1,997 results on '"Larionov, V"'
Search Results
202. Variability of the blazar 3C 454.3 during 2007–2010
- Author
-
Hagen-Thorn, V. A., Larionov, V. M., Blinov, D. A., Arkharov, A. A., Hagen-Thorn, E. I., Borisova, E. V., Takalo, L. O., and Sillanpää, A.
- Published
- 2013
- Full Text
- View/download PDF
203. Interpreting the simultaneous variability of near-IR continuum and line emission in young stellar objects
- Author
-
Lorenzetti, D., Antoniucci, S., Giannini, T., Di Paola, A., Arkharov, A. A., and Larionov, V. M.
- Published
- 2013
- Full Text
- View/download PDF
204. A novel type of catalysts for the asymmetric C-C bond formation based on chiral stereochemically inert cationic Co iii complexes
- Author
-
Belokon, Yu. N., Larionov, V. A., Mkrtchyan, A. F., Khrustalev, V. N., Nijland, A., Saghyan, A. S., Godovikov, I. A., Peregudov, A. S., Babievsky, K. K., Ikonnikov, N. S., and Maleev, V. I.
- Published
- 2012
- Full Text
- View/download PDF
205. Short-timescale variability of the blazar Mrk 421 from AstroSat and simultaneous multi-wavelength observations
- Author
-
Chatterjee, Ritaban, primary, Das, Susmita, additional, Khasnovis, Archishman, additional, Ghosh, Ritesh, additional, Kumari, Neeraj, additional, Naik, Sachindra, additional, Larionov, V. M., additional, Grishina, T. S., additional, Kopatskaya, E. N., additional, Larionova, E. G., additional, Nikiforova, A. A., additional, Morozov, D. A., additional, Savchenko, S. S., additional, Troitskaya, Yu. V., additional, Troitsky, I. S., additional, and Vasilyev, A. A., additional
- Published
- 2021
- Full Text
- View/download PDF
206. Repeated pattern of gamma-ray flares in the light curve of the blazar 3C 279
- Author
-
Blinov, D, primary, Jorstad, S G, additional, Larionov, V M, additional, MacDonald, N R, additional, Grishina, T, additional, Kopatskaya, E, additional, Larionova, E, additional, Larionova, L, additional, Morozova, D, additional, Nikiforova, A, additional, Savchenko, S, additional, Troitskaya, Y, additional, and Troitsky, I, additional
- Published
- 2021
- Full Text
- View/download PDF
207. The complex variability of blazars: time-scales and periodicity analysis in S4 0954+65
- Author
-
Raiteri, C M, primary, Villata, M, additional, Larionov, V M, additional, Jorstad, S G, additional, Marscher, A P, additional, Weaver, Z R, additional, Acosta-Pulido, J A, additional, Agudo, I, additional, Andreeva, T, additional, Arkharov, A, additional, Bachev, R, additional, Benítez, E, additional, Berton, M, additional, Björklund, I, additional, Borman, G A, additional, Bozhilov, V, additional, Carnerero, M I, additional, Carosati, D, additional, Casadio, C, additional, Chen, W P, additional, Damljanovic, G, additional, D’Ammando, F, additional, Escudero, J, additional, Fuentes, A, additional, Giroletti, M, additional, Grishina, T S, additional, Gupta, A C, additional, Hagen-Thorn, V A, additional, Hart, M, additional, Hiriart, D, additional, Hou, W-J, additional, Ivanov, D, additional, Kim, J-Y, additional, Kimeridze, G N, additional, Konstantopoulou, C, additional, Kopatskaya, E N, additional, Kurtanidze, O M, additional, Kurtanidze, S O, additional, Lähteenmäki, A, additional, Larionova, E G, additional, Larionova, L V, additional, Marchili, N, additional, Markovic, G, additional, Minev, M, additional, Morozova, D A, additional, Myserlis, I, additional, Nakamura, M, additional, Nikiforova, A A, additional, Nikolashvili, M G, additional, Otero-Santos, J, additional, Ovcharov, E, additional, Pursimo, T, additional, Rahimov, I, additional, Righini, S, additional, Sakamoto, T, additional, Savchenko, S S, additional, Semkov, E H, additional, Shakhovskoy, D, additional, Sigua, L A, additional, Stojanovic, M, additional, Strigachev, A, additional, Thum, C, additional, Tornikoski, M, additional, Traianou, E, additional, Troitskaya, Y V, additional, Troitskiy, I S, additional, Tsai, A, additional, Valcheva, A, additional, Vasilyev, A A, additional, Vince, O, additional, and Zaharieva, E, additional
- Published
- 2021
- Full Text
- View/download PDF
208. Equation of the gas oscillation frequencies in a closed-circuit Helmholtz resonator type combustion chamber
- Author
-
Larionov, V M, primary, Iovleva, O V, additional, Semenova, E V, additional, Yunusova, E A, additional, and Larionova, I V, additional
- Published
- 2021
- Full Text
- View/download PDF
209. Acoustic oscillations of the gas with axial distribution of average temperature in the vortex combustion chamber
- Author
-
Malakhov, A O, primary, Larionov, V M, additional, Khalilov, A R, additional, Fadeev, S A, additional, and Iovleva, O V, additional
- Published
- 2021
- Full Text
- View/download PDF
210. Analysis of the effect of combustion chamber length on the gas oscillations characteristics
- Author
-
Malakhov, A O, primary, Larionov, V M, additional, Khalilov, A R, additional, Nazarychev, S A, additional, and Konstantinov, N V, additional
- Published
- 2021
- Full Text
- View/download PDF
211. Thermodynamic combustion analysis of methane-hydrogen and methane-propane-butane mixture in a water heating installation
- Author
-
Nazarychev, S A, primary, Larionov, V M, additional, Malahov, A O, additional, and Larionova, I V, additional
- Published
- 2021
- Full Text
- View/download PDF
212. VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020
- Author
-
Acciari, V. A. (V. A.), Ansoldi, S. (S.), Antonelli, L. A. (L. A.), Engels, A. A. (A. Arbet), Artero, M. (M.), Asano, K. (K.), Baack, D. (D.), Babic, A. (A.), Baquero, A. (A.), de Almeida, U. B. (U. Barres), Barrio, J. A. (J. A.), Becerra Gonzalez, J. (J.), Bednarek, W. (W.), Bellizzi, L. (L.), Bernardini, E. (E.), Bernardos, M. (M.), Berti, A. (A.), Besenrieder, J. (J.), Bhattacharyya, W. (W.), Bigongiari, C. (C.), Biland, A. (A.), Blanch, O. (O.), Bonnoli, G. (G.), Bosnjak, Z. (Z.), Busetto, G. (G.), Carosi, R. (R.), Ceribella, G. (G.), Cerruti, M. (M.), Chai, Y. (Y.), Chilingarian, A. (A.), Cikota, S. (S.), Colak, S. M. (S. M.), Colombo, E. (E.), Contreras, J. L. (J. L.), Cortina, J. (J.), Covino, S. (S.), D'Amico, G. (G.), D'Elia, V. (V.), Da Vela, P. (P.), Dazzi, F. (F.), De Angelis, A. (A.), De Lotto, B. (B.), Delfino, M. (M.), Delgado, J. (J.), Delgado Mendez, C. (C.), Depaoli, D. (D.), Di Pierro, F. (F.), Di Venere, L. (L.), Do Souto Espineira, E. (E.), Prester, D. D. (D. Dominis), Donini, A. (A.), Dorner, D. (D.), Doro, M. (M.), Elsaesser, D. (D.), Ramazani, V. F. (V. Fallah), Fattorini, A. (A.), Ferrara, G. (G.), Foffano, L. (L.), Fonseca, M. V. (M. V.), Font, L. (L.), Fruck, C. (C.), Fukami, S. (S.), Garcia Lopez, R. J. (R. J.), Garczarczyk, M. (M.), Gasparyan, S. (S.), Gaug, M. (M.), Giglietto, N. (N.), Giordano, F. (F.), Gliwny, P. (P.), Godinovic, N. (N.), Green, J. G. (J. G.), Green, D. (D.), Hadasch, D. (D.), Hahn, A. (A.), Heckmann, L. (L.), Herrera, J. (J.), Hoang, J. (J.), Hrupec, D. (D.), Hutten, M. (M.), Inada, T. (T.), Inoue, S. (S.), Ishio, K. (K.), Iwamura, Y. (Y.), Jormanainen, J. (J.), Jouvin, L. (L.), Kajiwara, Y. (Y.), Karjalainen, M. (M.), Kerszberg, D. (D.), Kobayashi, Y. (Y.), Kubo, H. (H.), Kushida, J. (J.), Lamastra, A. (A.), Lelas, D. (D.), Leone, F. (F.), Lindfors, E. (E.), Lombardi, S. (S.), Longo, F. (F.), Lopez-Coto, R. (R.), Lopez-Moya, M. (M.), Lopez-Oramas, A. (A.), Loporchio, S. (S.), Fraga, B. M. (B. Machado de Oliveira), Maggio, C. (C.), Majumdar, P. (P.), Makariev, M. (M.), Mallamaci, M. (M.), Maneva, G. (G.), Manganaro, M. (M.), Mannheim, K. (K.), Maraschi, L. (L.), Mariotti, M. (M.), Martinez, M. (M.), Mazin, D. (D.), Mender, S. (S.), Micanovic, S. (S.), Miceli, D. (D.), Miener, T. (T.), Minev, M. (M.), Miranda, J. M. (J. M.), Mirzoyan, R. (R.), Molina, E. (E.), Moralejo, A. (A.), Morcuende, D. (D.), Moreno, V. (V.), Moretti, E. (E.), Neustroev, V. (V.), Nigro, C. (C.), Nilsson, K. (K.), Ninci, D. (D.), Nishijima, K. (K.), Noda, K. (K.), Nozaki, S. (S.), Ohtani, Y. (Y.), Oka, T. (T.), Otero-Santos, J. (J.), Paiano, S. (S.), Palatiello, M. (M.), Paneque, D. (D.), Paoletti, R. (R.), Paredes, J. M. (J. M.), Pavletic, L. (L.), Penil, P. (P.), Perennes, C. (C.), Persic, M. (M.), Moroni, P. G. (P. G. Prada), Prandini, E. (E.), Priyadarshi, C. (C.), Puljak, I. (I.), Rhode, W. (W.), Ribo, M. (M.), Rico, J. (J.), Righi, C. (C.), Rugliancich, A. (A.), Saha, L. (L.), Sahakyan, N. (N.), Saito, T. (T.), Sakurai, S. (S.), Satalecka, K. (K.), Saturni, F. G. (F. G.), Schleicher, B. (B.), Schmidt, K. (K.), Schweizer, T. (T.), Sitarek, J. (J.), Snidaric, I. (I.), Sobczynska, D. (D.), Spolon, A. (A.), Stamerra, A. (A.), Strom, D. (D.), Strzys, M. (M.), Suda, Y. (Y.), Suric, T. (T.), Takahashi, M. (M.), Tavecchio, F. (F.), Temnikov, P. (P.), Terzic, T. (T.), Teshima, M. (M.), Torres-Alba, N. (N.), Tosti, L. (L.), Truzzi, S. (S.), Tutone, A. (A.), van