., Mordvov, N. K., Nagornih, Yu. I., Nesterov, V. E., Poluektov, V. P., Prilutsky, O. F., Prokhin, V. L., Repin, S. V., Rodin, V. G., Serov, A. V., Tabaldiev, S. R., Tugaenko, V. Yu., Voronov, S. A., Galper, A. M., Grigoriev, V. A., Zverev, V. G., Zemskov, V. M., Kalinin, I. V., Kirillov-Ugriumov, V. G., Ozerov, Yu. V., Popov, A. V., Runtso, M. F., Yurkin, Yu. T., Kurnosova, L. V., Rusakovich, M. A., Topchiev, N. P., Fradkin, M. I., Chuikin, E. I., Gros, M., Leray, J. P., Masse, P., Parlier, B., Soroka, F., Bazer-Bachi, A. R., and Lavigne, Y. M.

Published
1989
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15. The gamma-ray telescope Gamma-1

Author

Akimov, V. V., Balebanov, V. M., Belousov, A. S., Blokhintsev, I. D., Veselova, G. V., Dobrijan, M. B., Kalinkin, L. F., Kovalenko, S. V., Kozlov, V. D., Leikov, N. G., Mordvov, N. K., Nagornih, Y. I., Nesterov, V. E., Prilutsky, O. F., Prohin, V. L., Rodin, V. G., Tabaldiev, S. R., Chuprov, V. N., Fuks, V. I., Gerasimov, I. A., Ovtchinnikov, V. S., Poluektov, V. P., Serov, A. V., Tugaenko, V. Y., Kurnosova, L. V., Rusakovich, M. A., Topchiev, N. P., Fradkin, M. I., Bugakov, I. F., Gorodinsky, G. M., Chuikin, E. I., Voronov, S. A., Galper, A. M., Grigoriev, V. A., Guzenko, M. V., Kirillov-Ugriumov, V. G., Koldashov, S. V., Korotkov, M. G., Luchkov, B. I., Moiseev, A. A., Ozerov, Yu. V., Popov, A. V., Rud'ko, V. A., Runtso, M. F., Chesnokov, B. Yu., Agrinier, B., Bouere, A., Gros, M., Leray, J. P., Leconte, A., Masse, P., Mougin, B., Keirle, P., Cretolle, J., Paul, J., Raviart, A., Parlier, B., Poiviller, M., Hugot, C., Soroka, F., Serra, G., Bazer-Bachi, A. R., Doulade, C., Ducros, J., Vedrenne, G., Cotin, F., Lavigne, Y. M., Mandrou, P., Orsal, E., Avignon, M., Durand, J., Joli, J., Gardon, F., Mouli, J., Nobileau, M., and Fournier, D.

Published
1989
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17. The Space-Based Gamma-Ray Telescope GAMMA-400 and Its Scientific Goals

Author

Galper, A. M., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Avanesov, G. A., Bergstrom, L., Bogomolov, E. A., Boezio, M., Boyarchuk, V. Bonvicini K. A., Dogiel, V. A., Gusakov, Y. u. V., Fradkin, M. I., Fuglesang, C. h., Hnatyk, B. I., Kachanov, V. A., Kadilin, V. V., Kaplin, V. A., Kheymits, M. D., Korepanov, V., Larsson, J., Leonov, A. A., Longo, F., Maestro, Paolo, Marrocchesi, PIER SIMONE, Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Mori, N., Moskalenko, I., Naumov, P. Y. u., Papini, P., Pearce, M., Picozza, P., Runtso, M. F., Ryde, F., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Topchiev, N. P., Vacchi, A., Vannuccini, E., Vasiliev, G. I., Yurkin, Y. u. T., Zampa, N., Zarikashvili, V. N., and Zverev, V. G.

Subjects
Gamma-ray astronomy, Positrons, Dark matter, Electrons, Gamma-ray telescope, Nuclei
Published
2013

19. GAMMA-400 space observatory

Author

Galper, A. M., Aptekar, R. L., Arkhangelskaya, I. V., Boezio, M., Bonvicini, V., Dolgoshein, B. A., Farber, M. O., Fradkin, M. I., Gecha, V. Ya., Kachanov, V. A., Kaplin, V. A., Mazets, E. P., Menshenin, A. L., Picozza, P., Prilutskii, O. F., Runtso, M. F., Spillantini, P., Suchkov, S. I., Topchiev, N. P., Vacchi, A., Yurkin, Yu. T., Zampa, N., and Zverev, V. G.

