H i  anisotropies associated with radio-polarimetric filaments

Author： Kalberla P. M. W.   Kerp J.   Haud U.   Haverkorn M.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|607|issue|A15-A15

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.607, Iss.issue, 2017-10, pp. : A15-A15

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Abstract

Context. LOFAR detected toward 3C 196 linear polarization structures which were found subsequently to be closely correlated with cold filamentary H i  structures. The derived direction-dependent H i power spectra revealed marked anisotropies for narrow ranges in velocity, sharing the orientation of the magnetic field as expected for magneto-hydrodynamical (MHD) turbulence.

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