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A&A 526, A137 (2011) DOI: 10.1051/0004-6361/201015231
 

Summary: A&A 526, A137 (2011)
DOI: 10.1051/0004-6361/201015231
c ESO 2011
Astronomy
&
Astrophysics
A single picture for solar coronal outflows and radio noise storms
G. Del Zanna1, G. Aulanier2, K.-L. Klein2, and T. T÷r÷k2
1
DAMTP, Centre for Mathematical Sciences, Wilberforce road, Cambridge CB3 0WA, UK
e-mail: g.del-zanna@damtp.cam.ac.uk
2
LESIA, Observatoire de Paris, CNRS, UPMC, UniversitÚ Paris Diderot, 5 place Jules Janssen, 92190 Meudon, France
Received 17 June 2010 / Accepted 27 September 2010
ABSTRACT
We propose a unified interpretation for persistent coronal outflows and metric radio noise storms, two phenomena typically observed
in association with quiescent solar active regions. Our interpretation is based on multi-wavelength observations of two such regions
as they crossed the meridian in May and July 2007. For both regions, we observe a persistent pattern of blue-shifted coronal emission
in high-temperature lines with Hinode/EIS, and a radio noise storm with the Nanšay Radioheliograph. The observations are supple-
mented by potential and linear force-free extrapolations of the photospheric magnetic field over large computational boxes, and by

  

Source: Aulanier, Guillaume - Observatoire de Paris

 

Collections: Physics