Theoretical astrophysics and plasma physics at RPC

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Searching for TeV gamma-ray emission from SGR\,1935+2154 during its 2020 X-ray and radio bursting phase

(2021)

Authors:

HESS Collaboration, :, H Abdalla, F Aharonian, F Ait Benkhali, EO Anguner, C Arcaro, C Armand, T Armstrong, H Ashkar, M Backes, V Baghmanyan, V Barbosa Martins, A Barnacka, M Barnard, Y Becherini, D Berge, K Bernlohr, B Bi, M Bottcher, C Boisson, J Bolmont, M de Bony de Lavergne, M Breuhaus, R Brose, F Brun, P Brun, M Bryan, M Buchele, T Bulik, T Bylund, F Cangemi, S Caroff, A Carosi, S Casanova, P Chambery, T Chand, S Chandra, A Chen, G Cotter, M Cury lo, J Damascene Mbarubucyeye, ID Davids, J Davies, C Deil, J Devin, L Dirson, A Djannati-Ataï, A Dmytriiev, A Donath, V Doroshenko, L Dreyer, C Duffy, L Du Plessis, J Dyks, K Egberts, F Eichhorn, S Einecke, G Emery, J-P Ernenwein, K Feijen, S Fegan, A Fiasson, G Fichet de Clairfontaine, G Fontaine, S Funk, M Füßling, S Gabici, YA Gallant, S Ghafourizade, G Giavitto, L Giunti, D Glawion, JF Glicenstein, M-H Grondin, J Hahn, M Haupt, S Hattingh, G Hermann, JA Hinton, W Hofmann, C Hoischen, TL Holch, M Holler, M Horbe, D Horns, Z Huang, D Huber, M Jamrozy, D Jankowsky, F Jankowsky, A Jardin-Blicq, V Joshi, I Jung-Richardt, E Kasai, MA Kastendieck, K Katarzyński, U Katz, D Khangulyan, B Khélifi, S Klepser, W Kluźniak, Nu Komin, R Konno, K Kosack, D Kostunin, M Kreter, G Kukec Mezek, A Kundu, G Lamanna, A Lemière, M Lemoine-Goumard, J-P Lenain, S Le Stum, F Leuschner, C Levy, T Lohse, A Luashvili, I Lypova, J Mackey, J Majumdar, D Malyshev, D Malyshev, V Marandon, P Marchegiani, A Marcowith, A Mares, G Martí-Devesa, R Marx, G Maurin, PJ Meintjes, M Meyer, A Mitchell, R Moderski, L Mohrmann, A Montanari, C Moore, P Morris, E Moulin, J Muller, T Murach, K Nakashima, A Nayerhoda, M de Naurois, H Ndiyavala, J Niemiec, L Oakes, P O'Brien, H Odaka, S Ohm, L Olivera-Nieto, E de Ona Wilhelmi, M Ostrowski, S Panny, M Panter, RD Parsons, G Peron, B Peyaud, Q Piel, S Pita, V Poireau, A Priyana Noel, DA Prokhorov, H Prokoph, G Pühlhofer, M Punch, A Quirrenbach, S Raab, R Rauth, P Reichherzer, A Reimer, O Reimer, Q Remy, M Renaud, B Reville, F Rieger, L Rinchiuso, C Romoli, G Rowell, B Rudak, H Rueda Ricarte, E Ruiz-Velasco, V Sahakian, S Sailer, H Salzmann, DA Sanchez, A Santangelo, M Sasaki, J Schäfer, F Schüssler, HM Schutte, U Schwanke, M Seglar-Arroyo, M Senniappan, AS Seyffert, N Shafi, JNS Shapopi, K Shiningayamwe, R Simoni, A Sinha, H Sol, H Spackman, A Specovius, S Spencer, M Spir-Jacob, L Stawarz, L Sun, R Steenkamp, C Stegmann, S Steinmassl, C Steppa, T Takahashi, T Tanaka, T Tavernier, AM Taylor, R Terrier, JHE Thiersen, C Thorpe-Morgan, D Tiziani, M Tluczykont, L Tomankova, C Trichard, M Tsirou, N Tsuji, R Tuffs, Y Uchiyama, DJ van der Walt, C van Eldik, C van Rensburg, B van Soelen, G Vasileiadis, J Veh, C Venter, P Vincent, J Vink, HJ Völk, Z Wadiasingh, SJ Wagner, J Watson, F Werner, R White, A Wierzcholska, P deWilt, Yu Wun Wong, H Yassin, A Yusafzai, M Zacharias, R Zanin, D Zargaryan, AA Zdziarski, A Zech, SJ Zhu, J Zorn, S Zouari, N Żywucka
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Turbulent transport of impurities in 3D devices

