Search Results - "Morabito, L. K"

Fundamental differences in the radio properties of red and blue quasars: enhanced compact AGN emission in red quasars by Fawcett, V A, Alexander, D M, Rosario, D J, Klindt, L, Fotopoulou, S, Lusso, E, Morabito, L K, Calistro Rivera, G

“…ABSTRACT We have recently used the Faint Images of the Radio Sky at Twenty-centimeters (FIRST) survey to show that red quasars have fundamentally different…”
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LOFAR-Boötes: properties of high- and low-excitation radio galaxies at 0.5 < z < 2.0 by Williams, W L, Calistro Rivera, G, Best, P N, Hardcastle, M J, Röttgering, H J A, Duncan, K J, de Gasperin, F, Jarvis, M J, Miley, G K, Mahony, E K, Morabito, L K, Nisbet, D M, Prandoni, I, Smith, D J B, Tasse, C, White, G J

“…Abstract This paper presents a study of the redshift evolution of radio-loud active galactic nuclei (AGN) as a function of the properties of their galaxy hosts…”
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Low-frequency Carbon Radio Recombination Lines. I. Calculations of Departure Coefficients by Salgado, F., Morabito, L. K., Oonk, J. B. R., Salas, P., Toribio, M. C., Röttgering, H. J. A., Tielens, A. G. G. M.

“…In the first paper of this series, we study the level population problem of recombining carbon ions. We focus our study on high quantum numbers, anticipating…”
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Revisiting the Fanaroff–Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS) by Mingo, B, Croston, J H, Hardcastle, M J, Best, P N, Duncan, K J, Morganti, R, Rottgering, H J A, Sabater, J, Shimwell, T W, Williams, W L, Brienza, M, Gurkan, G, Mahatma, V H, Morabito, L K, Prandoni, I, Bondi, M, Ineson, J, Mooney, S

“…Abstract The relative positions of the high and low surface brightness regions of radio-loud active galaxies in the 3CR sample were found by Fanaroff and Riley…”
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The radio loudness of SDSS quasars from the LOFAR Two-metre Sky Survey: ubiquitous jet activity and constraints on star formation by Macfarlane, C, Best, P N, Sabater, J, Gürkan, G, Jarvis, M J, Röttgering, H J A, Baldi, R D, Calistro Rivera, G, Duncan, K J, Morabito, L K, Prandoni, I, Retana-Montenegro, E

“…ABSTRACT We examine the distribution of radio emission from ∼42 000 quasars from the Sloan Digital Sky Survey, as measured in the LOFAR Two-metre Sky Survey…”
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The LOFAR Two-metre Sky Survey: Deep Fields data release 1. V. Survey description, source classifications, and host galaxy properties by Best, P N, Kondapally, R, Williams, W L, Cochrane, R K, Duncan, K J, Hale, C L, Haskell, P, Małek, K, McCheyne, I, Smith, D J B, Wang, L, Botteon, A, Bonato, M, Bondi, M, Rivera, G Calistro, Gao, F, Gürkan, G, Hardcastle, M J, Jarvis, M J, Mingo, B, Miraghaei, H, Morabito, L K, Nisbet, D, Prandoni, I, Röttgering, H J A, Sabater, J, Shimwell, T, Tasse, C, van Weeren, R

“…ABSTRACT Source classifications, stellar masses, and star-formation rates are presented for ≈80 000 radio sources from the first data release of the Low…”
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Reaching small scales with low-frequency imaging: applications to the Dark Ages by Morabito, L. K., Silk, J.

“…The initial conditions for the density perturbations in the early Universe, which dictate the large-scale structure and distribution of galaxies we see today,…”
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Fundamental differences in the properties of red and blue quasars: measuring the reddening and accretion properties with X-shooter by Fawcett, V A, Alexander, D M, Rosario, D J, Klindt, L, Lusso, E, Morabito, L K, Calistro Rivera, G

“…ABSTRACT We have recently found fundamental differences in the radio properties of red quasars when compared to typical blue quasars. In this paper, we use…”
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Fundamental differences in the radio properties of red and blue quasars: insight from the LOFAR Two-metre Sky Survey (LoTSS) by Rosario, D J, Fawcett, V A, Klindt, L, Alexander, D M, Morabito, L K, Fotopoulou, S, Lusso, E, Calistro Rivera, G

“…ABSTRACT Red quasi-stellar objects (QSOs) are a subset of the luminous end of the cosmic population of active galactic nuclei (AGNs), most of which are…”
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A low-frequency sub-arcsecond view of powerful radio galaxies in rich-cluster environments: 3C 34 and 3C 320 by Mahatma, V H, Basu, A, Hardcastle, M J, Morabito, L K, van Weeren, R J

“…ABSTRACT Models of radio galaxy physics have been primarily based on high frequency (≥1 GHz) observations of their jets, hotspots, and lobes. Without highly…”
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The LOFAR window on star-forming galaxies and AGNs – curved radio SEDs and IR–radio correlation at 0<z<2.5 by Calistro Rivera, G., Williams, W. L., Hardcastle, M. J., Duncan, K., Röttgering, H. J. A., Best, P. N., Brüggen, M., Chyży, K. T., Conselice, C. J., de Gasperin, F., Engels, D., Gürkan, G., Intema, H. T., Jarvis, M. J., Mahony, E. K., Miley, G. K., Morabito, L. K., Prandoni, I., Sabater, J., Smith, D. J. B., Tasse, C., van der Werf, P. P., White, G. J.

