Measurements of outflow from the base of solar coronal holes

1982 ◽  
Vol 260 ◽  
pp. 326 ◽  
Author(s):  
G. J. Rottman ◽  
F. Q. Orrall ◽  
J. A. Klimchuk
Keyword(s):  
Coronal Holes ◽  
Solar Coronal

Models for Solar Coronal Holes.

1978 ◽  
Author(s):  
George L. Withbroe
Keyword(s):  
Coronal Holes ◽  
Solar Coronal

Heating solar coronal holes

1991 ◽  
Vol 372 ◽  
pp. 719 ◽  
Author(s):  
E. N. Parker
Keyword(s):  
Coronal Holes ◽  
Solar Coronal

scholarly journals THE FIRST STRAY LIGHT CORRECTED EXTREME-ULTRAVIOLET IMAGES OF SOLAR CORONAL HOLES

2012 ◽  
Vol 749 (1) ◽  
pp. L8 ◽  
Author(s):  
Paul Shearer ◽  
Richard A. Frazin ◽  
Alfred O. Hero III ◽  
Anna C. Gilbert
Keyword(s):  
Extreme Ultraviolet ◽  
Coronal Holes ◽  
Stray Light ◽  
Solar Coronal

Periodic processes and plasma motions in solar coronal holes

2007 ◽  
Vol 51 (9) ◽  
pp. 773-779 ◽  
Author(s):  
N. I. Kobanov ◽  
A. A. Sklyar
Keyword(s):  
Coronal Holes ◽  
Periodic Processes ◽  
Solar Coronal

A 600-day periodicity in solar coronal holes

Nature ◽  
1992 ◽  
Vol 360 (6402) ◽  
pp. 322-324 ◽  
Author(s):  
P. S. Mclntosh ◽  
R. J. Thompson ◽  
E. C. Willock
Keyword(s):  
Coronal Holes ◽  
Solar Coronal

scholarly journals Soft X-ray emission as diagnostics for Maunder minimum stars

2011 ◽  
Vol 7 (S286) ◽  
pp. 346-349
Author(s):  
Katja Poppenhaeger ◽  
Jürgen H. M. M. Schmitt
Keyword(s):  
Low Temperature ◽  
Main Sequence ◽  
Coronal Holes ◽  
Maunder Minimum ◽  
Coronal Plasma ◽  
X Ray ◽  
Chromospheric Activity ◽  
Chromospheric Emission ◽  
Solar Coronal

AbstractThe identification of stars in a Maunder minimum state purely from their chromospheric emission (for example in Ca II lines) has proven to be difficult. Photospheric contributions, metallicities and possible deviations from the main sequence stage may lead to very low values of the traditional chromospheric activity indicators, while no Maunder minimum state may be present. X-ray observations can be a key tool for identifying possible Maunder minimum stars: We have detected very soft X-ray emission from low-temperature coronal plasma, similar to emission from solar coronal holes, in several stars with very low chromospheric activity indicators. The coronal properties inferred from X-ray observations can therefore yield a crucial piece of information to verify Maunder minimum states in stars.

Sign in / Sign up

Export Citation Format

Share Document