Scherpenberg, J. (J.), Vanzo, G. (G.), Vazquez Acosta, M. (M.), Ventura, S. (S.), Verguilov, V. (V.), Vigorito, C. F. (C. F.), Vitale, V. (V.), Vovk, I. (I.), Will, M. (M.), Zaric, D. (D.), Angioni, R. (R.), D'Ammando, F. (F.), Ciprini, S. (S.), Cheung, C. C. (C. C.), Orienti, M. (M.), Pacciani, L. (L.), Prajapati, P. (P.), Kumar, P. (P.), Ganesh, S. (S.), Kurtenkov, A. (A.), Marchini, A. (A.), Carrasco, L. (L.), Escobedo, G. (G.), Porras, A. (A.), Recillas, E. (E.), Lahteenmaki, A. (A.), Tornikoski, M. (M.), Berton, M. (M.), Tammi, J. (J.), Vera, R. J. (R. J. C.), Jorstad, S. G. (S. G.), Marscher, A. P. (A. P.), Weaver, Z. R. (Z. R.), Hart, M. (M.), Hallum, M. K. (M. K.), Larionov, V. M. (V. M.), Borman, G. A. (G. A.), Grishina, T. S. (T. S.), Kopatskaya, E. N. (E. N.), Larionova, E. G. (E. G.), Nikiforova, A. A. (A. A.), Morozova, D. A. (D. A.), Savchenko, S. S. (S. S.), Troitskaya, Y. V. (Yu. V.), Troitsky, I. S. (I. S.), Vasilyev, A. A. (A. A.), Hodges, M. (M.), Hovatta, T. (T.), Kiehlmann, S. (S.), Max-Moerbeck, W. (W.), Readhead, A. C. (A. C. S.), Reeves, R. (R.), Pearson, T. J. (T. J.), Acciari, V. A. (V. A.), Ansoldi, S. (S.), Antonelli, L. A. (L. A.), Engels, A. A. (A. Arbet), Artero, M. (M.), Asano, K. (K.), Baack, D. (D.), Babic, A. (A.), Baquero, A. (A.), de Almeida, U. B. (U. Barres), Barrio, J. A. (J. A.), Becerra Gonzalez, J. (J.), Bednarek, W. (W.), Bellizzi, L. (L.), Bernardini, E. (E.), Bernardos, M. (M.), Berti, A. (A.), Besenrieder, J. (J.), Bhattacharyya, W. (W.), Bigongiari, C. (C.), Biland, A. (A.), Blanch, O. (O.), Bonnoli, G. (G.), Bosnjak, Z. (Z.), Busetto, G. (G.), Carosi, R. (R.), Ceribella, G. (G.), Cerruti, M. (M.), Chai, Y. (Y.), Chilingarian, A. (A.), Cikota, S. (S.), Colak, S. M. (S. M.), Colombo, E. (E.), Contreras, J. L. (J. L.), Cortina, J. (J.), Covino, S. (S.), D'Amico, G. (G.), D'Elia, V. (V.), Da Vela, P. (P.), Dazzi, F. (F.), De Angelis, A. (A.), De Lotto, B. (B.), Delfino, M. (M.), Delgado, J. (J.), Delgado Mendez, C. (C.), Depaoli, D. (D.), Di Pierro, F. (F.), Di Venere, L. (L.), Do Souto Espineira, E. (E.), Prester, D. D. (D. Dominis), Donini, A. (A.), Dorner, D. (D.), Doro, M. (M.), Elsaesser, D. (D.), Ramazani, V. F. (V. Fallah), Fattorini, A. (A.), Ferrara, G. (G.), Foffano, L. (L.), Fonseca, M. V. (M. V.), Font, L. (L.), Fruck, C. (C.), Fukami, S. (S.), Garcia Lopez, R. J. (R. J.), Garczarczyk, M. (M.), Gasparyan, S. (S.), Gaug, M. (M.), Giglietto, N. (N.), Giordano, F. (F.), Gliwny, P. (P.), Godinovic, N. (N.), Green, J. G. (J. G.), Green, D. (D.), Hadasch, D. (D.), Hahn, A. (A.), Heckmann, L. (L.), Herrera, J. (J.), Hoang, J. (J.), Hrupec, D. (D.), Hutten, M. (M.), Inada, T. (T.), Inoue, S. (S.), Ishio, K. (K.), Iwamura, Y. (Y.), Jormanainen, J. (J.), Jouvin, L. (L.), Kajiwara, Y. (Y.), Karjalainen, M. (M.), Kerszberg, D. (D.), Kobayashi, Y. (Y.), Kubo, H. (H.), Kushida, J. (J.), Lamastra, A. (A.), Lelas, D. (D.), Leone, F. (F.), Lindfors, E. (E.), Lombardi, S. (S.), Longo, F. (F.), Lopez-Coto, R. (R.), Lopez-Moya, M. (M.), Lopez-Oramas, A. (A.), Loporchio, S. (S.), Fraga, B. M. (B. Machado de Oliveira), Maggio, C. (C.), Majumdar, P. (P.), Makariev, M. (M.), Mallamaci, M. (M.), Maneva, G. (G.), Manganaro, M. (M.), Mannheim, K. (K.), Maraschi, L. (L.), Mariotti, M. (M.), Martinez, M. (M.), Mazin, D. (D.), Mender, S. (S.), Micanovic, S. (S.), Miceli, D. (D.), Miener, T. (T.), Minev, M. (M.), Miranda, J. M. (J. M.), Mirzoyan, R. (R.), Molina, E. (E.), Moralejo, A. (A.), Morcuende, D. (D.), Moreno, V. (V.), Moretti, E. (E.), Neustroev, V. (V.), Nigro, C. (C.), Nilsson, K. (K.), Ninci, D. (D.), Nishijima, K. (K.), Noda, K. (K.), Nozaki, S. (S.), Ohtani, Y. (Y.), Oka, T. (T.), Otero-Santos, J. (J.), Paiano, S. (S.), Palatiello, M. (M.), Paneque, D. (D.), Paoletti, R. (R.), Paredes, J. M. (J. M.), Pavletic, L. (L.), Penil, P. (P.), Perennes, C. (C.), Persic, M. (M.), Moroni, P. G. (P. G. Prada), Prandini, E. (E.), Priyadarshi, C. (C.), Puljak, I. (I.), Rhode, W. (W.), Ribo, M. (M.), Rico, J. (J.), Righi, C. (C.), Rugliancich, A. (A.), Saha, L. (L.), Sahakyan, N. (N.), Saito, T. (T.), Sakurai, S. (S.), Satalecka, K. (K.), Saturni, F. G. (F. G.), Schleicher, B. (B.), Schmidt, K. (K.), Schweizer, T. (T.), Sitarek, J. (J.), Snidaric, I. (I.), Sobczynska, D. (D.), Spolon, A. (A.), Stamerra, A. (A.), Strom, D. (D.), Strzys, M. (M.), Suda, Y. (Y.), Suric, T. (T.), Takahashi, M. (M.), Tavecchio, F. (F.), Temnikov, P. (P.), Terzic, T. (T.), Teshima, M. (M.), Torres-Alba, N. (N.), Tosti, L. (L.), Truzzi, S. (S.), Tutone, A. (A.), van Scherpenberg, J. (J.), Vanzo, G. (G.), Vazquez Acosta, M. (M.), Ventura, S. (S.), Verguilov, V. (V.), Vigorito, C. F. (C. F.), Vitale, V. (V.), Vovk, I. (I.), Will, M. (M.), Zaric, D. (D.), Angioni, R. (R.), D'Ammando, F. (F.), Ciprini, S. (S.), Cheung, C. C. (C. C.), Orienti, M. (M.), Pacciani, L. (L.), Prajapati, P. (P.), Kumar, P. (P.), Ganesh, S. (S.), Kurtenkov, A. (A.), Marchini, A. (A.), Carrasco, L. (L.), Escobedo, G. (G.), Porras, A. (A.), Recillas, E. (E.), Lahteenmaki, A. (A.), Tornikoski, M. (M.), Berton, M. (M.), Tammi, J. (J.), Vera, R. J. (R. J. C.), Jorstad, S. G. (S. G.), Marscher, A. P. (A. P.), Weaver, Z. R. (Z. R.), Hart, M. (M.), Hallum, M. K. (M. K.), Larionov, V. M. (V. M.), Borman, G. A. (G. A.), Grishina, T. S. (T. S.), Kopatskaya, E. N. (E. N.), Larionova, E. G. (E. G.), Nikiforova, A. A. (A. A.), Morozova, D. A. (D. A.), Savchenko, S. S. (S. S.), Troitskaya, Y. V. (Yu. V.), Troitsky, I. S. (I. S.), Vasilyev, A. A. (A. A.), Hodges, M. (M.), Hovatta, T. (T.), Kiehlmann, S. (S.), Max-Moerbeck, W. (W.), Readhead, A. C. (A. C. S.), Reeves, R. (R.), and Pearson, T. J. (T. J.)
- Abstract
Context.: QSO B1420+326 is a blazar classified as a flat-spectrum radio quasar (FSRQ). At the beginning of the year 2020, it was found to be in an enhanced flux state and an extensive multiwavelength campaign allowed us to trace the evolution of the flare. Aims.: We search for very high-energy (VHE) gamma-ray emission from QSO B1420+326 during this flaring state. We aim to characterize and model the broadband emission of the source over different phases of the flare. Methods: The source was observed with a number of instruments in radio, near-infrared, optical (including polarimetry and spectroscopy), ultraviolet, X-ray, and gamma-ray bands. We use dedicated optical spectroscopy results to estimate the accretion disk and the dust torus luminosity. We performed spectral energy distribution modeling in the framework of combined synchrotron-self-Compton and external Compton scenario in which the electron energy distribution is partially determined from acceleration and cooling processes. Results: During the enhanced state, the flux of both SED components of QSO B1420+326 drastically increased and the peaks were shifted to higher energies. Follow-up observations with the MAGIC telescopes led to the detection of VHE gamma-ray emission from this source, making it one of only a handful of FSRQs known in this energy range. Modeling allows us to constrain the evolution of the magnetic field and electron energy distribution in the emission region. The gamma-ray flare was accompanied by a rotation of the optical polarization vector during a low -polarization state. Also, a new superluminal radio knot contemporaneously appeared in the radio image of the jet. The optical spectroscopy shows a prominent FeII bump with flux evolving together with the continuum emission and a MgII line with varying equivalent width.
- Published
- 2021
213. Conditions for exciting the maximal gas vibration amplitude in a combustion chamber of the Helmholtz resonator type
- Author
-
Iovleva, O. V. and Larionov, V. M.
- Published
- 2012
- Full Text
- View/download PDF
214. Closed classes containing a homogeneous function class
- Author
-
Larionov, V. B. and Fedorova, V. S.
- Published
- 2012
- Full Text
- View/download PDF
215. Properties and structural state of the surface layer in a zirconium alloy modified by a pulsed electron beam and saturated by hydrogen
- Author
-
Chernov, I. P., Ivanova, S. V., Krening, M. Kh., Koval’, N., Larionov, V. V., Lider, A. M., Pushilina, N. S., Stepanova, E. N., Stepanova, O. M., and Cherdantsev, Yu. P.
- Published
- 2012
- Full Text
- View/download PDF
216. Radiation-stimulated hydrogen transfer in metals and alloys
- Author
-
Chernov, I. P., Rusetsky, A. S., Krasnov, D. N., Larionov, V. V., Sigfusson, T. I., and Tyurin, Yu. I.
