Coronal Holes and the Solar Wind
Around the turn of the century Professor Kristian Birkeland at the University of Kristiania (Oslo) carried out laboratory studies of the emission of charged particles from the Sun and their interaction with comets and magnetized planets. He found that cathode rays emitted by a magnetized sphere are...
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Cambridge University Press (CUP)
1992
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Online Access: | http://dx.doi.org/10.1017/s1539299600009990 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1539299600009990 |
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crcambridgeupr:10.1017/s1539299600009990 2023-05-15T16:50:15+02:00 Coronal Holes and the Solar Wind Leer, Egil 1992 http://dx.doi.org/10.1017/s1539299600009990 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1539299600009990 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Highlights of Astronomy volume 9, page 663-664 ISSN 1539-2996 General Medicine journal-article 1992 crcambridgeupr https://doi.org/10.1017/s1539299600009990 2022-04-07T08:06:07Z Around the turn of the century Professor Kristian Birkeland at the University of Kristiania (Oslo) carried out laboratory studies of the emission of charged particles from the Sun and their interaction with comets and magnetized planets. He found that cathode rays emitted by a magnetized sphere are bent toward the equator along trajectories similar to the structures observed in the solar corona during the 1901 eclipse. He also concluded that comet tails are formed by charged particles from the Sun interacting with dust and gas around the comet. Birkeland carried out extensive observing programs of the aurora, geomagnetic storms, and the zodiacal light. During a 9 months campaign from mid 1902 he observed recurrent geomagnetic storms from stations in Northern Norway, at Novaja Semlja, Iceland, and Spitsbergen, and correlated the occurence and periodicity of magnetic storms with solar activity. He found that the period of recurrent geomagnetic storms was generally larger than the period of “near equator” solar phenomena. He also found that “Very often large maxima of storminess are not accompanied by any sun-spots at all”. (Birkeland 1913, p. 524). Article in Journal/Newspaper Iceland Northern Norway Spitsbergen Cambridge University Press (via Crossref) Birkeland ENVELOPE(16.587,16.587,68.594,68.594) Norway Highlights of Astronomy 9 663 664 |
institution |
Open Polar |
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Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Leer, Egil Coronal Holes and the Solar Wind |
topic_facet |
General Medicine |
description |
Around the turn of the century Professor Kristian Birkeland at the University of Kristiania (Oslo) carried out laboratory studies of the emission of charged particles from the Sun and their interaction with comets and magnetized planets. He found that cathode rays emitted by a magnetized sphere are bent toward the equator along trajectories similar to the structures observed in the solar corona during the 1901 eclipse. He also concluded that comet tails are formed by charged particles from the Sun interacting with dust and gas around the comet. Birkeland carried out extensive observing programs of the aurora, geomagnetic storms, and the zodiacal light. During a 9 months campaign from mid 1902 he observed recurrent geomagnetic storms from stations in Northern Norway, at Novaja Semlja, Iceland, and Spitsbergen, and correlated the occurence and periodicity of magnetic storms with solar activity. He found that the period of recurrent geomagnetic storms was generally larger than the period of “near equator” solar phenomena. He also found that “Very often large maxima of storminess are not accompanied by any sun-spots at all”. (Birkeland 1913, p. 524). |
format |
Article in Journal/Newspaper |
author |
Leer, Egil |
author_facet |
Leer, Egil |
author_sort |
Leer, Egil |
title |
Coronal Holes and the Solar Wind |
title_short |
Coronal Holes and the Solar Wind |
title_full |
Coronal Holes and the Solar Wind |
title_fullStr |
Coronal Holes and the Solar Wind |
title_full_unstemmed |
Coronal Holes and the Solar Wind |
title_sort |
coronal holes and the solar wind |
publisher |
Cambridge University Press (CUP) |
publishDate |
1992 |
url |
http://dx.doi.org/10.1017/s1539299600009990 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1539299600009990 |
long_lat |
ENVELOPE(16.587,16.587,68.594,68.594) |
geographic |
Birkeland Norway |
geographic_facet |
Birkeland Norway |
genre |
Iceland Northern Norway Spitsbergen |
genre_facet |
Iceland Northern Norway Spitsbergen |
op_source |
Highlights of Astronomy volume 9, page 663-664 ISSN 1539-2996 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s1539299600009990 |
container_title |
Highlights of Astronomy |
container_volume |
9 |
container_start_page |
663 |
op_container_end_page |
664 |
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1766040428984926208 |