Autor: Gu, Minfeng - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Identifying the secondary jet in the RadioAstron image of OJ 287
Autorzy:: Berdyugin, Andrei V.
Nilsson, Kari
Jelínek, Martin
Matsumoto, Katsura
Mugrauer, Markus
Uemura, Makoto
Zhang, Zhongli
Ogloza, Waldemar
Kishore, Shubham
Štrobl, Jan
Ciprini, Stefano
Drozdz, Marek
Zejmo, Michal
Reichart, Daniel E.
Kouprianov, Vladimir V.
Hudec, Rene
Pursimo, Tapio
Susobhanan, Abhimanyu
Valtonen, Mauri J.
Sadun, Alberto
Dey, Lankeswar
Gu, Minfeng
Gupta, Alok C.
Wiita, Paul J.
Davidson, James W.
Imazawa, Ryo
Gopakumar, Achamveedu
Nakaoka, Tatsuya
Zoła, Stanisław
Opis:: The 136 yr long optical light curve of OJ 287 is explained by a binary black hole model where the secondary is in a 12 yr orbit around the primary. Impacts of the secondary on the accretion disk of the primary generate a series of optical flares that follow a quasi-Keplerian relativistic mathematical model. The orientation of the binary in space is determined from the behavior of the primary jet. Here, we ask how the jet of the secondary black hole projects onto the sky plane. Assuming that the jet is initially perpendicular to the disk, and that it is ballistic, we follow its evolution after the Lorentz transformation to the observer’s frame. Since the orbital speed of the secondary is of the order of one-tenth of the speed of light, the result is a change in the jet direction by more than a radian during an orbital cycle. We match the theoretical jet line with the recent 12 μas resolution RadioAstron map of OJ 287 and determine the only free parameter of the problem, the apparent speed of the jet relative to speed of light. It turns out that the Doppler factor of the jet, δ ∼ 5, is much lower than in the primary jet. Besides following a unique shape of the jet path, the secondary jet is also distinguished by a different spectral shape than in the primary jet. The present result on the spectral shape agrees with the huge optical flare of 2021 November 12, also arising from the secondary jet.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 2.

Tytuł:: Broadband multi-wavelength properties of M87 during the 2017 Event Horizon Telescope campaign
Autorzy:: Saturni, F. G.
Trippe, Sascha
Yonekura, Yoshinori
Cui, Y. -Z.
Fuentes, Antonio
Šnidarić, I.
Pühlhofer, G.
Schuster, Karl-Friedrich
Artero, M.
Angüner, E. O.
Vovk, I.
Liu, Kuo
Joshi, V.
Zhao, Shan-Shan
Berti, A.
Pueschel, E.
Temnikov, P.
Wang, Na
Ostrowski, Michał
Roache, E.
Carlstrom, John E.
Kobayashi, Y.
Huber, D.
Kluźniak, W.
Hughes, David H.
Fegan, S.
Lamastra, A.
Oakes, L.
Prado, R. R.
Jiménez-Rosales, Alejandra
Neri, Roberto
Senniappan, M.
Ribeiro, D.
Mares, A.
Depaoli, D.
Alef, Walter
Curyło, M.
Baghmanyan, V.
Noel, Angel
Emery, G.
Patel, Nimesh
Jankowsky, D.
Mizuno, Yosuke
Meintjes, P. J.
Lenain, J. -P.
Park, J.
Bronzwaer, Thomas
Sánchez-Arguelles, David
Moore, C.
Holler, M.
Kieda, D.
Lemoine-Goumard, M.
Nigro, C.
de Almeida, U. Barres
Jormanainen, J.
Anczarski, J.
Kino, M.
Kettenis, Mark
Tetarenko, Alexandra J.
Vitale, V.
Wagner, S. J.
Kuo, Cheng-Yu
Soohoo, Jason
Rinchiuso, L.
Liu, Xiang
Mejías, Alejandro Mus
Contreras, J. L.
Rudak, B.
Hahn, J.
Porth, Oliver
Pötzl, Felix M.
Roelofs, Freek
Rygl, Kazi L. J.
Young, Ken
Covino, S.
Feng, Q.
Chen, Ming-Tang
Nakamura, Masanori
Cotter, G.
Kastendieck, M. A.
Sembroski, G. H.
Palatiello, M.
Paoletti, R.
O'Brien, P.
Savchenko, S. S.