“…Abstract We present a study of the low-frequency radio properties of star-forming (SF) galaxies and active galactic nuclei (AGNs) up to redshift z = 2.5. The…”
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MIGHTEE: deep 1.4 GHz source counts and the sky temperature contribution of star-forming galaxies and active galactic nuclei by 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, Kolwa, S, Lovell, C C, Maddox, N, Marchetti, L, Morabito, L K, Murphy, E, Prandoni, I, Randriamanakoto, Z, Taylor, A R

“…Abstract We present deep 1.4 GHz source counts from ∼5 deg2 of the continuum Early Science data release of the MeerKAT International Gigahertz Tiered…”
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MIGHTEE: the nature of the radio-loud AGN population by 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 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

“…ABSTRACT We study the nature of the faint radio source population detected in the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Early…”
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Exploring the radio loudness of SDSS quasars with spectral stacking by Arnaudova, M I, Smith, D J B, Hardcastle, M J, Das, S, Drake, A, Duncan, K, Gürkan, G, Magliocchetti, M, Morabito, L K, Petley, J W, Shenoy, S, Tasse, C

“…ABSTRACT We use new 144 MHz observations over 5634 deg2 from the LOFAR (Low Frequency Array) Two-metre Sky Survey (LoTSS) to compile the largest sample of…”
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Connecting radio emission to AGN wind properties with broad absorption line quasars by 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

“…ABSTRACT Broad absorption line quasars (BALQSOs) show strong signatures of powerful outflows, with the potential to alter the cosmic history of their host…”
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The Far-Infrared Radio Correlation at low radio frequency with LOFAR/H-ATLAS by Read, S C, Smith, D J B, Gürkan, G, Hardcastle, M J, Williams, W L, Best, P N, Brinks, E, Calistro-Rivera, G, Chyży, K T, Duncan, K, Dunne, L, Jarvis, M J, Morabito, L K, Prandoni, I, Röttgering, H J A, Sabater, J, Viaene, S

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MIGHTEE: are giant radio galaxies more common than we thought? by Delhaize, J, Heywood, I, Prescott, M, Jarvis, M J, Delvecchio, I, Whittam, I H, White, S V, Hardcastle, M J, Hale, C L, Afonso, J, Ao, Y, Brienza, M, Brüggen, M, Collier, J D, Daddi, E, Glowacki, M, Maddox, N, Morabito, L K, Prandoni, I, Randriamanakoto, Z, Sekhar, S, An, Fangxia, Adams, N J, Blyth, S, Bowler, R A A, Leeuw, L, Marchetti, L, Randriamampandry, S M, Thorat, K, Seymour, N, Smirnov, O, Taylor, A R, Tasse, C, Vaccari, M

“…ABSTRACT We report the discovery of two new giant radio galaxies (GRGs) using the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey…”
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A novel Bayesian approach for decomposing the radio emission of quasars: I. Modelling the radio excess in red quasars by Best, P N, Duncan, K J, Calistro-Rivera, G, Morabito, L K, Petley, J W, Prandoni, I, Röttgering, H J A, Smith, D J B

“…ABSTRACT Studies show that both radio jets from the active galactic nuclei (AGNs) and the star formation (SF) activity in quasar host galaxies contribute to…”
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Carbon and hydrogen radio recombination lines from the cold clouds towards Cassiopeia A by Oonk, J B R, van Weeren, R J, Salas, P, Salgado, F, Morabito, L K, Toribio, M C, Tielens, A G G M, Rottgering, H J A

“…We use the Low Frequency Array to perform a systematic high spectral resolution investigation of the low-frequency 33-78 MHz spectrum along the line of sight…”
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A plethora of diffuse steep spectrum radio sources in Abell 2034 revealed by LOFAR by Shimwell, T. W., Luckin, J., Brüggen, M., Brunetti, G., Intema, H. T., Owers, M. S., Röttgering, H. J. A., Stroe, A., van Weeren, R. J., Williams, W. L., Cassano, R., de Gasperin, F., Heald, G. H., Hoang, D. N., Hardcastle, M. J., Sridhar, S. S., Sabater, J., Best, P. N., Bonafede, A., Chyży, K. T., Enßlin, T. A., Ferrari, C., Haverkorn, M., Hoeft, M., Horellou, C., McKean, J. P., Morabito, L. K., Orrù, E., Pizzo, R., Retana-Montenegro, E., White, G. J.

“…With Low-Frequency Array (LOFAR) observations, we have discovered a diverse assembly of steep spectrum emission that is apparently associated with the…”
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