Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Hoang, D N"'
Autor:
Hoang, D. N., Brüggen, M., Shimwell, T. W., Botteon, A., O'Sullivan, S. P., Pasini, T., Zhang, X., Bonafede, A., Liu, A., Liu, T., Brunetti, G., Bulbul, E., Di Gennaro, G., Röttgering, H. J. A., Vernstrom, T., van Weeren, R. J.
Cosmological simulations predict the presence of warm hot thermal gas in the cosmic filaments that connect galaxy clusters. This gas is thought to constitute an important part of the missing baryons in the Universe. In addition to the thermal gas, co
Externí odkaz:
http://arxiv.org/abs/2306.03904
The Planck clusters in the LOFAR sky. II. LoTSS-DR2: Recovering diffuse extended emission with LOFAR
Autor:
Bruno, L., Brunetti, G., Botteon, A., Cuciti, V., Dallacasa, D., Cassano, R., van Weeren, R. J., Shimwell, T., Taffoni, G., Russo, S. A., Bonafede, A., Brüggen, M., Hoang, D. N., Röttgering, H. J. A., Tasse, C.
Publikováno v:
A&A 672, A41 (2023)
Extended radio sources in the sky require a dense sampling of short baselines to be properly imaged by interferometers. This problem arises in many areas of radio astronomy, such as in the study of galaxy clusters, which may host Mpc-scale diffuse sy
Externí odkaz:
http://arxiv.org/abs/2301.08121
Autor:
Jones, A., de Gasperin, F., Cuciti, V., Botteon, A., Zhang, X., Gastaldello, F., Shimwell, T., Simionescu, A., Rossetti, M., Cassano, R., Akamatsu, H., Bonafede, A., Brüggen, M., Brunetti, G., Camillini, L., Di Gennaro, G., Drabent, A., Hoang, D. N., Rajpurohit, K., Natale, R., Tasse, C., van Weeren, R. J.
Publikováno v:
A&A 680, A31 (2023)
Context. It is well-established that shock waves in the intracluster medium launched by galaxy cluster mergers can produce synchrotron emission, which is visible to us at radio frequencies as radio relics. However, the particle acceleration mechanism
Externí odkaz:
http://arxiv.org/abs/2301.07814
Autor:
Callingham, J. R., Shimwell, T. W., Vedantham, H. K., Bassa, C. G., O'Sullivan, S. P., Yiu, T. W. H., Bloot, S., Best, P. N., Hardcastle, M. J., Haverkorn, M., Kavanagh, R. D., Lamy, L., Pope, B. J. S., Röttgering, H. J. A., Schwarz, D. J., Tasse, C., van Weeren, R. J., White, G. J., Zarka, P., Bomans, D. J., Bonafede, A., Bonato, M., Botteon, A., Bruggen, M., Chyży, K. T., Drabent, A., Emig, K. L., Gloudemans, A. J., Gürkan, G., Hajduk, M., Hoang, D. N., Hoeft, M., Iacobelli, M., Kadler, M., Kunert-Bajraszewska, M., Mingo, B., Morabito, L. K., Nair, D. G., Pérez-Torres, M., Ray, T. P., Riseley, C. J., Rowlinson, A., Shulevski, A., Sweijen, F., Timmerman, R., Vaccari, M., Zheng, J.
Publikováno v:
A&A 670, A124 (2023)
We present the detection of 68 sources from the most sensitive radio survey in circular polarisation conducted to date. We use the second data release of the 144 MHz LOFAR Two-metre Sky Survey to produce circularly-polarised maps with median 140 $\mu
Externí odkaz:
http://arxiv.org/abs/2212.09815
Autor:
Hoang, D. N., Brüggen, M., Botteon, A., Shimwell, T. W., Zhang, X., Bonafede, A., Bruno, L., Bonnassieux, E., Cassano, R., Cuciti, V., Drabent, A., de Gasperin, F., Gastaldello, F., Di Gennaro, G., Hoeft, M., Jones, A., Pignataro, G. V., Röttgering, H. J. A., Simionescu, A., van Weeren, R. J.
