Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Rafferty, David"'
Autor:
Savini, Federica, Bonafede, Annalisa, Brueggen, Marcus, Rafferty, David, Shimwell, Timothy, Botteon, Andrea, Brunetti, Gianfranco, Intema, Huib, Wilber, Amanda, Cassano, Rossella, Vazza, Franco, van Weeren, Reinout, Cuciti, Virginia, De Gasperin, Francesco, Roettgering, Huub, Sommer, Martin, Birzan, Laura, Drabent, Alexander
Centrally located diffuse radio emission has been observed in both merging and non-merging galaxy clusters. Depending on their morphology and size, we distinguish between giant radio haloes, which occur predominantly in merging clusters, and mini hal
Externí odkaz:
http://arxiv.org/abs/1811.08410
Autor:
Wilber, Amanda, Brüggen, Marcus, Bonafede, Annalisa, Rafferty, David, Shimwell, Timothy W., van Weeren, Reinout J., Akamatsu, Hiroki, Botteon, Andrea, Savini, Federica, Intema, Huib, Heino, Lennart, Cuciti, Virginia, Cassano, Rossella, Brunetti, Gianfranco, Röttgering, Huub J. A., de Gasperin, Francesco
Massive, merging galaxy clusters often host giant, diffuse radio sources that arise from shocks and turbulence; hence, radio observations can be useful for determining the merger state of a cluster. In preparation for a larger study, we selected thre
Externí odkaz:
http://arxiv.org/abs/1811.07929
First evidence of diffuse ultra-steep-spectrum radio emission surrounding the cool core of a cluster
Autor:
Savini, Federica, Bonafede, Annalisa, Brueggen, Marcus, van Weeren, Reinout, Brunetti, Gianfranco, Intema, Huib, Botteon, Andrea, Shimwell, Timothy, Wilber, Amanda, Rafferty, David, Giacintucci, Simona, Cassano, Rossella, Cuciti, Virginia, de Gasperin, Francesco, Roettgering, Huub, Hoeft, Matthias, White, Glenn
Diffuse synchrotron radio emission from cosmic-ray electrons is observed at the center of a number of galaxy clusters. These sources can be classified either as giant radio halos, which occur in merging clusters, or as mini halos, which are found onl
Externí odkaz:
http://arxiv.org/abs/1805.01900
Autor:
Snios, Bradford, Nulsen, Paul E. J., Wise, Michael W., de Vries, Martijn, Birkinshaw, Mark, Worrall, Diana M., Duffy, Ryan T., Kraft, Ralph P., McNamara, Brian R., Carilli, Chris, Croston, Judith H., Edge, Alastair C., Godfrey, Leith E. H., Hardcastle, Martin J., Harris, Daniel E., Laing, Robert A., Mathews, William G., McKean, John P., Perley, Richard A., Rafferty, David A., Young, Andrew J.
We use 2.0 Msec of Chandra observations to investigate the cocoon shocks of Cygnus A and some implications for its lobes and jet. Measured shock Mach numbers vary in the range 1.18-1.66 around the cocoon. We estimate a total outburst energy of $\sime
Externí odkaz:
http://arxiv.org/abs/1802.10106
Autor:
Wilber, Amanda, Brüggen, Marcus, Bonafede, Annalisa, Rafferty, David, Savini, Federica, Shimwell, Timothy, van Weeren, Reinout, Botteon, Andrea, Cassano, Rossella, Brunetti, Gianfranco, De Gasperin, Francesco, Wittor, Denis, Hoeft, Matthias, Birzan, Laura
Merging galaxy clusters produce low Mach number shocks in the intracluster medium. These shocks can accelerate electrons to relativistic energies that are detectable at radio frequencies. MACS J0744.9+3927 is a massive ($M_{500} = (11.8 \pm 2.8) \tim
Externí odkaz:
http://arxiv.org/abs/1802.06791
Autor:
Savini, Federica, Bonafede, Annalisa, Brüggen, Marcus, Wilber, Amanda, Harwood, Jeremy J., Murgia, Matteo, Shimwell, Timothy, Rafferty, David, Shulevski, Aleksandar, Brienza, Marisa, Hardcastle, Martin J., Morganti, Raffaella, Röttgering, Huub, Clarke, Alex O., de Gasperin, Francesco, van Weeren, Reinout, Best, Philip N., Botteon, Andrea, Brunetti, Gianfranco, Cassano, Rossella
Feedback by radio-loud active galactic nuclei (AGN) in galaxy groups is not fully understood. Open questions include the duty cycle of the AGN, the spatial extent of the radio lobes, the effect they have on the intragroup medium, and the fate of the
Externí odkaz:
http://arxiv.org/abs/1711.01273
Autor:
Rafferty, David A.
