SOLAR-CYCLE DEPENDENCE OF POLAR CORONAL HOLES

Authors
DAS TK CHATTERJEE TN SEN AK
Citation
Tk. Das et al., SOLAR-CYCLE DEPENDENCE OF POLAR CORONAL HOLES, Solar physics, 148(1), 1993, pp. 61-64
Citations number
12
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Solar physics → ACNP
ISSN journal
00380938
Volume
148
Issue
1
Year of publication
1993
Pages
61 - 64
Database
ISI
SICI code
0038-0938(1993)148:1<61:SDOPCH>2.0.ZU;2-D
Abstract
A study has been made of the polar coronal holes in relation to solar cycle activity. Important results obtained are: (i) the peak of the fr equency distribution of coronal hole size shifts towards lower values as the solar cycle advances towards maximum, this being true for both the north and south polar holes, (ii) coronal hole size decreases with the increase of sunspot number.