Zobrazeno 1 - 10
of 3 469
pro vyhledávání: '"P. Gaspari"'
Aims. The locations of binary neutron star (BNS) mergers within their host galaxies encode the systemic kicks that these systems received in the supernova aftermath. We investigate how the galactic potential and the systemic kicks shape the offset di
Externí odkaz:
http://arxiv.org/abs/2410.19480
Autor:
Lepore, M., Pinto, C., Tozzi, P., Gaspari, M., Gastaldello, F., Liu, A., Rosati, P., van Weeren, R., Cresci, G., Iani, E., Rodighiero, G.
We present a detailed analysis of the thermal X-ray emission from the intracluster medium (ICM) in the cool-core galaxy cluster Abell 2667 ($z=0.23$). Our goal is to detect low-temperature ($<2$ keV) X-ray emitting gas, potentially associated to a co
Externí odkaz:
http://arxiv.org/abs/2410.16831
Autor:
Riva, G., Pratt, G. W., Rossetti, M., Bartalucci, I., Kay, S. T., Rasia, E., Gavazzi, R., Umetsu, K., Arnaud, M., Balboni, M., Bonafede, A., Bourdin, H., De Grandi, S., De Luca, F., Eckert, D., Ettori, S., Gaspari, M., Gastaldello, F., Ghirardini, V., Ghizzardi, S., Gitti, M., Lovisari, L., Maughan, B. J., Mazzotta, P., Molendi, S., Pointecouteau, E., Sayers, J., Sereno, M., Towler, I.
We characterise the entropy profiles of 32 very high mass ($M_{500}>7.75\times10^{14}~M_{\odot}$) galaxy clusters (HIGHMz), selected from the CHEX-MATE sample, to study the intracluster medium (ICM) entropy distribution in a regime where non-gravitat
Externí odkaz:
http://arxiv.org/abs/2410.11947
Autor:
Sengupta, D., Torres-Albà, N., Pizzetti, A., López, I. E., Marchesi, S., Vignali, C., Barchiesi, L., Cox, I., Gaspari, M., Zhao, X., Ajello, M., Esposito, F.
Most of the super-massive black holes in the Universe accrete material in an obscured phase. While it is commonly accepted that the "dusty torus" is responsible for the nuclear obscuration, its geometrical, physical, and chemical properties are far f
Externí odkaz:
http://arxiv.org/abs/2410.02878
Machine learning has brought significant advances in cybersecurity, particularly in the development of Intrusion Detection Systems (IDS). These improvements are mainly attributed to the ability of machine learning algorithms to identify complex relat
Externí odkaz:
http://arxiv.org/abs/2409.18736
Publikováno v:
A&A 689, A348 (2024)
The systems creating binary neutron stars (BNSs) experience systemic kicks when one of the components goes supernova. The combined magnitude of these kicks is still a topic of debate, and has implications for the eventual location of the transient re
Externí odkaz:
http://arxiv.org/abs/2407.13667
Powerful supermassive black hole (SMBH) winds in the form of ultra-fast outflows (UFOs) are detected in the X-ray spectra of several active galactic nuclei (AGN) seemingly independently of their radio classification between radio quiet (RQ) and radio
Externí odkaz:
http://arxiv.org/abs/2407.00393
Autor:
Lanzuisi, G., Matzeu, G., Baldini, P., Bertola, E., Comastri, A., Tombesi, F., Luminari, A., Braito, V., Reeves, J., Chartas, G., Bianchi, S., Brusa, M., Cresci, G., Nardini, E., Piconcelli, E., Zappacosta, L., Serafinelli, R., Gaspari, M., Gilli, R., Cappi, M., Dadina, M., Perna, M., Vignali, C., Veilleux, S.
Publikováno v:
A&A 689, A247 (2024)
IRASF11119 is an ultra-luminous IR galaxy with post-merger morphology, hosting a type-1 QSO at z=0.189. Its 2013 Suzaku spectrum shows a prominent Ultra Fast Outflow (UFO) absorption feature (v_out~0.25c). In 2021, we obtained the first XMM-Newton lo
Externí odkaz:
http://arxiv.org/abs/2406.12057
Autor:
Pasini, T., de Gasperin, F., Brüggen, M., Cassano, R., Botteon, A., Brunetti, G., Edler, H. W., van Weeren, R. J., Cuciti, V., Di Gennaro, T. Shimwell. G., Gaspari, M., Hardcastle, M., Rottgering, H. J. A., Tasse, C.
Publikováno v:
A&A 689, A218 (2024)
A fraction of galaxy clusters harbor diffuse radio sources known as radio halos. The currently adopted scenario for their formation is based on second-order Fermi re-acceleration of seed electrons that is driven by merger-driven turbulence in the int
Externí odkaz:
http://arxiv.org/abs/2406.12005
Autor:
Liu, Wenhao, Sun, Ming, Voit, G. Mark, Lal, Dharam Vir, Nulsen, Paul, Gaspari, Massimo, Sarazin, Craig, Ehlert, Steven, Zheng, Xianzhong
Strong AGN heating provides an alternative means for the disruption of cluster cool cores (CCs) to cluster mergers. In this work we present a systematic Chandra study of a sample of 108 nearby ($z<0.1$) galaxy clusters, to investigate the effect of A
Externí odkaz:
http://arxiv.org/abs/2405.09738