- Published
- 2011
- Full Text
- View/download PDF
217. Hydrogen migration in metals under the combined action of acoustic and ionizing radiation
- Author
-
Lider, A. M., Krening, M., Larionov, V. V., and Garanin, G. V.
- Published
- 2011
- Full Text
- View/download PDF
218. Ionizing radiation-stimulated diffusion and desorption of hydrogen from metals
- Author
-
Tyurin, Yu. I., Nikitenkov, N. N., and Larionov, V. V.
- Published
- 2011
- Full Text
- View/download PDF
219. Nuclear reactions in the Pd/PdO:D x and Ti/TiO2:D x systems excited by ionizing radiation
- Author
-
Chernov, I. P., Rusetskii, A. S., Krasnov, D. N., Larionov, V. V., Lyakhov, B. F., Saunin, E. I., Tyurin, Yu. I., and Cherdantsev, Yu. P.
- Published
- 2011
- Full Text
- View/download PDF
220. Multi-Frequency Observations of Gamma-Ray Blazar 1633+382
- Author
-
Jorstad, S. G., Marscher, A. P., Agudo, I., Smith, P. S., Larionov, V. M., and Lähteenmäki, A.
- Published
- 2011
- Full Text
- View/download PDF
221. Annual cycle of the planktonic phytocenosis in the Ob-Enisei shallow zone of the Kara Sea
- Author
-
Makarevich, P. R. and Larionov, V. V.
- Published
- 2011
- Full Text
- View/download PDF
222. Features of excitation of the hydrogen (deuterium)-metal system by an electron bunch
- Author
-
Tyurin, Yu. I., Larionov, V. V., Chernov, I. P., and Sklyarova, E. A.
- Published
- 2011
- Full Text
- View/download PDF
223. Production of high-energy deuterons upon electron-beam excitation of deuterium-saturated palladium
- Author
-
Chernov, I. P., Larionov, V. V., Lipson, A. G., and Tyurin, Yu. I.
- Published
- 2010
- Full Text
- View/download PDF
224. Isotope effects induced by the action of ions on the surface of solids
- Author
-
Nikitenkov, N. N., Larionov, V. V., and Tyurin, Yu. I.
- Published
- 2010
- Full Text
- View/download PDF
225. Luminescence of solids excited by adsorbed oxygen atoms
- Author
-
Tyurin, Yu. I., Shigalugov, S. Kh., Emel’yanov, V. N., Kataev, A. N., Malovichko, Yu. V., Plotnikova, E. Yu., Sivov, Yu. A., Khoruzhii, V. D., and Larionov, V. V.
- Published
- 2010
- Full Text
- View/download PDF
226. Isotope distribution in electrochemical ion implantation in metals and composite materials
- Author
-
Larionov, V. V., Nikitenkov, N. N., and Tyurin, Yu. I.
- Published
- 2010
- Full Text
- View/download PDF
227. AFGL 2881 = V366 Lac: a carbon star with unusual light curve
- Author
-
Alksnis A., Larionov V. M., and Larionova L. V.
- Subjects
Astronomy ,QB1-991 - Published
- 1997
- Full Text
- View/download PDF
228. Color variations of the blazar 3C 454.3 in 2004–2006
- Author
-
Hagen-Thorn, V. A., Efimova, N. V., Larionov, V. M., Raiteri, C. M., Villata, M., Arkharov, A. A., Hagen-Thorn, E. I., Gomez, C. A., Jorstad, S. G., Larionova, L. V., Takalo, L. O., and Sillanpää, A.
- Published
- 2009
- Full Text
- View/download PDF
229. A fast, very-high-energy gamma-ray flare from BL Lacertae during a period of multi-wavelength activity in June 2015
- Author
-
MAGIC Collaboration, Acciari, V. A., Ansoldi, S., ANTONELLI, Lucio Angelo, Arbet Engels, A., Baack, D., Babić, A., Banerjee, B., Bangale, P., Barres de Almeida, U., Barrio, J. A., Becerra González, J., Bednarek, W., Bernardini, E., Berti, A., Besenrieder, J., Bhattacharyya, W., BIGONGIARI, Ciro, Biland, A., Blanch, O., Bonnoli, G., Carosi, R., Ceribella, G., Cikota, S., Colak, S. M., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., COVINO, Stefano, D'Elia, V., da Vela, P., Dazzi, F., de Angelis, A., de Lotto, B., Delfino, M., Delgado, J., di Pierro, F., Do Souto Espiñera, E., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Elsaesser, D., Fallah Ramazani, V., Fattorini, A., Fernández-Barral, A., Ferrara, G., Fidalgo, D., Foffano, L., Fonseca, M. V., Font, L., Fruck, C., Galindo, D., GALLOZZI, Stefano, García López, R. J., Garczarczyk, M., Gaug, M., Giammaria, P., Godinović, N., Guberman, D., Hadasch, D., Hahn, A., Hassan, T., Herrera, J., Hoang, J., Hrupec, D., Inoue, S., Ishio, K., Iwamura, Y., Kubo, H., Kushida, J., Kuveždić, D., LAMASTRA, Alessandra, Lelas, D., LEONE, FRANCESCO, Lindfors, E., LOMBARDI, Saverio, Longo, F., López, M., López-Oramas, A., Maggio, C., Majumdar, P., Makariev, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Masuda, S., Mazin, D., Minev, M., Miranda, J. M., Mirzoyan, R., Molina, E., Moralejo, A., Moreno, V., Moretti, E., Munar-Adrover, P., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nigro, C., Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nogués, L., Nöthe, M., PAIANO, Simona, Palacio, J., Paneque, D., Paoletti, R., Paredes, J. M., Pedaletti, G., Peñil, P., Peresano, M., PERSIC, Massimo, Prada Moroni, P. G., PRANDINI, ELISA, Puljak, I., Garcia, J. R., Rhode, W., Ribó, M., Rico, J., Righi, Chiara, Rugliancich, A., Saha, L., Saito, T., Satalecka, K., Schweizer, T., Sitarek, J., Šnidarić, I., Sobczynska, D., Somero, A., STAMERRA, Antonio, Strzys, M., Surić, T., TAVECCHIO, Fabrizio, Temnikov, P., Terzić, T., Teshima, M., Torres-Albà, N., Tsujimoto, S., van Scherpenberg, J., Vanzo, G., Vazquez Acosta, M., Vovk, I., Will, M., Zarić, D., D'AMMANDO, FILIPPO, Hada, K., Jorstad, S., Marscher, A. P., Mobeen, M. Z., Hovatta, T., Larionov, V. M., Borman, G. A., Grishina, T. S., Kopatskaya, E. N., Morozova, D. A., Nikiforova, A. A., Lähteenmäki, A., Tornikoski, M., Agudo, I., ITA, Acciari, V. A., Ansoldi, S., Antonelli, L. A., Arbet Engels, A., Baack, D., Babic, A., Banerjee, B., Bangale, P., Barres De Almeida, U., Barrio, J. A., Becerra Gonzalez, J., Bednarek, W., Bernardini, E., Berti, A., Besenrieder, J., Bhattacharyya, W., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Carosi, R., Ceribella, G., Cikota, S., Colak, S. M., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., D'Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Delfino, M., Delgado, J., Di Pierro, F., Do Souto Espinera, E., Dominguez, A., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Elsaesser, D., Fallah Ramazani, V., Fattorini, A., Fernandez-Barral, A., Ferrara, G., Fidalgo, D., Foffano, L., Fonseca, M. V., Font, L., Fruck, C., Galindo, D., Gallozzi, S., Garcia Lopez, R. J., Garczarczyk, M., Gaug, M., Giammaria, P., Godinovic, N., Guberman, D., Hadasch, D., Hahn, A., Hassan, T., Herrera, J., Hoang, J., Hrupec, D., Inoue, S., Ishio, K., Iwamura, Y., Kubo, H., Kushida, J., Kuvezdic, D., Lamastra, A., Lelas, D., Leone, F., Lindfors, E., Lombardi, S., Longo, F., Lopez, M., Lopez-Oramas, A., Maggio, C., Majumdar, P., Makariev, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martinez, M., Masuda, S., Mazin, D., Minev, M., Miranda, J. M., Mirzoyan, R., Molina, E., Moralejo, A., Moreno, V., Moretti, E., Munar-Adrover, P., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nigro, C., Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nogues, L., Nothe, M., Paiano, S., Palacio, J., Paneque, D., Paoletti, R., Paredes, J. M., Pedaletti, G., Penil, P., Peresano, M., Persic, M., Prada Moroni, P. G., Prandini, E., Puljak, I., Garcia, J. R., Rhode, W., Ribo, M., Rico, J., Righi, C., Rugliancich, A., Saha, L., Saito, T., Satalecka, K., Schweizer, T., Sitarek, J., Snidaric, I., Sobczynska, D., Somero, A., Stamerra, A., Strzys, M., Suric, T., Tavecchio, F., Temnikov, P., Terzic, T., Teshima, M., Torres-Alba, N., Tsujimoto, S., Van Scherpenberg, J., Vanzo, G., Vazquez Acosta, M., Vovk, I., Will, M., Zaric, D., D'Ammando, F., Hada, K., Jorstad, S., Marscher, A. P., Mobeen, M. Z., Hovatta, T., Larionov, V. M., Borman, G. A., Grishina, T. S., Kopatskaya, E. N., Morozova, D. A., Nikiforova, A. A., Lahteenmaki, A., Tornikoski, M., Agudo, I., Istituto Nazionale di Fisica Nucleare, Department of Atomic Energy (India), Japanese Government, Croatian Science Foundation, University of Rijeka, German Research Foundation, Polish Academy of Sciences, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Ministry of Science and Technology (South Korea), Junta de Andalucía, Russian Science Foundation, National Science Foundation (US), National Aeronautics and Space Administration (US), Istituto Nazionale di Astrofisica, Swiss National Science Foundation, Ministerio de Economía y Competitividad (España), Federal Ministry of Education and Research (Germany), Department of Electronics and Nanoengineering, Aalto-yliopisto, and Aalto University
- Subjects
galaxies [Gamma rays] ,Photon ,model [emission] ,VHE [gamma ray] ,Inverse ,Astrophysics ,4/3 ,BL Lacertae objects: individual: BL Lacertae ,01 natural sciences ,7. Clean energy ,rotation ,law.invention ,star ,law ,jet ,Gamma rays: galaxies ,010303 astronomy & astrophysics ,Physics ,astro-ph.HE ,radio wave ,model [interaction] ,photon ,Gamma ray ,Optical polarization ,tension ,3. Good health ,optical [polarization] ,Spectral energy distribution ,high [energy] ,Física nuclear ,Astrophysics - High Energy Astrophysical Phenomena ,Flare ,Active galactic nucleus ,Astrophysics::High Energy Astrophysical Phenomena ,Astrophysics::Cosmology and Extragalactic Astrophysics ,gamma rays: galaxies ,X-ray ,0103 physical sciences ,AGN ,individual: BL Lacertae [BL Lacertae objects] ,010308 nuclear & particles physics ,Astronomy and Astrophysics ,Light curve ,MAGIC ,flux ,Space and Planetary Science ,ddc:520 ,spectral - Abstract