We present an analysis of star formation, cooling, and feedback in 61 galaxies at the cores of galaxy clusters. A subsample of 33 of these systems possesses cavities in the intracluster medium (ICM) inflated by radio jets emanating from their active
Externí odkaz:
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1186765820
Autor:
Nandra, Kirpal, Barret, Didier, Barcons, Xavier, Fabian, Andy, Herder, Jan-Willem den, Piro, Luigi, Watson, Mike, Adami, Christophe, Aird, James, Afonso, Jose Manuel, Alexander, Dave, Argiroffi, Costanza, Amati, Lorenzo, Arnaud, Monique, Atteia, Jean-Luc, Audard, Marc, Badenes, Carles, Ballet, Jean, Ballo, Lucia, Bamba, Aya, Bhardwaj, Anil, Battistelli, Elia Stefano, Becker, Werner, De Becker, Michaël, Behar, Ehud, Bianchi, Stefano, Biffi, Veronica, Bîrzan, Laura, Bocchino, Fabrizio, Bogdanov, Slavko, Boirin, Laurence, Boller, Thomas, Borgani, Stefano, Borm, Katharina, Bouché, Nicolas, Bourdin, Hervé, Bower, Richard, Braito, Valentina, Branchini, Enzo, Branduardi-Raymont, Graziella, Bregman, Joel, Brenneman, Laura, Brightman, Murray, Brüggen, Marcus, Buchner, Johannes, Bulbul, Esra, Brusa, Marcella, Bursa, Michal, Caccianiga, Alessandro, Cackett, Ed, Campana, Sergio, Cappelluti, Nico, Cappi, Massimo, Carrera, Francisco, Ceballos, Maite, Christensen, Finn, Chu, You-Hua, Churazov, Eugene, Clerc, Nicolas, Corbel, Stephane, Corral, Amalia, Comastri, Andrea, Costantini, Elisa, Croston, Judith, Dadina, Mauro, D'Ai, Antonino, Decourchelle, Anne, Della Ceca, Roberto, Dennerl, Konrad, Dolag, Klaus, Done, Chris, Dovciak, Michal, Drake, Jeremy, Eckert, Dominique, Edge, Alastair, Ettori, Stefano, Ezoe, Yuichiro, Feigelson, Eric, Fender, Rob, Feruglio, Chiara, Finoguenov, Alexis, Fiore, Fabrizio, Galeazzi, Massimiliano, Gallagher, Sarah, Gandhi, Poshak, Gaspari, Massimo, Gastaldello, Fabio, Georgakakis, Antonis, Georgantopoulos, Ioannis, Gilfanov, Marat, Gitti, Myriam, Gladstone, Randy, Goosmann, Rene, Gosset, Eric, Grosso, Nicolas, Guedel, Manuel, Guerrero, Martin, Haberl, Frank, Hardcastle, Martin, Heinz, Sebastian, Herrero, Almudena Alonso, Hervé, Anthony, Holmstrom, Mats, Iwasawa, Kazushi, Jonker, Peter, Kaastra, Jelle, Kara, Erin, Karas, Vladimir, Kastner, Joel, King, Andrew, Kosenko, Daria, Koutroumpa, Dimita, Kraft, Ralph, Kreykenbohm, Ingo, Lallement, Rosine, Lanzuisi, Giorgio, Lee, J., Lemoine-Goumard, Marianne, Lobban, Andrew, Lodato, Giuseppe, Lovisari, Lorenzo, Lotti, Simone, McCharthy, Ian, McNamara, Brian, Maggio, Antonio, Maiolino, Roberto, De Marco, Barbara, de Martino, Domitilla, Mateos, Silvia, Matt, Giorgio, Maughan, Ben, Mazzotta, Pasquale, Mendez, Mariano, Merloni, Andrea, Micela, Giuseppina, Miceli, Marco, Mignani, Robert, Miller, Jon, Miniutti, Giovanni, Molendi, Silvano, Montez, Rodolfo, Moretti, Alberto, Motch, Christian, Nazé, Yaël, Nevalainen, Jukka, Nicastro, Fabrizio, Nulsen, Paul, Ohashi, Takaya, O'Brien, Paul, Osborne, Julian, Oskinova, Lida, Pacaud, Florian, Paerels, Frederik, Page, Mat, Papadakis, Iossif, Pareschi, Giovanni, Petre, Robert, Petrucci, Pierre-Olivier, Piconcelli, Enrico, Pillitteri, Ignazio, Pinto, C., de Plaa, Jelle, Pointecouteau, Etienne, Ponman, Trevor, Ponti, Gabriele, Porquet, Delphine, Pounds, Ken, Pratt, Gabriel, Predehl, Peter, Proga, Daniel, Psaltis, Dimitrios, Rafferty, David, Ramos-Ceja, Miriam, Ranalli, Piero, Rasia, Elena, Rau, Arne, Rauw, Gregor, Rea, Nanda, Read, Andy, Reeves, James, Reiprich, Thomas, Renaud, Matthieu, Reynolds, Chris, Risaliti, Guido, Rodriguez, Jerome, Hidalgo, Paola Rodriguez, Roncarelli, Mauro, Rosario, David, Rossetti, Mariachiara, Rozanska, Agata, Rovilos, Emmanouil, Salvaterra, Ruben, Salvato, Mara, Di Salvo, Tiziana, Sanders, Jeremy, Sanz-Forcada, Jorge, Schawinski, Kevin, Schaye, Joop, Schwope, Axel, Sciortino, Salvatore, Severgnini, Paola, Shankar, Francesco, Sijacki, Debora, Sim, Stuart, Schmid, Christian, Smith, Randall, Steiner, Andrew, Stelzer, Beate, Stewart, Gordon, Strohmayer, Tod, Strüder, Lothar, Sun, Ming, Takei, Yoh, Tatischeff, V., Tiengo, Andreas, Tombesi, Francesco, Trinchieri, Ginevra, Tsuru, T. G., Ud-Doula, Asif, Ursino, Eugenio, Valencic, Lynne, Vanzella, Eros, Vaughan, Simon, Vignali, Cristian, Vink, Jacco, Vito, Fabio, Volonteri, Marta, Wang, Daniel, Webb, Natalie, Willingale, Richard, Wilms, Joern, Wise, Michael, Worrall, Diana, Young, Andrew, Zampieri, Luca, Zand, Jean In't, Zane, Silvia, Zezas, Andreas, Zhang, Yuying, Zhuravleva, Irina
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of two key questions in astrophysics: 1) How does ordinary matter assemble
Externí odkaz:
http://arxiv.org/abs/1306.2307