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Wyświetlanie 1-10 z 91
Tytuł:
An algebraic derivative associated to the operator $D^δ$
Autorzy:
Almeida, V.
Castro, N.
Rodríguez, J.
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Powiązania:
https://bibliotekanauki.pl/articles/1207615.pdf  Link otwiera się w nowym oknie
Opis:
In this paper we get an algebraic derivative relative to the convolution $(f*g)(t)=∫_0^ti f(t-ψ)g(ψ)dψ$ associated to the operator $D^δ$, which is used, together with the corresponding operational calculus, to solve an integral-differential equation. Moreover we show a certain convolution property for the solution of that equation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation of the influence of slot geometry on the magnetic flux density of the air gap
Autorzy:
Lima, R. A. de
Coimbra, A. C. P.
Almeida, T.
Gomes, V. M.
Pereira, T. M.
Alves, A. J.
Calixto, W. P.
Tematy:
Carter's factor
finite element method
rotating machines
Pokaż więcej
Wydawca:
EEEIC International Barbara Leonowicz Szabłowska
Powiązania:
https://bibliotekanauki.pl/articles/136264.pdf  Link otwiera się w nowym oknie
Opis:
The objective of this work is to investigate the influence of slotted air gap constructive parameters on magnetic flux density of rotating machines. For this purpose, different approaches were used to solve the air gap field diagram using finite element method and the magnetic field distribution uniformity was evaluated by Carter's factor calculation on two-dimensional and three-dimensional models. Sensitivity analysis of slot constructive parameters was performed and results show that slot geometry modifies the magnetic flux on air gap and shifts the air gap magnetic equipotential midline of double slotted machines. Finally, minimization of Carter’s factor on two-dimensional model presents an optimized slot geometry with a near uniform magnetic flux density distribution.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rosaceae (Cydonia to Prunus, excl. Sorbus)
Autorzy:
Sennikov, Alexander N.
Lampinen, Raino
Kurtto, Arto
Współwytwórcy:
Majorov, S.R.
Lastrucci, L.
Glazkova, E.A.
Kulikov, P.V.
Brujić, J.
Notov, A.A.
Ulvinen, T.
Matevski, V.
Zázvorka, J.
Sytschak, N.M.
Niklfeld, H.
Suominen, J.
Somlyay, L.
Arrigoni, P.V.
Grigorjevskaya, A.J.
Olmo, M.
Tognon, G.
Argenti, C.
Ruocco, G.
Tretyakov, D.I.
Lattanzi, E.
Bernardo, L.
De, M.
Lepší, M.
Kalashnikova, O.V.
Kurtto, A.
Baldini, M.R.
Vasjukov, V.M.
Lazare, J.-J.
Zając, Adam
Yena, A.V.
Medagli, P.
Montserrat, P.
Bouvet, D.
Greuter, W.
Caspari, S.
Domina, G.
Ovesnov, S.A.
Iberite, M.
Marsili, S.
Bernátová, D.
Väre, H.
Preston, C.D.
Santangelo, A.
Fraga, M.I.
Vidali, M.
Sennikov, A.
Ufimov, R.A.
Vladimirov, V.
Peccenini, S.
Šulcs, V.
Oltu, E.
Fascetti, S.
Jeanmonod, D.
Crespí, A.L.
Krylov, A.V.
Alves, P.J.
Zappa, E.
Hinneri, S.
Muldashev, A.A.
Ahti, T.
Sennikov, A.N.
Lepší, P.
Dihoru, G.
Prosser, F.
Edmondson, J.
Vreš, B.
Danielewicz, W.
May, R.
Orlova, L.V.
Németh, C.
Knjazev, M.S.
Cornara, L.
Mârza, M.
Krasniqi, E.
Pedersen, O.
Uotila, P.
Dubovik, D.V.
Honrado, J.P.
Festi, F.
Popchenko, M.I.
Poldini, L.
Dihoru, A.
Abramov, †N.V.
Khapugin, A.A.
De, J.D.
Rakov, N.S.
Baranova, O.G.
Devesa, J.A.
Zhukova, O.V.
Rico, E.
Skuratovich, A.N.
Shuka, L.
Plaksina, T.I.
Constantinidis, T.
Gubellini, L.
Tomović, G.
Hyvärinen, M.
Marhold, K.
Caković, D.
Barina, Z.
Lahti, T.
Buttler, K.P.
Seregin, A.P.
Popescu, G.
Kasperek, G.
Cuccuini, P.
Drăgulescu, C.
Delgado, L.
Gubareva, I.YU.
Stupar, V.
Zieliński, J.
Weeda, E.J.
Pistarino, A.
Borisova, E.A.
Ericsson, S.
Van, W.
Gudžinskas, Z.
Šipošová, H.
Ruiz, E.
Marcucci, R.
Reshetnikova, N.M.
Goliašová, K.
Kostadinovski, M.
Kagalo, A.A.
Rinaldi, G.
Jordan, D.
Stevanović, V.
Király, G.
Kukk, T.
Sârbu, I.
Saksonov, S.V.
Mininzon, I.L.
Almeida, R.
Chkalov, A.V.
