Examinando por Autor "Pinto, Ciro"

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Restringido
A dynamic black hole corona in an active galaxy through X-ray reverberation mapping
(Springer Nature Research Journals, 2020-01-20) Alston, W. N.; Fabian, A. C.; Kara, E.; Parker, M. L.; Dovciak, M.; Pinto, Ciro; Jiang, J.; Middleton, M. J.; Miniutti, Giovanni; Walton, D. J.; Wilkins, D. R.; Buisson, D. J.; Caballero García, M. D.; Cackett, E. M.; De Marco, B.; Gallo, L. C.; Lohfink, A. M.; Reynolds, C. S.; Uttley, P.; Young, A. J.; Zogbhi, A.; European Research Council (ERC); Science and Technology Facilities Council (STFC); European Space Agency (ESA); European Commission (EC); Agencia Estatal de Investigación (AEI); 0000-0003-2658-6559; Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
X-ray reverberation echoes are assumed to be produced in the strongly distorted spacetime around accreting supermassive black holes. This signal allows us to spatially map the geometry of the inner accretion flow1,2—a region that cannot yet be spatially resolved by any telescope—and provides a direct measure of the black hole mass and spin. The reverberation timescale is set by the light travel path between the direct emission from a hot X-ray corona and the reprocessed emission from the inner edge of the accretion disk3,4,5,6. However, there is an inherent degeneracy in the reverberation signal between black hole mass, inner disk radius and height of the illuminating corona above the disk. Here we use a long X-ray observation of the highly variable active galaxy IRAS 13224−3809 to track the reverberation signal as the system evolves on timescales of a day7,8. With the inclusion of all the relativistic effects, modelling reveals that the height of the X-ray corona increases with increasing luminosity, providing a dynamic view of the inner accretion region. This simultaneous modelling allows us to break the inherent degeneracies and obtain an independent timing-based estimate for the mass and spin of the black hole. The uncertainty on black hole mass is comparable to the leading optical reverberation method9, making X-ray reverberation a powerful technique, particularly for sources with low optical variability10.
Restringido
Detection of a possible multiphase ultra-fast outflow in IRAS 13349+2438 with NuSTAR and XMM-Newton.
(Oxford Academics: Blackwell Publishing, 2020-08-25) Parker, M. L.; Matzeu, G. A.; Alston, W. N.; Fabian, A. C.; Lobban, Andrew P.; Miniutti, Giovanni; Pinto, Ciro; Santos Lleó, M.; Schartel, N.; European Space Agency (ESA); 0000-0002-5635-5340; 0000-0003-1994-5322; 0000-0003-2658-6559; 0000-0001-5948-8360; 0000-0003-2532-7379; 0000-0002-9378-4072; Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
We present joint NuSTAR and XMM–Newton observations of the bright, variable quasar IRAS 13349+2438. This combined data set shows two clear iron absorption lines at 8 and 9 keV, which are most likely associated with two layers of mildly relativistic blueshifted absorption, with velocities of ∼0.14c and ∼0.27c. We also find strong evidence for a series of Ly α absorption lines at intermediate energies in a stacked XMM–Newton EPIC-pn spectrum, at the same blueshift as the lower velocity iron feature. This is consistent with a scenario where an outflowing wind is radially stratified, so faster, higher ionization material is observed closer to the black hole, and cooler, slower material is seen from streamlines at larger radii.
