Horst Fichtner

Employment

• Ruhr-Universität Bochum
  1998 - Present
• Ruhr-Universität Bochum
• Ruhr-Universität Bochum

Education

Education history is unavailable.

Projects & Funding

Projects & funding information is unavailable.

Publications (508)

• Collisionless Electron Heat Flux for the Nonequilibrium Solar Wind Plasma: Revisiting Hollweg’s Parameter
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae993f
  +Save
• Evidence of global periodicity in PSP data: Can it be linked to long-period oscillations in solar active regions?
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202558559
  +Save
• Hybrid Simulations of the Proton Beam Instabilities in the Young Solar Wind: The Formation of Hammerhead-like Distributions
  Rodrigo A. López, S. M. Shaaban, Marian V. Lazar +4 more
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae78cd
  +Save
• Impact of heat flux and suprathermal electrons on steady-state solar wind modelling with Icarus
  A. Vinogradov, Marian V. Lazar, Stefaan Poedts +5 more
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202659919
  +Save
• The Impact of Solar Magnetic Field Configurations on the Production of Gamma Rays at the Solar Disk
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae5e5f
  +Save
• Polytropic stellar wind models with strongly localized heating
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag755
  +Save
• Modeling complex plasma instabilities in space plasmas
  Dustin Lee Schröder, Marian V. Lazar, H. Fichtner +2 more
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202558777
  +Save
• Revisiting the Role of the Streaming Instability for the Cosmic-Ray Spectrum in the GeV-to-TeV Range
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae4ec4
  +Save
• Magnetic mirroring and curvature scattering cause anomalous cosmic-ray transport
  EGU General Assembly 2026 2026 DOI: 10.5194/egusphere-egu26-15269
  +Save
• Electrostatic Waves in Astrophysical Druyvesteyn Plasmas. I. Langmuir Waves
  Simon Tischmann, R. Gaelzer, Dustin Lee Schröder +2 more
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae28c9
  +Save
• Astrospheres of planet-hosting cool stars and their impact on exoplanetary habitability
  2026 DOI: 10.1017/s1743921324001157
  +Save
• Energetic Particle Transport during Solar Gamma Ray Flares
  2026 DOI: 10.1017/s1743921324001522
  +Save
• Models of Quasi-discontinuous Solar Wind Streams
  2026 DOI: 10.1007/978-981-95-1121-1_5
  +Save
• Cumulative Proton Right-handed Instabilities in the Young Solar Wind Observed by PSP
  S. M. Shaaban, Marian V. Lazar, H. Fichtner +2 more
  The Astrophysical Journal 2025 DOI: 10.3847/1538-4357/ae09ac
  +Save
• Modelling cosmic-ray transport: magnetised versus unmagnetised motion in astrophysical magnetic turbulence
  Journal of Plasma Physics 2025 DOI: 10.1017/S0022377825100883
  +Save
• Testing the influence of anisotropic CR transport and the Galactic magnetic field structure on the all sky gamma-ray emission
  2025 DOI: 10.22323/1.501.0634
  +Save
• The Titan wakefield effects due to solar wind streaming
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202554191
  +Save
• Heat-flux Instabilities of Regularized Kappa Distributed Strahl Electrons Resolved with ALPS
  Dustin L. Schröder, Marian V. Lazar, Rodrigo A. López +1 more
  The Astrophysical Journal 2025 DOI: 10.3847/1538-4357/ade0c0
  +Save
• Magnetohydrodynamic turbulence and the associated spatial diffusion tensor of cosmic rays in dynamical galactic halos
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202553873
  +Save
• Extended Scenarios for Solar Radio Emissions With Downshifted Electron Beam Plasma Excitations
  Marian V. Lazar, Rodrigo A. López, S. M. Shaaban +2 more
  Journal of Geophysical Research: Space Physics 2025 DOI: 10.1029/2024JA033597
  +Save