The mechanisms producing fast variability of the γ-ray emission in active galactic nuclei (AGNs) are under debate. The MAGIC telescopes detected a fast, very-high-energy (VHE, E > 100 GeV) γ-ray flare from BL Lacertae on 2015 June 15. The flare had a maximum flux of (1.5 ± 0.3) × 10-10 photons cm-2 s-1 and halving time of 26 ± 8 min. The MAGIC observations were triggered by a high state in the optical and high-energy (HE, E > 100 MeV) γ-ray bands. In this paper we present the MAGIC VHE γ-ray data together with multi-wavelength data from radio, optical, X-rays, and HE γ rays from 2015 May 1 to July 31. Well-sampled multi-wavelength data allow us to study the variability in detail and compare it to the other epochs when fast, VHE γ-ray flares have been detected from this source. Interestingly, we find that the behaviour in radio, optical, X-rays, and HE γ-rays is very similar to two other observed VHE γ-ray flares. In particular, also during this flare there was an indication of rotation of the optical polarization angle and of activity at the 43 GHz core. These repeating patterns indicate a connection between the three events. We also test modelling of the spectral energy distribution based on constraints from the light curves and VLBA observations, with two different geometrical setups of two-zone inverse Compton models. In addition we model the γ-ray data with the star-jet interaction model. We find that all of the tested emission models are compatible with the fast VHE γ-ray flare, but all have some tension with the multi-wavelength observations. © ESO 2019., The financial support of the German BMBF and MPG, the Italian INFN and INAF, the Swiss National Fund SNF, the ERDF under the Spanish MINECO (FPA2015-69818-P, FPA2012-36668, FPA 2015-68378-P, FPA2015-69210-C6-2-R, FPA2015-69210-C6-4-R, FPA201569210-C6-6-R, AYA2015-71042-P, AYA2016-76012-C3-1-P, ESP2015-71662C2-2-P, FPA201790566REDC), the Indian Department of Atomic Energy and the Japanese JSPS and MEXT is gratefully acknowledged. This work was also supported by the Spanish Centro de Excelencia >Severo Ochoa> SEV-2016-0588 and SEV-2015-0548, and Unidad de Excelencia >Maria de Maeztu> MDM-20140369, by the Croatian Science Foundation (HrZZ) Project IP-2016-06-9782 and the University of Rijeka Project 13.12.1.3.02, by the DFG Collaborative Research Centers SFB823/C4 and SFB876/C3, the Polish National Research Centre grant UMO-2016/22/M/ST9/00382 and by the Brazilian MCTIC, CNPq and FAPERJ. The work of the author M. Vazquez Acosta is financed with grant RYC-2013-14660 of MINECO. F. D'Ammando is grateful for support from the National Research Council of Science and Technology, Korea (EU16-001). The Fermi-LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat a l'Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucleaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d'Etudes Spatiales in France. This work performed in part under DOE Contract DE-AC02-76SF00515. Based on observations made with the Nordic Optical Telescope, operated by the Nordic Optical Telescope Scientific Association at the Observatorio del Roque de los Muchachos, La Palma, Spain, of the Instituto de Astrofisica de Canarias., Acquisition and reduction of the MAPCAT data was supported in part by MINECO through grants AYA201014844, AYA2013-40825-P, and AYA2016-80889-P, and by the Regional Government of Andalucia through grant P09-FQM-4784. The MAPCAT observations were carried out at the German-Spanish Calar Alto Observatory, which is jointly operated by the Max-Plank-Institut fur Astronomie and the Instituto de Astrofisica de Andalucia-CSIC. The St. Petersburg University team acknowledges support from Russian Science Foundation grant 17-12-01029. This publication makes use of data obtained at the Metsahovi Radio Observatory, operated by Aalto University, Finland. This study makes use of 43-GHz VLBA data from the VLBA-BU Blazar Monitoring Program (VLBA-BUBLAZAR; http://www.bu.edu/blazars/VLBAproject.html), funded by NASA through the Fermi Guest Investigator Program. The VLBA is an instrument of the National Radio Astronomy Observatory. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated by Associated Universities, Inc. The BU group acknowledges support from NASA Fermi GI program grant 80NSSC17K0694 and US National Science Foundation grant AST-1615796. The OVRO 40-m monitoring program is supported in part by NASA grants NNX08AW31G, NNX11A043G and NNX14AQ89G, and NSF grants AST-0808050 and AST-1109911.
- Published
- 2019
230. Theoretical analysis of the alloying system and design of new nickel-base superalloys
- Author
-
Logunov, A. V., Razumovskii, I. M., Stroganov, G. B., Ruban, A. V., Razumovskii, V. I., Larionov, V. N., Ospennikova, O. G., and Poklad, V. A.
- Published
- 2008
- Full Text
- View/download PDF
231. A gas compressor based on a piston-type acoustic resonator
- Author
-
Ermakov, R. A., Galiullin, R. G., Larionov, V. M., and Nikolaev, A. N.
- Published
- 2008
- Full Text
- View/download PDF
232. First experience of off-label use GLE/PIB+SOF in treating a patient with relapse of RNA HCV 1b viremia and RAS R117H in the NS3 region after NS3/4A PI + NS5AI + NS5BI failure of 3D-therapy PTV/R/OBV+DSV in Russia (case report)
- Author
-
Sulima, D. L., primary, Yakovlev, A. A., additional, Koryagin, V. N., additional, Larionov, V. A., additional, Gorchakova, O. V., additional, and Alekseeva, E. A., additional
- Published
- 2021
- Full Text
- View/download PDF
233. Purification of circular YACs from yeast cells for DNA sequencing
- Author
-
Leem, S.-H., Yoon, Y.-H., Kim, S.I., and Larionov, V.
- Subjects
Nucleotide sequence -- Physiological aspects ,Nucleotide sequence -- Research ,Nucleotide sequencing -- Methods ,Nucleotide sequencing -- Health aspects ,Nucleotide sequencing -- Research ,Biological sciences - Abstract
Abstract: We describe a method for the purification of circular yeast artificial chromosome (YAC) DNA 120-150 kilobases (kb) in size that is of sufficient quantity and quality for restriction enzyme [...]
- Published
- 2008
234. Polarization of radiation from Supernova 2005cs and possible physical mechanisms of its generation
- Author
-
Gnedin, Yu. N., Larionov, V. M., Konstantinova, T. S., and Kopatskaya, E. N.
- Published
- 2007
- Full Text
- View/download PDF
235. A mathematical model of vibration combustion in a tube with sudden cross-section change
- Author
-
Iovleva, O. V. and Larionov, V. M.
- Published
- 2007
- Full Text
- View/download PDF
236. Methodological aspects of analysis of nonlinear effects in the course on general physics
- Author
-
Zelichenko, V. M. and Larionov, V. V.
- Published
- 2007
- Full Text
- View/download PDF
237. Changes in the shape of photodynamically damaged Tetrahymena pyriformis cells
- Author
-
Brailovskaya, I. V., Kudryavtseva, T. A., Larionov, V. N., Prikhod’ko, E. A., and Mokhova, E. N.
- Published
- 2007
- Full Text
- View/download PDF
238. H3K9me maintenance on a Human Artificial Chromosome is required for 3 segregation but not centromere epigenetic memory
- Author
-
Martins, N. M. C., Cisneros-Soberanis, F., Pesenti, E., Kochanova, N. Y., Shang, W. H., Hori, T., Nagase, T., Kimura, Hiroshi, Larionov, V., Masumoto, H., Fukagawa, T., and Earnshaw, W. C.
- Subjects
Jumonji Domain-Containing Histone Demethylases ,Mitosis ,Human artificial chromosome ,Epigenetic engineering ,Centromere ,Epigenesis, Genetic ,Histones ,0302 clinical medicine ,Chromosome Segregation ,Heterochromatin ,Kinetochores ,0303 health sciences ,Kinetochore ,Polycomb ,Cell biology ,Chromatin ,kinetochore ,centromere ,CENP-A ,Research Article ,human artificial chromosome ,Biology ,Chromosomes, Artificial, Human ,03 medical and health sciences ,Humans ,Epigenetics ,030304 developmental biology ,mitosis ,heterochromatin ,Cell Biology ,epigenetic engineering ,Cenp-a ,biology.protein ,Demethylase ,polycomb ,Centromere Protein A ,030217 neurology & neurosurgery - Abstract
Most eukaryotic centromeres are located within heterochromatic regions. Paradoxically, heterochromatin can also antagonize de novo centromere formation, and some centromeres lack it altogether. In order to investigate the importance of heterochromatin at centromeres, we used epigenetic engineering of a synthetic alphoidtetO human artificial chromosome (HAC), to which chimeric proteins can be targeted. By tethering the JMJD2D demethylase (also known as KDM4D), we removed heterochromatin mark H3K9me3 (histone 3 lysine 9 trimethylation) specifically from the HAC centromere. This caused no short-term defects, but long-term tethering reduced HAC centromere protein levels and triggered HAC mis-segregation. However, centromeric CENP-A was maintained at a reduced level. Furthermore, HAC centromere function was compatible with an alternative low-H3K9me3, high-H3K27me3 chromatin signature, as long as residual levels of H3K9me3 remained. When JMJD2D was released from the HAC, H3K9me3 levels recovered over several days back to initial levels along with CENP-A and CENP-C centromere levels, and mitotic segregation fidelity. Our results suggest that a minimal level of heterochromatin is required to stabilize mitotic centromere function but not for maintaining centromere epigenetic memory, and that a homeostatic pathway maintains heterochromatin at centromeres. This article has an associated First Person interview with the first authors of the paper., Summary: Pericentric heterochromatin is dispensable for centromere epigenetic memory, but is required to stabilize centromere protein levels and accurate mitotic segregation. Pericentric heterochromatin levels can also recover after severe depletion.
- Published
- 2020
239. Actions of nbc reconnaissance units during search for small sites of radioactive contamination
- Author
-
Shmatov, Y. M., Martynіuk, I. M., Stadnichuk, О. M., Nikonets, I. I., Homyak, K. M., Larionov, V. V., and Matveiev, G. A.
