Zobrazeno 1 - 10
of 2 404
pro vyhledávání: '"Perucho, A."'
The interactions between jets from active galactic nuclei (AGN) and their stellar environments significantly influence jet dynamics and emission characteristics. In low-power jets, such as those in Fanaroff-Riley I (FR I) galaxies, the jet-star inter
Externí odkaz:
http://arxiv.org/abs/2412.07945
Autor:
Saiz-Pérez, Ainara, Fromm, Christian M., Perucho, Manel, Porth, Oliver, Kadler, Matthias, Mizuno, Yosuke, Chael, Andrew, Mannheim, Karl
Context. Radio galaxies with visible two-sided jet structures, such as NGC 1052, are sources of particular interest to study the collimation and shock structure of active galactic nuclei jets. High-resolution very-long-baseline interferometry observa
Externí odkaz:
http://arxiv.org/abs/2412.02358
Autor:
Ricci, L., Boccardi, B., Roeder, J., Perucho, M., Mattia, G., Kadler, M., Benke, P., Bartolini, V., Krichbaum, T. P., Madika, E.
The dynamic of relativistic jets in the inner parsec regions is deeply affected by the nature of the magnetic fields. The level of magnetization of the plasma, as well as the geometry of these fields on compact scales, have not yet been fully constra
Externí odkaz:
http://arxiv.org/abs/2411.19126
Autor:
Perucho, Manel
A number of observations have revealed atomic and/or molecular lines in active galaxies hosting jets and outflows. Line widths indicate outward motions of hundreds to few thousands of kilometers per second. They appear associated to the presence of r
Externí odkaz:
http://arxiv.org/abs/2401.14218
We conducted multi-epoch, multi-frequency parsec-scale studies on the gigahertz-peaked spectrum quasar PKS 0858-279 with the Very Long Baseline Array (VLBA). Our observations on 2005-11-26 elucidated a weak core, characterized by an inverted spectrum
Externí odkaz:
http://arxiv.org/abs/2401.03603
Aims. Relativistic jets launched from active galactic nuclei accelerate up to highly relativistic velocities within a few parsecs to tens of parsecs. The precise way in which this process takes place is still under study. While magnetic acceleration
Externí odkaz:
http://arxiv.org/abs/2312.06410
Autor:
Fuentes, Antonio, Gómez, José L., Martí, José M., Perucho, Manel, Zhao, Guang-Yao, Lico, Rocco, Lobanov, Andrei P., Bruni, Gabriele, Kovalev, Yuri Y., Chael, Andrew, Akiyama, Kazunori, Bouman, Katherine L., Sun, He, Cho, Ilje, Traianou, Efthalia, Toscano, Teresa, Dahale, Rohan, Foschi, Marianna, Gurvits, Leonid I., Jorstad, Svetlana, Kim, Jae-Young, Marscher, Alan P., Mizuno, Yosuke, Ros, Eduardo, Savolainen, Tuomas
Publikováno v:
Nature Astronomy 7 (2023) 1359
Supermassive black holes at the centre of active galactic nuclei power some of the most luminous objects in the Universe. Typically, very long baseline interferometric (VLBI) observations of blazars have revealed only funnel-like morphologies with li
Externí odkaz:
http://arxiv.org/abs/2311.01861
Autor:
Perucho, Manel, López-Miralles, Jose
In this paper, we review recent and ongoing work by our group on numerical simulations of relativistic jets. Relativistic outflows in Astrophysics are related to dilute, high energy plasmas, with physical conditions out of the reach of current labora
Externí odkaz:
http://arxiv.org/abs/2306.05864
Autor:
Perucho, Manel, López-Miralles, Jose, Gizani, Nectaria A. B., Martí, José-María, Boccardi, Bia
Extragalactic jets are generated as bipolar outflows at the nuclei of active galaxies. Depending on their morphology, they are classified as Fanaroff-Riley type I (centre-brightened) and Fanaroff-Riley type II (edge-brightened) radio jets. However, t
Externí odkaz:
http://arxiv.org/abs/2305.14060
Radiative transfer plays a major role in high-energy astrophysics. In multiple scenarios and in a broad range of energy scales, the coupling between matter and radiation is essential to understand the interplay between theory, observations and numeri
Externí odkaz:
http://arxiv.org/abs/2212.00370