Brun, F.
Kramer, Carsten
Werner, F.
Baczko, Anne-Kathrin
Menchiari, S.
Rulten, C.
Hughes, G.
Verguilov, V.
Hinton, J. A.
Barbosa Martins, V.
Kravchenko, E. V.
Minev, M.
Sobczynska, D.
Lico, Rocco
Gentaz, Olivier
Dempsey, Jessica
Broderick, Avery E.
Barnard, M.
Rhode, W.
Prokhorov, D. A.
Plambeck, Richard
Aharonian, F.
Moriarty, P.
de Clairfontaine, G. Fichet
Terrier, R.
Rawlings, Mark G.
Komossa, S.
Steenkamp, R.
Moderski, R.
Ramakrishnan, V.
Taylor, A. M.
Kajiwara, Y.
Mićanović, S.
Longo, F.
Gent, A.
Boyce, Hope
Giuri, C.
Zacharias, M.
Nayerhoda, A.
Kushida, J.
Peron, G.
Yuan, Feng
Wajima, Kiyoaki
Haggard, D.
Jung, Taehyun
Lang, M. J.
Kostunin, D.
Hahn, A.
Hadasch, D.
Terzić, T.
Lypova, I.
Sailer, S.
Steinmassl, S.
Bouman, Katherine L.
Donini, A.
Reynolds, P. T.
Mizuno, Izumi
Kasai, E.
Roshanineshat, Arash
Khangulyan, D.
Honma, Mareki
Murach, T.
Janssen, Michael
Benbow, W.
Colombo, E.
Ubach, S.
Neilsen, J.
Cui, Lang
Christiansen, J. L.
van Rossum, Daniel R.
Mohamed, M.
Tilanus, Remo P. J.
Kertzman, M.
Blanch, O.
Reynolds, M. T.
Majumdar, J.
Rezzolla, Luciano
Ong, R. A.
Schutte, H. M.
Rowell, G.
Marx, R.
Azulay, Rebecca
Principe, G.
Sanchez, D. A.
di Venere, L.
Delgado Mendez, C.
Asada, K.
Gold, Roman
Tiziani, D.
Hrupec, D.
Meyer, M.
Oka, T.
Otero-Santos, J.
Moroni, P. G. Prada
Ribó, M.
Will, M.
Damascene Mbarubucyeye, J.
Molina, E.
Farah, Joseph
Barrio, J. A.
Benkhali, F. Ait
Weinstein, A.
Gurwell, Mark
Ansoldi, S.
Tavernier, T.
Jannuzi, Buell T.
Mackey, J.
Ho, Paul
Dazzi, F.
Eichhorn, F.
Holder, J.
Seglar-Arroyo, M.
Biland, A.
Karami, Mansour
Inoue, Makoto
Font, L.
Daniel, M. K.
Reichherzer, P.
Zorn, J.
Baloković, M.
Patel, S.
Nilsson, K.
Li, Zhiyuan
Babić, A.
Kramer, Michael
Heckmann, L.
Godinović, N.
Iwamura, Y.
Righi, C.
Schloerb, F. Peter
Farrell, K. A.
Fruck, C.
Lobanov, Andrei P.
Poireau, V.
Majumdar, P.
Titus, Michael
Zensus, J. Anton
Kim, J. -Y.
Matsushita, Satoki
García, Roberto
Kaur, A.
D'Elia, V.
Sasada, M.
Caroff, S.
Watson, J.
Ward-Thompson, Derek
Mirzoyan, R.
Menten, Karl M.
Ho, Luis C.
Mender, S.
Tsirou, M.
Fonseca, M. V.
Takahashi, T.
Bernardini, E.
Eatough, Ralph P.
Vazquez Acosta, M.
Hoang, J.
Nishijima, K.
Ortiz-León, Gisela N.
Brill, A.
Santangelo, A.
Gottschall, D.
Mukherjee, R.
Jankowsky, F.
Okino, Hiroki
Bigongiari, C.
Davids, I. D.
Falcone, A. D.
Wadiasingh, Z.
Herrera, J.
Green, J. G.
Dexter, Jason
Acciari, V. A.
Ricarte, Angelo
Giroletti, M.
Williamson, T. J.
Einecke, S.
Preciado-López, Jorge A.
Pavletić, L.
Devin, J.
Panny, S.
Wu, Qingwen
da Vela, P.
Kim, Dong-Jin
Steppa, C.
