We conclude that the majority of the UV variability is therefore intrinsic, connected to mass accretion rate fluctuations in the warm Comptonisation region. Results on lower Eddington fraction AGN have emphasised the contribution from reverberation from larger scales (the broad line region), but reverberation induces lags on similar timescales to the smoothing, producing a larger delay than is compatible with the data. The soft X-rays (connected to the UV in the warm Comptonisation model) are more variable than the hard, but again contain too much fast variability to match the observed smoother variability seen in the UV. Increasing the coronal scale height to ~100 R g improves the match to the observed amplitude of UV variability as the disc subtends a larger solid angle, but results in too much fast variability to match the UV data. Illumination from a hard X-ray corona with height ~10 R g produces minimal UV variability. Unlike the lower Eddington fraction AGN (NGC 4151 and NGC 5548 at L/L Edd ~ 0.02 and 0.03 respectively), the SED of Akn 120 (L ~ 0.05L Edd) is dominated by the UV, restricting the impact of reverberating hard X-rays by energetics alone. We model the spectral energy distribution including an outer standard disc (optical), an intermediate warm Comptonisation region (UV and soft X-ray) and a hot corona (hard X-rays). The hard X-rays (1-10 keV) show large amplitude, fast (few-day) variability, so we expect reverberation from the disc to produce UV variability from the varying hard X-ray illumination. 1433-1443.We explore the accretion geometry in Arakelian 120 using intensive UV and X-ray monitoring from Swift. from a refined molecular model, and then re-scaling the raw diffraction data. Thomas, Francesco Tombesi, Alessio Trois, Roberto Turolla, Jacco Vink, Kinwah Wu, Fei Xie Show 74 others Show lessĪuthor = "Victor Doroshenko and Juri Poutanen and Tsygankov, 2022, The Author(s), under exclusive licence to Springer Nature Limited.",ĭoroshenko, V, Poutanen, J, Tsygankov, SS, Suleimanov, VF, Bachetti, M, Caiazzo, I, Costa, E, Di Marco, A, Heyl, J, La Monaca, F, Muleri, F, Mushtukov, AA, Pavlov, GG, Ramsey, BD, Rankin, J, Santangelo, A, Soffitta, P, Staubert, R, Weisskopf, MC, Zane, S, Agudo, I, Antonelli, LA, Baldini, L, Baumgartner, WH, Bellazzini, R, Bianchi, S, Bongiorno, SD, Bonino, R, Brez, A, Bucciantini, N, Capitanio, F, Castellano, S, Cavazzuti, E, Ciprini, S, De Rosa, A, Del Monte, E, Di Gesu, L, Di Lalla, N, Donnarumma, I, Dovčiak, M, Ehlert, SR, Enoto, T, Evangelista, Y, Fabiani, S, Ferrazzoli, R, Garcia, JA, Gunji, S, Hayashida, K, Iwakiri, W, Jorstad, SG, Karas, V, Kitaguchi, T, Kolodziejczak, JJ, Krawczynski, H, Latronico, L, Liodakis, I, Maldera, S, Manfreda, A, Marin, F, Marinucci, A, Marscher, AP, Marshall, HL, Matt, G, Mitsuishi, I, Mizuno, T, Ng, CY, O’Dell, SL, Omodei, N, Oppedisano, C, Papitto, A, Peirson, AL, Perri, M, Pesce-Rollins, M, Pilia, M, Possenti, A, Puccetti, S, Ratheesh, A, Romani, RW, Sgrò, C, Slane, P, Spandre, G, Sunyaev, RA, Tamagawa, T, Tavecchio, F, Taverna, R, Tawara, Y, Tennant, AF, Thomas, NE, Tombesi, F, Trois, A, Turolla, R, Vink, J, Wu, K & Xie, F 2022, ' Determination of X-ray pulsar geometry with IXPE polarimetry', Nature Astronomy, vol. The absorption of x-rays as they pass through the protein crystal is. Sunyaev, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Determine the path loss and phase shift of each ray using electromagnetic analysis, including tracing the horizontal and vertical polarizations of. Support 3-D outdoor and indoor environments. Other propagation models compute only single propagation paths. Romani, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Rashid A. Ray tracing models: Are valid from 100 MHz to 100 GHz. Peirson, Matteo Perri, Melissa Pesce-Rollins, Maura Pilia, Andrea Possenti, Simonetta Puccetti, Ajay Ratheesh, Roger W. O’Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, Abel L. Marshall, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Chi Yung Ng, Stephen L. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Jorstad, Vladimir Karas, Takao Kitaguchi, Jeffery J. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Wataru Iwakiri, Svetlana G. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Immacolata Donnarumma, Michal Dovčiak, Steven R. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Weisskopf, Silvia Zane Iván Agudo, Lucio A. Ramsey, John Rankin, Andrea Santangelo, Paolo Soffitta, Rüdiger Staubert, Martin C. ![]() Suleimanov, Matteo Bachetti, Ilaria Caiazzo, Enrico Costa, Alessandro Di Marco, Jeremy Heyl, Fabio La Monaca, Fabio Muleri, Alexander A. Victor Doroshenko, Juri Poutanen, Sergey S.
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