Wilhalm, T.
Brentan, M.
Oklejewicz, K.
La, A.
Gavrilova, Ģ.
Coutinho, A.X.P.
Guglielmone, L.
Dzhus, M.A.
Zając, Maria
Gygax, A.
Milanović, D.
Bertolli, A.
Lampinen, R.
Vukojičić, S.
Holverda, W.J.
Løfall, B.P.
Helminger, T.
Niketić, M.
Bartolucci, F.
Conti, F.
Rikkinen, J.
Einarsson, E.
Ozimec, S.
Siniscalco, C.
Raffaelli, M.
Ames, S.L.
Raimondo, F.M.
Ljungstrand, E.
Özhatay, N.
Fedoronchuk, N.M.
Maliński, T.
Wolanin, M.
Czopyk, V.I.
Demakhina, T.V.
Strid, A.
Stadnicka-futoma, A.
Wydawca:
Committee for Mapping the Flora of Europe
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Książka
Tytuł:
In vitro and in vivo activity of a new unsymmetrical dinuclear copper complex containing a derivative ligand of 1,4,7-triazacyclononane : catalytic promiscuity of $[Cu_{2}(L)Cl_{3}]$
Autorzy:
Haase, Wolfgang
Neves, Ademir
Schilling, Eduardo L.
Osório, Renata E. H. M. B.
Vilhena, Felipe
Szpoganicz, Bruno
Almeida, Vicente R. de
Bessa, Luiza M.
Pereira, Marcos D.
Bortoluzzi, Adailton J.
Xavier, Fernando R.
Bortolotto, Tiago
Alves, Odivaldo C.
Eleutherio, Elis C. A.
Tomkowicz, Zbigniew
Cavalett, Angelica
Terenzi, Hernán
Castro, Frederico A. V.
Costa, Thiago G.
Opis:
Here we present the synthesis of the dinuclear complex $[Cu_{2}^{II}(L)Cl_{3}]$ (1), where L is the deprotonated form of the 3-[(4,7-diisopropyl-1,4,7-triazacyclononan-1-yl)methyl]-2-hydroxy-5-methylbenzaldehyde ligand. The complex was characterized by single crystal X-ray diffraction, potentiometric titration, mass spectrometry, electrochemical and magnetic measurements, EPR, UV-Vis and IR. Complex 1 is able to increase the hydrolysis rate of the diester bis-(2,4-dinitrophenyl)phosphate (2,4-BDNPP) by a factor of 2700, and also to promote the plasmidial DNA cleavage at pH 6 and to inhibit the formazan chromophore formation in redox processes at pH 7. Using Saccharomyces cerevisiae (BY4741) as a eukaryotic cellular model, we observed that 1 presents reduced cytotoxicity. In addition, treatment of wild-type and mutant cells lacking Cu/Zn-superoxide dismutase (Sod1) and cytoplasmic catalase (Ctt1) with 1 promotes increased survival after $H_{2}O_{2}$ or menadione ($O_{2} ^{\cdot}$ -generator) stress, indicating that 1 might act as a Sod1 and Ctt1 mimetic. Considered together, these results support considerations regarding the dynamic behaviour of an unsymmetrical dinuclear copper(II) complex in solid state and in aqueous pH-dependent solution.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Gaia22dkvLb : a microlensing planet potentially accessible to radial-velocity characterization
Autorzy:
Christie, Grant W.
Cassan, A.
Bachelet, Etienne
Wyrzykowski, L.
Mikołajczyk, P. J.
Pylypenko, Uliana
Kruszyńska, Katarzyna
Ihanec, N.
Shangguan, Jinyi
Gromadzki, M.
Udalski, Andrzej
Dong, Subo
Wambsganss, J.
Zejmo, Michal
Liu, Chang
Mróz, Przemek
Merc, Jaroslav
Yi, Tuan
Andrzejewski, Jan
Street, Rachel
Howil, K.
Hambsch, Franz-Josef
Rybicki, K. A.
Rota, P.
de Almeida, L.
Woillez, J.
Sitek, M.
Potter, Stephen
Monard, L. A. G.
Bozza, V.
Mérand, A.
Lewis, Fraser
Bronikowski, Mateusz
Liu, Zhuokai
Zieliński, P.
Chen, Huiling
Hundertmark, M.
Zhang, Huawei
Tsapras, Y.
Huang, Yang
Michniewicz, Olga
Wu, Zexuan
McCormick, J.
Fukui, Akihiko
El-Badry, Kareem
Figuera Jaimes, R.
Słowikowska, A.
Gould, Andrew
Bąkowska, K.
Ratajczak, M.
Zoła, Stanisław
Dominik, M.
