2 citations · 2 across the 6 of their papers we have counts for
6 papers · 2 filters
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…
Cosmic-ray Acceleration at Ultrarelativistic Shock Waves: Effects of a "Realistic" Magnetic Field Structure
Jacek Niemiec, Michal Ostrowski
First-order Fermi acceleration processes at ultrarelativistic shocks are studied with Monte Carlo simulations. The accelerated particle spectra are derived by integrating the exact…
The X-ray Jet in Centaurus A: Clues on the Jet Structure and Particle Acceleration
Jun Kataoka, Lukasz Stawarz, Felix Aharonian +3
We report detailed studies of the X-ray emission from the kpc scale jet in the nearest active galaxy, Cen A. 41 compact sources were found within the jet, 13 of which were newly id…
On the Magnetic Field in the Kiloparsec-Scale Jet of Radio Galaxy M 87
L. Stawarz, A. Siemiginowska, M. Ostrowski +1
Several low-power kiloparsec-scale jets in nearby radio galaxies are known for their synchrotron radiation extending up to optical and X-ray photon energies. Here we comment on hig…
On the Magnetic Field in Kpc-Scale Jets of FR I Radio Galaxies
L. Stawarz, A. Siemiginowska, M. Ostrowski +1
The energy content of large-scale jets in FR I radio galaxies is still an open issue. Here we show that upper limits on the high-energy and very high-energy gamma-ray emission of t…
On Multiwavelength Emission and Morphology of Large-Scale Quasar Jets
L. Stawarz, M. Sikora, M. Ostrowski +1
We propose that the knots of the large-scale jets in powerful radio sources represent moving and separate portions of the jet matter, with the excess kinetic power. This can explai…