Observation of inverse Compton emission from a long $\gamma$-ray burst

(2020)

Authors:

VA Acciari, S Ansoldi, LA Antonelli, A Arbet Engels, D Baack, A Babić, B Banerjee, U Barres de Almeida, JA Barrio, J Becerra González, W Bednarek, L Bellizzi, E Bernardini, A Berti, J Besenrieder, W Bhattacharyya, C Bigongiari, A Biland, O Blanch, G Bonnoli, Ž Bošnjak, G Busetto, R Carosi, G Ceribella, Y Chai, A Chilingaryan, S Cikota, SM Colak, U Colin, E Colombo, JL Contreras, J Cortina, S Covino, V D'Elia, P Da Vela, F Dazzi, A De Angelis, B De Lotto, M Delfino, J Delgado, 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, G Ferrara, D Fidalgo, L Foffano, MV Fonseca, L Font, C Fruck, S Fukami, RJ García López, M Garczarczyk, S Gasparyan, M Gaug, N Giglietto, F Giordano, N Godinović, D Green, D Guberman, D Hadasch, A Hahn, J Herrera, J Hoang, D Hrupec, M Hütten, T Inada, S Inoue, K Ishio, Y Iwamura, L Jouvin, D Kerszberg, H Kubo, J Kushida, A Lamastra, D Lelas, F Leone, E Lindfors, S Lombardi, F Longo, M López, R López-Coto, 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 Mićanović, D Miceli, M Minev, JM Miranda, R Mirzoyan, E Molina, A Moralejo, D Morcuende, V Moreno, E Moretti, P Munar-Adrover, V Neustroev, C Nigro, K Nilsson, D Ninci, K Nishijima, K Noda, L Nogués, S Nozaki, S Paiano, M Palatiello, D Paneque, R Paoletti, JM Paredes, P Peñil, M Peresano, M Persic, PG Prada Moroni, E Prandini, I Puljak, W Rhode, M Ribó, J Rico, C Righi, A Rugliancich, L Saha, N Sahakyan, T Saito, S Sakurai, K Satalecka, K Schmidt, T Schweizer, J Sitarek, I Šnidarić, D Sobczynska, A Somero, A Stamerra, D Strom, M Strzys, Y Suda, T Surić, M Takahashi, F Tavecchio, P Temnikov, T Terzić, M Teshima, N Torres-Albà, L Tosti, V Vagelli, J van Scherpenberg, G Vanzo, M Vazquez Acosta, CF Vigorito, V Vitale, I Vovk, M Will, D Zarić, L Nava, P Veres, PN Bhat, MS Briggs, WH Cleveland, R Hamburg, CM Hui, B Mailyan, RD Preece, O Roberts, A von Kienlin, CA Wilson-Hodge, D Kocevski, M Arimoto, D Tak, K Asano, M Axelsson, G Barbiellini, E Bissaldi, F Fana Dirirsa, R Gill, J Granot, J McEnery, S Razzaque, F Piron, JL Racusin, DJ Thompson, S Campana, MG Bernardini, NPM Kuin, MH Siegel, S Bradley Cenko, P O'Brien, M Capalbi, A D'Aì, M De Pasquale, J Gropp, N Klingler, JP Osborne, M Perri, R Starling, G Tagliaferri, A Tohuvavohu, A Ursi, M Tavani, M Cardillo, C Casentini, G Piano, Y Evangelista, F Verrecchia, C Pittori, F Lucarelli, A Bulgarelli, N Parmiggiani, GE Anderson, JP Anderson, G Bernardi, J Bolmer, MD Caballero-García, IM Carrasco, A Castellón, N Castro Segura, AJ Castro-Tirado, SV Cherukuri, AM Cockeram, P D'Avanzo, A Di Dato, R Diretse, RP Fender, E Fernández-García, JPU Fynbo, AS Fruchter, J Greiner, M Gromadzki, KE Heintz, I Heywood, AJ van der Horst, Y-D Hu, C Inserra, L Izzo, V Jaiswal, P Jakobsson, J Japelj, E Kankare, DA Kann, C Kouveliotou, S Klose, AJ Levan, XY Li, S Lotti, K Maguire, DB Malesani, I Manulis, M Marongiu, S Martin, A Melandri, M Michałowski, JCA Miller-Jones, K Misra, A Moin, KP Mooley, S Nasri, M Nicholl, A Noschese, G Novara, SB Pandey, E Peretti, CJ Pérez del Pulgar, MA Pérez-Torres, DA Perley, L Piro, F Ragosta, L Resmi, R Ricci, A Rossi, R Sánchez-Ramírez, J Selsing, S Schulze, SJ Smartt, IA Smith, VV Sokolov, J Stevens, NR Tanvir, CC Thóne, A Tiengo, E Tremou, E Troja, A de Ugarte Postigo, SD Vergani, M Wieringa, PA Woudt, D Xu, O Yaron, DR Young

The variable radio counterpart of Swift J1858.6-0814

ArXiv 2006.06425 (2020)

Authors:

J van den Eijnden, N Degenaar, TD Russell, DJK Buisson, D Altamirano, M Armas Padilla, A Bahramian, N Castro Segura, FA Fogantini, CO Heinke, T Maccarone, D Maitra, JCA Miller-Jones, T Muñoz-Darias, M Özbey Arabacı, DM Russell, AW Shaw, G Sivakoff, AJ Tetarenko, F Vincentelli, R Wijnands

On the relative importance of hadronic emission processes along the jet axis of Active Galactic Nuclei

(2020)

Authors:

Mario R Hoerbe, Paul J Morris, Garret Cotter, Julia Becker Tjus

ASASSN-15lh: a TDE about a maximally rotating 109 M⊙ black hole

Monthly Notices of the Royal Astronomical Society: Letters Oxford University Press 497:1 (2020) L13-L18

Authors:

Andrew Mummery, Steven A Balbus

Abstract:

We model the light curves of the novel and extremely luminous transient ASASSN-15lh at nine different frequencies, from infrared to ultraviolet photon energies, as an evolving relativistic disc produced in the aftermath of a tidal disruption event (TDE). Good fits to all nine light curves are simultaneously obtained when Macc ≃ 0.07 M⊙ is accreted on to a black hole of mass M ≃ 109 M⊙ and near-maximal rotation a/rg = 0.99. The best-fitting black hole mass is consistent with a number of existing estimates from galactic scaling relationships. If confirmed, our results represent the detection of one of the most massive rapidly spinning black holes to date, and are strong evidence for a TDE origin for ASASSN-15lh. This would be the first TDE to be observed in the disc-dominated state at optical and infrared frequencies.

An outflow powers the optical rise of the nearby, fast-evolving tidal disruption event AT2019qiz

(2020)

Authors:

M Nicholl, T Wevers, SR Oates, KD Alexander, G Leloudas, F Onori, A Jerkstrand, S Gomez, S Campana, I Arcavi, P Charalampopoulos, M Gromadzki, N Ihanec, PG Jonker, A Lawrence, I Mandel, S Schulze, P Short, J Burke, C McCully, D Hiramatsu, DA Howell, C Pellegrino, H Abbot, JP Anderson, E Berger, PK Blanchard, G Cannizzaro, T-W Chen, M Dennefeld, L Galbany, S Gonzalez-Gaitan, G Hosseinzadeh, C Inserra, I Irani, P Kuin, T Muller-Bravo, J Pineda, NP Ross, R Roy, SJ Smartt, KW Smith, B Tucker, L Wyrzykowski, DR Young