Natusch, Tim
Opis:
We report discovering an exoplanet from following up a microlensing event alerted by Gaia. The event Gaia22dkv is toward a disk source rather than the traditional bulge microlensing fields. Our primary analysis yields a Jovian planet with $M_{P}=0.59^{+0.15}_{-0.05}M_{J}$ at a projected orbital separation $r_{\perp} =1.4^{+0.8}_{-0.3}$ u, and the host is a ∼1.1 M$_{\bigodot }$ turnoff star at ∼1.3 kpc. At $r' \approx 14$, the host is far brighter than any previously discovered microlensing planet host, opening up the opportunity to test the microlensing model with radial velocity (RV) observations. RV data can be used to measure the planet's orbital period and eccentricity, and they also enable searching for inner planets of the microlensing cold Jupiter, as expected from the "inner–outer correlation" inferred from Kepler and RV discoveries. Furthermore, we show that Gaia astrometric microlensing will not only allow precise measurements of its angular Einstein radius θ$_{E}$ but also directly measure the microlens parallax vector and unambiguously break a geometric light-curve degeneracy, leading to the definitive characterization of the lens system.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Sensitivity of the Cherenkov Telescope Array to TeV photon emission from the Large Magellanic Cloud
Autorzy:
Ventura, S.
Benbow, W.
Niemiec, J.
Holler, M.
Fontaine, G.
Horan, D.
Grondin, M. -H.
Ribó, M.
Vallage, B.
de Gouveia Dal Pino, E. M.
Wierzcholska, Alicja
Lohse, T.
Orienti, M.
Chiavassa, A.
Rosales de Leon, A.
Bulgarelli, A.
Punch, M.
Reimer, O.
Chytka, L.
Bradascio, F.
Lindfors, E.
Asano, K.
Carosi, A.
Will, M.
Cerruti, M.
Persic, M.
Hassan, T.
Granot, J.
Sergijenko, O.
López-Oramas, A.
Bhattacharyya, S.
Reimer, A.
Mukherjee, R.
Angüner, E. O.
Baquero Larriva, A.
Kosack, K.
Martí, J.
Zhdanov, V. I.
Bigongiari, C.
Schussler, F.
Hnatyk, B.
Komin, N.
Ostrowski, Michał
Lombardi, S.
Bernardos Martín, M. I.
Cotter, G.
Beshley, V.
Leuschner, F.
Arcaro, C.
Dwarkadas, V. V.
Nievas, M.
Dumora, D.
Lamastra, A.
Di Piano, A.
Backes, M.
Filipovic, M.
Bernete Medrano, J.
Pantaleo, F. R.
Nishijima, K.
Rieger, F.
Suda, Y.
Dalchenko, M.
Siejkowski, Hubert
Hofmann, W.
Alfaro, J.
della Volpe, D.
Balbo, M.
Yamazaki, R.
Macias, O.
Bamba, A.
Živec, M.
Becerra González, J.
Paoletti, R.
Hrabovsky, M.
Zacharias, M.
Gaggero, D.
Santos-Lima, R.
Meyer, D. M. -A.
Inoue, S.
Kantzas, D.
Mangano, S.
Depaoli, D.
Prandini, E.
Di Tria, R.
Vitale, V.
Caroff, S.
Ohm, S.
Agudo, I.
Ferenc, D.
Iocco, F.
Leone, F.
López-Coto, R.
De Caprio, V.
Barbosa Martins, V.
Vink, J.
Casanova, S.
Alves Batista, R.
Mohrmann, L.
Rando, R.
Orlandini, M.
Böttcher, M.
Heller, M.
Pecimotika, M.
Teshima, M.
Amato, E.
Borkowski, J.
del Valle, M. V.
Rodriguez Fernandez, G.
Rudak, B.
Crestan, S.
Garczarczyk, M.
Vacula, M.
Ziętara, Krzysztof
Priyadarshi, C.
Miceli, M.
Tavernier, T.
Moulin, E.
Diebold, S.
Escudero, J.
Cristofari, P.
Torres, D. F.
Rizi, V.
Barres de Almeida, U.
Nagataki, S.
Baktash, A.
Balazs, C.
De Martino, D.
Cortina, J.
Rico, J.
Walter, R.
Jamrozy, Marek
Kowal, Grzegorz
Fedorova, E.
Moderski, R.
Vodeb, V.
Hayashi, K.
Bordas, P.
Vigorito, C. F.
Juryšek, J.
Lemoine-Goumard, M.
Falceta-Goncalves, D.
Nosek, D.
Gallozzi, S.
Ballet, J.
Moralejo, A.
Orlando, E.
Vázquez Acosta, M.
Pühlhofer, G.
Ashkar, H.
Bissaldi, E.
Michałowski, J.
Delgado, C.
Emery, G.
Rigoselli, M.
Lenain, J. -P.
Manicò, G.
Doro, M.
Bastieri, D.
Giuliani, A.
Longo, F.
Carquín, E.
Green, J. G.
Lapington, J.
Horvath, P.
Hamal, P.
Majumdar, P.
Fegan, S.
Bocchino, F.
Fioretti, V.
Goldoni, P.
Santangelo, A.
Zavrtanik, M.
Aguasca-Cabot, A.
Pech, M.
Galaz, G.
Ghalumyan, A.
Holder, J.
Becker Tjus, J.
Petruk, O.
Reposeur, T.
Giavitto, G.
Tothill, N.
Di Venere, L.
Rainò, S.
Pohl, M.
Karas, V.
Olmi, B.
Gasbarra, C.
Oya, I.
Kornecki, P.
Spencer, S.
