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Long-term stability of the dead-zone in proto-planetary disks

Published online by Cambridge University Press:  10 November 2011

Mario Flock
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany email: [email protected]
Neal Turner
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany email: [email protected] Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
Natalia Dzyurkevich
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany email: [email protected]
Hubert Klahr
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany email: [email protected]
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Abstract

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We present 3D global non-ideal MHD simulations with a self consistent dynamic evolution of ionization fraction of the gas as result of reduced chemical network. We include X-ray ionization from the star as well as cosmic ray ionization. Based on local gas density and temperature in our chemical network, we determine the magnetic resistivity, which is fed back in MHD simulations. Parameters for dust size and abundance are chosen to have accreting layers and a laminar “dead” mid-plane.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

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Dzyurkevich, N., Flock, M., Turner, N. J., Klahr, H., & Henning, T. 2010, A&A, 515, A70Google Scholar
Flock, M., Dzyurkevich, N., Klahr, H., & Mignone, A. 2010, A&A, 516, A26Google Scholar
Turner, N. J., Carballido, A., & Sano, T. N. 2010, ApJ, 708, 188CrossRefGoogle Scholar