Zobrazeno 1 - 10
of 227
pro vyhledávání: '"Giovannini, Gabriele"'
Autor:
Krezinger, Máté, Baldini, Giovanni, Giroletti, Marcello, Sbarrato, Tullia, Ghisellini, Gabriele, Giovannini, Gabriele, An, Tao, Gabányi, Krisztina É., Frey, Sándor
Over the past two decades, our knowledge of the high-redshift (z > 5) radio quasars has expanded, thanks to dedicated high-resolution very long baseline interferometry (VLBI) observations. Distant quasars provide unique information about the formatio
Externí odkaz:
http://arxiv.org/abs/2406.05192
Autor:
Cui, Yuzhu, Hada, Kazuhiro, Kawashima, Tomohisa, Kino, Motoki, Lin, Weikang, Mizuno, Yosuke, Ro, Hyunwook, Honma, Mareki, Yi, Kunwoo, Yu, Jintao, Park, Jongho, Jiang, Wu, Shen, Zhiqiang, Kravchenko, Evgeniya, Algaba, Juan-Carlos, Cheng, Xiaopeng, Cho, Ilje, Giovannini, Gabriele, Giroletti, Marcello, Jung, Taehyun, Lu, Ru-Sen, Niinuma, Kotaro, Oh, Junghwan, Ohsuga, Ken, Sawada-Satoh, Satoko, Sohn, Bong Won, Takahashi, Hiroyuki R., Takamura, Mieko, Tazaki, Fumie, Trippe, Sascha, Wajima, Kiyoaki, Akiyama, Kazunori, An, Tao, Asada, Keiichi, Buttaccio, Salvatore, Byun, Do-Young, Cui, Lang, Hagiwara, Yoshiaki, Hirota, Tomoya, Hodgson, Jeffrey, Kawaguchi, Noriyuki, Kim, Jae-Young, Lee, Sang-Sung, Lee, Jee Won, Lee, Jeong Ae, Maccaferri, Giuseppe, Melis, Andrea, Melnikov, Alexey, Migoni, Carlo, Oh, Se-Jin, Sugiyama, Koichiro, Wang, Xuezheng, Zhang, Yingkang, Chen, Zhong, Hwang, Ju-Yeon, Jung, Dong-Kyu, Kim, Hyo-Ryoung, Kim, Jeong-Sook, Kobayashi, Hideyuki, Li, Bin, Li, Guanghui, Li, Xiaofei, Liu, Zhiyong, Liu, Qinghui, Liu, Xiang, Oh, Chung-Sik, Oyama, Tomoaki, Roh, Duk-Gyoo, Wang, Jinqing, Wang, Na, Wang, Shiqiang, Xia, Bo, Yan, Hao, Yeom, Jae-Hwan, Yonekura, Yoshinori, Yuan, Jianping, Zhang, Hua, Zhao, Rongbing, Zhong, Weiye
Publikováno v:
2023, Nature, 621, 711-715
The nearby radio galaxy M87 offers a unique opportunity to explore the connections between the central supermassive black hole and relativistic jets. Previous studies of the inner region of M87 revealed a wide opening angle for the jet originating ne
Externí odkaz:
http://arxiv.org/abs/2310.09015
Autor:
Lu, Ru-Sen, Asada, Keiichi, Krichbaum, Thomas P., Park, Jongho, Tazaki, Fumie, Pu, Hung-Yi, Nakamura, Masanori, Lobanov, Andrei, Hada, Kazuhiro, Akiyama, Kazunori, Kim, Jae-Young, Marti-Vidal, Ivan, Gómez, José L., Kawashima, Tomohisa, Yuan, Feng, Ros, Eduardo, Alef, Walter, Britzen, Silke, Bremer, Michael, Broderick, Avery E., Doi, Akihiro, Giovannini, Gabriele, Giroletti, Marcello, Ho, Paul T. P., Honma, Mareki, Hughes, David H., Inoue, Makoto, Jiang, Wu, Kino, Motoki, Koyama, Shoko, Lindqvist, Michael, Liu, Jun, Marscher, Alan P., Matsushita, Satoki, Nagai, Hiroshi, Rottmann, Helge, Savolainen, Tuomas, Schuster, Karl-Friedrich, Shen, Zhi-Qiang, de Vicente, Pablo, Walker, R. Craig, Yang, Hai, Zensus, J. Anton, Algaba, Juan