Richtler, T.
Servillat, M.
Galanti, G.
Siqueira, C.
Yoshikoshi, T.
Burmistrov, L.
Dazzi, F.
Hütten, M.
Orito, R.
Rosado, J.
Katagiri, H.
Bhattacharjee, P.
Fukui, Y.
Noda, K.
Chadwick, P.
Giordano, F.
D'Ammando, F.
Fiandrini, E.
Leto, G.
Gasparrini, D.
Kerszberg, D.
Menchiari, S.
Roache, E.
Aramo, C.
de Naurois, M.
Patricelli, B.
Viana, A.
Pumo, M. L.
Sánchez-Conde, M.
Berti, A.
Chen, A.
Molero, M.
Stanič, S.
Nayak, A.
Ohishi, M.
Nozaki, S.
Palatka, M.
Pietropaolo, E.
Martínez, M.
Kubo, H.
Martin, P.
Vorobiov, S.
Brown, A. M.
Schwanke, U.
Munari, K.
Incardona, F.
Stolarczyk, T.
Romeo, G.
White, M.
Queiroz, F. S.
Scherer, A.
Aguirre-Santaella, A.
Vecchi, M.
Molina, E.
Eckner, C.
Romano, P.
Sano, H.
Giarrusso, M.
Goulart Coelho, J.
Bernardini, E.
Feng, Q.
Pierre, E.
Paredes, J. M.
Zdziarski, A. A.
Vuillaume, T.
Sarkar, S.
Barrio, J. A.
Foffano, L.
Gammaldi, V.
Jin, W.
Hadasch, D.
Moya, V.
Morselli, A.
Miceli, D.
Di Girolamo, T.
Iarlori, M.
Knödlseder, J.
de Souza, V.
Razzaque, S.
Steppa, C.
Mariotti, M.
Ong, R. A.
Tibaldo, L.
Vallania, P.
Hnatyk, R.
Adam, R.
Orlando, S.
Inada, T.
Rulten, C.
Stamerra, A.
Zavrtanik, D.
van Eldik, C.
Muraczewski, A.
Costantini, H.
Bottacini, E.
Mazin, D.
Loporchio, S.
Delgado Giler, A. G.
Giglietto, N.
De Angelis, A.
Batista, P.
Wagner, S. J.
Mitchell, A.
Pagliaro, A.
Morcuende, D.
Conforti, V.
Green, D.
Yang, L.
Saturni, F. G.
Chaty, S.
Novosyadlyj, B.
Cascone, E.
Luque-Escamilla, P. L.
Costa, A.
Quirrenbach, A.
Aschersleben, J.
Montaruli, T.
Jung-Richardt, I.
Marquez, P.
Sadeh, I.
Batkovic, I.
Mandat, D.
Bertucci, B.
Hiroshima, N.
Nikołajuk, M.
Glicenstein, J. -F.
Pirola, G.
Gueta, O.
Cassol, F.
Di Pierro, F.
Nakamori, T.
Egberts, K.
Parmiggiani, N.
Ferrand, G.
Aloisio, R.
Hernández Cadena, S.
Marsella, G.
Acharyya, A.
Zaharijas, G.
Biland, A.
Saito, T.
Baxter, J. R.
Okumura, A.
Schovanek, P.
Vercellone, S.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
MAGIC gamma-ray and multi-frequency observations of flat spectrum radio quasar PKS 1510−089 in early 2012
Autorzy:
Noda, K.
Zanin, R.
Bonnefoy, S.
Bangale, P.
Surić, T.
Manilla-Robles, A.
Carosi, A.
Bednarek, W.
Delgado Mendez, C.
Torres, D. F.
Zarpudin, B.
Bretz, T.
Hrupec, D.
La Barbera, A.
Ribó, M.
Treves, A.
Raiteri, C. M.
Schultz, C.
Villata, M.
Steinbring, T.
Lähteenmäki, A.
Chen, W. P.
Carnerero, M. I.
López-Oramas, A.
Readhead, A. C. S.
Satalecka, K.
Uellenbeck, M.
Barrio, J. A.
Temnikov, P.
Tammi, J.
Scapin, V.
Kellermann, H.
Marscher, A.
Partini, S.
Ansoldi, S.
López, M.
Verrecchia, F.
Aller, M. F.
Morozova, D. A.
Saito, T.
Orienti, M.
Dazzi, F.
Dominis Prester, D.
Doert, M.
Maneva, G.
Biland, A.
Barres de Almeida, U.
Font, L.
Mazin, D.
Shore, S. N.
Molina, S. N.
Nilsson, K.
Fuhrman, L.
Mallot, K.
Sitarek, J.
Dorner, D.
Nestoras, I.
Godinović, N.
Bonnoli, G.
Borracci, F.
Gurwell, M. A.
Lewandowska, N.
Fruck, C.
Kadenius, V.
Kurtanidze, S. O.
Hayashida, M.
Ferenc, D.
Gaug, M.
Ovcharov, E.
Tornikoski, M.
Hovatta, T.
Krause, J.
Konstantinova, T. S.
Overkemping, A.
Paredes-Fortuny, X.
Makariev, M.