Acceso Abierto
The athena x-ray integral field unit: a consolidated design for the system requirement review of the preliminary definition phase
(Springer Link, 2022-08-30) Barret, Didier; Albouys, Vincent; Den Herder, Jan-Willem; Piro, Luigi; Cappi, Massimo; Huovelin, Juhani; Kelley, Richard; Mas-Hesse, J. Miguel; Paltani, Stéphane; Rauw, Gregor; Rozanska, Agata; Acero, Fabio; Vera Trallero, Isabel; Grosso, Nicolas; Varnière, Peggy; Genolet, Ludovic; Charles, Ivan; Miniutti, Giovanni; Ullom, Joel; Sato, Kosuke; Bulgarelli, Andrea; Laurent, Philippe; Adami, Christophe; Rigano, Manuela; Langer, Mathieu; Granat, Dolorès; Pinsard, Frederic; Schaye, Joop; Walmsley, Gavin; Woźniak, Grzegorz; Aicardi, Corinne; Perry, James; Dupourqué, Simon; Ledot, Aurélien; Fioretti, Valentina; Surace, Christian; Nicastro, Fabrizio; Sciortino, Salvatore; Jiménez, María; Jolly, Antoine; Bounab, Ayoub; Maussang, Irwin; Smith, Stephen; Clerc, Laurent; Lo Cicero, Ugo; Kiviranta, Mikko; Cavazzuti, Elisabetta; Roelfsema, Peter; Roig, Anton; Medinaceli Villegas, Eduardo; Lesrel, Jean; Boyce, Kevin; Dupieux, Michel; Durkin, Malcom; Argan, Andrea; Pascale, Ramon; Eckert, Dominique; Soucek, Jan; Kammoun, Elias; Bonny, Patrick; Yamaguchi, Hiroya; Auricchio, Natalia; Beaumont, Sophie; Ettori, Stefano; Cucchetti, Edoardo; Pointecouteau, Etienne; Akamatsu, Hiroki; Vidriales, María; Lotti, Simone; Calarco, Simona; Zuchniak, Monika; Merino Alonso, Pablo Eleazar; Kreykenbohm, Ingo; Wakeham, Nicholas; Soto Aguilar, Javier; Vink, Jacco; De Wit, Martin; Silva, Vitor; Kaastra, Jelle; Den Hartog, Roland; Taralli, Emanuele; Clerc, Nicolas; Coleiro, Alexis; Van Leeuwen, Bert-Joost; Guignard, Nicolas; Torrioli, Guido; Ubertini, Pietro; Bernard, Vivian; Miller, Jon; Eiriz, Valvanera; Boreux, Charles; Poyatos Martinez, David; Pratt, Gabriel W.; Molin, Alexeï; Minervini, Gabriele; Le Mer, Isabelle; De Vries, Cor; Yamasaki, Noriko; Goldwurm, Andrea; Coynel, Alexandre; Van Loon, Dennis; Dadina, Mauro; Prouvé, Thomas; Brachet, Frank; Porter, Frederick; Spizzi, Pierre; Jourdan, Thierry; Massonet, Didier; Lyautey, Bertrand; Sciortino, Luisa; Pinto, Ciro; Vibert, Laurent; Simionescu, Aurora; Boutelier, Martin; Roncarelli, Mauro; Julien, Sabine; González, Raoul; Maffei, Bruno; Todaro, Michela; Balado, A.; Ferrando, Philippe; Atienza, R.; Schwander, Denis; Millerioux, Jean-Pierre; Godet, Olivier; Sanisidro, Julien; Bancel, Florian; Vaccaro, Davide; Webb, Natalie; Camus, Thierry; Coriat, Mickael; Carron, Jérôme; Piconcelli, Enrico; Puccetti, Simonetta; Mitsuda, Kazuhisa; Mineo, Teresa; Jaubert, Jean; D'Ai, Antonino; Adam, Thomas; Frericks, Martin; Costantini, Elisa; Janiuk, Agnieszka; Cobo, Beatriz; Ghizzardi, Simona; Gatti, Flavio; Molendi, Silvano; Wise, Michael; Bandler, Simon; Torrejón, José Miguel; Kedziora, Bartosz; Dauser, Thomas; Prêle, Damien; Duband, Lionel; Terrier, Régis; Pajot, François; Daniel, Christophe; Ferrari Barusso, Lorenzo; Mot, Baptiste; Vodopivec, Boris Martin; Giovannini, Elisa; DeNigris, Natalie; Encinas Plaza, José Miguel; Van der Kuur, Jan; González, Manuel; Amato, Roberta; Geoffray, Hervé; Dercksen, Johannes; Pradines, Alice; Rollet, Bertrand; Dubbeldam, Luc; Terrasa, Guilhem; Alcacera Gil, María Ángeles; Maisonnave, Océane; DiPirro, Michael; Monestes, David; Laurenza, Monica; Boorman, Peter; Bozzo, Enrico; Capobianco, Vito; Parot, Yann; D'Andrea, Matteo; Korb, Andrew; Nagayoshi, Kenichiro; Roudil, Gilles; Doumayrou, Eric; Gao, Jian-Rong; Luminari, Alfredo; Khosropanah, Pourya; Gloaguen, Emilie; Branduardi Raymont, Graziella; Peille, Philippe; Gabici, Stefano; Eckart, Megan; Franssen, Philippe; Shinozaki, Keisuke; Gonzalo