Zobrazeno 1 - 10
of 1 372
pro vyhledávání: '"A Botteon"'
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:
Pignataro, G. V., Bonafede, A., Bernardi, G., Balboni, M., Vazza, F., van Weeren, R. J., Ubertosi, F., Cassano, R., Brunetti, G., Botteon, A., Venturi, T., Akamatsu, H., Drabent, A., Hoeft, M.
The clusters Abell 2061 and Abell 2067 in the Corona Borealis supercluster have been studied at different radio frequencies and are both known to host diffuse radio emission. The aim of this work is to investigate the radio emission in between them,
Externí odkaz:
http://arxiv.org/abs/2409.15412
Autor:
Botteon, Andrea
Diffuse synchrotron emission in the form of radio halos and radio relics probe the existence of relativistic electrons and magnetic fields in galaxy clusters. These nonthermal components are generated from the dissipation of kinetic energy released b
Externí odkaz:
http://arxiv.org/abs/2409.13856
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:
Rajpurohit, K., O'Sullivan, E., Schellenberger, G., Brienza, M., Vrtilek, J. M., Forman, W., David, L. P., Clarke, T., Botteon, A., Vazza, F., Giacintucci, S., Jones, C., Brüggen, M., Shimwell, T. W., Drabent, A., Loi, F., Loubser, S. I., Kolokythas, K., Babyk, I., Röttgering, H. J. A.
We present deep, wideband multifrequency radio observations (144 MHz$-$8 GHz) of the remarkable galaxy group NGC 741, which yield crucial insights into the interaction between the infalling head-tail radio galaxy (NGC 742) and the main group. Our new
Externí odkaz:
http://arxiv.org/abs/2408.15197
The forthcoming generation of radio telescope arrays promises significant advancements in sensitivity and resolution, enabling the identification and characterization of many new faint and diffuse radio sources. Conventional manual cataloging methodo
Externí odkaz:
http://arxiv.org/abs/2408.10871
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:
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:
Roberts, I. D., van Weeren, R. J., de Gasperin, F., Botteon, A., Edler, H. W., Ignesti, A., Matijević, L., Tomičić, N.
Publikováno v:
A&A 689, A22 (2024)
We present the discovery of a 100 kpc low-frequency radio tail behind the nearby group galaxy, NGC 2276. The extent of this tail is a factor of ten larger than previously reported from higher-frequency radio and X-ray imaging. The radio morphology of
Externí odkaz:
http://arxiv.org/abs/2406.09221
Autor:
Osinga, E., van Weeren, R. J., Brunetti, G., Adam, R., Rajpurohit, K., Botteon, A., Callingham, J. R., Cuciti, V., de Gasperin, F., Miley, G. K., Röttgering, H. J. A., Shimwell, T. W.
Publikováno v:
A&A 688, A175 (2024)
Merging galaxy clusters often host spectacular diffuse radio synchrotron sources. These sources can be explained by a non-thermal pool of relativistic electrons accelerated by shocks and turbulence in the intracluster medium. The origin of the pool a
Externí odkaz:
http://arxiv.org/abs/2405.09384