85 citations · 329 across the 11 of their papers we have counts for
11 papers
Shock corrugation to the rescue of the internal shock model in microquasars: The single-scale MHD view
Patryk Pjanka, Camilia Demidem, Alexandra Veledina
Questions regarding energy dissipation in astrophysical jets are open to date, despite of numerous attempts to limit the diversity of models. Some of the most popular models assume…
Stratified Global MHD Models of Accretion Disks in Semi-Detached Binaries
Patryk Pjanka, James M. Stone
We present results of the first global magnetohydrodynamic (MHD) simulations of accretion disks fed by Roche lobe overflow, including vertical stratification, in order to investiga…
Internal shocks in microquasar jets with a continuous Lorentz factor modulation
Patryk Pjanka, James M. Stone
We perform relativistic hydrodynamic simulations of internal shocks formed in microquasar jets by continuous variation of the bulk Lorentz factor, in order to investigate the inter…
Circumnuclear Structures in Megamaser Host Galaxies
Patryk Pjanka, Jenny E. Greene, Anil C. Seth +4
Using HST, we identify circumnuclear (- pc scale) structures in nine new HO megamaser host galaxies to understand the flow of matter from kpc-scale galactic structure…
The power and production efficiency of blazar jets
Patryk Pjanka, Andrzej A. Zdziarski, Marek Sikora
We use published data on the power and production efficiency of jets in blazars with double radio lobes in order to compare results obtained using different methods. In order to el…
IGR J17451-3022: a dipping and eclipsing low mass X-ray binary
E. Bozzo, P. Pjanka, P. Romano +10
In this paper, we report on the available X-ray data collected by INTEGRAL, Swift, and XMM-Newton during the first outburst of the INTEGRAL transient IGR J17451-3022, discovered in…
IGR J17451--3022: constraints on the nature of the donor star
Andrzej A. Zdziarski, Janusz Ziolkowski, Enrico Bozzo +1
We constrain the binary parameters of the eclipsing accreting X-ray binary IGR J17451--3022 and the nature of its donor star. The donor mass, its radius, and the system inclination…
Core shifts, magnetic fields and magnetization of extragalactic jets
Andrzej A. Zdziarski, Marek Sikora, Patryk Pjanka +1
We study the effect of radio-jet core shift, which is a dependence of the position of the jet radio core on the observational frequency. We derive a new method of measuring the jet…
Jet contributions to the broad-band spectrum of Cyg X-1 in the hard state
Andrzej A. Zdziarski, Patryk Pjanka, Marek Sikora +1
We apply the jet model developed in the preceding paper of Zdziarski et al. to the hard-state emission spectra of Cyg X-1. We augment the model for the analytical treatment of the…
Compton scattering of blackbody photons by relativistic electrons
Andrzej A. Zdziarski, Patryk Pjanka
We present simple and accurate analytical formulae for the rates of Compton scattering by relativistic electrons integrated over the energy distribution of blackbody seed photons.…
Jet models for black-hole binaries in the hard spectral state
Andrzej A. Zdziarski, Lukasz Stawarz, Patryk Pjanka +1
This is part one of our study of models of jets with distributed electron acceleration. We present here our assumptions, basic equations, and their solutions for the steady-state e…