Pu, Hung-Yi
Ashkar, H.
Kaaret, P.
Bryan, M.
Haupt, M.
Moriyama, Kotaro
Sahakyan, N.
van Rensburg, C.
Armstrong, T.
Grondin, M. -H.
Ikeda, Shiro
Glawion, D.
Pen, Ue-Li
Algaba, J. C.
Gómez, José L.
Wielgus, Maciek
Zhu, S. J.
Li, Yan-Rong
Lundy, M.
Oyama, Tomoaki
Baquero, A.
Brinkerink, Christiaan D.
Shiningayamwe, K.
Johnson, Michael D.
Sánchez, Salvador
Simoni, R.
Ceribella, G.
Gu, Minfeng
Remy, Q.
Ni, Chunchong
Musoke, Gibwa
Zouari, S.
Ripperda, Bart
Lelas, D.
Machado de Oliveira Fraga, B.
Miener, T.
Falcke, Heino
Ball, David
Gabici, S.
Prandini, E.
Brissenden, Roger
Marcowith, A.
Galison, Peter
Paredes, J. M.
Bower, Geoffrey C.
Nagai, Hiroshi
Medeiros, Lia
Perennes, C.
de Angelis, A.
Narayan, Ramesh
Small, Des
Giordano, F.
Rugliancich, A.
Williams, D. A.
Georgiev, Boris
Fromm, Christian M.
Schwanke, U.
Niederwanger, F.
Büchele, M.
Gómez-Ruiz, Arturo I.
Koay, Jun Yi
Quinn, J.
Savolainen, Tuomas
Pesce, Dominic W.
Sun, He
Punch, M.
Nievas-Rosillo, M.
Sakurai, S.
Lindfors, E.
Antonelli, L. A.
Peyaud, B.
Broguiere, Dominique
Mohrmann, L.
Sun, L.
Maraschi, L.
Benson, Bradford A.
Moreno, V.
Cortina, J.
Besenrieder, J.
Rogers, Alan
Desvignes, Gregory
Hoischen, C.
Chilingarian, A.
Morcuende, D.
Moran, James M.
Suda, Y.
Ros, Eduardo
Kubo, H.
Zanin, R.
Karjalainen, M.
Glicenstein, J. F.
Żywucka, N.
Young, André
Yusafzai, A.
Surić, T.
Ventura, S.
Carosi, A.
Niinuma, Kotaro
Nakashima, K.
Huang, Chih-Wei L.
di Pierro, F.
Jamrozy, Marek
Popstefanija, Aleksandar
Leone, F.
Tomankova, L.
Humensky, T. B.
Chan, Chi-Kwan
Odaka, H.
Doeleman, Sheperd S.
Pita, S.
Vasileiadis, G.
Gliwny, P.
Seyffert, A. S.
Satalecka, K.
Chatterjee, Shami
Delgado, J.
Matthews, Lynn D.
Natarajan, Iniyan
Tosti, L.
White, R.
Tiede, Paul
Dominis Prester, D.
Özel, Feryal
Giunti, L.
Maneva, G.
Reimer, A.
Giavitto, G.
de Naurois, M.
Sohn, Bong Won
Sitarek, J.
Dorner, D.
Cordes, James M.
van Bemmel, Ilse
Wharton, Robert
Dyks, J.
Chandra, S.
Reimer, O.
Torne, Pablo
Funk, S.
Cikota, S.
Shang, R.
Lonsdale, Colin
Sahakian, V.
Deane, Roger
Shafi, N.
Green, D.
Egberts, K.
Trichard, C.
Pohl, M.
Friberg, Per
Lamanna, G.
Feijen, K.
Schwemmer, S.
Vigorito, C. F.
Davelaar, Jordy
Lu, R. -S.
Giglietto, N.
Jorstad, S.
Liuzzo, Elisabetta
Martí-Vidal, Iván
Noutsos, Aristeidis
Jin, W.
Blundell, Raymond
Paneque, D.
Dewilt, P.
Chael, Andrew
Konno, R.
Busetto, G.
van Soelen, B.
Rao, Ramprasad
Tuffs, R.
Toma, Kenji
Moscibrodzka, Monika
Brun, P.
Spencer, S.
Delfino, M.
Davies, J.
Boisson, C.
Roy, Alan L.
Ferrara, G.
van der Walt, D. J.
Williamson, K. E.