Nuclear Fusion IOP Publishing 61:11 (2021) 116019

Authors:

Jm Garcia-Regana, M Barnes, I Calvo, A Gonzalez-Jerez, H Thienpondt, E Sanchez, Fi Parra, Da St-Onge

Abstract:

The evidence of a large diffusive turbulent contribution to the radial impurity transport in Wendelstein 7-X (W7-X) plasmas has been experimentally inferred during the first campaigns and numerically confirmed by means of gyrokinetic simulations with the code stella. In general, the absence of strong impurity accumulation during the initial W7-X campaigns is attributed to this diffusive term. Given the large variety of possible stellarator configurations, in the present work the diffusive contribution is also calculated in other stellarator plasmas. In particular, a numerical cross-device comparison is presented, where the diffusion (D) and convection (V) coefficients of carbon and iron impurities produced by ion-temperature-gradient (ITG) turbulence are obtained. The simulations have been performed for the helias W7-X, the heliotron LHD, the heliac TJ-II and the quasi-axisymmetric stellarator NCSX at the radial position r/a = 0.75. The results show that, although the size of D and V can differ across the four devices, inward convection is found for all of them. For W7-X, TJ-II and NCSX the two coefficients are comparable and the turbulent peaking factor is surprisingly similar. In LHD, appreciably weaker diffusive and convective impurity transport and significantly larger turbulent peaking factor, in comparison with the other three stellarators, are predicted. All this suggests that ITG turbulence, although not strongly, would lead to negative impurity density gradients in stellarators. Then, considering mixed ITG/trapped electron mode (TEM) turbulence for the specific case of W7-X, it has been quantitatively assessed to what degree pellet fueled reduced turbulence scenarios feature reduced turbulent transport of impurities as well. The results for trace iron impurities show that, although their turbulent transport is not entirely suppressed, a significant reduction of the convection and a stronger decrease of the diffusion term are found. Although the diffusion is still above neoclassical levels, the neoclassical convection would gain under such conditions a greater specific weight on the dynamics of impurities in comparison with standard ECRH scenarios without pellet fueling.
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Search for Relativistic Magnetic Monopoles with Eight Years of IceCube Data

(2021)

Authors:

IceCube Collaboration, R Abbasi, M Ackermann, J Adams, JA Aguilar, M Ahlers, M Ahrens, C Alispach, AA Alves, NM Amin, R An, K Andeen, T Anderson, G Anton, C Argüelles, Y Ashida, S Axani, X Bai, A Balagopal V., A Barbano, SW Barwick, B Bastian, V Basu, S Baur, R Bay, JJ Beatty, K-H Becker, J Becker Tjus, C Bellenghi, S BenZvi, D Berley, E Bernardini, DZ Besson, G Binder, D Bindig, E Blaufuss, S Blot, M Boddenberg, F Bontempo, J Borowka, S Böser, O Botner, J Böttcher, E Bourbeau, F Bradascio, J Braun, S Bron, J Brostean-Kaiser, S Browne, A Burgman, RT Burley, RS Busse, MA Campana, EG Carnie-Bronca, C Chen, Z Chen, D Chirkin, K Choi, BA Clark, K Clark, L Classen, A Coleman, GH Collin, JM Conrad, P Coppin, P Correa, DF Cowen, R Cross, C Dappen, P Dave, C De Clercq, JJ DeLaunay, D Delgado López, H Dembinski, K Deoskar, A Desai, P Desiati, KD de Vries, G de Wasseige, M de With, T DeYoung, S Dharani, A Diaz, JC Díaz-Vélez, M Dittmer, H Dujmovic, M Dunkman, MA DuVernois, E Dvorak, T Ehrhardt, P Eller, R Engel, H Erpenbeck, J Evans, PA Evenson, KL Fan, AR Fazely, N Feigl, S Fiedlschuster, AT Fienberg, K Filimonov, C Finley, L Fischer, D Fox, A Franckowiak, E Friedman, A Fritz, P Fürst, TK Gaisser, J Gallagher, E Ganster, A Garcia, S Garrappa, L Gerhardt, A Ghadimi, C Glaser, T Glauch, T Glüsenkamp, JG Gonzalez, S Goswami, D Grant, T Grégoire, S Griswold, M Gündüz, C Günther, C Haack, A Hallgren, R Halliday, L Halve, F Halzen, M Ha Minh, K Hanson, J Hardin, AA Harnisch, A Haungs, S Hauser, D Hebecker, K Helbing, F Henningsen, EC Hettinger, S Hickford, J Hignight, C Hill, GC Hill, KD Hoffman, R Hoffmann, T Hoinka, B Hokanson-Fasig, K Hoshina, F Huang, M Huber, T Huber, K Hultqvist, M Hünnefeld, R Hussain, S In, N Iovine, A Ishihara, M Jansson, GS Japaridze, M Jeong, M Jin, BJP Jones, D Kang, W Kang, X Kang, A Kappes, D Kappesser, T Karg, M Karl, A Karle, U Katz, M Kauer, M Kellermann, JL Kelley, A Kheirandish, K Kin, T Kintscher, J Kiryluk, SR Klein, R Koirala, H Kolanoski, T Kontrimas, L Köpke, C Kopper, S Kopper, DJ Koskinen, P Koundal, M Kovacevich, M Kowalski, T Kozynets, E Kun, N Kurahashi, N Lad, C Lagunas Gualda, JL Lanfranchi, MJ Larson, F Lauber, JP Lazar, JW Lee, K Leonard, A Leszczyńska, Y Li, M Lincetto, QR Liu, M Liubarska, E Lohfink, CJ Lozano Mariscal, L Lu, F Lucarelli, A Ludwig, W Luszczak, Y Lyu, WY Ma, J Madsen, KBM Mahn, Y Makino, S Mancina, IC Mariş, R Maruyama, K Mase, T McElroy, F McNally, JV Mead, K Meagher, S Mechbal, A Medina, M Meier, S Meighen-Berger, J Micallef, D Mockler, T Montaruli, RW Moore, R Morse, M Moulai, R Naab, R Nagai, U Naumann, J Necker, LV Nguyen, H Niederhausen, MU Nisa, SC Nowicki, A Obertacke Pollmann, M Oehler, B Oeyen, A Olivas, E O'Sullivan, H Pandya, DV Pankova, N Park, GK Parker, EN Paudel, L Paul, C Pérez de los Heros, L Peters, J Peterson, S Philippen, D Pieloth, S Pieper, M Pittermann, A Pizzuto, M Plum, Y Popovych, A Porcelli, M Prado Rodriguez, PB Price, B Pries, GT Przybylski, C Raab, A Raissi, M Rameez, K Rawlins, IC Rea, A Rehman, P Reichherzer, R Reimann, G Renzi, E Resconi, S Reusch, W Rhode, M Richman, B Riedel, EJ Roberts, S Robertson, G Roellinghoff, M Rongen, C Rott, T Ruhe, D Ryckbosch, D Rysewyk Cantu, I Safa, J Saffer, SE Sanchez Herrera, A Sandrock, J Sandroos, M Santander, S Sarkar, S Sarkar, K Satalecka, M Scharf, M Schaufel, H Schieler, S Schindler, P Schlunder, T Schmidt, A Schneider, J Schneider, FG Schröder, L Schumacher, G Schwefer, S Sclafani, D Seckel, S Seunarine, A Sharma, S Shefali, M Silva, B Skrzypek, B Smithers, R Snihur, J Soedingrekso, D Soldin, C Spannfellner, GM Spiczak, C Spiering, J Stachurska, M Stamatikos, T Stanev, R Stein, J Stettner, A Steuer, T Stezelberger, T Stürwald, T Stuttard, GW Sullivan, I Taboada, F Tenholt, S Ter-Antonyan, S Tilav, F Tischbein, K Tollefson, L Tomankova, C Tönnis, S Toscano, D Tosi, A Trettin, M Tselengidou, CF Tung, A Turcati, R Turcotte, CF Turley, JP Twagirayezu, B Ty, MA Unland Elorrieta, N Valtonen-Mattila, J Vandenbroucke, N van Eijndhoven, D Vannerom, J van Santen, S Verpoest, C Walck, TB Watson, C Weaver, P Weigel, A Weindl, MJ Weiss, J Weldert, C Wendt, J Werthebach, M Weyrauch, N Whitehorn, CH Wiebusch, DR Williams, M Wolf, K Woschnagg, G Wrede, J Wulff, XW Xu, JP Yanez, S Yoshida, S Yu, T Yuan, Z Zhang, P Zhelnin
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Observation of the gamma-ray binary HESS J0632+057 with the H.E.S.S., MAGIC, and VERITAS telescopes