- Subjects
NBC reconnaissance ,radioactive contamination ,methods of NC reconnaissance ,РХБ розвідка ,радіоактивне зараження ,способи РХ розвідки - Abstract
The optimal ways of searching for small sites of radioactive contamination, so-called "dead" zones, which are formed in case of destruction of dangerous objects that use, process, store and transport radioactive agents during conducting reconnaissance by the NBC units, are analyzed. The following research methods have been applied: bibliographic, analytical, systematic and informational approach. The following ways of searching (reconnaissance) of contaminated sites of the area are considered: the zigzag locate technique, the boustrophedon technique, the classical and rectangular spiral technique and the star survey technique. The length of the route was determined and the optimal parameters for their carrying out under certain conditions were established. The zigzag method (29-52%) is found to be the most effective, while the star survey technique is fast but ineffective. The probability of finding contaminated sites based on the height of the location of the detection unit and the energy of γ-quanta of radioisotopes, which are formed during the destruction of a nuclear reactor, disruption of nuclear and thermonuclear ammunition, is calculated. Increasing the probability of finding depends on the distance between the routes, their length, as well as the specifications of the radiation reconnaissance devices. Removal of the detection unit outside the reconnaissance vehicle increases the search efficiency, which depends on the specifications of the detection units of radiation reconnaissance devices. It is shown that the use of aerial reconnaissance equipment significantly increases the survey area and the efficiency of detecting a radiation situation by productivity, since the detection unit is located at a significantly higher altitude than 3 m. Requirements for technical specifications of unmanned aerial vehicles of radiation reconnaissance are formulated. It is determined that in order to fully accomplish the task of radiation reconnaissance, it is necessary to use the means of aerial and ground radiation reconnaissance in a complex way, complementing one tool with another., Проведено аналіз оптимальних шляхів пошуку невеликих ділянок радіоактивного зараження, так званих «мертвих» зон, які утворюються у випадку руйнування небезпечних об’єктів, що використовують, переробляють, зберігають і транспортують радіоактивні речовини під час ведення радіаційної розвідки підрозділами РХБ розвідки. Застосовано наступні методи наукового дослідження: бібліографічний, аналітичний, системного та інформаційного підходу. Розглянуто наступні способи пошуку (розвідки) заражених радіоактивними речовинами ділянок місцевості: «зигзаг», «паралельне галсирування», класична та прямокутна «спіраль» і «зірка». Визначено протяжність маршруту та встановлено оптимальні параметри їх проведення за визначених умов. Встановлено, що найефективнішим є спосіб «зигзаг» (29-52%), тоді як за розрахунками спосіб «зірка» є швидким, але малоефективним. Розраховано імовірність знаходження заражених ділянок місцевості залежно від висоти розміщення блока детектування та енергії γ-квантів радіоізотопів, які утворюються при руйнуванні ядерного реактора, підриві ядерного та термоядерного боєприпасів. Підвищення імовірності знаходження залежить від відстані між маршрутами, їх протяжності, а також технічних можливостей приладів радіаційної розвідки. Винесення блока детектування за межі розвідувальної машини збільшує ефективність пошуку, яка залежить від технічних можливостей блоків детектування приладів радіаційної розвідки. Показано, що використання засобів повітряної розвідки значно збільшує площу обстеження та підвищує оперативність виявлення радіаційної обстановки за продуктивністю, оскільки блок детектування розміщується на суттєво більшій висоті, ніж 3 м. Однак заражені ділянки позначені на місцевості знаками огородження не будуть. Сформульовано вимоги до технічних характеристик безпілотних літальних апаратів радіаційної розвідки. Визначено, що для повного виконання завдання радіаційної розвідки необхідно використовувати засоби повітряної і наземної радіаційної розвідки комплексно, доповнюючи однин засіб іншим.
- Published
- 2020
240. Multi-Wavelength Variability of BL Lacertae Measured with High Time Resolution
- Author
-
Nikiforova, A. A., Vasilyev, A. A., Gupta, A. C., Tsai, A. L., Marscher, A. P., Sadun, A., Strigachev, A., Zhovtan, A. V., Valcheva, A., Raiteri, C. M., Morozova, D. A., Carosati, D., Hiriart, D., Dougherty, D. J., Mirzaqulov, D. O., Benitez, E., Larionova, E. G., Kopatskaya, E. N., Evgeni Ovcharov, Semkov, E., Zaharieva, E., Borman, G. A., Damljanovic, G., Kimeridze, G. N., Baida, G. V., Hsiao, H. Y., Troitsky, I. S., Acosta-Pulido, J. A., Slater, J. J., Williamson, K. E., Smith, K. L., Matsumoto, K., Nikolashvili, M. G., Hart, M., Carnerero, M. I., Joner, M., Minev, M., Stojanovic, M., Villata, M., Rizzi, N., Kurtanidze, O. M., Vince, O., Bachev, R., Matsumura, R., Ehgamberdiev, S. A., Jorstad, S. G., Ibryamov, S., Kurtanidze, S. O., Savchenko, S. S., Balonek, T. J., Grishina, T. S., Bozhilov, V., Dhiman, V., Larionov, V. M., Chen, W. P., Troitskaya, Yu V., and Weaver, Zachary R.
- Subjects
High Energy Astrophysical Phenomena (astro-ph.HE) ,Astrophysics::High Energy Astrophysical Phenomena ,Astrophysics of Galaxies (astro-ph.GA) ,FOS: Physical sciences ,Astrophysics::Earth and Planetary Astrophysics ,Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Astrophysics of Galaxies - Abstract
In an effort to locate the sites of emission at different frequencies and physical processes causing variability in blazar jets, we have obtained high time-resolution observations of BL Lacertae over a wide wavelength range: with the \emph{Transiting Exoplanet Survey Satellite} (TESS) at 6,000-10,000 \AA\ with 2-minute cadence; with the Neil Gehrels \emph{Swift} satellite at optical, UV, and X-ray bands; with the Nuclear Spectroscopic Telescope Array at hard X-ray bands; with the \emph{Fermi} Large Area Telescope at $\gamma$-ray energies; and with the Whole Earth Blazar Telescope for measurement of the optical flux density and polarization. All light curves are correlated, with similar structure on timescales from hours to days. The shortest timescale of variability at optical frequencies observed with TESS is $\sim 0.5$ hr. The most common timescale is $13\pm1$~hr, comparable with the minimum timescale of X-ray variability, 14.5 hr. The multi-wavelength variability properties cannot be explained by a change solely in the Doppler factor of the emitting plasma. The polarization behavior implies that there are both ordered and turbulent components to the magnetic field in the jet. Correlation analysis indicates that the X-ray variations lag behind the $\gamma$-ray and optical light curves by up to $\sim 0.4$ days. The timescales of variability, cross-frequency lags, and polarization properties can be explained by turbulent plasma that is energized by a shock in the jet and subsequently loses energy to synchrotron and inverse Compton radiation in a magnetic field of strength $\sim3$ G, Comment: 33 pages, 25 figures, 14 tables. Accepted to ApJ
- Published
- 2020
- Full Text
- View/download PDF
241. The Great Markarian 421 flare of 2010 February:multiwavelength variability and correlation studies
- Author
-
Abeysekara, A. U. (A. U.), Benbow, W. (W.), Bird, R. (R.), Brill, A. (A.), Brose, R. (R.), Buchovecky, M. (M.), Buckley, J. H. (J. H.), Christiansen, J. L. (J. L.), Chromey, A. J. (A. J.), Daniel, M. K. (M. K.), Dumm, J. (J.), Falcone, A. (A.), Feng, Q. (Q.), Finley, J. P. (J. P.), Fortson, L. (L.), Furniss, A. (A.), Galante, N. (N.), Gent, A. (A.), Gillanders, G. H. (G. H.), Giuri, C. (C.), Gueta, O. (O.), Hassan, T. (T.), Hervet, O. (O.), Holder, J. (J.), Hughes, G. (G.), Humensky, T. B. (T. B.), Johnson, C. A. (C. A.), Kaaret, P. (P.), Kar, P. (P.), Kelley-Hoskins, N. (N.), Kertzman, M. (M.), Kieda, D. (D.), Krause, M. (M.), Krennrich, F. (F.), Kumar, S. (S.), Lang, M. J. (M. J.), Moriarty, P. (P.), Mukherjee, R. (R.), Nelson, T. (T.), Nieto, D. (D.), Nievas-Rosillo, M. (M.), O'Brien, S. (S.), Ong, R. A. (R. A.), Otte, A. N. (A. N.), Park, N. (N.), Petrashyk, A. (A.), Pichel, A. (A.), Pohl, M. (M.), Prado, R. R. (R. R.), Pueschel, E. (E.), Quinn, J. (J.), Ragan, K. (K.), Reynolds, P. T. (P. T.), Richards, G. T. (G. T.), Roache, E. (E.), Rovero, A. C. (A. C.), Rulten, C. (C.), Sadeh, I. (I), Santander, M. (M.), Sembroski, G. H. (G. H.), Shahinyan, K. (K.), Stevenson, B. (B.), Sushch, I. (I), Tyler, J. (J.), Vassiliev, V. V. (V. V.), Wakely, S. P. (S. P.), Weinstein, A. (A.), Wells, R. M. (R. M.), Wilcox, P. (P.), Wilhelm, A. (A.), Williams, D. A. (D. A.), Zitzer, B. (B.), Acciari, V. A. (V. A.), Ansoldi, S. (S.), Antonelli, L. A. (L. A.), Engels, A. A. (A. Arbet), Baack, D. (D.), Babic, A. (A.), Banerjee, B. (B.), Barres de Almeida, U. (U.), Barrio, J. A. (J. A.), Becerra Gonzalez, J. (J.), Bednarek, W. (W.), Bellizzi, L. (L.), Bernardini, E. (E.), Berti, A. (A.), Besenrieder, J. (J.), Bhattacharyya, W. (W.), Bigongiari, C. (C.), Biland, A. (A.), Blanch, O. (O.), Bonnoli, G. (G.), Busetto, G. (G.), Carosi, R. (R.), Ceribella, G. (G.), Chai, Y. (Y.), Cikota, S. (S.), Colak, S. M. (S. M.), Colin, U. (U.), Colombo, E. (E.), Contreras, J. L. (J. L.), Cortina, J. (J.), Covino, S. (S.), D'Elia, V. (V), Vela, P. (P.), Dazzi, F. (F.), De Angelis, A. (A.), De Lotto, B. (B.), Delfino, M. (M.), Delgado, J. (J.), Di Pierro, F. (F.), Souto Espinera, E. (E.), Prester, D. D. (D. Dominis), Dorner, D. (D.), Doro, M. (M.), Einecke, S. (S.), Elsaesser, D. (D.), Ramazani, V. F. (V. Fallah), Fattorini, A. (A.), Fernandez-Barral, A. (A.), Ferrara, G. (G.), Fidalgo, D. (D.), Foffano, L. (L.), Fonseca, M. V. (M., V), Font, L. (L.), Fruck, C. (C.), Galindo, D. (D.), Gallozzi, S. (S.), Garcia Lopez, R. J. (R. J.), Garczarczyk, M. (M.), Gasparyan, S. (S.), Gaug, M. (M.), Godinovic, N. (N.), Green, D. (D.), Guberman, D. (D.), Hadasch, D. (D.), Hahn, A. (A.), Herrera, J. (J.), Hoang, J. (J.), Hrupec, D. (D.), Inoue, S. (S.), Ishio, K. (K.), Iwamura, Y. (Y.), Kubo, H. (H.), Kushida, J. (J.), Lamastra, A. (A.), Lelas, D. (D.), Leone, F. (F.), Lindfors, E. (E.), Lombardi, S. (S.), Longo, F. (F.), Lopez, M. (M.), Lopez-Coto, R. (R.), Lopez-Oramas, A. (A.), Machado de Oliveira Fraga, B. (B.), Maggio, C. (C.), Majumdar, P. (P.), Makariev, M. (M.), Mallamaci, M. (M.), Maneva, G. (G.), Manganaro, M. (M.), Mannheim, K. (K.), Maraschi, L. (L.), Mariotti, M. (M.), Martinez, M. (M.), Masuda, S. (S.), Mazin, D. (D.), Miceli, D. (D.), Minev, M. (M.), Miranda, J. M. (J. M.), Mirzoyan, R. (R.), Molina, E. (E.), Moralejo, A. (A.), Morcuende, D. (D.), Moreno, V. (V), Moretti, E. (E.), Munar-Adrover, P. (P.), Neustroev, V. (V), Niedzwiecki, A. (A.), Nievas Rosillo, M. (M.), Nigro, C. (C.), Nilsson, K. (K.), Ninci, D. (D.), Nishijima, K. (K.), Noda, K. (K.), Nogues, L. (L.), Noethe, M. (M.), Paiano, S. (S.), Palacio, J. (J.), Palatiello, M. (M.), Paneque, D. (D.), Paoletti, R. (R.), Paredes, J. M. (J. M.), Penil, P. (P.), Peresano, M. (M.), Persic, M. (M.), Moroni, P. G. (P. G. Prada), Prandini, E. (E.), Puljak, I. (I), Rhode, W. (W.), Ribo, M. (M.), Rico, J. (J.), Righi, C. (C.), Rugliancich, A. (A.), Saha, L. (L.), Sahakyan, N. (N.), Saito, T. (T.), Satalecka, K. (K.), Schweizer, T. (T.), Sitarek, J. (J.), Snidaric, I. (I), Sobczynska, D. (D.), Somero, A. (A.), Stamerra, A. (A.), Strom, D. (D.), Strzys, M. (M.), Sun, S. (S.), Suric, T. (T.), Tavecchio, F. (F.), Temnikov, P. (P.), Terzic, T. (T.), Teshima, M. (M.), Torres-Alba, N. (N.), Tsujimoto, S. (S.), van Scherpenberg, J. (J.), Vanzo, G. (G.), Vazquez Acosta, M. (M.), Vovk, I. (I), Will, M. (M.), Zaric, D. (D.), Aller, H. D. (H. D.), Aller, M. F. (M. F.), Carini, M. T. (M. T.), Horan, D. (D.), Jordan, B. (B.), Jorstad, S. G. (S. G.), Kurtanidze, O. M. (O. M.), Kurtanidze, S. O. (S. O.), Lahteenmaki, A. (A.), Larionov, V. M. (V. M.), Larionova, E. G. (E. G.), Madejski, G. (G.), Marscher, A. P. (A. P.), Max-Moerbeck, W. (W.), Moody, J. W. (J. Ward), Morozova, D. A. (D. A.), Nikolashvili, M. G. (M. G.), Raiteri, C. M. (C. M.), Readhead, A. C. (A. C. S.), Richards, J. L. (J. L.), Sadun, A. C. (A. C.), Sakamoto, T. (T.), Sigua, L. A. (L. A.), Smith, P. S. (P. S.), Talvikki, H. (H.), Tammi, J. (J.), Tornikoski, M. (M.), Troitsky, I. S. (I. S.), and Villata, M. (M.)