Ramazani, V. Fallah
Kerszberg, D.
Pfrang, K.
Karuppusamy, Ramesh
Doroshenko, V.
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O'Brien, S.
Liu, Jun
Kreter, M.
Goddi, C.
Jung-Richardt, I.
Nozaki, S.
Kawashima, T.
Katarzyński, K.
Katz, U.
Lucchini, M.
Marchili, Nicola
Dmytriiev, A.
Hirota, Tomoya
Barrett, John
Rieger, F.
Doro, M.
Cerruti, M.
Britzen, Silke
Sasaki, M.
Truzzi, S.
Do Souto Espiñeira, E.
Lo, Wen-Ping
Chand, T.
Prather, Ben
Maier, G.
Niemiec, J.
Yuan, Ye-Fei
Gasparyan, S.
Alberdi, Antxon
Schleicher, B.
Adams, C. B.
Ro, Hyunwook
de Ona Wilhelmi, E.
Manganaro, M.
Backes, M.
Berge, D.
Nathanail, Antonios
Piétu, Vincent
Dirson, L.
Vuillaume, T.
Inoue, S.
de Laurentis, Mariafelicia
Peñil, P.
Khélifi, B.
Engels, A. Arbet
Fortson, L.
Jeter, Britton
Schweizer, T.
Chen, A.
García López, R. J.
Becherini, Y.
Parsons, R. D.
Rico, J.
Marrone, Daniel P.
Stegmann, C.
Jouvin, L.
de Lotto, B.
Marandon, V.
Elsaesser, D.
Rose, Mel
Holch, T. L.
Blackburn, Lindy
Mao, Jirong
Tluczykont, M.
Markoff, S.
Jiménez, I.
Tazaki, Fumie
Keating, G.
Traianou, Efthalia
D'Ammando, F.
Sakai, Nobuyuki
Ragan, K.
Djannati-Ataï, A.
Moulin, E.
Prokoph, H.
Hassan, T.
Martí-Devesa, G.
Tavecchio, F.
Ohm, S.
Zarić, D.
Loporchio, S.
Gallant, Y. A.
Komin, Nu.
Gammie, Charles F.
Neustroev, V.
Palumbo, Daniel C. M.
Santander, M.
Martínez, M.
Chromey, A. J.
Fattorini, A.
Mariotti, M.
Uchiyama, Y.
Bernardos, M.
Marscher, Alan P.
Marchegiani, P.
Barnacka, Anna
Rauth, R.
Younsi, Ziri
López-Coto, R.
Ohtani, Y.
Quirrenbach, A.
Kumar, S.
Vanzo, G.
Klepser, S.
Lee, S. -S.
de Lavergne, M. De Bony
Levy, C.
Noda, K.
Montanari, A.
Kofuji, Yutaro
Völk, H. J.
Nieto, D.
Bednarek, W.
Asano, K.
Takahashi, M.
Wex, Norbert
van Langevelde, Huib Jan
Jiang, Wu
Hecht, Michael H.
Issaoun, Sara
Fish, Vincent L.
López-Oramas, A.
Lindahl, Greg
Bhattacharyya, W.
Shao, Lijing
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Bremer, Michael
Tutone, A.
Crew, Geoffrey B.
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Saito, T.
Müller, Cornelia
Sawada-Satoh, Satoko
Renaud, M.
Muller, J.
Mazin, D.
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Akiyama, Kazunori
Fukami, S.
Inada, T.
Bonnoli, G.
Deil, C.
Koyama, Shoko
Hesper, Ronald
Morris, P.
Piel, Q.
Gaug, M.
Ford, H. Alyson
Bulik, T.
Horns, D.
Koch, Patrick M.
Makariev, M.
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van Scherpenberg, J.
Chesler, Paul M.
Hofmann, W.
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Ruiz-Velasco, E.
Scalici, M.
Strom, D.
Ishio, K.
Vincent, P.
Becerra González, J.
Wardle, John
Bernlöhr, K.
Bellizzi, L.
Lombardi, S.
Kosack, K.
Yoon, Doosoo
Moretti, E.
Romoli, C.
Zdziarski, A. A.
Wunderlich, C.
Christian, Pierre
Lauer, Tod R.
Persic, M.
Wagner, Jan
Spolon, A.
Chai, Y.
Bintley, Dan
Narayanan, Gopal
Specovius, A.
Spir-Jacob, M.
