Zobrazeno 1 - 10
of 367
pro vyhledávání: '"Marchesi Stefano"'
Autor:
Marchesi, Stefano, Iuliano, Antonio, Prandini, Elisa, Da Vela, Paolo, Doro, Michele, Loporchio, Serena, Miceli, Davide, Righi, Chiara, Zanin, Roberta, Bronzini, Ettore, Vignali, Cristian
We present the results of a multi-wavelength study of blazars selected from the 5th ROMABZCAT catalog. We selected from this sample a subsample of 2435 objects having at least one counterpart in one of the three main archival X-ray catalogs, which is
Externí odkaz:
http://arxiv.org/abs/2410.18278
Autor:
Boorman, Peter G., Gandhi, Poshak, Buchner, Johannes, Stern, Daniel, Ricci, Claudio, Baloković, Mislav, Asmus, Daniel, Harrison, Fiona A., Svoboda, Jiří, Greenwell, Claire, Koss, Michael, Alexander, David M., Annuar, Adlyka, Bauer, Franz, Brandt, William N., Brightman, Murray, Panessa, Francesca, Chen, Chien-Ting J., Farrah, Duncan, Forster, Karl, Grefenstette, Brian, Hönig, Sebastian F., Hill, Adam B., Kammoun, Elias, Lansbury, George, Lanz, Lauranne, LaMassa, Stephanie, Madsen, Kristin, Marchesi, Stefano, Middleton, Matthew, Mingo, Beatriz, Parker, Michael L., Treister, Ezequiel, Ueda, Yoshihiro, Urry, C. Megan, Zappacosta, Luca
Hard X-ray-selected samples of Active Galactic Nuclei (AGN) provide one of the cleanest views of supermassive black hole accretion, but are biased against objects obscured by Compton-thick gas column densities of $N_{\rm H}$ $>$ 10$^{24}$ cm$^{-2}$.
Externí odkaz:
http://arxiv.org/abs/2410.07339
Autor:
Foord, Adi, Civano, Francesca, Comerford, Julia M., Elvis, Martin, Fabbiano, Giuseppina, Liu, Tingting, Lusso, Elisabeta, Marchesi, Stefano, Mezcua, Mar, Muller-Sanchez, Francisco, Nevin, Rebecca, Nyland, Kristina
We present a multi-wavelength analysis of MCG+11-11-032, a nearby AGN with the unique classification of both a binary and a dual AGN candidate. With new Chandra observations we aim to resolve any dual AGN system via imaging data, and search for signs
Externí odkaz:
http://arxiv.org/abs/2409.03839
Autor:
Zhao, Xiurui, Marchesi, Stefano, Ajello, Marco, Civano, Francesca, Gilli, Roberto, Lanzuisi, Giorgio, López, Iván E., Silver, Ross, Torres-Albà, Nuria, Boorman, Peter G., Pizzetti, Andrealuna
We present a comprehensive X-ray analysis and spectral energy distribution (SED) fitting of WISEA J171419.96+602724.6, an extremely luminous type 2 quasar at $z$ = 2.99. The source was suggested as a candidate Compton-thick (column density N$_{\rm H}
Externí odkaz:
http://arxiv.org/abs/2409.01960
Autor:
Peca, Alessandro, Cappelluti, Nico, LaMassa, Stephanie, Urry, C. Megan, Moscetti, Massimo, Marchesi, Stefano, Sanders, David, Auge, Connor, Ghosh, Aritra, Ananna, Tonima Tasnim, Torres-Albà, Núria, Treister, Ezequiel
We present an enhanced version of the publicly-available Stripe 82X catalog (S82-XL), featuring a comprehensive set of 22,737 unique X-ray point sources identified with a significance $\gtrsim 4\sigma$. This catalog is four times larger than the orig
Externí odkaz:
http://arxiv.org/abs/2407.09617
Autor:
Suh, Hyewon, Scharwächter, Julia, Farina, Emanuele Paolo, Loiacono, Federica, Lanzuisi, Giorgio, Hasinger, Günther, Marchesi, Stefano, Mezcua, Mar, Decarli, Roberto, Lemaux, Brian C., Volonteri, Marta, Civano, Francesca, Yi, Sukyoung K., Han, San, Rawlings, Mark, Hung, Denise