- Subjects
Gamma-ray astronomy ,Astrophysics::High Energy Astrophysical Phenomena ,Time domain astronomy ,BL Lacertae objects ,Markarian galaxies ,Relativistic jets ,High energy astrophysics ,Blazars - Abstract
We report on variability and correlation studies using multiwavelength observations of the blazar Mrk 421 during the month of 2010 February, when an extraordinary flare reaching a level of ~27 Crab Units above 1 TeV was measured in very high energy (VHE) γ-rays with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) observatory. This is the highest flux state for Mrk 421 ever observed in VHE γ-rays. Data are analyzed from a coordinated campaign across multiple instruments, including VHE γ-ray (VERITAS, Major Atmospheric Gamma-ray Imaging Cherenkov), high-energy γ-ray (Fermi-LAT), X-ray (Swift, Rossi X-ray Timing Experiment, MAXI), optical (including the GASP-WEBT collaboration and polarization data), and radio (Metsähovi, Owens Valley Radio Observatory, University of Michigan Radio Astronomy Observatory). Light curves are produced spanning multiple days before and after the peak of the VHE flare, including over several flare “decline“ epochs. The main flare statistics allow 2 minute time bins to be constructed in both the VHE and optical bands enabling a cross-correlation analysis that shows evidence for an optical lag of ~25–55 minutes, the first time-lagged correlation between these bands reported on such short timescales. Limits on the Doppler factor (δ ≳ 33) and the size of the emission region (δ⁻¹ RB ≲ × 10¹³ cm) are obtained from the fast variability observed by VERITAS during the main flare. Analysis of 10 minute binned VHE and X-ray data over the decline epochs shows an extraordinary range of behavior in the flux–flux relationship, from linear to quadratic to lack of correlation to anticorrelation. Taken together, these detailed observations of an unprecedented flare seen in Mrk 421 are difficult to explain with the classic single-zone synchrotron self-Compton model.
- Published
- 2020
242. CENP-B creates alternative epigenetic chromatin states permissive for CENP-A or heterochromatin assembly
- Author
-
Otake, K., Ohzeki, J. I., Shono, N., Kugou, K., Okazaki, K., Nagase, T., Yamakawa, H., Kouprina, N., Larionov, V., Kimura, Hiroshi, Earnshaw, W. C., and Masumoto, H.
- Subjects
ASH1L ,Alternative epigenetic states ,Chromosomal Proteins, Non-Histone ,Satellite DNA ,Heterochromatin ,Centromere ,macromolecular substances ,Biology ,Autoantigens ,Hp1 ,Epigenesis, Genetic ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Nucleosome ,Heterochromatin assembly ,Ash1l ,030304 developmental biology ,ASH1l ,0303 health sciences ,HP1 ,alternative epigenetic states ,Acidic-rich domain ,Cell Biology ,Chromatin ,Cell biology ,Histone ,centromere ,Chromobox Protein Homolog 5 ,Cenp-b ,biology.protein ,Heterochromatin protein 1 ,Centromere Protein A ,CENP-B ,030217 neurology & neurosurgery ,acidic rich domain ,Research Article - Abstract
CENP-B binds to CENP-B boxes on centromeric satellite DNAs (known as alphoid DNA in humans). CENP-B maintains kinetochore function through interactions with CENP-A nucleosomes and CENP-C. CENP-B binding to transfected alphoid DNA can induce de novo CENP-A assembly, functional centromere and kinetochore formation, and subsequent human artificial chromosome (HAC) formation. Furthermore, CENP-B also facilitates H3K9 (histone H3 lysine 9) trimethylation on alphoid DNA, mediated by Suv39h1, at ectopic alphoid DNA integration sites. Excessive heterochromatin invasion into centromere chromatin suppresses CENP-A assembly. It is unclear how CENP-B controls such different chromatin states. Here, we show that the CENP-B acidic domain recruits histone chaperones and many chromatin modifiers, including the H3K36 methylase ASH1L, as well as the heterochromatin components Suv39h1 and HP1 (HP1α, β and γ, also known as CBX5, CBX1 and CBX3, respectively). ASH1L facilitates the formation of open chromatin competent for CENP-A assembly on alphoid DNA. These results indicate that CENP-B is a nexus for histone modifiers that alternatively promote or suppress CENP-A assembly by mutually exclusive mechanisms. Besides the DNA-binding domain, the CENP-B acidic domain also facilitates CENP-A assembly de novo on transfected alphoid DNA. CENP-B therefore balances CENP-A assembly and heterochromatin formation on satellite DNA., Summary: The acidic domain of CENP-B facilitates assembly of various proteins at centromeric satellite DNA, including HP1 and ASH1L. CENP-B controls centromere epigenetic status.
- Published
- 2020
243. Quasi-periodic behaviour in the optical and ��-ray light curves of blazars 3C 66A and B2 1633+38
- Author
-
Otero-Santos, J., Acosta-Pulido, J. A., Gonz��lez, J. Becerra, Raiteri, C. M., Larionov, V. M., Pe��il, P., Smith, P. S., Niebla, C. Ballester, Borman, G. A., Carnerero, M. I., Segura, N. Castro, Grishina, T. S., Kopatskaya, E. N., Larionova, E. G., Morozova, D. A., Nikiforova, A. A., Savchenko, S. S., Troitskaya, Yu. V., Troitsky, I. S., Vasilyev, A. A., and Villata, M.
- Subjects
High Energy Astrophysical Phenomena (astro-ph.HE) ,FOS: Physical sciences - Abstract
We report on quasi-periodic variability found in two blazars included in the Steward Observatory Blazar Monitoring data sample: the BL Lac object 3C 66A and the Flat Spectrum Radio Quasar B2 1633+38. We collect optical photometric and polarimetric data in V and R bands of these sources from different observatories: St. Petersburg University, Crimean Astrophysical Observatory, WEBT-GASP, Catalina Real-Time Transient Survey, Steward Observatory, STELLA Robotic Observatory and Katzman Automatic Imaging Telescope. In addition, an analysis of the $��$-ray light curves from $\textit{Fermi}$-LAT is included. Three methods are used to search for any periodic behaviour in the data: the Z-transform Discrete Correlation Function, the Lomb-Scargle periodogram and the Weighted Wavelet Z-transform. We find evidences of possible quasi-periodic variability in the optical photometric data of both sources with periods of $\sim$3 years for 3C 66A and $\sim$1.9 years for B2 1633+38, with significances between 3$��$ and 5$��$. Only B2 1633+38 shows evidence of this behaviour in the optical polarized data set at a confidence level of 2$��$-4$��$. This is the first reported evidence of quasi-periodic behaviour in the optical light curve of B2 1633+38. Also a hint of quasi-periodic behaviour is found in the $��$-ray light curve of B2 1633+38 with a confidence level $\geqslant$2$��$, while no periodicity is observed for 3C 66A in this energy range. We propose different jet emission models that could explain the quasi-periodic variability and the differences found between these two sources., Accepted for publication in MNRAS
- Published
- 2020
- Full Text
- View/download PDF
244. High efficiency (EQE=37.5%) infrared (850 nm) light-emitting diodes with Bragg and mirror reflectors
- Author
-
null Andreev V. M., null Shvarts M. Z., null Pokrovskii P. V., null Larionov V. R., null Nakhimovich M. V., null Malevskii D. A., null Salii R. A., null Mintairov S. A., null Kalyuzhnyy N. A., and null Malevskaya A. V.
- Abstract
Developed and investigated are IR (850 nm) light-emitting diodes based on AlGaAs/Ga(In)As heterostructures grown by the MOCVD technique with multiple quantum wells in the active region and with a double optical reflector consisted of a multilayer Al0.9Ga0.1As/Al0.1Ga0.9As Bragg heterostructure and an Ag mirror layer. Light-emitting diodes with the external quantum efficiency EQE=37.5% at current densities greater than >10 A/cm2 have been fabricated. Keywords: IR light-emitting diode, AlGaAs/GaAs heterostructure, Bragg reflector, InGaAs quantum wells.
- Published
- 2022
245. Photo-receiving device for conversion of energy and data transmitted via atmospheric laser channel
- Author
-
null Larionov V. R., null Malevskii D. A., and null Kognovitckii S. O.
- Abstract
A power-communicating photo-receiving device for an autonomous laser communication unit has been designed to receive energy from powerful laser radiation and convert it into electricity, as well as to simultaneously registration of information high-frequency optical signals. Keywords: wireless power transmission, laser beam, photo-receiving device, photovoltaic cell, high-speed photodiode.
- Published
- 2022
246. Spectropolarimetry and IR photometry of magnetic white dwarfs: Vacuum polarization or rydberg states in their magnetic fields?
- Author
-
Gnedin, Yu. N., Borisov, N. V., Larionov, V. M., Natsvlishvili, T. M., Piotrovich, M. Yu., and Arkharov, A. A.
