Zobrazeno 1 - 10
of 723
pro vyhledávání: '"Gastaldello, F"'
Autor:
Veronesi, I., Bartalucci, I., Rasia, E., Molendi, S., Balboni, M., De Grandi, S., Gastaldello, F., Grillo, C., Ghizzardi, S., Lovisari, L., Riva, G., Rossetti, M.
X-ray observations of galaxy clusters are routinely used to derive radial distributions of ICM thermdynamical properties such as density and temperature. However, observations allow us to access quantities projected on the celestial sphere only, so t
Externí odkaz:
http://arxiv.org/abs/2411.00092
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:
van Weeren, R. J., Timmerman, R., Vaidya, V., Gendron-Marsolais, M. -L., Botteon, A., Roberts, I. D., Hlavacek-Larrondo, J., Bonafede, A., Brüggen, M., Brunetti, G., Cassano, R., Cuciti, V., Edge, A. C., Gastaldello, F., Groeneveld, C., Shimwell, T. W.
The Perseus cluster is the brightest X-ray cluster in the sky and is known as a cool-core galaxy cluster. Being a very nearby cluster, it has been extensively studied. This has provided a comprehensive view of the physical processes that operate in t
Externí odkaz:
http://arxiv.org/abs/2410.02863
Autor:
Bartalucci, I., Rossetti, M., Boschin, W., Girardi, M., Nonino, M., Baraldi, E., Balboni, M., Coe, D., De Grandi, S., Gastaldello, F., Ghizzardi, S., Giacintucci, S., Grillo, C., Harvey, D., Lovisari, L., Molendi, S., Resseguier, T., Riva, G., Venturi, T., Zitrin, A.
We present a detailed study of the gas and galaxy properties of the cluster PSZ2 G282.28+49.94 detected in the Planck all-sky survey. The intracluster medium (ICM) of this object at z=0.56 exhibits a cometary-like shape. Combining Chandra and TNG obs
Externí odkaz:
http://arxiv.org/abs/2409.07290
Autor:
Bruno, L., Venturi, T., Dallacasa, D., Brienza, M., Ignesti, A., Brunetti, G., Riseley, C. J., Rossetti, M., Gastaldello, F., Botteon, A., Rudnick, L., van Weeren, R. J., Shulevski, A., Lal, D. V.
Publikováno v:
A&A 690, A329 (2024)
Context. Tailed radio galaxies are shaped by ram pressure owing to the high-velocity motion of their host through the intracluster medium (ICM). Recent works have reported on the increasing complexity of the phenomenology of tailed galaxies, with dep
Externí odkaz:
http://arxiv.org/abs/2409.03453
Autor:
Botteon, A., van Weeren, R. J., Eckert, D., Gastaldello, F., Markevitch, M., Giacintucci, S., Brunetti, G., Kale, R., Venturi, T.
Publikováno v:
A&A 690, A222 (2024)
Abell 754 is a rich galaxy cluster at $z=0.0543$ and is considered the prototype of a major cluster merger. Like many dynamically unrelaxed systems, it hosts diffuse radio emission on Mpc-scales. Extended synchrotron sources in the intra-cluster medi
Externí odkaz:
http://arxiv.org/abs/2406.18983
Autor:
Biava, N., Bonafede, A., Gastaldello, F., Botteon, A., Brienza, M., Shimwell, T. W., Brunetti, G., Bruno, L., Rajpurohit, K., Riseley, C. J., van Weeren, R. J., Rossetti, M., Cassano, R., De Gasperin, F., Drabent, A., Rottgering, H. J. A., Edge, A. C., Tasse, C.
Radio observations of a few cool-core galaxy clusters have revealed the presence of diffuse emission on cluster scales, similar to what was found in merging clusters in the form of radio halos. These sources might suggest that a minor merger, while n
Externí odkaz:
http://arxiv.org/abs/2403.09802
Autor:
Molendi, S., Ghizzardi, S., De Grandi, S., Balboni, M., Bartalucci, I., Eckert, D., Gastaldello, F., Lovisari, L., Riva, G., Rossetti, M.
Aims. The goal of this work is to devise a description of the enrichment process in large-scale structure that explains the available observations and makes predictions for future measurements. Methods. We took a spartan approach to this study, emplo
Externí odkaz:
http://arxiv.org/abs/2403.03987
Autor:
Balboni, M., Gastaldello, F., Bonafede, A., Botteon, A., Bartalucci, I., Bourdin, H., Brunetti, G., Cassano, R., De Grandi, S., De Luca, F., Ettori, S., Ghizzardi, S., Gitti, M., Iqbal, A., Johnston-Hollitt, M., Lovisari, L., Mazzotta, P., Molendi, S., Pointecouteau, E., Pratt, G. W., Riva, G., Rossetti, M., Rottgering, H., Sereno, M., van Weeren, R. J., Venturi, T., Veronesi, I.
The connection between the thermal and non-thermal properties in galaxy clusters hosting radio halos seems fairly well established. However, a comprehensive analysis of such a connection has been made only for integrated quantities (e.g. $L_X - P_{ra
Externí odkaz:
http://arxiv.org/abs/2402.18654