Ambipolar Diffusion Effects on Weakly Ionized Turbulence Molecular Clouds

Details Ambipolar Diffusion Effects on Weakly Ionized Turbulence Molecular Clouds Ambipolar Diffusion Effects on Weakly Ionized Turbulence Molecular Clouds

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..270..421l&link_type=abstract

Computational Star Formation, Proceedings of the International Astronomical Union, IAU Symposium, Volume 270, p. 421-424

Statistics

Computation

Turbulence, Ism: Magnetic Fields, Ism: Clouds, Methods: Numerical

Scientific paper

Ambipolar diffusion (AD) is a key process in molecular clouds (MCs). Non-ideal MHD turbulence simulations are technically very challenging because of the large Alfvén speed of ions in weakly ionized clouds. Using the Heavy-Ion Approximation method (Li, McKee & Klein 2006), we have carried out two-fluid simulations of AD in isothermal, turbulent boxes at a resolution of 5123, to investigate the effect of AD on the weakly ionized turbulence in MCs. Our simulation results show that the neutral gas component of the two-fluid system gradually transforms from an ideal MHD turbulence system to near a pure hydrodynamic turbulence system within the standard AD regime, in which the neutrals and ions are coupled over a flow time. The change of the turbulent state has a profound effect on the weakly ionized MCs.

Affiliated with

Also associated with

No associations

Rating

Ambipolar Diffusion Effects on Weakly Ionized Turbulence Molecular Clouds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ambipolar Diffusion Effects on Weakly Ionized Turbulence Molecular Clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ambipolar Diffusion Effects on Weakly Ionized Turbulence Molecular Clouds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1360542