Zobrazeno 1 - 10
of 24 887
pro vyhledávání: '"Perna A."'
With the discovery of gravitational waves (GWs), the disks of Active Galactic Nuclei (AGN) have emerged as an interesting environment for hosting a fraction of their sources. AGN disks are conducive to forming both long and short Gamma-Ray Bursts (GR
Externí odkaz:
http://arxiv.org/abs/2412.17714
Autor:
Ho, K., Perna, S., Wittrock, S., Tsunegi, S., Kubota, H., Yuasa, S., Bortolotti, P., d'Aquino, M., Serpico, C., Cros, V., Lebrun, R.
Exceptional points (EPs), branch singularities parameter space of non-Hermitian eigenvalue manifolds, display unique topological phenomena linked to eigenvalue and eigenvector switching: the parameter space states are highly sensitive to the system's
Externí odkaz:
http://arxiv.org/abs/2412.17037
Autor:
Jones, Gareth C., Bowler, Rebecca, Bunker, Andrew J., Arribas, Santiago, Carniani, Stefano, Charlot, Stephane, Perna, Michele, Del Pino, Bruno Rodríguez, Übler, Hannah, Willott, Chris J., Chevallard, Jacopo, Cresci, Giovanni, Parlanti, Eleonora, Scholtz, Jan, Venturi, Giacomo
We present JWST/NIRSpec IFU observations of the z=7.152 galaxy system B14-65666, as part of the GA-NIFS survey. Line and continuum emission in this massive system (log10(M*/Msol)=9.8+/-0.2) is resolved into two strong cores, two weaker clumps, and a
Externí odkaz:
http://arxiv.org/abs/2412.15027
Autor:
Ceci, Matteo, Cresci, Giovanni, Arribas, Santiago, Böker, Torsten, Bunker, Andy, Charlot, Stephane, Fahrion, Katja, Isaak, Kate, Lamperti, Isabella, Marconi, Alessandro, Tozzi, Giulia, Perna, Michele, Ulivi, Lorenzo
Merger events are thought to be an important phase in the assembly of massive galaxies. At the same time, Active Galactic Nuclei (AGN) play a fundamental role in the evolution of their star formation histories. Both phenomena can be observed at work
Externí odkaz:
http://arxiv.org/abs/2412.14685
The fate of the binary neutron star (NS) merger remnants hinges sensitively upon the NS equation of state and the threshold mass, $M_{\rm ls}$, that separates a long-lived from a short-lived NS remnant. The nature of the electromagnetic counterparts
Externí odkaz:
http://arxiv.org/abs/2412.07846
Gravitational waves sourced by amplified scalar perturbations are a common prediction across a wide range of cosmological models. These scalar curvature fluctuations are inherently nonlinear and typically non-Gaussian. We argue that the effects of no
Externí odkaz:
http://arxiv.org/abs/2412.06764
Autor:
Zamora, S., Venturi, Giacomo, Carniani, Stefano, Bertola, Elena, Parlanti, Eleonora, Perna, Michele, Arribas, Santiago, Böker, Torsten, Bunker, Andrew J., Charlot, Stéphane, D'Eugenio, Francesco, Maiolino, Roberto, Del Pino, Bruno Rodríguez, Übler, Hannah, Cresci, Giovanni, Jones, Gareth C., Lamperti, Isabella
Distant quasars (QSOs) in galaxy overdensities are considered key actors in the evolution of the early Universe. In this work, we studied the kinematic and physical properties of the BR1202-0725 system at z=4.7, one of the most overdense fields known
Externí odkaz:
http://arxiv.org/abs/2412.02751
Autor:
Perna, Michele, Arribas, Santiago, Ji, Xihan, Marconcini, Cosimo, Lamperti, Isabella, Bertola, Elena, Circosta, Chiara, D'Eugenio, Francesco, Übler, Hannah, Böker, Torsten, Maiolino, Roberto, Bunker, Andrew J., Carniani, Stefano, Charlot, Stéphane, Willott, Chris J., Cresci, Giovanni, Parlanti, Eleonora, Del Pino, Bruno Rodríguez, Scholtz, Jan, Venturi, Giacomo
Studying the distribution and properties of ionised gas in outflows driven by AGN is crucial for understanding the feedback mechanisms at play in extragalactic environments. In this study, we explore the connection between ionised outflows traced by
Externí odkaz:
http://arxiv.org/abs/2411.13698
This paper presents a quantum field theoretical formalism for studying magnons in finite nanostructures with arbitrary shapes and spatially nonuniform ground states. It extends the classical micromagnetic formalism by introducing a micromagnetic Hami
Externí odkaz:
http://arxiv.org/abs/2411.13236
Autor:
Marconcini, C., D'Eugenio, F., Maiolino, R., Arribas, S., Bunker, A., Carniani, S., Charlot, S., Perna, M., Del Pino, B. Rodríguez, Übler, H., Pérez-González, P. G., Willott, C. J., Böker, T., Cresci, G., Curti, M., Lamperti, I., Scholtz, J., Parlanti, E., Venturi, G.
We present JWST/NIRSpec integral field spectroscopic (IFS) observations of the \Lyalpha emitter CR7 at z ~ 6.6, observed as part of the GA-NIFS program. Using low-resolution PRISM (R ~ 100) data, we confirm a bright \Lyalpha emitter, and a diffuse \L
Externí odkaz:
http://arxiv.org/abs/2411.08627