Antoranz, P.
Marcote, B.
Takami, H.
Wagner, R. M.
Chigladze, R. A.
Mirzoyan, R.
Reinthal, R.
Fonseca, M. V.
Sillanpää, A.
Ungerechts, H.
Panwar, N.
Orito, R.
Prada Moroni, P. G.
Bernardini, E.
Herrero, A.
Jorstad, S.
Blinov, D. A.
Bozhilov, V.
Mundell, C.
Nishijima, K.
Domínguez, A.
Paneque, D.
Babic, A.
Stamatescu, V.
Toyama, T.
Lombardi, S.
Vercellone, S.
Contreras, J. L.
Eisenacher, D.
Menzel, U.
Buson, S.
Covino, S.
Max-Moerbeck, W.
Da Vela, P.
Colin, P.
Rodriguez Garcia, J.
Idec, W.
Herrera, J.
Palatiello, M.
Paiano, S.
Paoletti, R.
Persic, M.
Richards, J. L.
Preziuso, S.
Scalzotto, V.
Giroletti, M.
Einecke, S.
Zandanel, F.
Troitsky, I. S.
Doro, M.
Lucarelli, F.
D’Ammando, F.
Munar-Adrover, P.
Sobczynska, D.
Stawarz, Łukasz
González Muñoz, A.
Carmona, E.
Hose, J.
Miranda, J. M.
Gómez, J. L.
Teshima, M.
Tescaro, D.
Pavlova, Yu. V.
Rhode, W.
Kodani, K.
Rügamer, S.
Agudo, I.
Aller, H. D.
Nakajima, D.
De Lotto, B.
Aleksić, J.
Carreto Fidalgo, D.
Zensus, J. A.
Mankuzhiyil, N.
Schweizer, T.
García López, R. J.
Rico, J.
Larionova, E. G.
Lelas, D.
Sandrinelli, A.
Pittori, C.
Kopatskaya, E. N.
Kushida, J.
Elsaesser, D.
Vogler, P.
Stamerra, A.
Lorenz, E.
Farina, E.
Strzys, M.
Takalo, L.
Steele, I.
Hildebrand, D.
Casadio, C.
De Caneva, G.
Sun, S.
Thaele, J.
Prandini, E.
Angelakis, E.
Saggion, A.
Paredes, J. M.
Frantzen, K.
Gozzini, S. R.
Hadasch, D.
Garczarczyk, M.
Lozano, I.
Acosta-Pulido, J. A.
Spanier, F.
Terzić, T.
Snidaric, I.
Lin, H. C.
Puljak, I.
Moralejo, A.
Mannheim, K.
Konno, Y.
Metodieva, I.
Tavecchio, F.
Nowak, N.
Saito, K.
Prada, F.
De Angelis, A.
Kurtanidze, O. M.
Larionova, L. V.
Sievers, A.
Martínez, M.
Garrido Terrats, D.
Niedzwiecki, A.
Colombo, E.
Antonelli, L. A.
Lindfors, E.
Storz, J.
Larionov, V. M.
Mariotti, M.
Krichbaum, T. P.
Maraschi, L.
López-Coto, R.
Blanch, O.
Cortina, J.
Meucci, M.
Becerra, González J.
Tibolla, O.
Mokrushina, A. A.
Nikolashvili, M. G.
Kubo, H.
Opis:
Aims. Amongst more than fifty blazars detected in very high energy (VHE, E> 100 GeV) γ rays, only three belong to the subclass of flat spectrum radio quasars (FSRQs). The detection of FSRQs in the VHE range is challenging, mainly because of their soft spectra in the GeV-TeV regime. MAGIC observed PKS 1510−089 (z = 0.36) starting 2012 February 3 until April 3 during a high activity state in the high energy (HE, E> 100 MeV) $\gamma$-ray band observed by AGILE and Fermi. MAGIC observations result in the detection of a source with significance of 6.0 standard deviations (σ). We study the multi-frequency behaviour of the source at the epoch of MAGIC observation, collecting quasi-simultaneous data at radio and optical (GASP-WEBT and F-Gamma collaborations, REM, Steward, Perkins, Liverpool, OVRO, and VLBA telescopes), X-ray (Swift satellite), and HE $\gamma$-ray frequencies. Methods. We study the VHE $\gamma$-ray emission, together with the multi-frequency light curves, 43 GHz radio maps, and spectral energy distribution (SED) of the source. The quasi-simultaneous multi-frequency SED from the millimetre radio band to VHE γ rays is modelled with a one-zone inverse Compton model. We study two different origins of the seed photons for the inverse Compton scattering, namely the infrared torus and a slow sheath surrounding the jet around the Very Long Baseline Array (VLBA) core. Results. We find that the VHE $\gamma$-ray emission detected from PKS 1510−089 in 2012 February-April agrees with the previous VHE observations of the source from 2009 March-April. We find no statistically significant variability during the MAGIC observations on daily, weekly, or monthly time scales, while the other two known VHE FSRQs (3C 279 and PKS 1222+216) have shown daily scale to sub-hour variability. The $\gamma$-ray SED combining AGILE, Fermi and MAGIC data joins smoothly and shows no hint of a break. The multi-frequency light curves suggest a common origin for the millimetre radio and HE $\gamma$-ray emission, and the HE $\gamma$-ray flaring starts when the new component is ejected from the 43 GHz VLBA core and the studied SED models fit the data well. However, the fast HE $\gamma$-ray variability requires that within the modelled large emitting region, more compact regions must exist. We suggest that these observed signatures would be most naturally explained by a turbulent plasma flowing at a relativistic speed down the jet and crossing a standing conical shock.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Prospects for γ-ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array
Autorzy:
Burton, M.
