Zobrazeno 1 - 10
of 242
pro vyhledávání: '"Delogu, V"'
Publikováno v:
A&A 617, A58 (2018)
[abridged] Aims: We test the effects of re-orienting jets from an active galactic nucleus (AGN) on the intracluster medium in a galaxy cluster environment with short central cooling time. We investigate appearance and properties of the resulting cavi
Externí odkaz:
http://arxiv.org/abs/1801.04276
Many nearby AGNs display a significant short-term variability. In this work we re-analyze photometric data of four active galactic nuclei observed by Kepler in order to study the flickering activity, having as main goal that of searching for multiple
Externí odkaz:
http://arxiv.org/abs/1704.05717
Jets from Active Galactic Nuclei (AGN) inflate large cavities in the hot gas environment around galaxies and galaxy clusters. The large-scale gas circulation promoted within such cavities by the jet itself gives rise to backflows that propagate back
Externí odkaz:
http://arxiv.org/abs/1701.07825
Autor:
Romeo, A. D., Kang, Xi, Contini, E., Sommer-Larsen, J., Fassbender, R., Napolitano, N. R., Antonuccio-Delogu, V., Gavignaud, I.
Publikováno v:
A&A 581, A50 (2015)
By means of our own cosmological-hydrodynamical simulation and semi-analytical model we studied galaxy population properties in clusters and groups, spanning over 10 different bands from UV to NIR, and their evolution since redshift z=2. We compare o
Externí odkaz:
http://arxiv.org/abs/1505.06091
We investigate the interplay between jets from Active Galactic Nuclei (AGNs) and the surrounding InterStellar Medium (ISM) through full 3D, high resolution, Adaptive Mesh Refinement simulations performed with the FLASH code. We follow the jet- ISM sy
Externí odkaz:
http://arxiv.org/abs/1311.5562
Autor:
Riggi, S., Antonuccio-Delogu, V., Bandieramonte, M., Becciani, U., Costa, A., La Rocca, P., Massimino, P., Petta, C., Pistagna, C., Riggi, F., Sciacca, E., Vitello, F.
Muon tomographic visualization techniques try to reconstruct a 3D image as close as possible to the real localization of the objects being probed. Statistical algorithms under test for the reconstruction of muon tomographic images in the Muon Portal
Externí odkaz:
http://arxiv.org/abs/1307.0714
Autor:
Velonà, A. D. Romeo, Sommer-Larsen, J., Napolitano, N. R., Antonuccio-Delogu, V., Cielo, S., Gavignaud, I.
Publikováno v:
ApJ 770, 155 (2014)
We present results from SPH-cosmological simulations, including self-consistent modelling of SN feedback and chemical evolution, of galaxies belonging to two clusters and twelve groups. We reproduce the mass-metallicity (ZM) relation of galaxies clas
Externí odkaz:
http://arxiv.org/abs/1305.1663
We perform relativistic hydrodynamic simulations of the formation and evolution of AGN cocoons produced by very light powerful jets. We calculate the intensity maps of the Sunyaev-Zel'dovich (SZ) effect at high frequencies for the simulated AGN cocoo
Externí odkaz:
http://arxiv.org/abs/1207.3735
Autor:
Tortora, C., Romeo, A. D., Napolitano, N. R., Antonuccio-Delogu, V., Meza, A., Sommer-Larsen, J., Capaccioli, M.
The age and metallicity gradients for a sample of group and cluster galaxies from N-body+hydrodynamical simulation are analyzed in terms of galaxy stellar mass. Dwarf galaxies show null age gradient with a tail of high and positive values for systems
Externí odkaz:
http://arxiv.org/abs/1009.2500
X-ray cavities and extended radio sources (`cocoons') surrounding active galactic nuclei (AGN) have been detected by the Chandra X-ray mission and radio interferometers. A joint analysis of X-ray and radio maps suggests that pressure values of non-th
Externí odkaz:
http://arxiv.org/abs/1006.2564