Zobrazeno 11 - 20
of 568
pro vyhledávání: '"Morabito L"'
Autor:
Kondapally, R., Best, P. N., Raouf, M., Thomas, N. L., Davé, R., Shabala, S. S., Röttgering, H. J. A., Hardcastle, M. J., Bonato, M., Cochrane, R. K., Małek, K., Morabito, L. K., Prandoni, I., Smith, D. J. B.
Radio-mode feedback is a key ingredient in galaxy formation and evolution models, required to reproduce the observed properties of massive galaxies in the local Universe. We study the cosmic evolution of radio-AGN feedback out to $z\sim2.5$ using a s
Externí odkaz:
http://arxiv.org/abs/2306.11795
Autor:
Cordun, C. M., Timmerman, R., Miley, G. K., van Weeren, R. J., Sweijen, F., Morabito, L. K., Röttgering, H. J. A.
Publikováno v:
A&A 676, A29 (2023)
It has long been known that luminous, ultra-steep spectrum radio sources are preferentially associated with massive galaxies at high redshifts. Here we describe a pilot project directed at such objects, to demonstrate the feasibility and importance o
Externí odkaz:
http://arxiv.org/abs/2306.00071
Autor:
Best, P. N., Kondapally, R., Williams, W. L., Cochrane, R. K., Duncan, K. J., Hale, C. L., Haskell, P., Malek, K., McCheyne, I., Smith, D. J. B., Wang, L., Botteon, A., Bonato, M., Bondi, M., Rivera, G. Calistro, Gao, F., Gurkan, G., Hardcastle, M. J., Jarvis, M. J., Mingo, B., Miraghaei, H., Morabito, L. K., Nisbet, D., Prandoni, I., Rottgering, H. J. A., Sabater, J., Shimwell, T., Tasse, C., van Weeren, R.
Source classifications, stellar masses and star formation rates are presented for 80,000 radio sources from the first data release of the Low Frequency Array Two-metre Sky Survey (LoTSS) Deep Fields, which represents the widest deep radio survey ever
Externí odkaz:
http://arxiv.org/abs/2305.05782
Models of radio galaxy physics have been primarily based on high frequency ($\geqslant$1 GHz) observations of their jets, hotspots, and lobes. Without highly resolved low frequency observations, which provide information on older plasma, our understa
Externí odkaz:
http://arxiv.org/abs/2302.01357
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:
Hale, C. L., Whittam, I. H., Jarvis, M. J., Best, P. N., Thomas, N. L., Heywood, I., Prescott, M., Adams, N., Afonso, J., An, Fangxia, Bowler, R. A. A., Collier, J. D., Cook, R. H. W., Davé, R., Frank, B. S., Glowacki, M., Hatfield, P. W., Lovell, S. Kolwa C. C., Maddox, N., Marchetti, L., Morabito, L. K., Murphy, E., Prandoni, I., Randriamanakoto, Z., Taylor, A. R.
We present deep 1.4 GHz source counts from $\sim$5 deg$^2$ of the continuum Early Science data release of the MeerKAT International Gigahertz Tiered Extragalactic Exploration (MIGHTEE) survey down to $S_{1.4\textrm{GHz}}\sim$15 $\mu$Jy. Using observa
Externí odkaz:
http://arxiv.org/abs/2211.05741
Autor:
Whittam, I. H., Jarvis, M. J., Hale, C. L., Prescott, M., Morabito, L. K., Heywood, I., Adams, N. J., Afonso, J., An, Fangxia, Ao, Y., Bowler, R. A., Collier, J. D., Deane, R. P., Delhaize, J., Frank, B., Glowacki, M., Hatfield, P. W., Maddox, N., Marchetti, L., Matthews, A. M., Prandoni, I., Randriamampandry, S., Randriamanakoto, Z., Smith, D. J. B., Taylor, A. R., Thomas, N. L., Vaccari, M.
We study the nature of the faint radio source population detected in the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Early Science data in the COSMOS field, focusing on the properties of the radio-loud active galactic nuclei
Externí odkaz:
http://arxiv.org/abs/2207.12379
Autor:
Petley, J. W., Morabito, L. K., Alexander, D. M., Rankine, A. L., Fawcett, V. A., Rosario, D. J., Matthews, J. H., Shimwell, T. M., Drabent, A.
Broad Absorption Line Quasars (BALQSOs) show strong signatures of powerful outflows, with the potential to alter the cosmic history of their host galaxies. These signatures are only seen in ~10% of optically selected quasars, although the fraction si
Externí odkaz:
http://arxiv.org/abs/2207.10102
Autor:
Timmerman, R., van Weeren, R. J., Botteon, A., Röttgering, H. J. A, McNamara, B. R., Sweijen, F., Bîrzan, L., Morabito, L. K.
Publikováno v:
A&A 668, A65 (2022)
Measurements of the quantity of radio-mode feedback injected by an active galactic nucleus into the cluster environment have mostly relied on X-ray observations, which reveal cavities in the intracluster medium excavated by the radio lobes. However,
Externí odkaz:
http://arxiv.org/abs/2207.05088
Autor:
Kappes, A., Burd, P. R., Kadler, M., Ghisellini, G., Bonnassieux, E., Perucho, M., Brüggen, M., Cheung, C. C., Ciardi, B., Gallo, E., Haardt, F., Morabito, L. K., Sbarrato, T., Drabent, A., Harwood, J., Jackson, N., Moldon, J.
Publikováno v:
A&A 663, A44 (2022)
Studies of the most distant AGNs allow us to test our current understanding of the physics present in radio-jetted AGNs across a range of environments. The decrease in apparent luminosity with distance is the primary difficulty to overcome in the stu
Externí odkaz:
http://arxiv.org/abs/2205.11288