SIMBAD references

2005A&A...432L...1W - Astronomy and Astrophysics, volume 432, L1-4 (2005/3-2)

Links between magnetic fields and plasma flows in a coronal hole.

WIEGELMANN T., XIA L.D. and MARSCH E.

Abstract (from CDS):

We compare the small-scale features visible in the Ne VIII Doppler-shift map of an equatorial coronal hole (CH) as observed by SUMER with the small-scale structures of the magnetic field as constructed from a simultaneous photospheric magnetogram by a potential magnetic-field extrapolation. The combined data set is analysed with respect to the small-scale flows of coronal matter, which means that the Ne VIII Doppler-shift used as tracer of the plasma flow is investigated in close connection with the ambient magnetic field. Some small closed-field regions in this largely open CH are also found in the coronal volume considered. The Doppler-shift patterns are found to be clearly linked with the field topology.

Abstract Copyright:

Journal keyword(s): Sun: corona - Sun: magnetic field - Sun: UV radiation - Sun: Doppler shifts

Simbad objects: 0

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