- Published
- 2006
- Full Text
- View/download PDF
247. Optical and IR monitoring of the BL Lac object S5 0716+714 from 2001–2004
- Author
-
Hagen-Thorn, V. A., Larionov, V. M., Efimova, N. V., Hagen-Thorn, E. I., Arkharov, A. A., Di Paola, A., Dolci, M., Takalo, L. O., Sillanpää, A., and Ostorero, L.
- Published
- 2006
- Full Text
- View/download PDF
248. Actions of nbc reconnaissance units during search for small sites of radioactive contamination
- Author
-
Shmatov, Y. M.; Національна Академія сухопутних військ імені гетьмана Петра Сагайдачного, старший науковий співробітник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Martynіuk, I. M.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, начальник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Stadnichuk, О. M.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, науковий співробітник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Nikonets, I. I.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, молодший науковий співробітник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Homyak, K. M.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, старший викладач кафедри тактики підрозділів (бойового) оперативного забезпечення факультету підготовки спеціалістів бойового (оперативного) забезпечення, Larionov, V. V.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, доцент кафедри тактики підрозділів (бойового) оперативного забезпечення факультету підготовки спеціалістів бойового (оперативного) забезпечення, Matveiev, G. A.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, старший викладач кафедри тактики підрозділів (бойового) оперативного забезпечення факультету підготовки спеціалістів бойового (оперативного) забезпечення, Shmatov, Y. M.; Національна Академія сухопутних військ імені гетьмана Петра Сагайдачного, старший науковий співробітник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Martynіuk, I. M.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, начальник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Stadnichuk, О. M.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, науковий співробітник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Nikonets, I. I.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, молодший науковий співробітник НДЛ (аналізу і прогнозування надзвичайних ситуацій) факультету підготовки спеціалістів бойового (оперативного) забезпечення, Homyak, K. M.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, старший викладач кафедри тактики підрозділів (бойового) оперативного забезпечення факультету підготовки спеціалістів бойового (оперативного) забезпечення, Larionov, V. V.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, доцент кафедри тактики підрозділів (бойового) оперативного забезпечення факультету підготовки спеціалістів бойового (оперативного) забезпечення, and Matveiev, G. A.; Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Львів, старший викладач кафедри тактики підрозділів (бойового) оперативного забезпечення факультету підготовки спеціалістів бойового (оперативного) забезпечення
- Abstract
The optimal ways of searching for small sites of radioactive contamination, so-called "dead" zones, which are formed in case of destruction of dangerous objects that use, process, store and transport radioactive agents during conducting reconnaissance by the NBC units, are analyzed. The following research methods have been applied: bibliographic, analytical, systematic and informational approach. The following ways of searching (reconnaissance) of contaminated sites of the area are considered: the zigzag locate technique, the boustrophedon technique, the classical and rectangular spiral technique and the star survey technique. The length of the route was determined and the optimal parameters for their carrying out under certain conditions were established. The zigzag method (29-52%) is found to be the most effective, while the star survey technique is fast but ineffective. The probability of finding contaminated sites based on the height of the location of the detection unit and the energy of γ-quanta of radioisotopes, which are formed during the destruction of a nuclear reactor, disruption of nuclear and thermonuclear ammunition, is calculated. Increasing the probability of finding depends on the distance between the routes, their length, as well as the specifications of the radiation reconnaissance devices. Removal of the detection unit outside the reconnaissance vehicle increases the search efficiency, which depends on the specifications of the detection units of radiation reconnaissance devices. It is shown that the use of aerial reconnaissance equipment significantly increases the survey area and the efficiency of detecting a radiation situation by productivity, since the detection unit is located at a significantly higher altitude than 3 m. Requirements for technical specifications of unmanned aerial vehicles of radiation reconnaissance are formulated. It is determined that in order to fully accomplish the task of radiation reconnaissance, it is necessary to, Проведено аналіз оптимальних шляхів пошуку невеликих ділянок радіоактивного зараження, так званих «мертвих» зон, які утворюються у випадку руйнування небезпечних об’єктів, що використовують, переробляють, зберігають і транспортують радіоактивні речовини під час ведення радіаційної розвідки підрозділами РХБ розвідки. Застосовано наступні методи наукового дослідження: бібліографічний, аналітичний, системного та інформаційного підходу. Розглянуто наступні способи пошуку (розвідки) заражених радіоактивними речовинами ділянок місцевості: «зигзаг», «паралельне галсирування», класична та прямокутна «спіраль» і «зірка». Визначено протяжність маршруту та встановлено оптимальні параметри їх проведення за визначених умов. Встановлено, що найефективнішим є спосіб «зигзаг» (29-52%), тоді як за розрахунками спосіб «зірка» є швидким, але малоефективним. Розраховано імовірність знаходження заражених ділянок місцевості залежно від висоти розміщення блока детектування та енергії γ-квантів радіоізотопів, які утворюються при руйнуванні ядерного реактора, підриві ядерного та термоядерного боєприпасів. Підвищення імовірності знаходження залежить від відстані між маршрутами, їх протяжності, а також технічних можливостей приладів радіаційної розвідки. Винесення блока детектування за межі розвідувальної машини збільшує ефективність пошуку, яка залежить від технічних можливостей блоків детектування приладів радіаційної розвідки. Показано, що використання засобів повітряної розвідки значно збільшує площу обстеження та підвищує оперативність виявлення радіаційної обстановки за продуктивністю, оскільки блок детектування розміщується на суттєво більшій висоті, ніж 3 м. Однак заражені ділянки позначені на місцевості знаками огородження не будуть. Сформульовано вимоги до технічних характеристик безпілотних літальних апаратів радіаційної розвідки. Визначено, що для повного виконання завдання радіаційної розвідки необхідно використовувати засоби повітряної і наземної радіаційної розвідки комп
- Published
- 2020
249. Unraveling the complex behavior of Mrk 421 with simultaneous X-Ray and VHE observations during an extreme flaring activity in 2013 April
- Author
-
Acciari, V. A. (V. A.), Ansoldi, S. (S.), Antonelli, L. A. (L. A.), Engels, A. A. (A. Arbet), Baack, D. (D.), Babic, A. (A.), Banerjee, B. (B.), Barres de Almeida, U. (U.), Barrio, J. A. (J. A.), Becerra Gonzalez, J. (J.), Bednarek, W. (W.), Bellizzi, L. K. (L. K.), Bernardini, E. (E.), Berti, A. (A.), Besenrieder, J. (J.), Bhattacharyya, W. (W.), Bigongiari, C. (C.), Biland, A. (A.), Blanch, O. (O.), Bonnoli, G. (G.), Bosnjak, Z. (Z.), Busetto, G. (G.), Carosi, R. (R.), Ceribella, G. (G.), Cerruti, M. (M.), Chai, Y. (Y.), Chilingarian, A. (A.), Cikota, S. (S.), Colak, S. M. (S. M.), Colin, U. (U.), Colombo, E. (E.), Contreras, J. L. (J. L.), Cortina, J. (J.), Covino, S. (S.), D'Elia, V. (V), Da Vela, P. (P.), Dazzi, F. (F.), De Angelis, A. (A.), De Lotto, B. (B.), Del Puppo, F. (F.), Delfino, M. (M.), Delgado, J. (J.), Depaoli, D. (D.), Di Pierro, F. (F.), Di Venere, L. (L.), Do Souto Espineira, E. (E.), Prester, D. D. (D. Dominis), Donini, A. (A.), Dorner, D. (D.), Doro, M. (M.), Elsaesser, D. (D.), Ramazani, V. F. (V. Fallah), Fattorini, A. (A.), Ferrara, G. (G.), Foffano, L. (L.), Fonseca, M. V. (M., V), Font, L. (L.), Fruck, C. (C.), Fukami, S. (S.), Garcia Lopez, R. J. (R. J.), Garczarczyk, M. (M.), Gasparyan, S. (S.), Gaug, M. (M.), Giglietto, N. (N.), Giordano, F. (F.), Gliwny, P. (P.), Godinovic, N. (N.), Green, D. (D.), Hadasch, D. (D.), Hahn, A. (A.), Hassan, T. (T.), Herrera, J. (J.), Hoang, J. (J.), Hrupec, D. (D.), Huetten, M. (M.), Inada, T. (T.), Inoue, S. (S.), Ishio, K. (K.), Iwamura, Y. (Y.), Jouvin, L. (L.), Kajiwara, Y. (Y.), Kerszberg, D. (D.), Kobayashi, Y. (Y.), Kubo, H. (H.), Kushida, J. (J.), Lamastra, A. (A.), Lelas, D. (D.), Leone, F. (F.), Lindfors, E. (E.), Lombardi, S. (S.), Longo, F. (F.), Lopez, M. (M.), Lopez-Coto, R. (R.), Lopez-Oramas, A. (A.), Loporchio, S. (S.), Machado de Oliveira