Di Venere, L.
Terauchi, K.
Petrucci, P.-O.
Heller, M.
Pühlhofer, G.
Meyer, D.M.-A.
Cifuentes, A.
Vovk, I.
Vázquez Acosta, M.
Cuevas, O.
Pantaleo, F.R.
Pirola, G.
Berti, A.
Di Girolamo, T.
Pueschel, E.
Ostrowski, Michał
Roache, E.
Brunetti, G.
Aschersleben, J.
Kobayashi, Y.
Wohlleben, F.
de Bony de Lavergne, M.
Incardona, F.
Kluźniak, W.
Fegan, S.
Lamastra, A.
Dominik, R.M.
Caproni, A.
Aguasca-Cabot, A.
Patricelli, B.
Nagataki, S.
Ribeiro, D.
Lenain, J.-P.
Laporte, P.
Hoffmann, D.
Depaoli, D.
Kataoka, J.
Emery, G.
Di Piano, A.
Conte, F.
Sergijenko, O.
Fallah Ramazani, V.
Torradeflot, F.
Lemoine-Goumard, M.
Nickel, L.
Horan, D.
Petruk, O.
Vitale, V.
Vercellone, S.
Yamamoto, T.
Bottacini, E.
Tsiahina, A.
Rudak, B.
Feng, Q.
Pintore, F.
Sliusar, V.
Cotter, G.
Palatiello, M.
Janecek, P.
Paoletti, R.
O'Brien, P.
Gasbarra, C.
Riitano, L.
Brun, F.
Wechakama, M.
Pietropaolo, E.
Kleiner, T.
Rainò, S.
Romeo, G.
Chaty, S.
Barbosa Martins, V.
Servillat, M.
Kluge, G.
Eckner, C.
Tramacere, A.
Giarrusso, M.
Rhode, W.
Pumo, M.L.
Oya, I.
Schipani, P.
Katagiri, H.
Viana, A.
Terrier, R.
De Lotto, B.
Santos-Lima, R.
Molfese, C.
Moderski, R.
Longo, F.
Torresi, E.
Zacharias, M.
Alfaro, R.
Gallozzi, S.
Kushida, J.
Hara, S.
Peron, G.
Harvey, V.M.
Contreras, J.L.
Shang, R.Y.
De Simone, N.
Gaggero, D.
Hadasch, D.
Grolleron, G.
De la Torre Luque, P.
Zhdanov, V.I.
Araya, M.
Donini, A.
Láinez, M.
Mas-Aguilar, A.
Bulgarelli, A.
Vodeb, V.
Salzmann, H.
Bhattacharjee, P.
della Volpe, D.
Fukui, Y.
Kowal, G.
Castro-Tirado, A.J.
Murach, T.
Benbow, W.
Kantzas, D.
Nievas Rosillo, M.
Strišković, J.
Grenier, I.
Delagnes, E.
Blanch, O.
González, J.M.
Savchenko, V.
Rosales de Leon, A.
Baquero Larriva, A.
Gueta, O.
Nosek, D.
Mello, A.J.T.S.
Font Guiteras, L.
Rowell, G.
Jiménez Martínez, I.
Podobnik, F.
Jean, P.
Principe, G.
Amato, E.
del Valle, M.V.
Ribó, M.
Hrupec, D.
Tothill, N.
Leitgeb, F.
Meyer, M.
Will, M.
Melkumyan, D.
Schubert, J.L.
Esposito, P.
Escudero, J.
Molina, E.
Vallage, B.
Leuschner, F.
Bronzini, E.
Hamal, P.
Tavernier, T.
Munari, K.
de Souza, V.
Mackey, J.
Faure, A.
Dazzi, F.
Arrabito, L.
Holder, J.
Ong, R.A.
Biland, A.
Sano, H.
Rodriguez Fernandez, G.
Vecchi, M.
Reichherzer, P.
Zdziarski, A.A.
Stolarczyk, T.
Batista, P.I.
Heckmann, L.
Righi, C.
Knödlseder, J.
Majumdar, P.
Nikołajuk, M.
Meunier, J.-L.
Rulten, C.B.
Caroff, S.
Dwarkadas, V.V.
Reisenegger, A.
Suomijärvi, T.
Galanti, G.
Batzofin, R.
Ohishi, M.
Hoang, J.
Morlino, G.
Saturni, F.G.
Nishijima, K.
Carrasco, M.-S.
Schwefer, G.
Beck, G.
Pagliaro, A.
Iocco, F.
Santangelo, A.
Ballester, O.
Delgado, C.