Subjects
Physics and Astronomy (miscellaneous), Astronomy and Astrophysics
Published
2011

20. Gamma-radiation with E gamma 5 MeV detected from Seyfert galaxy 3C120 and region with 1' = 190 deg and b' = 20 deg

Author

Damle, S. V, Fradkin, M. I, Iyudin, A. F, Kirillov-Ugryumov, V. G, Kotov, Y. D, Kurnosova, L. V, Smirnov, Y. V, and Yurov, V. N

Subjects
Space Radiation
Abstract

The observation of the Galaxy anticenter region in gamma-rays with E gamma = 5 / 100 MeV was made by gamma-telescope Natalya-1 in a balloon flight. The flight was performed at the ceiling 5.1 + or - 0.1 g/sq cm, magnetic cutoff being 17 GV. The description of the instrument and the analysis of the experiment conditions are given. The tracks of electron-positron pairs generated by gamma-quanta in the convertors were detected by wire spark chambers. The recorded events were classified manually by an operator using a graphic display into three classes: pairs, single and bad events. The arrival angle of gamma-quanta and their energy for selected gamma-ray events (pairs and singles) were determined through multiple scattering of pair components in the convertors. On the basis of the data obtained the celestial maps were made in gamma-rays for E sub gamma 5 MeV and E gamma 20 MeV energy ranges.

Published
1985

21. The possibility of using superconductive systems in the analysis of the composition of cosmic rays

Author

Anashkin, O. P, Belitskiy, B. M, Brodskiy, V. B, Kurnosova, L. V, Mikhaylov, N. N, Razorenov, L. A, Sidyakina, L. A, and Fradkin, M. I

Subjects
Space Radiation
Abstract

The experimental results on the use of superconductive systems onboard of spacecraft are described. To ensure low temperatures in the cryostat under weightlessness, helium was used at a pressure above the critical pressure. In flight, the temperature was controlled at six points, while the pressure and intensity of the magnetic field were controlled in the solenoids. The methodical test proved it possible to mount special installations on satellites, with extensive magnetic fields based on superconductive alloys, and particularly, low weights and low power consumption magnetic analyzers.

Published
1975

22. The primary component of cosmic radiation

Author

Fradkin, M. I, Ginzburg, V. L, Kurnosova, L. V, Logachev, V. I, and Razorenov, L. A

Subjects
Space Radiation
Abstract

Chemical composition of cosmic rays

Published
1967

26. Design and performance of the GAMMA-400 gamma-ray telescope for dark matter searches.

Author

Galper, A. M., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Boezio, M., Bonvicini, V., Boyarchuk, K. A., Fradkin, M. I., Gusakov, Yu. V., Kaplin, V. A., Kachanov, V. A., Kheymits, M. D., Leonov, A. A., Longo, F., Mazets, E. P., Maestro, P., Marrocchesi, P., Mereminskiy, I. A., and Mikhailov, V. V.

Subjects
GAMMA ray telescopes, PERFORMANCE evaluation, DARK matter, ELECTRONS, GALACTIC cosmic rays, NUCLEAR energy
Abstract

The GAMMA-400 gamma-ray telescope is designed to measure the fluxes of gamma-rays and cosmic-ray electrons + positrons, which can be produced by annihilation or decay of the dark matter particles, as well as to survey the celestial sphere in order to study point and extended sources of gamma-rays, measure energy spectra of Galactic and extragalactic diffuse gamma-ray emission, gamma-ray bursts, and gamma-ray emission from the Sun. GAMMA-400 covers the energy range from 100 MeV to 3000 GeV. Its angular resolution is ∼0.01° (Eγ > 100 GeV), the energy resolution ∼1% (Eγ > 10 GeV), and the proton rejection factor ∼106. GAMMA-400 will be installed on the Russian space platform Navigator. The beginning of observations is planned for 2018. [ABSTRACT FROM AUTHOR]

Published
2013
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27. The possibilities of simultaneous detection of gamma rays, cosmic-ray electrons and positrons on the GAMMA-400 space observatory.

Author

Galper, A. M., Aptekar, R. L., Arkhangelskaya, I. V., Boezio, M., Bonvicini, V., Dolgoshein, B. A., Farber, M. O., Fradkin, M. I., Gecha, V. Ya., Kachanov, V. A., Kaplin, V. A., Mazets, E. P., Menshenin, A. L., Picozza, P., Prilutskii, O. F., Rodin, V. G., Runtso, M. F., Spillantini, P., Suchkov, S. I., and Topchiev, N. P.

Subjects
GAMMA rays, COSMIC rays, ELECTRONS, POSITRONS, DARK matter, PROTONS, COLORIMETRY
Abstract

The GAMMA-400 space observatory will provide precise measurements of gamma rays, electrons, and positrons in the energy range 0.1-3000 GeV. The good angular and energy resolutions, as well as identification capabilities (angular resolution ∼ 0.01°, energy resolution ∼ 1%, and proton rejection factor ∼ 106) will allow us to study the main galactic and extragalactic sources, diffuse gamma-ray background, gamma-ray bursts, and to measure electron and positron fluxes. The peculiar characteristics of the experiment is simultaneous detection of gamma rays and cosmic-ray electrons and positrons, which can be connected with annihilation or decay of dark matter particles. [ABSTRACT FROM AUTHOR]

Published
2011
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