Zobrazeno 1 - 10
of 1 431
pro vyhledávání: '"SCHERER, K"'
Publikováno v:
A&A 663, A10 (2022)
Context. State of the art simulations of astrospheres are modelled using three-dimensional (3D) magnetohydrodynamics (MHD). An astrospheric interaction of a stellar wind (SW) with its surrounding interstellar medium (ISM) can only generate a bow shoc
Externí odkaz:
http://arxiv.org/abs/2205.04823
A significative fraction of all massive stars in the Milky Way move supersonically through their local interstellar medium (ISM), producing bow shock nebulae by wind-ISM interaction. The stability of these observed astrospheres around cool massive st
Externí odkaz:
http://arxiv.org/abs/2107.05513
Publikováno v:
A&A 634, A67 (2020)
Three-dimensional models of astrospheres have recently become of interest. However, comparisons between these models and observations are non-trivial because of the two-dimensional nature of observations. By projecting selected physical values of thr
Externí odkaz:
http://arxiv.org/abs/2002.07437
Autor:
Scherer, K., Baalmann, L. R., Fichtner, H., Kleimann, J., Bomans, D. J., Weis, K., Ferreira, S. E. S., Herbst, K.
The interpretation of recent observations of bow shocks around O-stars and the creation of corresponding models require a detailed understanding of the associated (magneto-)hydrodynamic structures. We base our study on three-dimensional numerical mag
Externí odkaz:
http://arxiv.org/abs/2002.06966
In classical thermodynamics the entropy is an extensive quantity, i.e.\ the sum of the entropies of two subsystems in equilibrium with each other is equal to the entropy of the full system consisting of the two subsystems. The extensitivity of entrop
Externí odkaz:
http://arxiv.org/abs/1810.12645
For various plasma applications the so-called (non-relativistic) $\kappa$-distribution is widely used to reproduce and interpret the suprathermal particle populations exhibiting a power-law distribution in velocity or energy. Despite its reputation t
Externí odkaz:
http://arxiv.org/abs/1802.00735
Autor:
Pogorelov, N. V., Fichtner, H., Czechowski, A., Lazarian, A., Lembege, B., Roux, J. A. le, Potgieter, M. S., Scherer, K., Stone, E. C., Strauss, R. D., Wiengarten, T., Wurz, P., Zank, G. P., Zhang, M.
This paper summarizes the results obtained by the team "Heliosheath Processes and the Structure of the Heliopause: Modeling Energetic Particles, Cosmic Rays, and Magnetic Fields" supported by the International Space Science Institute in Bern, Switzer
Externí odkaz:
http://arxiv.org/abs/1612.02339
Publikováno v:
2016APh....82...93S
Huge astrospheres or stellar wind bubbles influence the propagation of cosmic rays at energies up to the TeV range and can act as small-scale sinks decreasing the cosmic ray flux. We model such a sink (in 2D) by a sphere of radius 10\,pc embedded wit
Externí odkaz:
http://arxiv.org/abs/1607.04963
Autor:
Scherer, K. M.
Cancer is one of the most common causes of death in the Western world. Hence, the development of novel effective treatment modalities to combat this disease is important. Combretastatins are powerful anticancer drugs that are being evaluated in phase
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.680476
In the heliosphere, especially in the inner heliosheath, mass-, momentum-, and energy loading induced by the ionization of neutral interstellar species plays an important, but for some species, especially Helium, an underestimated role. We discuss th
Externí odkaz:
http://arxiv.org/abs/1312.2455