Zobrazeno 1 - 10
of 9 808
pro vyhledávání: '"Signorini, A."'
Autor:
Trefoloni, Bartolomeo, Gilli, Roberto, Lusso, Elisabeta, Marconi, Alessandro, Mazzolari, Giovanni, Nardini, Emanuele, Risaliti, Guido, Signorini, Matilde
A fundamental ingredient in the unified model of active galactic nuclei (AGN) is the obscuring torus, whose innermost, hottest region dominates the near infrared (NIR) emission. Characterising the change in the torus properties and its interplay with
Externí odkaz:
http://arxiv.org/abs/2410.10941
Autor:
Zaidouni, Fatima, Kara, Erin, Kosec, Peter, Mehdipour, Missagh, Rogantini, Daniele, Kriss, Gerard A., Behar, Ehud, Kaastra, Jelle, Barth, Aaron J., Cackett, Edward M., De Rosa, Gisella, Homayouni, Yasaman, Horne, Keith, Landt, Hermine, Arav, Nahum, Bentz, Misty C., Brotherton, Michael S., Bontà, Elena Dalla, Dehghanian, Maryam, Ferland, Gary J., Fian, Carina, Gelbord, Jonathan, Goad, Michael R., Buitrago, Diego H. González, Grier, Catherine J., Hall, Patrick B., Hu, Chen, Ilić, Dragana, Kaspi, Shai, Kochanek, Christopher S., Kovačević, Andjelka B., Kynoch, Daniel, Lewin, Collin, Montano, John, Netzer, Hagai, Neustadt, Jack M. M., Panagiotou, Christos, Partington, Ethan R., Plesha, Rachel, Popović, Luka Č., Proga, Daniel, Storchi-Bergmann, Thaisa, Sanmartim, David, Siebert, Matthew R., Signorini, Matilde, Vestergaard, Marianne, Waters, Tim, Zu, Ying
We present the results of the XMM-Newton and NuSTAR observations taken as part of the ongoing, intensive multi-wavelength monitoring program of the Seyfert 1 galaxy Mrk 817 by the AGN Space Telescope and Optical Reverberation Mapping 2 (AGN STORM 2)
Externí odkaz:
http://arxiv.org/abs/2406.17061
Autor:
Maiolino, Roberto, Risaliti, Guido, Signorini, Matilde, Trefoloni, Bartolomeo, Juodzbalis, Ignas, Scholtz, Jan, Uebler, Hannah, D'Eugenio, Francesco, Carniani, Stefano, Fabian, Andy, Ji, Xihan, Mazzolari, Giovanni, Bertola, Elena, Brusa, Marcella, Bunker, Andrew J., Charlot, Stephane, Comastri, Andrea, Cresci, Giovanni, DeCoursey, Christa Noel, Egami, Eiichi, Fiore, Fabrizio, Gilli, Roberto, Perna, Michele, Tacchella, Sandro, Venturi, Giacomo
We investigate the X-ray properties of a large sample of 71 broad line and narrow line AGN at 2
Externí odkaz:
http://arxiv.org/abs/2405.00504
Autor:
Trefoloni, Bartolomeo, Lusso, Elisabeta, Nardini, Emanuele, Risaliti, Guido, Marconi, Alessandro, Bargiacchi, Giada, Sacchi, Andrea, Signorini, Matilde
Publikováno v:
A&A 689, A109 (2024)
A sample of quasars has been recently assembled to investigate the non-linear relation between their monochromatic luminosities at 2500{\AA}, and 2 keV and to exploit quasars as a new class of standardized candles. The use of this technique for cosmo
Externí odkaz:
http://arxiv.org/abs/2404.07205
Autor:
Signorini, Matilde, Risaliti, Guido, Lusso, Elisabeta, Nardini, Emanuele, Bargiacchi, Giada, Sacchi, Andrea, Trefoloni, Bartolomeo
Publikováno v:
A&A 687, A32 (2024)
A characteristic feature of quasars is the observed non-linear relationship between their monochromatic luminosities at rest-frame 2500 {\AA} and 2 keV. This relationship is evident across all redshifts and luminosities and, due to its non-linearity,
Externí odkaz:
http://arxiv.org/abs/2312.08448
Autor:
Neustadt, Jack M. M., Kochanek, Christopher S., Montano, John, Gelbord, Jonathan, Barth, Aaron J., De Rosa, Gisella, Kriss, Gerard A., Cackett, Edward M., Horne, Keith, Kara, Erin A., Landt, Hermine, Netzer, Hagai, Arav, Nahum, Bentz, Misty C., Bonta, Elena Dalla, Dehghanian, Maryam, Du, Pu, Edelson, Rick, Ferland, Gary J., Fian, Carina, Fischer, Travis, Goad, Michael R., Buitrago, Diego H. Gonzalez, Gorjian, Varoujan, Grier, Catherine J., Hall, Patrick B., Homayouni, Y., Hu, Chen, Ilic, Dragana, Joner, Michael D., Kaastra, Jelle, Kaspi, Shai, Korista, Kirk T., Kovacevic, Andjelka B., Lewin, Collin, Li, Yan-Rong, McHardy, Ian M., Mehdipour, Missagh, Miller, Jake A., Panagiotou, Christos, Partington, Ethan, Plesha, Rachel, Pogge, Richard W., Popovic, Luka C., Proga, Daniel, Storchi-Bergmann, Thaisa, Sanmartim, David, Siebert, Matthew R., Signorini, Matilde, Vestergaard, Marianne, Zaidouni, Fatima, Zu, Ying
We fit the UV/optical lightcurves of the Seyfert 1 galaxy Mrk 817 to produce maps of the accretion disk temperature fluctuations $\delta T$ resolved in time and radius. The $\delta T$ maps are dominated by coherent radial structures that move slowly
Externí odkaz:
http://arxiv.org/abs/2310.01497
Publikováno v:
Geriatrics, Gerontology and Aging, Vol 9, Pp 14-20 (2024)
OBJETIVOS: Pouco se sabe sobre a participação cívica da pessoa idosa no Brasil, por isso propôs-se investigar os fatores associados à participação dos idosos nas eleições presidenciais de 2010. MÉTODOS: Foram analisados os dados do inquéri
Externí odkaz:
https://doaj.org/article/1f1035f1cf4441ec8eec474772dfa817
Autor:
Fabiola Signorini, Giovanni Nattino, Carlotta Rossi, Walter Ageno, Felice Catania, Francesca Cortellaro, Giorgio Costantino, Andrea Duca, Giulia Irene Ghilardi, Stefano Paglia, Paolo Pausilli, Cristiano Perani, Giuseppe Sechi, Guido Bertolini
Publikováno v:
BMC Emergency Medicine, Vol 24, Iss 1, Pp 1-12 (2024)
Abstract Background There is no ubiquitous definition of Emergency Department (ED) crowding and several indicators have been proposed to measure it. The National ED Overcrowding Study (NEDOCS) score is among the most popular, even though it has been
Externí odkaz:
https://doaj.org/article/c72242eb5e0d48ab81da5bd6db764e3e
Autor:
Signorini, Matilde, Risaliti, Guido, Lusso, Elisabeta, Nardini, Emanuele, Bargiacchi, Giada, Sacchi, Andrea, Trefoloni, Bartolomeo
Publikováno v:
A&A 676, A143 (2023)
Context: A non-linear relation between quasar monochromatic luminosities at 2500A and 2 keV holds at all observed redshifts and luminosities, and it has been used to derive quasar distances and to build a Hubble Diagram of quasars. The choice of the
Externí odkaz:
http://arxiv.org/abs/2306.16438
Autor:
Signorini, Matilde, Marchesi, Stefano, Gilli, Roberto, Brusa, Marcella, Comastri, Andrea, D'Amato, Quirino, Iwasawa, Kazushi, Lanzuisi, Giorgio, Mazzolari, Giovanni, Mignoli, Marco, Peca, Alessandro, Prandoni, Isabella, Tozzi, Paolo, Vignali, Cristian, Vito, Fabio, Norman, Colin
Publikováno v:
A&A 676, A49 (2023)
The 500ks Chandra ACIS-I observation of the field around the $z=6.31$ quasar SDSS J1030+0524 is currently the 5th deepest extragalactic X-ray survey. The rich multi-band coverage of the field allowed for an effective identification and redshift deter
Externí odkaz:
http://arxiv.org/abs/2305.13368