Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Vito Fabio"'
Dust-obscured galaxies (DOGs) containing central supermassive black holes (SMBHs) that are rapidly accreting (i.e., having high Eddington ratios, $\lambda_\mathrm{Edd}$) may represent a key phase closest to the peak of both the black-hole and galaxy
Externí odkaz:
http://arxiv.org/abs/2410.20464
Autor:
Napolitano, Lorenzo, Castellano, Marco, Pentericci, Laura, Vignali, Cristian, Gilli, Roberto, Fontana, Adriano, Santini, Paola, Treu, Tommaso, Calabrò, Antonello, Llerena, Mario, Piconcelli, Enrico, Zappacosta, Luca, Mascia, Sara, Bergamini, Pietro, Bakx, Tom J. L. C., Dickinson, Mark, Glazebrook, Karl, Henry, Alaina, Leethochawalit, Nicha, Mazzolari, Giovanni, Merlin, Emiliano, Morishita, Takahiro, Nanayakkara, Themiya, Paris, Diego, Puccetti, Simonetta, Roberts-Borsani, Guido, Ruiz, Sofia Rojas, Vanzella, Eros, Vito, Fabio, Vulcani, Benedetta, Wang, Xin, Yoon, Ilsang, Zavala, Jorge A.
We present JWST/NIRSpec PRISM spectroscopic characterization of GHZ9 at z= 10.145 $\pm$ 0.010, currently the most distant source detected by the Chandra X-ray Observatory. The spectrum reveals several UV high-ionization lines, including CII, SiIV, [N
Externí odkaz:
http://arxiv.org/abs/2410.18763
Autor:
Yu, Zhibo, Brandt, W. N., Zou, Fan, Zhu, Ziyuan, Bauer, Franz E., Cristello, Nathan, Luo, Bin, Ni, Qingling, Vito, Fabio, Xue, Yongquan
Dust-obscured galaxies (DOGs) are enshrouded by dust, and many are believed to host accreting supermassive black holes (SMBHs), which makes them unique objects for probing the coevolution of galaxies and SMBHs. We select and characterize DOGs in the
Externí odkaz:
http://arxiv.org/abs/2410.18190
Autor:
Mazzolari, Giovanni, Scholtz, Jan, Maiolino, Roberto, Gilli, Roberto, Traina, Alberto, López, Ivan E., Übler, Hannah, Trefoloni, Bartolomeo, D'Eugenio, Francesco, Ji, Xihan, Mignoli, Marco, Vito, Fabio, Brusa, Marcella
In this work, we spectroscopically select narrow-line AGN (NLAGN) among the $\sim 300$ publicly available medium-resolution spectra of the CEERS Survey. Using both traditional and newly identified emission line NLAGN diagnostics diagrams, we identifi
Externí odkaz:
http://arxiv.org/abs/2408.15615
We present a focused X-ray and multiwavelength study of the ultraluminous weak-line quasar (WLQ) SDSS J1521+5202, one of the few X-ray weak WLQs that is amenable to basic X-ray spectral and variability investigations. J1521+5202 shows striking X-ray
Externí odkaz:
http://arxiv.org/abs/2408.16060
Autor:
Vito, Fabio, Brandt, William N., Comastri, Andrea, Gilli, Roberto, Ivison, Rob J., Lanzuisi, Giorgio, Lehmer, Bret D., Lopez, Ivan E., Tozzi, Paolo, Vignali, Cristian
Publikováno v:
A&A 689, A130 (2024)
Protoclusters at $z>2$ are gas-rich regions characterized by high star-formation activity. The same physical properties that enhance star formation in protoclusters are also thought to boost the growth of SMBHs. We aim to test this scenario by probin
Externí odkaz:
http://arxiv.org/abs/2406.13005
Autor:
Onorato, Silvia, Hennawi, Joseph F., Schindler, Jan-Torge, Yang, Jinyi, Wang, Feige, Barth, Aaron J., Bañados, Eduardo, Eilers, Anna-Christina, Bosman, Sarah E. I., Davies, Frederick B., Venemans, Bram P., Mazzucchelli, Chiara, Belladitta, Silvia, Vito, Fabio, Farina, Emanuele Paolo, Andika, Irham T., Fan, Xiaohui, Walter, Fabian, Decarli, Roberto, Onoue, Masafusa, Nanni, Riccardo
We present optical and near-infrared (NIR) spectroscopic observations for a sample of $45$ quasars at $6.50 < z \leq 7.64$ with absolute magnitudes at $1450$ {\AA} in the range $-28.82 \leq M_{1450} \leq -24.13$ and their composite spectrum. The medi
Externí odkaz:
http://arxiv.org/abs/2406.07612
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
Overdense regions at high redshift ($z \gtrsim 2$) are perfect laboratories to study the relations between environment and SMBH growth, and the AGN feedback processes on the surrounding galaxies and diffuse gas. In this white paper, we discuss how AX
Externí odkaz:
http://arxiv.org/abs/2311.08466
Autor:
Cappelluti, Nico, Foord, Adi, Marchesi, Stefano, Pacucci, Fabio, Ricarte, Angelo, Habouzit, Melanie, Vito, Fabio, Powell, Meredith, Koss, Michael, Mushotzky, Richard, AGN-SWG, the AXIS
The nature and origin of supermassive black holes (SMBHs) remain an open matter of debate within the scientific community. While various theoretical scenarios have been proposed, each with specific observational signatures, the lack of sufficiently s
Externí odkaz:
http://arxiv.org/abs/2311.07669