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Przeglądanie wg autora "Wóltański, Dominik"

Repozytorium Uniwersytetu Mikołaja Kopernika

Przeglądanie wg autora "Wóltański, Dominik"

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  • Cosmic-ray driven dynamo in galactic disks 
    Hanasz, Michał; Otmianowska-Mazur, Katarzyna; Lesch, Harald; Kowal, Grzegorz; Soida, Marian; Wóltański, Dominik; Kowalik, Kacper; Pawłaszek, Rafał; Kulesza-Żydzik, Barbara (2008-12-31)
    We present new developments on the Cosmic--Ray driven, galactic dynamo, modeled by means of direct, resistive CR--MHD simulations, performed with ZEUS and PIERNIK codes. The dynamo action, leading to the amplification of ...
  • Cosmic-ray driven dynamo in galaxies 
    Hanasz, Michał; Wóltański, Dominik; Kowalik, Kacper; Kotarba, Hanna (2011-02-07)
    We present recent developments of global galactic-scale numerical models of the Cosmic Ray (CR) driven dynamo, which was originally proposed by Parker (1992). We conduct a series of direct CR+MHD numerical simulations of ...
  • Cosmic ray driven dynamo in barred and ringed galaxies 
    Kulpa-Dybeł, K.; Otmianowska-Mazur, Katarzyna; Kulesza-Żydzik, Barbara; Kowal, Grzegorz; Wóltański, Dominik; Hanasz, Michał; Kowalik, Kacper (2011-01-02)
    We study the global evolution of the magnetic field and interstellar medium (ISM) of the barred and ringed galaxies in the presence of non-axisymmetric components of the potential, i.e. the bar and/or the oval perturbations. ...
  • Global galactic dynamo driven by cosmic-rays and exploding magnetized stars 
    Hanasz, Michał; Wóltański, Dominik; Kowalik, Kacper (2009-11-05)
    We report first results of first global galactic-scale CR-MHD simulations of cosmic-ray-driven dynamo. We investigate the dynamics of magnetized interstellar medium (ISM), which is dynamically coupled with the cosmic-ray ...
  • Global simulations of galactic dynamo driven by cosmic-rays and exploding magnetized stars 
    Hanasz, Michał; Wóltański, Dominik; Kowalik, Kacper; Pawłaszek, Rafał (2008-12-31)
    We conduct global galactic--scale magnetohydrodynamical (MHD) simulations of the cosmic--ray driven dynamo. We assume that exploding stars deposit small--scale, randomly oriented, dipolar magnetic fields into the differentially ...
  • Global simulations of the magnetic field evolution under the influence of the cosmic-ray-driven dynamo 
    Kulpa-Dybeł, K.; Otmianowska-Mazur, Katarzyna; Kulesza-Żydzik, Barbara; Kowal, Grzegorz; Hanasz, Michał; Wóltański, Dominik; Kowalik, Kacper (2011-06-01)
    We present three-dimensional global numerical simulations of the cosmic-ray (CR) driven dynamo in barred galaxies. We study the evolution of the interstellar medium of the barred galaxy in the presence of non-axisymmetric ...
  • PIERNIK mhd code - a multi-fluid, non-ideal extension of the relaxing-TVD scheme (I) 
    Hanasz, Michał; Kowalik, Kacper; Wóltański, Dominik; Pawłaszek, Rafał (2008-12-11)
    We present a new multi-fluid, grid MHD code PIERNIK, which is based on the Relaxing TVD scheme. The original scheme has been extended by an addition of dynamically independent, but interacting fluids: dust and a diffusive ...
  • PIERNIK mhd code - a multi-fluid, non-ideal extension of the relaxing-TVD scheme (II) 
    Hanasz, Michał; Kowalik, Kacper; Wóltański, Dominik; Pawłaszek, Rafał; Kornet, Kacper (2008-12-15)
    We present a new multi-fluid, grid MHD code PIERNIK, which is based on the Relaxing TVD scheme (Jin and Xin, 1995). The original scheme (see Trac & Pen (2003) and Pen et al. (2003)) has been extended by an addition of ...
  • PIERNIK mhd code - a multi-fluid, non-ideal extension of the relaxing-TVD scheme (III) 
    Hanasz, Michał; Kowalik, Kacper; Wóltański, Dominik; Pawłaszek, Rafał (2008-12-28)
    We present a new multi-fluid, grid MHD code PIERNIK, which is based on the Relaxing TVD scheme (Jin & Xin, 1995). The original scheme (see Trac & Pen (2003) and Pen et al. (2003)) has been extended by an addition of ...
  • PIERNIK mhd code - a multi-fluid, non-ideal extension of the relaxing-TVD scheme (IV) 
    Hanasz, Michał; Kowalik, Kacper; Wóltański, Dominik; Pawłaszek, Rafał (2009-01-02)
    We present a new multi-fluid, grid MHD code PIERNIK, which is based on the Relaxing TVD scheme (Jin & Xin, 1995). The original scheme (see Trac & Pen (2003) and Pen et al. (2003)) has been extended by an addition of ...