(2021)

Authors:

CB Adams, W Benbow, A Brill, JH Buckley, M Capasso, AJ Chromey, M Errando, A Falcone, KA Farrell, Q Feng, JP Finley, G Foote, L Fortson, A Furniss, A Gent, GH Gillanders, C Giuri, O Gueta, D Hanna, T Hassan, O Hervet, J Holder, B Hona, TB Humensky, W Jin, P Kaaret, M Kertzman, D Kieda, TK Kleiner, F Krennrich, S Kumar, MJ Lang, M Lundy, G Maier, CE McGrath, P Moriarty, R Mukherjee, D Nieto, M Nievas-Rosillo, S O'Brien, RA Ong, AN Otte, N Park, S Patel, K Pfrang, A Pichel, M Pohl, RR Prado, J Quinn, K Ragan, PT Reynolds, D Ribeiro, E Roache, AC Rovero, JL Ryan, M Santander, S Schlenstedt, GH Sembroski, R Shang, D Tak, VV Vassiliev, A Weinstein, DA Williams, TJ Williamson, VA Acciari, S Ansoldi, LA Antonelli, A Arbet Engels, M Artero, K Asano, D Baack, A Babić, A Baquero, U Barres de Almeida, JA Barrio, I Batković, J Becerra González, W Bednarek, L Bellizzi, E Bernardini, M Bernardos, A Berti, J Besenrieder, W Bhattacharyya, C Bigongiari, A Biland, O Blanch, H Bökenkamp, G Bonnol, Ž Bošnjak, G Busetto, R Carosi, G Ceribella, M Cerruti, Y Chai, A Chilingarian, S Cikota, SM Colak, E Colombo, JL Contreras, J Cortina, S Covino, G D'Amico, V D'Elia, P Da Vela, F Dazzi, A De Angelis, B De Lotto, M Delfino, J Delgado, C Delgado Mendez, D Depaoli, F Di Pierro, L Di Venere, E Do Souto Espiñeira, D Dominis Prester, A Donini, D Dorner, M Doro, D Elsaesser, V Fallah Ramazani, A Fattorini, MV Fonseca, L Font, C Fruck, S Fukami, Y Fukazawa, RJ García López, M Garczarczyk, S Gasparyan, M Gaug, N Giglietto, F Giordano, P Gliwny, N Godinović, JG Green, D Green, D Hadasch, A Hahn, L Heckmann, J Herrera, J Hoang, D Hrupec, M Hütten, T Inada, K Ishio, Y Iwamura, I Jiménez Martínez, J Jormanainen, L Jouvin, M Karjalainen, D Kerszberg, Y Kobayashi, H Kubo, J Kushida, A Lamastra, D Lelas, F Leone, E Lindfors, L Linhoff, S Lombardi, F Longo, R López-Coto, M López-Moya, A López-Oramas, S Loporchio, B Machado de Oliveira Fraga, C Maggio, P Majumdar, M Makariev, M Mallamaci, G Maneva, M Manganaro, K Mannheim, L Maraschi, M Mariotti, M Martínez, D Mazin, S Menchiari, S Mender, S Mićanović, D Miceli, T Miener, JM Miranda, R Mirzoyan, E Molina, A Moralejo, D Morcuende, V Moreno, E Moretti, T Nakamori, L Nava, V Neustroev, C Nigro, K Nilsson, K Nishijima, K Noda S Nozaki, Y Ohtani, T Oka, J Otero-Santos, S Paiano, M Palatiello, D Paneque, R Paoletti, JM Paredes, L Pavletić, P Peñil, M Persic, M Pihet, PG Prada Moroni, E Prandini, C Priyadarshi, I Puljak, W Rhode, M Ribó, J Rico, C Righi, A Rugliancich, L Saha, N Sahakyan, T