Melchor, Alejandro; Ptak, Andy; Chervenak, James; Michalski, Lea; Castellani, Florent; Cuttaia, Francesco; Thibert, Tanguy; Hieltjes, Paul; Hurtado, Adolfo Jesus; Fossecave, Hervé; Irwin, Kent; Adams, Joseph; Attard, Anthony; Etcheverry, Christophe; Rioland, Guillaume; Natalucci, Lorenzo; Finoguenov, Alexis; Jacquey, Christian; Barbera, Marco; Barcons, Xavier; Varisco , Salvatore; Mendez, Mariano; Ercolani, Eric; Fernández Sánchez, Miguel; Gastaldello, Fabio; Uslenghi, Michela; Angelinelli, Matteo; Jacques, Lionel; Villa, Fabrizio; Lorenz, Maximilian; Mesnager, Jean-Michel; Durand, Jean Louis; Sakai, Kazuhiro; Decourchelle, Anne; Martin, Sylvain; Berrocal, A.; Finkbeiner, Fred; Wilms, Joern; Reina, M.; Rudnicki, Tomasz; Doriese, William; Nazé, Yaël; Abdoelkariem, Shariefa; D'anca, Fabio; Gant, Florent; Van der Hulst, Paul; Mazzotta, Pasquale; Coeur-Joly, Odile; Añón Cancela, M.; Canourgues, Florent; Fiore, Fabrizio; Raulin, Desi; Noguès, Loïc; Hoogeveen, Ruud; Ravera, Laurent; Callanan, Paul; Cheatom, Oscar; André, Jérôme; Sordet, Michael; Brienza, Daniele; Duval, Jean-Marc; Corcione, Leonardo; Fiocchi, Maria Teresa; Pailot, Damien; Panessa, Francesca; Fioretti, Valentina; Van Weers, Henk; Anvar, Shebli; Parodi, Luigi; Petit, Pascal; De Plaa, Jelle; Kirsch, Christian; Macculi, Claudio; Volpe, Angela; Puccio, Elena; Gómez Elvira, J.; Bonnet, François; Marelli, Lorenzo; Murat, David; Audard, Marc; Jackson, Brian; Colonges, Stéphane; Korpela, Seppo; Webb, Natalie; Laudet, Philippe; Chiarello, Fabio; Ligori, Sebastiano; Montinaro, Nicola; Svoboda, Jiri; Bij de Vaate, Jan Geralt; Blin, Sylvie; Jonker, Peter; Bruijn, Marcel; Ceballos, Maria Teresa; Cardiel, Nicolás; Kilbourne, Caroline; Chaoul, Laurence; Gottardi, Luciano; Gros, Michel; Bonino, Donata; Skup, Konrad; Rodriguez, Louis; Fiorini, Mauro; Ardellier, Florence; Bellouard, Elise; Agencia Estatal de Investigación (AEI); Ministerio de Ciencia e Innovación (MICINN); Centre National D'Etudes Spatiales (CNES); Agenzia Spaziale Italiana (ASI); European Space Agency (ESA)
The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile observatory designed to address the Hot and Energetic Universe science theme, selected in November 2013 by the Survey Science Committee. Based on a large format array of Transition Edge Sensors (TES), it aims to provide spatially resolved X-ray spectroscopy, with a spectral resolution of 2.5 eV (up to 7 keV) over an hexagonal field of view of 5 arc minutes (equivalent diameter). The X-IFU entered its System Requirement Review (SRR) in June 2022, at about the same time when ESA called for an overall X-IFU redesign (including the X-IFU cryostat and the cooling chain), due to an unanticipated cost overrun of Athena. In this paper, after illustrating the breakthrough capabilities of the X-IFU, we describe the instrument as presented at its SRR, browsing through all the subsystems and associated requirements. We then show the instrument budgets, with a particular emphasis on the anticipated budgets of some of its key performance parameters. Finally we briefly discuss on the ongoing key technology demonstration activities, the calibration and the activities foreseen in the X-IFU Instrument Science Center, and touch on communication and outreach activities, the consortium organisation, and finally on the life cycle assessment of X-IFU aiming at minimising the environmental footprint, associated with the development of the instrument. Thanks to the studies conducted so far on X-IFU, it is expected that along the design-to-cost exercise requested by ESA, the X-IFU will maintain flagship capabilities in spatially resolved high resolution X-ray spectroscopy, enabling most of the original X-IFU related scientific objectives of the Athena mission to be retained.