Multi-Phase Dynamics of Magnetized Interstellar Medium
نویسندگان
چکیده
منابع مشابه
Dynamics In Magnetized Interstellar Gas
Interstellar medium is turbulent and this induces relative motions of dust grains. We calculate relative velocities of charged grains in a partially ionized magnetized gas. We account for anisotropy of magnetohydrodynamic (MHD) turbulence, grain coupling with magnetic field, and the turbulence cutoff arising from the ambipolar drag. We obtain grain velocities for turbulence with parameters cons...
متن کاملMagnetohydrodynamics of Cloud Collisions in a Multi-phase Interstellar Medium
We extend previous studies of the physics of interstellar cloud collisions by beginning investigation of the role of magnetic fields through 2D magnetohydrodynamical (MHD) numerical simulations. In particular, we study head-on collisions between equal mass, mildly supersonic diffuse clouds similar to our previous study. Here we include a moderate magnetic field, corresponding to β = pg/pb = 4, ...
متن کاملLong-Term Evolution of Supernova Remnants in Magnetized Interstellar Medium
The evolution of supernova remnants (SNRs) is studied, with particular attention to the effect of magnetic fields with axisymmetric two-dimensional magnetohydrodynamical simulations. The evolution of magnetic SNRs is the same as non-magnetic ones in the adiabatic Sedov stage. After a thin shell is formed, the shell is driven by the pressure of the hot interior gas (bubble). Evolution in the pre...
متن کاملThe Multi - Phase Medium in the Interstellar Complex N 44
We have obtained high-resolution H i observations of N44, one of the largest H ii complexes in the Large Magellanic Cloud. The distribution and internal motions of the H i gas show dynamic effects of fast stellar winds and supernova blasts. Numerous H i holes are detected, with the most prominent two corresponding to the optically identified superbubbles Shell 1 and Shell 2. The H i gas associa...
متن کاملThe Distribution of Pressures in a Supernova-Driven Interstellar Medium. I. Magnetized Medium
Observations have suggested substantial departures from pressure equilibrium in the interstellar medium (ISM) in the plane of the Galaxy, even on scales under 50 pc. Nevertheless, multi-phase models of the ISM assume at least locally isobaric gas. The pressure then determines the density reached by gas cooling to stable thermal equilibrium. We use numerical models of the magnetized ISM to exami...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2009
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921310010203