17 citations · 21 across the 7 of their papers we have counts for
9 papers
FUGUE: A New GPU-accelerated General Relativistic Magnetohydrodynamics Code with Weak-Field Multipole Self-Gravity and Quasi-Stationary Kerr Black Hole Evolution
Piotr Plonka, Agnieszka Janiuk
We present FUGUE, a new GPU-accelerated code for general relativistic magnetohydrodynamics (GRMHD). The code supports an optional quasi-stationary update of the Kerr black hole mas…
The Hidden Evolution of Gamma-Ray Burst Jets Revealed by Gravitational Waves
Gerardo Urrutia, Fabio De Colle, Agnieszka Janiuk +2
Gamma-ray burst (GRB) jets can propagate through massive stars, where the high opacity of the stellar envelope traps electromagnetic radiation and limits observations of the jet at…
Three-dimensional GRMHD simulations of jet formation and propagation in self-gravitating collapsing stars
Piotr Płonka, Agnieszka Janiuk
We investigate collapsar models with and without self-gravity under identical initial conditions to directly compare the effects of self-gravity on jet properties, such as opening…
The propagation of long GRB jets through and beyond its progenitor star
Gerardo Urrutia, Agnieszka Janiuk
Long gamma-ray bursts (lGRB) are produced by relativistic jets arising from the collapse of massive stars. Such progenitor environments present complex physical conditions that are…
Relativistic MHD simulations of merging and collapsing stars and effects on GRB transient
Agnieszka Janiuk, Gerardo Urrutia, Joseph Saji +1
Compact binary mergers and the collapse of massive stars can produce intense transients observable across high-energy wavelengths. Events such as gamma-ray bursts and kilonova emis…
Chemical Evolution and Kilonova Implications of Post-Merger Accretion Disk Winds
Agnieszka Janiuk, Joseph Saji, Gerardo Urrutia
Several gamma ray bursts have recently been associated with a kilonova emission. We study the mechanisms which could account for this effect, by means of radioactive decay of eleme…
Exploring Jet Structure and Dynamics in Short Gamma Ray Bursts: A Case Study on GRB 090510
Joseph Saji, Maria Giovanna Dainotti, Shubham Bhardwaj +1
Gamma-ray bursts observed in high-energies allow the investigation of the emission processes of these still puzzling events. In this study, we perform general relativistic magnetoh…
Numerical simulations of jet launching and breakout from collapsars
Gerardo Urrutia, Agnieszka Janiuk, Hector Olivares
Long Gamma-Ray Bursts (LGRBs) are often associated with the collapse of stripped-envelope massive stars. Powerful relativistic jets drill through the stellar envelope before the ga…
Can MAD accretion disks launching structured jets explain both GRB and AGN engines? Magnetically arrested accretion disks launching structured jets in application to GRB and AGN engines
A. Janiuk, B. James
We explore the formation, energetics, and geometry of relativistic jets along with the variability of their central engine. We study both fast and slowly rotating black holes and a…