The low-latitude inner corona of the sun observed by SUMER on SOHO

1999 ◽  
Author(s):  
Klaus Wilhelm
2015 ◽  
Vol 11 (6) ◽  
pp. 492-495 ◽  
Author(s):  
F. Chen ◽  
H. Peter ◽  
S. Bingert ◽  
M. C. M. Cheung
Keyword(s):  
The Sun ◽  

Author(s):  
Takao Saito ◽  
S.-I. Akasofu ◽  
Y. Kozuka ◽  
S. Minami ◽  
S. Tuneta

2016 ◽  
Vol 50 (2) ◽  
pp. 143-160 ◽  
Author(s):  
L. I. Shestakova ◽  
B. I. Demchenko

2004 ◽  
Vol 45 (4) ◽  
pp. 4.26-4.27 ◽  
Author(s):  
V M Nakariakov ◽  
E Verwichte
Keyword(s):  
The Sun ◽  

Science ◽  
1937 ◽  
Vol 86 (2225) ◽  
pp. 8-8
Keyword(s):  
The Sun ◽  

1886 ◽  
Vol 39 (239-241) ◽  
pp. 108-135 ◽  

The sun is the only star the corona of which we have been able to observe, for all other stars are too distant to give true images in the telescope. If the sun were removed to a distance equal to that of the nearest star, its disk would subtend less than the one-hundredth of a second of arc. We have also to consider the small relative brightness of the corona, the light from which has been estimated at different times to be from 1/100000 to about the 1/400000 part of the sun’s light. It is, indeed, possible that stars which have a higher temperature than our sun, are surrounded by coronæ of greater extent and brightness.


Solar Physics ◽  
2006 ◽  
Vol 237 (1) ◽  
pp. 201-210 ◽  
Author(s):  
V. I. Makarov ◽  
A. G. Tlatov ◽  
D. K. Callebaut
Keyword(s):  
The Sun ◽  

1991 ◽  
Vol 130 ◽  
pp. 213-217
Author(s):  
V.I. Makarov ◽  
K.R. Sivaraman

Abstract The global solar cycle is considered as an interaction of 3 types of activity: at low-latitude (sunspots), at high-latitude (polar faculae) and the weak magnetic field. The properties of single and 3-fold reversals of the polar magnetic field are considered. The variation spectrum of the large-scale magnetic field of the Sun is analyzed in the range of 1–30 nHz. A dependence between the rate of a poleward meridional flow and phase of the global cycle is discussed.


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