Trent, Tyler
Loinard, Laurent
Nagar, Neil M.
Byun, Do-Young
Anantua, Richard
Chen, Yongjun
Conway, John E.
Ruszczyk, Chet
Weintroub, Jonathan
Lemière, A.
Hervet, O.
Jardin-Blicq, A.
Stawarz, Łukasz
Zargaryan, D.
Huang, Lei
James, David J.
Hada, K.
López-Moya, M.
Bolmont, J.
Sinha, A.
Miranda, J. M.
Lohse, T.
Teshima, M.
Cruz-Osorio, Alejandro
Ryan, J. L.
MacDonald, Nicholas R.
Furniss, A.
Venter, C.
Colak, S. M.
Finley, J. P.
Malyshev, D.
Olivares, Héctor
D'Amico, G.
Breuhaus, M.
Rottmann, Helge
Ndiyavala, H.
Veh, J.
Kim, Jongsoo
Crawford, Thomas M.
Kim, Junhan
Abdalla, H.
Fiasson, A.
Chatterjee, Koushik
Psaltis, Dimitrios
Wong, Yu Wun
Stamerra, A.
Strzys, M.
Priyadarshi, C.
Vink, J.
Capasso, M.
Bošnjak, Ž.
Zhao, Guang-Yao
Garczarczyk, M.
Wierzcholska, A.
Adam, R.
Puljak, I.
Raymond, Alexander W.
Moralejo, A.
Lindqvist, Michael
van Eldik, C.
Carosi, R.
Mannheim, K.
Olivera-Nieto, L.
Bylund, T.
Levis, Aviad
Zech, A.
Fraga-Encinas, Raquel
Arcaro, C.
Miceli, D.
Bi, B.
Boland, Wilfred
Armand, C.
Donath, A.
Baack, D.
Füßling, M.
Fomalont, Ed
Maurin, G.
Krichbaum, T. P.
Fontaine, G.
Richards, G. T.
Shen, Zhiqiang
Ernenwein, J. -P.
Hermann, G.
Schmidt, K.
Wong, George N.
Cho, Ilje
Maggio, C.
Saha, L.
Errando, M.
Hütten, M.
Sol, H.
Panter, M.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 3.

Tytuł:: Evidence of jet activity from the secondary black hole in the OJ 287 binary system
Autorzy:: Berdyugin, Andrei V.
Nilsson, Kari
Valtonen, Mauri J.
Jorstad, Svetlana G.
Jelínek, Martin
Matsumoto, Katsura
Mugrauer, Markus
Zhang, Zhongli
Marscher, Alan P.
Kishore, Shubham
Ogloza, Waldemar
Štrobl, Jan
Ciprini, Stefano
Drozdz, Marek
Zejmo, Michal
Uemura, M.
Reichart, Daniel E.
Kouprianov, Vladimir V.
Nakaoka, T.
Hudec, Rene
Lehto, Harry J.
Pursimo, Tapio
Sadun, Alberto
Minfeng, Gu
Weaver, Z. R.
Dey, Lankeswar
Gupta, Alok C.
Wiita, Paul J.
Davidson, James W.
Imazawa, Ryo
Gopakumar, Achamveedu
Zoła, Stanisław
Opis:: We report the study of a huge optical intraday flare on 2021 November 12 at 2 a.m. UT in the blazar OJ 287. In the binary black hole model, it is associated with an impact of the secondary black hole on the accretion disk of the primary. Our multifrequency observing campaign was set up to search for such a signature of the impact based on a prediction made 8 yr earlier. The first I-band results of the flare have already been reported by Kishore et al. (2024). Here we combine these data with our monitoring in the R-band. There is a big change in the R–I spectral index by 1.0 ± 0.1 between the normal background and the flare, suggesting a new component of radiation. The polarization variation during the rise of the flare suggests the same. The limits on the source size place it most reasonably in the jet of the secondary BH. We then ask why we have not seen this phenomenon before. We show that OJ 287 was never before observed with sufficient sensitivity on the night when the flare should have happened according to the binary model. We also study the probability that this flare is just an oversized example of intraday variability using the Krakow data set of intense monitoring between 2015 and 2023. We find that the occurrence of a flare of this size and rapidity is unlikely. In machine-readable Tables 1 and 2, we give the full orbit-linked historical light curve of OJ 287 as well as the dense monitoring sample of Krakow.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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