Jankowsky, F.
De Frondat Laadim, F.
Verna, G.
Ghalumyan, A.
Einecke, S.
González, M.M.
Steppa, C.
Prast, J.
Ashkar, H.
Starling, R.
Juramy-Gilles, C.
Produit, N.
Márquez, I.
Vallania, P.
Manicò, G.
Agudo, I.
Romano, P.
Nakamori, T.
Giesbrecht, J.
Martínez, G.A.
Toussenel, F.
Burmistrov, L.
Michałowski, J.
dos Anjos, R.D.C.
Curtis-Ginsberg, Z.
Biederbeck, N.
Rando, R.
Karas, V.
Chen, A.W.
Miener, T.
Escobar Godoy, M.
Pérez-Romero, J.
Chytka, L.
Prandini, E.
Antonelli, L.A.
Vacula, M.
Pech, M.
Panebianco, G.
Rizi, V.
Alvarez-Crespo, N.
Giordano, F.
Schwanke, U.
Acero, F.
Patel, S.R.
Šarić, T.
Balazs, C.
Hnatyk, R.
Blazek, J.
Zuriaga-Puig, J.
Delgado Giler, A.G.
Fioretti, V.
Punch, M.
Grube, J.
Lindfors, E.
Mastropietro, M.
Scherer, A.
Molero, M.
Acharyya, A.
Leto, G.
Cortina, J.
Marty, C.
Morcuende, D.
Batkovic, I.
Suda, Y.
Kubo, H.
Tajima, H.
Braiding, C.
Abe, S.
Ventura, S.
Ponti, G.
Mizuno, T.
Paredes, J.M.
Jamrozy, Marek
Olmi, B.
Marsella, G.
Leone, F.
Pita, S.
Satalecka, K.
Becker Tjus, J.
Olive, J.-F.
Tosti, L.
White, R.
Bradascio, F.
Orienti, M.
Lazarević, S.
Falceta-Goncalves, D.
Vandenbroucke, J.
Piano, G.
Voutsinas, G.
Sarkar, A.
Mitchell, A.
Reimer, A.
Barres de Almeida, U.
Biteau, J.
de Naurois, M.
Morik, K.
Dorner, D.
Živec, M.
Fedorova, E.
Cerasole, D.
Bhattacharyya, S.
Reimer, O.
Gasparrini, D.
Calisse, P.G.
Chadwick, P.
Sol, H.
Barrio, J.A.
Filipovic, M.
Fröse, S.
Green, D.
Baxter, J.
Egberts, K.
Pohl, M.
Zavrtanik, D.
Feijen, K.
Kaufmann, S.
Orito, R.
Giglietto, N.
Dumora, D.
Green, J.G.
Jin, W.
Miranda, J.M.
Paneque, D.
Nemmen, R.
Sanchez, D.
Pierre, E.
Aramo, C.
Chernyakova, M.
Boisson, C.
Horvath, P.
Michailidis, M.
Sanuy, A.
Cantlay, B.K.
Kerszberg, D.
Bucciantini, N.
Baktash, A.
Muraczewski, A.
Nozaki, S.
Brown, A.M.
Hackfeld, J.
Balbo, M.
Mandat, D.
Rieger, F.
Luque-Escamilla, P.L.
Yamazaki, R.
Doro, M.
Cerruti, M.
De Lucia, M.
Pons, E.
Truzzi, S.
Polo, M.
Niemiec, J.
Schleicher, B.
Tibaldo, L.
Chiavassa, A.
Vorobiov, S.
Manganaro, M.
Backes, M.
Tian, W.W.
Vigorito, C.F.
Vuillaume, T.
Inoue, S.
Wolter, A.
Okumura, A.
Khélifi, B.
La Palombara, N.
Rosado, J.
Rico, J.
Grau, R.
Iarlori, M.
Abe, K.
Tak, D.
Takeishi, R.
Hnatyk, B.
Markoff, S.
Costa, A.
Tejedor, L.A.
Bissaldi, E.
Vassiliev, V.
Yoshikoshi, T.
Djuvsland, J.
Recchia, S.
D'Ammando, F.
Djannati-Ataï, A.
Hassan, T.
Moulin, E.
Schussler, F.
Semikoz, D.
De Caprio, V.
Sánchez-Conde, M.
Martinez, O.
Loporchio, S.
Caraveo, P.
Starecki, T.
Hie, J.
Hanlon, W.
Macias, O.
Duangchan, C.
Goulart Coelho, J.
Gréaux, L.
Martínez, M.
Santander, M.
Bertucci, B.
Fattorini, A.
Mariotti, M.
Conforti, V.
López-Coto, R.
Ohtani, Y.
Carquin, E.
Quirrenbach, A.
Aguirre-Santaella, A.
Jarnot, C.
Stanič, S.
Linhoff, M.
Glicenstein, J.-F.
Bordas, P.
Pavlović, D.
Siqueira, C.
Lapington, J.
Bernete Medrano, J.
Torres, D.F.
Noda, K.
Morselli, A.
Muraishi, H.
Iori, M.
Nieto, D.
Slowikowska, A.
Richtler, T.
Gammaldi, V.
