Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apj...697..100s&link_type=abstract
The Astrophysical Journal, Volume 697, Issue 1, pp. 100-105 (2009).
Astronomy and Astrophysics
Astronomy
1
Accretion, Accretion Disks, Mhd, Planetary Systems: Protoplanetary Disks, Plasmas
Scientific paper
A thin disk accompanied by spindle-like jet, created commonly near massive central objects, exhibits a topologically singular aspect when viewed from an ideal macroscopic theory. The accreting inflow and jet's outflow are "singular perturbation" on the ambient Keplerian rotation, which are generated by some nonideal higher order (in the order of derivatives) effects. The Hall effect can generate such a structure in a weakly ionized plasma of a protostellar disk. Numerical estimate of the characteristic length scale defined by the singular perturbation justifies the precedence of the Hall effect.
Furukawa Masashi
Shiraishi Jun'ichi
Yoshida Zensho
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