Recent James Webb Space Telescope (JWST) observations have revealed a surprisingly abundant population of faint, dusty active galactic nuclei (AGNs) at z~4-7. Together with the presence of supermassive black holes (SMBHs) at z>6, this raises question
Externí odkaz:
http://arxiv.org/abs/2405.05333
Autor:
Greenwell, Claire L., Klindt, Lizelke, Lansbury, George B., Rosario, David J., Alexander, David M., Aird, James, Stern, Daniel, Forster, Karl, Koss, Michael J., Bauer, Franz E., Ricci, Claudio, Tomsick, John, Brandt, William N., Connor, Thomas, Boorman, Peter G., Annuar, Adlyka, Ballantyne, David R., Chen, Chien-Ting, Civano, Francesca, Comastri, Andrea, Fawcett, Victoria A., Fornasini, Francesca M., Gandhi, Poshak, Harrison, Fiona, Heida, Marianne, Hickox, Ryan, Kammoun, Elias S., Lanz, Lauranne, Marchesi, Stefano, Noirot, Gaël, Romero-Colmenero, Encarni, Treister, Ezequiel, Urry, C. Megan, Väisänen, Petri, van Soelen, Brian
We present a catalog of hard X-ray serendipitous sources detected in the first 80 months of observations by the Nuclear Spectroscopic Telescope Array (NuSTAR). The NuSTAR serendipitous survey 80-month (NSS80) catalog has an unprecedented $\sim$ 62 Ms
Externí odkaz:
http://arxiv.org/abs/2404.17637
Autor:
Fukumura, Keigo, Mehdipour, Missagh, Behar, Ehud, Shrader, Chris, Dadina, Mauro, Kazanas, Demosthenes, Marchesi, Stefano, Tombesi, Francesco
Publikováno v:
revised and under 2nd review for ApJ, 2024
X-ray obscuration of active galactic nuclei (AGNs) is considered in the context of ionized winds of stratified structure launched from accretion disks. We argue that a Compton-thick layer of a large-scale disk wind can obscure continuum X-rays and al
Externí odkaz:
http://arxiv.org/abs/2403.07086
Autor:
Zhao, Xiurui, Civano, Francesca, Willmer, Christopher N. A., Bonoli, Silvia, Chen, Chien-Ting, Creech, Samantha, Dupke, Renato, Fornasini, Francesca M., Jansen, Rolf A., Kikuta, Satoshi, Koekemoer, Anton M., Laha, Sibasish, Marchesi, Stefano, O'Brien, Rosalia, Silver, Ross, Willner, S. P., Windhorst, Rogier A., Yan, Haojing, Alcaniz, Jailson, Benitez, Narciso, Carneiro, Saulo, Cenarro, Javier, Cristóbal-Hornillos, David, Ederoclite, Alessandro, Hernán-Caballero, Antonio, López-Sanjuan, Carlos, Marín-Franch, Antonio, de Oliveira, Claudia Mendes, Moles, Mariano, Sodré Jr., Laerte, Taylor, Keith, Varela, Jesús, Ramió, Héctor Vázquez
Publikováno v:
ApJ 965, 188 (2024)
We present the second NuSTAR and XMM-Newton extragalactic survey of the JWST North Ecliptic Pole (NEP) Time-Domain Field (TDF). The first NuSTAR NEP-TDF survey (Zhao et al. 2021) had 681 ks total exposure time executed in NuSTAR cycle 5, in 2019 and
Externí odkaz:
http://arxiv.org/abs/2402.13508
Autor:
Mazzolari, Giovanni, Gilli, Roberto, Brusa, Marcella, Mignoli, Marco, Vito, Fabio, Prandoni, Isabella, Marchesi, Stefano, Chiaberge, Marco, Lanzuisi, Giorgio, D'Amato, Quirino, Comastri, Andrea, Vignali, Cristian, Iwasawa, Kazushi, Norman, Colin
Publikováno v:
A&A 687, A120 (2024)
In this work, we study the AGN radio detection effectiveness in the major deep extragalactic surveys, considering different AGN obscuration levels, redshift, and AGN bolometric luminosities. We particularly focus on comparing their radio and X-ray de
Externí odkaz:
http://arxiv.org/abs/2402.00109