Asano, K.
Dournaux, J.-L.
Takahashi, M.
Walter, R.
La Barbera, A.
Zavrtanik, M.
López-Oramas, A.
de Gouveia Dal Pino, E.M.
Williams, D.A.
Razzaque, S.
Tutone, A.
Saito, T.
Hernández Cadena, S.
Amans, J.-P.
Mazin, D.
Alves Batista, R.
Inada, T.
Dörner, J.
Cristofari, P.
Spiga, D.
Liodakis, I.
Travnicek, P.
De Martino, D.
Mizote, M.
Gaug, M.
Spencer, S.T.
de Menezes, R.
Orlando, E.
Kissmann, R.
Kornecki, P.
Capuzzo-Dolcetta, R.
Brose, R.
Hofmann, W.
Novotny, V.
Sarkar, S.
van Scherpenberg, J.
Chudoba, J.
Parmiggiani, N.
Seiji, S.
Becerra González, J.
Bernlöhr, K.
Lombardi, S.
Plard, C.
Kosack, K.
Moya Zamanillo, V.
Burelli, I.
Sguera, V.
Diebold, S.
Dalchenko, M.
Campoy-Ordaz, A.
Ferrarotto, F.
Kohri, K.
Costantini, H.
Persic, M.
Bosnjak, Z.
Sadeh, I.
Goldoni, P.
Yoshida, T.
Göksu, H.
Specovius, A.
Rodríguez-Vázquez, J.J.
Voisin, V.
Viaux, N.
Evoli, C.
Fukazawa, Y.
Hervet, O.
Stawarz, Łukasz
Ferrand, G.
López-Moya, M.
Bolmont, J.
Sinha, A.
Kagaya, M.
Teshima, M.
Russo, F.
Orlandini, M.
Tanaka, S.J.
Pensec, U.
Foffano, L.
Malyshev, D.
Beshley, V.
Tripodo, G.
Granot, J.
D'Amico, G.
Fiandrini, E.
Coimbra Araujo, C.H.
Komin, N.
Regeard, M.
Elsässer, D.
Fiasson, A.
Neyroud, N.
Sharma, P.
Stamerra, A.
Priyadarshi, C.
Montaruli, T.
Peresano, M.
Ettori, S.
Queiroz, F.
Ebr, J.
Garczarczyk, M.
Alfaro, J.
Wierzcholska, A.
Sangiorgi, P.
Zaharijas, G.
Adam, R.
van Eldik, C.
Carosi, R.
Wagner, S.J.
Pecimotika, M.
Capalbi, M.
Bylund, T.
Zech, A.
Touzard, V.
Gianotti, F.
Arcaro, C.
Miceli, D.
Augusto Stuani, L.
Tosti, G.
Bi, B.
Di Pierro, F.
Marquez, P.
Baack, D.
Dell'aiera, M.
Maurin, G.
Siejkowski, H.
Seglar Arroyo, M.
Angüner, E.O.
Fontaine, G.
Ascasíbar, Y.
Jurysek, J.
Cassol, F.
Dubos, C.
Di Tria, R.
Saha, L.
Tibolla, O.
Hütten, M.
Cascone, E.
Hiroshima, N.
Vigliano, A.
Opis:
Galaxy clusters are expected to be both dark matter (DM) reservoirs and storage rooms for the cosmic-ray protons (CRp) that accumulate along the cluster's formation history. Accordingly, they are excellent targets to search for signals of DM annihilation and decay at γ-ray energies and are predicted to be sources of large-scale γ-ray emission due to hadronic interactions in the intracluster medium (ICM). In this paper, we estimate the sensitivity of the Cherenkov Telescope Array (CTA) to detect diffuse γ-ray emission from the Perseus galaxy cluster. We first perform a detailed spatial and spectral modelling of the expected signal for both the DM and the CRp components. For each case, we compute the expected CTA sensitivity accounting for the CTA instrument response functions. The CTA observing strategy of the Perseus cluster is also discussed. In the absence of a diffuse signal (non-detection), CTA should constrain the CRp to thermal energy ratio X$_{500}$ within the characteristic radius R$_{500}$ down to about $X_{500}< 3 \times10^{-3}$, for a spatial CRp distribution that follows the thermal gas and a CRp spectral index α$_{CRp}$ = 2.3. Under the optimistic assumption of a pure hadronic origin of the Perseus radio mini-halo and depending on the assumed magnetic field profile, CTA should measure α$_{CRp}$ down to about Δα$_{CRp}$ ≃ 0.1 and the CRp spatial distribution with 10% precision, respectively. Regarding DM, CTA should improve the current ground-based γ-ray DM limits from clusters observations on the velocity-averaged annihilation cross-section by a factor of up to ∼ 5, depending on the modelling of DM halo substructure. In the case of decay of DM particles, CTA will explore a new region of the parameter space, reaching models with $\tau_{χ} > 10^{27}$ s for DM masses above 1 TeV. These constraints will provide unprecedented sensitivity to the physics of both CRp acceleration and transport at cluster scale and to TeV DM particle models, especially in the decay scenario.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Wyświetlanie 1-10 z 91

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