Fraga, B. (B.), Maggio, C. (C.), Majumdar, P. (P.), Makariev, M. (M.), Mallamaci, M. (M.), Maneva, G. (G.), Manganaro, M. (M.), Mannheim, K. (K.), Maraschi, L. (L.), Mariotti, M. (M.), Martinez, M. (M.), Mazin, D. (D.), Mender, S. (S.), Micanovic, S. (S.), Miceli, D. (D.), Miener, T. (T.), Minev, M. (M.), Miranda, J. M. (J. M.), Mirzoyan, R. (R.), Molina, E. (E.), Moralejo, A. (A.), Morcuende, D. (D.), Moreno, V. (V), Moretti, E. (E.), Munar-Adrover, P. (P.), Neustroev, V. (V), Nigro, C. (C.), Nilsson, K. (K.), Ninci, D. (D.), Nishijima, K. (K.), Noda, K. (K.), Nogues, L. (L.), Nozaki, S. (S.), Ohtani, Y. (Y.), Oka, T. (T.), Otero-Santos, J. (J.), Palatiello, M. (M.), Paneque, D. (D.), Paoletti, R. (R.), Paredes, J. M. (J. M.), Pavletic, L. (L.), Penil, P. (P.), Peresano, M. (M.), Persic, M. (M.), Moroni, P. G. (P. G. Prada), Prandini, E. (E.), Puljak, I. (I), Rhode, W. (W.), Ribo, M. (M.), Rico, J. (J.), Righi, C. (C.), Rugliancich, A. (A.), Saha, L. (L.), Sahakyan, N. (N.), Saito, T. (T.), Sakurai, S. (S.), Satalecka, K. (K.), Schleicher, B. (B.), Schmidt, K. (K.), Schweizer, T. (T.), Sitarek, J. (J.), Snidaric, I. (I), Sobczynska, D. (D.), Spolon, A. (A.), Stamerra, A. (A.), Strom, D. (D.), Strzys, M. (M.), Suda, Y. (Y.), Suric, T. (T.), Takahashi, M. (M.), Tavecchio, F. (F.), Temnikov, P. (P.), Terzic, T. (T.), Teshima, M. (M.), Torres-Alba, N. (N.), Tosti, L. (L.), van Scherpenberg, J. (J.), Vanzo, G. (G.), Vazquez Acosta, M. (M.), Ventura, S. (S.), Verguilov, V. (V.), Vigorito, C. F. (C. F.), Vitale, V. (V.), Vovk, I. (I), Will, M. (M.), Zaric, D. (D.), Petropoulou, M. (M.), Finke, J. (J.), D'Ammando, F. (F.), Balokovi, M. (M.), Madejskic, G. (G.), Mori, K. (K.), Puccetti, S. (Simonetta), Leto, C. (C.), Perri, M. (M.), Verrecchia, F. (F.), Villata, M. (M.), Raiteri, C. M. (C. M.), Agudo, I. (I), Bachev, R. (R.), Berdyugin, A. (A.), Blinov, D. A. (D. A.), Chanishvili, R. (R.), Chen, W. P. (W. P.), Chigladze, R. (R.), Damljanovic, G. (G.), Eswaraiah, C. (C.), Grishina, T. S. (T. S.), Ibryamov, S. (S.), Jordan, B. (B.), Jorstad, S. G. (S. G.), Joshi, M. (M.), Kopatskaya, E. N. (E. N.), Kurtanidze, O. M. (O. M.), Kurtanidze, S. O. (S. O.), Larionova, E. G. (E. G.), Larionova, L. V. (L., V), Larionov, V. M. (V. M.), Latev, G. (G.), Lin, H. C. (H. C.), Marscher, A. P. (A. P.), Mokrushina, A. A. (A. A.), Morozova, D. A. (D. A.), Nikolashvili, M. G. (M. G.), Semkov, E. (E.), Smith, P. S. (P. S.), Strigachev, A. (A.), Troitskaya, Y. V. (Yu, V), Troitsky, I. S. (I. S.), Vince, O. (O.), Barnes, J. (J.), Guver, T. (T.), Moody, J. W. (J. W.), Sadun, A. C. (A. C.), Hovatta, T. (T.), Richards, J. L. (J. L.), Max-Moerbeck, W. (W.), Readhead, A. C. (A. C. S.), Lahteenmaki, A. (A.), Tornikoski, M. (M.), Tammi, J. (J.), Ramakrishnan, V. (V), Reinthal, R. (R.), Acciari, V. A. (V. A.), Ansoldi, S. (S.), Antonelli, L. A. (L. A.), Engels, A. A. (A. Arbet), Baack, D. (D.), Babic, A. (A.), Banerjee, B. (B.), Barres de Almeida, U. (U.), Barrio, J. A. (J. A.), Becerra Gonzalez, J. (J.), Bednarek, W. (W.), Bellizzi, L. K. (L. K.), Bernardini, E. (E.), Berti, A. (A.), Besenrieder, J. (J.), Bhattacharyya, W. (W.), Bigongiari, C. (C.), Biland, A. (A.), Blanch, O. (O.), Bonnoli, G. (G.), Bosnjak, Z. (Z.), Busetto, G. (G.), Carosi, R. (R.), Ceribella, G. (G.), Cerruti, M. (M.), Chai, Y. (Y.), Chilingarian, A. (A.), Cikota, S. (S.), Colak, S. M. (S. M.), Colin, U. (U.), Colombo, E. (E.), Contreras, J. L. (J. L.), Cortina, J. (J.), Covino, S. (S.), D'Elia, V. (V), Da Vela, P. (P.), Dazzi, F. (F.), De Angelis, A. (A.), De Lotto, B. (B.), Del Puppo, F. (F.), Delfino, M. (M.), Delgado, J. (J.), Depaoli, D. (D.), Di Pierro, F. (F.), Di Venere, L. (L.), Do Souto Espineira, E. (E.), Prester, D. D. (D. Dominis), Donini, A. (A.), Dorner, D. (D.), Doro, M. (M.), Elsaesser, D. (D.), Ramazani, V. F. (V. Fallah), Fattorini, A. (A.), Ferrara, G. (G.), Foffano, L. (L.), Fonseca, M. V. (M., V), Font, L. (L.), Fruck, C. (C.), Fukami, S. (S.), Garcia Lopez, R. J. (R. J.), Garczarczyk, M. (M.), Gasparyan, S. (S.), Gaug, M. (M.), Giglietto, N. (N.), Giordano, F. (F.), Gliwny, P. (P.), Godinovic, N. (N.), Green, D. (D.), Hadasch, D. (D.), Hahn, A. (A.), Hassan, T. (T.), Herrera, J. (J.), Hoang, J. (J.), Hrupec, D. (D.), Huetten, M. (M.), Inada, T. (T.), Inoue, S. (S.), Ishio, K. (K.), Iwamura, Y. (Y.), Jouvin, L. (L.), Kajiwara, Y. (Y.), Kerszberg, D. (D.), Kobayashi, Y. (Y.), Kubo, H. (H.), Kushida, J. (J.), Lamastra, A. (A.), Lelas, D. (D.), Leone, F. (F.), Lindfors, E. (E.), Lombardi, S. (S.), Longo, F. (F.), Lopez, M. (M.), Lopez-Coto, R. (R.), Lopez-Oramas, A. (A.), Loporchio, S. (S.), Machado de Oliveira Fraga, B. (B.), Maggio, C. (C.), Majumdar, P. (P.), Makariev, M. (M.), Mallamaci, M. (M.), Maneva, G. (G.), Manganaro, M. (M.), Mannheim, K. (K.), Maraschi, L. (L.), Mariotti, M. (M.), Martinez, M. (M.), Mazin, D. (D.), Mender, S. (S.), Micanovic, S. (S.), Miceli, D. (D.), Miener, T. (T.), Minev, M. (M.), Miranda, J. M. (J. M.), Mirzoyan, R. (R.), Molina, E. (E.), Moralejo, A. (A.), Morcuende, D. (D.), Moreno, V. (V), Moretti, E. (E.), Munar-Adrover, P. (P.), Neustroev, V. (V), Nigro, C. (C.), Nilsson, K. (K.), Ninci, D. (D.), Nishijima, K. (K.), Noda, K. (K.), Nogues, L. (L.), Nozaki, S. (S.), Ohtani, Y. (Y.), Oka, T. (T.), Otero-Santos, J. (J.), Palatiello, M. (M.), Paneque, D. (D.), Paoletti, R. (R.), Paredes, J. M. (J. M.), Pavletic, L. (L.), Penil, P. (P.), Peresano, M. (M.), Persic, M. (M.), Moroni, P. G. (P. G. Prada), Prandini, E. (E.), Puljak, I. (I), Rhode, W. (W.), Ribo, M. (M.), Rico, J. (J.), Righi, C. (C.), Rugliancich, A. (A.), Saha, L. (L.), Sahakyan, N. (N.), Saito, T. (T.), Sakurai, S. (S.), Satalecka, K. (K.), Schleicher, B. (B.), Schmidt, K. (K.), Schweizer, T. (T.), Sitarek, J. (J.), Snidaric, I. (I), Sobczynska, D. (D.), Spolon, A. (A.), Stamerra, A. (A.), Strom, D. (D.), Strzys, M. (M.), Suda, Y. (Y.), Suric, T. (T.), Takahashi, M. (M.), Tavecchio, F. (F.), Temnikov, P. (P.), Terzic, T. (T.), Teshima, M. (M.), Torres-Alba, N. (N.), Tosti, L. (L.), van Scherpenberg, J. (J.), Vanzo, G. (G.), Vazquez Acosta, M. (M.), Ventura, S. (S.), Verguilov, V. (V.), Vigorito, C. F. (C. F.), Vitale, V. (V.), Vovk, I. (I), Will, M. (M.), Zaric, D. (D.), Petropoulou, M. (M.), Finke, J. (J.), D'Ammando, F. (F.), Balokovi, M. (M.), Madejskic, G. (G.), Mori, K. (K.), Puccetti, S. (Simonetta), Leto, C. (C.), Perri, M. (M.), Verrecchia, F. (F.), Villata, M. (M.), Raiteri, C. M. (C. M.), Agudo, I. (I), Bachev, R. (R.), Berdyugin, A. (A.), Blinov, D. A. (D. A.), Chanishvili, R. (R.), Chen, W. P. (W. P.), Chigladze, R. (R.), Damljanovic, G. (G.), Eswaraiah, C. (C.), Grishina, T. S. (T. S.), Ibryamov, S. (S.), Jordan, B. (B.), Jorstad, S. G. (S. G.), Joshi, M. (M.), Kopatskaya, E. N. (E. N.), Kurtanidze, O. M. (O. M.), Kurtanidze, S. O. (S. O.), Larionova, E. G. (E. G.), Larionova, L. V. (L., V), Larionov, V. M. (V. M.), Latev, G. (G.), Lin, H. C. (H. C.), Marscher, A. P. (A. P.), Mokrushina, A. A. (A. A.), Morozova, D. A. (D. A.), Nikolashvili, M. G. (M. G.), Semkov, E. (E.), Smith, P. S. (P. S.), Strigachev, A. (A.), Troitskaya, Y. V. (Yu, V), Troitsky, I. S. (I. S.), Vince, O. (O.), Barnes, J. (J.), Guver, T. (T.), Moody, J. W. (J. W.), Sadun, A. C. (A. C.), Hovatta, T. (T.), Richards, J. L. (J. L.), Max-Moerbeck, W. (W.), Readhead, A. C. (A. C. S.), Lahteenmaki, A. (A.), Tornikoski, M. (M.), Tammi, J. (J.), Ramakrishnan, V. (V), and Reinthal, R. (R.)
- Abstract
We report on a multiband variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 19. The study uses, among others, data from GLAST-AGILE Support Program (GASP) of the Whole Earth Blazar Telescope (WEBT), Swift, Nuclear Spectroscopic Telescope Array (NuSTAR), Fermi Large Area Telescope, Very Energetic Radiation Imaging Telescope Array System (VERITAS), and Major Atmospheric Gamma Imaging Cherenkov (MAGIC). The large blazar activity and the 43 hr of simultaneous NuSTAR and MAGIC/VERITAS observations permitted variability studies on 15 minute time bins over three X-ray bands (3–7 keV, 7–30 keV, and 30–80 keV) and three very-high-energy (VHE; >0.1 TeV) gamma-ray bands (0.2–0.4 TeV, 0.4–0.8 TeV, and >0.8 TeV). We detected substantial flux variations on multi-hour and sub-hour timescales in all of the X-ray and VHE gamma-ray bands. The characteristics of the sub-hour flux variations are essentially energy independent, while the multi-hour flux variations can have a strong dependence on the energy of the X-rays and the VHE gamma-rays. The three VHE bands and the three X-ray bands are positively correlated with no time lag, but the strength and characteristics of the correlation change substantially over time and across energy bands. Our findings favor multi-zone scenarios for explaining the achromatic/chromatic variability of the fast/slow components of the light curves, as well as the changes in the flux–flux correlation on day-long timescales. We interpret these results within a magnetic reconnection scenario, where the multi-hour flux variations are dominated by the combined emission from various plasmoids of different sizes and velocities, while the sub-hour flux variations are dominated by the emission from a single small plasmoid moving across the magnetic reconnection layer.
- Published
- 2020
250. Synthesis and pharmacological activity of 2-methoxyphenyl-and 2-oxyphenyl-substituted 1-dialkylaminoalkylimidazo[1,2-a]-benzimidazoles
- Author
-
Anisimova, V. A., Tolpygin, I. E., Spasov, A. A., Kosolapov, V. A., Chernikov, M. V., Stepanov, A. V., and Larionov, V. P.
- Published
- 2005
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.