83 citations · 308 across the 12 of their papers we have counts for
13 papers
Interaction of stellar dipole and disk magnetic fields in accretion-ejection systems
Somayeh Sheikhnezami, Sarah Aslani
We study jet formation from a magnetically diffusive, sub-Keplerian accretion disk threaded by different magnetic field configurations. We present two dimensional, axisymmetric MHD…
The Influence of Magnetic Fields on Second-Generation Star Formation in Globular Clusters
Asiyeh Yaghoobi, Fatemeh Tabatabaei, Joakim Rosdahl +3
We investigate the previously unexplored role of magnetic fields in the formation of second-generation (SG) stars in proto-globular clusters (GCs) using 3D radiation-magnetohydrody…
Dust continuum radiation maps from MHD simulations of accretion-ejection systems around single and binary stars
Somayeh Sheikhnezami, Christian Fendt, Sareh Ataiee
We study the launching of magnetized jets from a resistive circumstellar disk within a binary system, employing a unique combination of 3D MHD jet launching simulations (PLUTO code…
Exploring the Jet Formation in binary systems applying 3D MHD simulations
Somayeh Sheikhnezami, Mostafa Sepahvand
We investigate the formation of an ideal magnetized jet that originates from a disk acting as a boundary by conducting axisymmetric MHD simulations. Our simulations demonstrate tha…
The physics of the MHD disk-jet transition in binary systems: jetted spiral walls launched from disk spiral arms
Somayeh Sheikhnezami, Christian Fendt
We present a detailed physical analysis of the jet launching mechanism of a circum-stellar disk that is located in a binary system. Applying 3D resistive MHD simulations, we invest…
Square Kilometre Array Science Data Challenge 1: analysis and results
A. Bonaldi, T. An, M. Bruggen +42
As the largest radio telescope in the world, the Square Kilometre Array (SKA) will lead the next generation of radio astronomy. The feats of engineering required to construct the t…
Turbulence driven by stellar jets, the possibility and the efficiency
Somayeh Sheikhnezami, Mohsen Abgharian-Afoushteh
We investigate the feedback of the stellar jets on the surrounding interstellar gas based on 2D and 3D simulations applying HD and MHD module of PLUTO 4.2 code. The main question w…
Long-term simulation of MHD jet launching from an orbiting star-disk system
Somayeh Sheikhnezami, Christian Fendt
We present fully three-dimensional magnetohydrodynamic jet launching simulations of a jet source orbiting in a binary system. We consider a time-dependent binary gravitational pote…
Wobbling and precessing jets from warped disks in binary systems
Somayeh Sheikhnezami, Christian Fendt
We present results of the first ever three-dimensional (3D) magnetohydrodynamic (MHD) simulations of the accretion-ejection structure. We investigate the 3D evolution of jets launc…
Modelling MHD accretion-ejection - episodic ejections of jets triggered by a mean-field disk dynamo
Deniss Stepanovs, Christian Fendt, Somayeh Sheikhnezami
We present MHD simulations exploring the launching, acceleration and collimation of jets and disk winds. The evolution of the disk structure is consistently taken into account. Ext…
Formation and collimation of relativistic MHD jets - simulations and radio maps
Christian Fendt, Oliver Porth, Somayeh Sheikhnezami
We present results of magnetohydrodynamic (MHD) simulations of jet formation and propagation, discussing a variety of astrophysical setups. In the first approach we consider simula…
Bipolar jets launched from accretion disks. II. Formation of symmetric and asymmetric jets and counter jets
Christian Fendt, Somayeh Sheikhnezami
We investigate the jet launching process from accretion disks extending our recent study (paper I) to a truly bipolar setup. We perform axisymmetric MHD simulations of the disk-jet…
Bipolar jets launched from magnetically diffusive accretion disks. I. Ejection efficiency vs field strength and diffusivity
Somayeh Sheikhnezami, Christian Fendt, Oliver Porth +2
We investigate the launching of jets and outflows from magnetically diffusive accretion disks. Using the PLUTO code we solve the time-dependent resistive MHD equations taking into…