Carlos, Allardi, Alexander, Bach, Uwe, Berthold, Ryan, Bintley, Dan, Byun, Do-Young, Casadio, Carolina, Chang, Shu-Hao, Chang, Chih-Cheng, Chang, Song-Chu, Chen, Chung-Chen, Chen, Ming-Tang, Chilson, Ryan, Chuter, Tim C., Conway, John, Crew, Geoffrey B., Dempsey, Jessica T., Dornbusch, Sven, Faber, Aaron, Friberg, Per, García, Javier González, Garrido, Miguel Gómez, Han, Chih-Chiang, Han, Kuo-Chang, Hasegawa, Yutaka, Herrero-Illana, Ruben, Huang, Yau-De, Huang, Chih-Wei L., Impellizzeri, Violette, Jiang, Homin, Jinchi, Hao, Jung, Taehyun, Kallunki, Juha, Kirves, Petri, Kimura, Kimihiro, Koay, Jun Yi, Koch, Patrick M., Kramer, Carsten, Kraus, Alex, Kubo, Derek, Kuo, Cheng-Yu, Li, Chao-Te, Lin, Lupin Chun-Che, Liu, Ching-Tang, Liu, Kuan-Yu, Lo, Wen-Ping, Lu, Li-Ming, MacDonald, Nicholas, Martin-Cocher, Pierre, Messias, Hugo, Meyer-Zhao, Zheng, Minter, Anthony, Nair, Dhanya G., Nishioka, Hiroaki, Norton, Timothy J., Nystrom, George, Ogawa, Hideo, Oshiro, Peter, Patel, Nimesh A, Pen, Ue-Li, Pidopryhora, Yurii, Pradel, Nicolas, Raffin, Philippe A., Rao, Ramprasad, Ruiz, Ignacio, Sanchez, Salvador, Shaw, Paul, Snow, William, Sridharan, T. K., Srinivasan, Ranjani, Tercero, Belén, Torne, Pablo, Traianou, Efthalia, Wagner, Jan, Walther, Craig, Wei, Ta-Shun, Yang, Jun, Yu, Chen-Yu
The nearby radio galaxy M87 is a prime target for studying black hole accretion and jet formation^{1,2}. Event Horizon Telescope observations of M87 in 2017, at a wavelength of 1.3 mm, revealed a ring-like structure, which was interpreted as gravitat
Externí odkaz:
http://arxiv.org/abs/2304.13252
Autor:
Giovannini, Gabriele, Cui, Yuzhu, Hada, Kazuhiro, Yi, Kunwoo, Ro, Hyunwook, Sohn, Bong Won, Takamura, Mieko, Buttaccio, Salvatore, D'Ammando, Filippo, Giroletti, Marcello, Hagiwara, Yoshiaki, Kino, Motoki, Kravchenko, Evgeniya, Maccaferri, Giuseppe, Melnikov, Alexey, Niinuma, Kota ro, Orienti, Monica, Wajima, Kiyoaki, Akiyama, Kazunori, Doi, Akihiro, Byun, Do-Young, Hirota, Tomoya, Honma, Mareki, Jung, Taehyun, Kobayashi, Hideyuki, Koyama, Shoko, Melis, Andrea, Migoni, Carlo, Murata, Yasuhiro, Nagai, Hiroshi, Sawada-Satoh, Satoko, Stagni, Matteo
Publikováno v:
Galaxies 2023 11(2) 49
We present here the East Asia to Italy Nearly Global VLBI (EATING VLBI) project. How this project started and the evolution of the international collaboration between Korean, Japanese, and Italian researchers to study compact sources with VLBI observ
Externí odkaz:
http://arxiv.org/abs/2303.14518
Autor:
Radiconi, Federico, Vacca, Valentina, Battistelli, Elia, Bonafede, Annalisa, Capalbo, Valentina, Devlin, Mark J., Di Mascolo, Luca, Feretti, Luigina, Gallardo, Patricio A., Gill, Ajay, Giovannini, Gabriele, Govoni, Federica, Guan, Yilun, Hilton, Matt, Hincks, Adam D., Hughes, John P., Iacobelli, Marco, Isopi, Giovanni, Loi, Francesca, Moodley, Kavilan, Mroczkowski, Tony, Murgia, Matteo, Orrù, Emanuela, Paladino, Rosita, Partridge, Bruce, Sarazin, Craig L., Scherer, Jack Orlowski, Sifón, Cristóbal, Vargas, Cristian, Vazza, Franco, Wollack, Edward J.
