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20042024
most citedThe LOFAR Two-metre Sky Survey - II. First data release

586 citations · 1.5k across the 21 of their papers we have counts for

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6 papers · 1 filter

astro-ph2007★ 40 cited

Magnetic fields and gas in the cluster influenced spiral galaxy NGC4254 - I. Radio and X-rays observations

K. T. Chyzy, M. Ehle, R. Beck

Radio observations can show how cluster galaxies are affected by various environmental factors. We made three frequency radio-polarimetric VLA observations and performed sensitive…

astro-ph2006★ 55 cited

A method of estimation of the dynamical age of FR II-type radio sources from multifrequency data

J. Machalski, K. T. Chyzy, L. Stawarz +1

We propose a new approach in determining ages of FR II type radio sources. We apply the assumed dynamical model of Kaiser et al. (1997) to a number of FR II type radio galaxies obs…

astro-ph2006★ 31 cited

NGC 4654: polarized radio continuum emission as a diagnostic tool for a galaxy--cluster interaction

M. Soida, K. Otmianowska-Mazur, K. T. Chyży +1

A recent comparison between deep VLA HI observations and dynamical models of the Virgo cluster spiral galaxy NGC 4654 has shown that only a model involving a combination of a tidal…

astro-ph2005

Gradient and dispersion analyses of the WMAP data

K. T. Chyzy, B. Novosyadlyj, M. Ostrowski

We studied the WMAP temperature anisotropy data using two different methods. The derived signal gradient maps show regions with low mean gradients in structures near the ecliptic p…

astro-ph2004

Giant Radio Sources in View of the Dynamical Evolution of FRII-type Population. II. The Evolutionary Tracks on the P-D and u_{c}-E_{tot} Planes

J. Machalski, K. T. Chyzy, M. Jamrozy

The time evolution of `fiducial' radio sources derived from fitting the dynamical model of Kaiser et al. (1997) is compared with the observational data for the `clan' sources found…

astro-ph2004★ 1 cited

Giant Radio Sources in View of the Dynamical Evolution of FRII-type Population. I. The Observational Data, and Basic Physical Parameters of Sources Derived from the Analytical Model

J. Machalski, K. T. Chyzy, M. Jamrozy

The time evolution of giant lobe-dominated radio galaxies (with projected linear size D>1 Mpc if H_{0}=50 km/s/Mpc and q_{0}=0.5 is analysed on the basis of dynamical evolution of…