Saito, S Sakurai, K Satalecka, FG Saturni, B Schleicher, K Schmidt, T Schweizer, J Sitarek, I Šnidarić, D Sobczynska A Spolon, A Stamerra, J Strišković, D Strom, M Strzys, Y Suda, T Surić, M Takahashi, R Takeishi, F Tavecchio, P Temnikov, T Terzić, M Teshima, L Tosti, S Truzzi, A Tutone, S Ubach, J van Scherpenberg, G Vanzo, M Vazquez Acosta, S Ventura, V Verguilov, CF Vigorito, V Vitale, I Vovk, M Will, C Wunderlich, T Yamamoto, D Zarić, H Abdalla, F Aharonian, F Ait-Benkhali, O Anguener, C Arcaro, H Ashkar, M Backes, V Barbosa Martins, M Barnard, R Batzofin, Y Becherini, D Berge, K Bernloehr, B Bi, M Boettcher, C Boisson, J Bolmont, M de Bony, M Breuhaus, R Brose, F Brun, T Bulik, S Caroff, S Casanova, T Chand, A Chen, G Cotter, J Damascene Mbarubucyeye, J Devin, A Djannati-Atai, K Egberts, J Ernenwein, S Fegan, A Fiasson, G Fichet de Clairfontaine, G Fontaine, M Fuessling, S Funk, S Gabici, G Giavitto, D Glawion, J Glicenstein, M Grondin, J Hinton, W Hofmann, T Holch, M Holler, D Horns, Z Huang, M Jamrozy, F Jankowsky, V Joshi, I Jung-Richardt, E Kasai, K Katarzynski, B Khelifi, N Komin, K Kosack, D Kostunin, S Le Stum, A Lemiere, J Lenain, F Leuschner, C Levy, T Lohse, A Luashvili, I Lypova, J Mackey, J Majumdar, D Malyshev, V Marandon, P Marchegiani, A Marcowith, G Marti'i-Devesa, R Marx, G Maurin, P Meintjes, A Mitchell, R Moderski, L Mohrmann, A Montanari, E Moulin, J Muller, T Murach, M de Naurois, A Nayerhoda, J Niemiec, A Noel, P O'Brien, S Ohm, L Olivera-Nieto, E de Ona-Wilhelmi, M Ostrowski, S Panny, M Panter, D Parsons, G Peron, V Poireau, D Prokhorov, H Prokoph, G Puehlhofer, M Punch, A Quirrenbach, P Reichherzer, A Reimer, O Reimer, M Renaud, F Rieger, C Romoli, G Rowell, B Rudak, H Rueda Ricarte, E Ruiz Velasco, V Sahakian, S Sailer, H Salzmann, D Sanchez, A Santangelo, M Sasaki, F Schuessler, H Schutte, U Schwanke, M Senniappan, J Shapopi, R Simoni, H Sol, A Specovius, S Spencer, R Steenkamp, S Steinmassl, L Sun, T Takahashi, T Tanaka, R Terrier, N Tsuji, Y Uchiyama, C van Eldik, B van Soelen, J Veh, C Venter, J Vink, S Wagner, R White, A Wierzcholska, YW Wong, M Zacharias, D Zargaryan, A Zdziarski, A Zech, S Zhu, S Zouari, N Zywucka, Y Moritani, DF Torres
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Binaries are softer than they seem: effects of an external potential on the scattering dynamics of binaries

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 508:1 (2021) 190-194

Authors:

Yonadav Barry Ginat, Hagai B Perets
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