Zobrazeno 1 - 10
of 244
pro vyhledávání: '"CAPETTI, Alessandro"'
We explore the radio properties of powerful (rest-frame luminosity $\gtrsim10^{28}$ W Hz$^{-1}$ at 500 MHz) high-redshift (z > 3.5) quasars. The aim of this study is to gain a better understanding of radio-loud sources at the epoch when they reach th
Externí odkaz:
http://arxiv.org/abs/2407.01288
Autor:
Puga, Miguel Coloma, Balmaverde, Barbara, Capetti, Alessandro, Almeida, Cristina Ramos, Massaro, Francesco, Venturi, Giacomo
The study of ionized gas kinematics in high-z active galaxies plays a key part in our understanding of galactic evolution, in an age where nuclear activity was widespread and star formation close to its peak. We present a study of TXS 0952-217, a rad
Externí odkaz:
http://arxiv.org/abs/2405.09884
The question of whether and how the properties of radio galaxies (RGs) are connected with the large-scale environment is still an open issue. For this work we measured the large-scale galaxies' density around RGs present in the revised Third Cambridg
Externí odkaz:
http://arxiv.org/abs/2402.13859
We perform three-dimensional numerical simulations of magnetized relativistic jets propagating in a uniform density environment in order to study the effect of the entrainment and the consequent deceleration, extending a previous work in which magnet
Externí odkaz:
http://arxiv.org/abs/2402.04707
Autor:
Puga, Miguel Coloma, Balmaverde, Barbara, Capetti, Alessandro, Massaro, Francesco, Almeida, Cristina Ramos, Miley, George, Gilli, Roberto, Marconi, Alessandro
Spatially resolved observations of AGN host galaxies undergoing feedback processes are one of the most relevant avenues through which galactic evolution can be studied, given the long lasting effects AGN feedback has on gas reservoirs, star formation
Externí odkaz:
http://arxiv.org/abs/2311.08507
Autor:
Lambrides, Erini, Chiaberge, Marco, Long, Arianna, Liu, Daizhong, Akins, Hollis B., Ptak, Andrew F., Andika, Irham Taufik, Capetti, Alessandro, Casey, Caitlin M., Champagne, Jaclyn B., Chworowsky, Katherine, Clarke, Tracy E., Cooper, Olivia R., Ding, Xuheng, Dong, Dillon Z., Faisst, Andreas L., Forman, Jordan Y., Franco, Maximilien, Gillman, Steven, Gozaliasl, Ghassem, Hall, Kirsten R., Harish, Santosh, Hayward, Christopher C., Hirschmann, Michaela, Hutchison, Taylor A., Jahnke, Knud, Jin, Shuowen, Kartaltepe, Jeyhan S., Kleiner, Emma T., Koekemoer, Anton M., Kokorev, Vasily, Manning, Sinclaire M., Martin, Crystal L., McKinney, Jed, Norman, Colin, Nyland, Kristina, Onoue, Masafusa, Robertson, Brant E., Shuntov, Marko, Silverman, John D., Stiavelli, Massimo, Trakhtenbrot, Benny, Vardoulaki, Eleni, Zavala, Jorge A., Allen, Natalie, Ilbert, Olivier, McCracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Toft, Sune
In this letter, we report the discovery of the highest redshift, heavily obscured, radio-loud AGN candidate selected using JWST NIRCam/MIRI, mid-IR, sub-mm, and radio imaging in the COSMOS-Web field. Using multi-frequency radio observations and mid-I
Externí odkaz:
http://arxiv.org/abs/2308.12823
Autor:
Breiding, Peter, Chiaberge, Marco, Lambrides, Erini, Meyer, Eileen T., Willner, S. P., Hilbert, Bryan, Haas, Martin, Miley, George, Perlman, Eric S., Barthel, Peter, O'Dea, Christopher P., Capetti, Alessandro, Wilkes, Belinda, Baum, Stefi A., Macchetto, Duccio F., Tremblay, Grant, Norman, Colin
Publikováno v:
ApJ 963 91 (2024)
While supermassive black holes are ubiquitous features of galactic nuclei, only a small minority are observed during episodes of luminous accretion. The physical mechanism(s) driving the onset of fueling and ignition in these active galactic nuclei (
Externí odkaz:
http://arxiv.org/abs/2305.11804
Autor:
Cresci, Giovanni, Tozzi, Giulia, Perna, Michele, Brusa, Marcella, Marconcini, Cosimo, Marconi, Alessandro, Carniani, Stefano, Brienza, Marisa, Giroletti, Marcello, Belfiore, Francesco, Ginolfi, Michele, Mannucci, Filippo, Ulivi, Lorenzo, Scholtz, Jan, Venturi, Giacomo, Arribas, Santiago, Übler, Hanna, D'Eugenio, Francesco, Mingozzi, Matilde, Balmaverde, Barbara, Capetti, Alessandro, Parlanti, Eleonora, Zana, Tommaso
Publikováno v:
A&A 672, A128 (2023)
Quasar feedback in the form of powerful outflows is invoked as a key mechanism to quench star formation in galaxies, although direct observational evidence is still scarce and debated. Here we present Early Release Science JWST NIRSpec IFU observatio
Externí odkaz:
http://arxiv.org/abs/2301.11060
Autor:
Bianchi, Stefano, Chiaberge, Marco, Laor, Ari, Antonucci, Robert, Bagul, Atharva, Capetti, Alessandro
A previous narrow-slit ($0.1$ arcsec) Hubble Space Telescope observation unveiled a broad relativistic H$\alpha$ profile in NGC3147, a low-luminosity ($\mathrm{L_{bol}}\sim10^{42}$ erg s$^{-1}$), low-Eddington ratio ($\mathrm{L_{bol}/L_{Edd}}\sim10^{
Externí odkaz:
http://arxiv.org/abs/2209.01807
Autor:
Balmaverde, Barbara, Capetti, Alessandro, Baldi, R. D., Baum, S., Chiaberge, M., Gilli, R., Jimenez-Gallardo, Ana, Marconi, Alessandro, Massaro, Francesco, Meyer, E., O'Dea, C., Speranza, G., Torresi, E., Venturi, Giacomo
Publikováno v:
A&A 662, A23 (2022)
This is the sixth paper presenting the results of the MUse RAdio Loud Emission line Snapshot survey (MURALES). We observed 37 radio sources from the 3C sample with z<0.3 and declination <20 degrees with the MUSE optical integral field spectrograph at
Externí odkaz:
http://arxiv.org/abs/2204.00528