We measure the local correlation between radio emission and Compton-$y$ signal across two galaxy clusters, Abell~399 and Abell~401, using maps from the Low-Frequency Array (LOFAR) and the Atacama Cosmology Telescope (ACT) + \Planck. These datasets al
Externí odkaz:
http://arxiv.org/abs/2206.04697
Autor:
Vacca, Valentina, Govoni, Federica, Murgia, Matteo, Perley, Richard A., Feretti, Luigina, Giovannini, Gabriele, Carretti, Ettore, Gastaldello, Fabio, Cova, Filippo, Marchegiani, Paolo, Battistelli, Elia, Boschin, Walter, Ensslin, Torsten A., Girardi, Marisa, Loi, Francesca, Radiconi, Federico
Large-scale magnetic fields reveal themselves through diffuse synchrotron sources observed in galaxy clusters such as radio halos. Total intensity filaments of these sources have been observed in polarization as well, but only in three radio halos ou
Externí odkaz:
http://arxiv.org/abs/2206.03402
Autor:
Vacca, Valentina, Shimwell, Timothy, Perley, Richard A., Govoni, Federica, Murgia, Matteo, Feretti, Luigina, Giovannini, Gabriele, Loi, Francesca, Carretti, Ettore, Cova, Filippo, Gastaldello, Fabio, Girardi, Marisa, Ensslin, Torsten, Akamatsu, Hiroki, Bonafede, Annalisa, Bonnassieux, Etienne, Boschin, Walter, Botteon, Andrea, Brunetti, Gianfranco, Brueggen, Marcus, Finoguenov, Alexis, Hoang, Duy, Iacobelli, Marco, Orru', Emanuela, Paladino, Rosita, Roettgering, Huub, van Weeren, Reinout, Vitello, Fabio, Wittor, Denis
The galaxy cluster Abell 523 (A523) hosts an extended diffuse synchrotron source historically classified as a radio halo. Its radio power at 1.4 GHz makes it one of the most significant outliers in the scaling relations between observables derived fr
Externí odkaz:
http://arxiv.org/abs/2201.12207
We present the results from high-resolution observations carried out with the eMERLIN UK-array and the European VLBI network (EVN) for a sample of 15 FR0s, i.e. compact core-dominated radio sources associated with nearby early-type galaxies (ETGs) wh
Externí odkaz:
http://arxiv.org/abs/2111.09899
Autor:
Kino, Motoki, Niinuma, Kotaro, Kawakatu, Nozomu, Nagai, Hiroshi, Giovannini, Gabriele, Orienti, Monica, Wajima, Kiyoaki, D'Ammando, Filippo, Hada, Kazuhiro, Giroletti, Marcello, Gurwell, Mark
We report multi-epoch Very Long Baseline Interferometric (VLBI) observations of the compact radio lobe in the radio galaxy 3C84 (NGC1275) during 2016 - 2020. The image sequence of 3C84 reveals that the hotspot in the radio lobe showed the one-year lo
Externí odkaz:
http://arxiv.org/abs/2110.11082
Publikováno v:
A&A 655, A95 (2021)
We report on the JVLA observations of three high redshift Active Galactic Nuclei (AGN), having a black hole mass estimated to be among the largest known. Two of them, SDSS J0100+2802 and SDSS J0306+1853 at redshift 6.326 and 5.363 respectively, are r
Externí odkaz:
http://arxiv.org/abs/2109.08156