Publikováno v:
A&A 665, A60 (2022)
The presence of large-scale magnetic fields and ultra-relativistic electrons in the intra-cluster medium (ICM) is confirmed through the detection of diffuse radio synchrotron sources, so-called radio halos and relics. Due to their steep-spectrum natu
Externí odkaz:
http://arxiv.org/abs/2206.04666
Autor:
Shimwell, T. W., Hardcastle, M. J., Tasse, C., Best, P. N., Röttgering, H. J. A., Williams, W. L., Botteon, A., Drabent, A., Mechev, A., Shulevski, A., van Weeren, R. J., Bester, L., Brüggen, M., Brunetti, G., Callingham, J. R., Chyży, K. T., Conway, J. E., Dijkema, T. J., Duncan, K., de Gasperin, F., Hale, C. L., Haverkorn, M., Hugo, B., Jackson, N., Mevius, M., Miley, G. K., Morabito, L. K., Morganti, R., Offringa, A., Oonk, J. B. R., Rafferty, D., Sabater, J., Smith, D. J. B., Schwarz, D. J., Smirnov, O., O'Sullivan, S. P., Vedantham, H., White, G. J., Albert, J. G., Alegre, L., Asabere, B., Bacon, D. J., Bonafede, A., Bonnassieux, E., Brienza, M., Bilicki, M., Bonato, M., Rivera, G. Calistro, Cassano, R., Cochrane, R., Croston, J. H., Cuciti, V., Dallacasa, D., Danezi, A., Dettmar, R. J., Di Gennaro, G., Edler, H. W., Enßlin, T. A., Emig, K. L., Franzen, T. M. O., García-Vergara, C., Grange, Y. G., Gürkan, G., Hajduk, M., Heald, G., Heesen, V., Hoang, D. N., Hoeft, M., Horellou, C., Iacobelli, M., Jamrozy, M., Jelić, V., Kondapally, R., Kukreti, P., Kunert-Bajraszewska, M., Magliocchetti, M., Mahatma, V., Małek, K., Mandal, S., Massaro, F., Meyer-Zhao, Z., Mingo, B., Mostert, R. I. J., Nair, D. G., Nakoneczny, S. J., Nikiel-Wroczyński, B., Orrú, E., Pajdosz-Śmierciak, U., Pasini, T., Prandoni, I., van Piggelen, H. E., Rajpurohit, K., Retana-Montenegro, E., Riseley, C. J., Rowlinson, A., Saxena, A., Schrijvers, C., Sweijen, F., Siewert, T. M., Timmerman, R., Vaccari, M., Vink, J., West, J. L., Wołowska, A., Zhang, X., Zheng, J.
In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at approximately 12h45m +44$^\circ$30' and 1h00m +28$^\circ$00' and spannin
Externí odkaz:
http://arxiv.org/abs/2202.11733
Autor:
Botteon, A., Shimwell, T. W., Cassano, R., Cuciti, V., Zhang, X., Bruno, L., Camillini, L., Natale, R., Jones, A., Gastaldello, F., Simionescu, A., Rossetti, M., Akamatsu, H., van Weeren, R. J., Brunetti, G., Brüggen, M., Groenveld, C., Hoang, D. N., Hardcastle, M. J., Ignesti, A., Di Gennaro, G., Bonafede, A., Drabent, A., Röttgering, H. J. A., Hoeft, M., de Gasperin, F.
Publikováno v:
A&A 660, A78 (2022)
Relativistic electrons and magnetic fields permeate the intra-cluster medium (ICM) and manifest themselves as diffuse sources of synchrotron emission observable at radio wavelengths, namely radio halos and radio relics. Although there is broad consen
Externí odkaz:
http://arxiv.org/abs/2202.11720
Autor:
Sanders, J. S., Biffi, V., Brüggen, M., Bulbul, E., Dennerl, K., Dolag, K., Erben, T., Freyberg, M., Gatuzz, E., Ghirardini, V., Hoang, D. N., Klein, M., Liu, A., Merloni, A., Pacaud, F., Ramos-Ceja, M. E., Reiprich, T. H., ZuHone, J. A.
Publikováno v:
A&A 661, A36 (2022)
Abell 3266 is one of the X-ray brightest galaxy clusters in the sky and is a well-known merging system. Using the ability of the eROSITA telescope onboard SRG (Spectrum R\"ontgen Gamma) to observe a wide field with a single pointing, we analysed a ne
Externí odkaz:
http://arxiv.org/abs/2106.14534
Autor:
Liu, A., Bulbul, E., Ghirardini, V., Liu, T., Klein, M., Clerc, N., Oezsoy, Y., Ramos-Ceja, M. E., Pacaud, F., Comparat, J., Okabe, N., Bahar, Y. E., Biffi, V., Brunner, H., Brueggen, M., Buchner, J., Chitham, J. Ider, Chiu, I., Dolag, K., Gatuzz, E., Gonzalez, J., Hoang, D. N., Lamer, G., Merloni, A., Nandra, K., Oguri, M., Ota, N., Predehl, P., Reiprich, T. H., Salvato, M., Schrabback, T., Sanders, J. S., Seppi, R., Thibaud, Q.
Publikováno v:
A&A 661, A2 (2022)
The eROSITA Final Equatorial-Depth Survey has been carried out during the PV phase of the SRG/eROSITA telescope and completed in November 2019. This survey is designed to provide the first eROSITA-selected sample of galaxy clusters and groups and to
Externí odkaz:
http://arxiv.org/abs/2106.14518
Autor:
Pasini, T., Brüggen, M., Hoang, D. N., Ghirardini, V., Bulbul, E., Klein, M., Liu, A., Shimwell, T. W., Hardcastle, M. J., Williams, W. L., Botteon, A., Gastaldello, F., van Weeren, R. J., Merloni, A., de Gasperin, F., Bahar, Y. E., Pacaud, F., Ramos-Ceja, M.
Publikováno v:
A&A 661, A13 (2022)
During the performance verification phase of the SRG/eROSITA telescope, the eROSITA Final Equatorial-Depth Survey (eFEDS) has been carried out. It covers a 140 deg$^2$ field located at 126$^\circ <$ R.A. $< 146^\circ$ and -3$^\circ <$ Dec. $< +6^\cir
Externí odkaz:
http://arxiv.org/abs/2106.14524