A coronal hole and its identification as the source of a high velocity solar wind stream

X-ray images of the solar corona showed a magnetically open structure in the low corona which extended from N20W20 to the south pole. Analysis of the measured X-ray intensities shows the density scale heights within the structure to be typically a factor of two less than that in the surrounding larg...

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Main Authors: Krieger, A. S., Timothy, A. F., Roelof, E. C.
Format: Other/Unknown Material
Language:unknown
Published: 1973
Subjects:
29
South Pole
South pole
Online Access:http://ntrs.nasa.gov/search.jsp?R=19740046559
id ftnasantrs:oai:casi.ntrs.nasa.gov:19740046559
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19740046559 2023-05-15T18:22:15+02:00 A coronal hole and its identification as the source of a high velocity solar wind stream Krieger, A. S. Timothy, A. F. Roelof, E. C. Unclassified, Unlimited, Publicly available Apr 1, 1973 http://ntrs.nasa.gov/search.jsp?R=19740046559 unknown http://ntrs.nasa.gov/search.jsp?R=19740046559 Accession ID: 74A29309 Copyright Other Sources 29 Solar Physics; 29; Apr. 197 1973 ftnasantrs 2012-02-15T11:52:09Z X-ray images of the solar corona showed a magnetically open structure in the low corona which extended from N20W20 to the south pole. Analysis of the measured X-ray intensities shows the density scale heights within the structure to be typically a factor of two less than that in the surrounding large scale magnetically closed regions. The structure is identified as a coronal hole. Wind measurements for the appropriate period were traced back to the sun by the method of instantaneous ideal spirals. A striking agreement was found between the Carrington longitude of the solar source of a recurrent high velocity solar wind stream and the position of the hole. Other/Unknown Material South pole NASA Technical Reports Server (NTRS) South Pole
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 29
spellingShingle 29
Krieger, A. S.
Timothy, A. F.
Roelof, E. C.
A coronal hole and its identification as the source of a high velocity solar wind stream
topic_facet 29
description X-ray images of the solar corona showed a magnetically open structure in the low corona which extended from N20W20 to the south pole. Analysis of the measured X-ray intensities shows the density scale heights within the structure to be typically a factor of two less than that in the surrounding large scale magnetically closed regions. The structure is identified as a coronal hole. Wind measurements for the appropriate period were traced back to the sun by the method of instantaneous ideal spirals. A striking agreement was found between the Carrington longitude of the solar source of a recurrent high velocity solar wind stream and the position of the hole.
format Other/Unknown Material
author Krieger, A. S.
Timothy, A. F.
Roelof, E. C.
author_facet Krieger, A. S.
Timothy, A. F.
Roelof, E. C.
author_sort Krieger, A. S.
title A coronal hole and its identification as the source of a high velocity solar wind stream
title_short A coronal hole and its identification as the source of a high velocity solar wind stream
title_full A coronal hole and its identification as the source of a high velocity solar wind stream
title_fullStr A coronal hole and its identification as the source of a high velocity solar wind stream
title_full_unstemmed A coronal hole and its identification as the source of a high velocity solar wind stream
title_sort coronal hole and its identification as the source of a high velocity solar wind stream
publishDate 1973
url http://ntrs.nasa.gov/search.jsp?R=19740046559
op_coverage Unclassified, Unlimited, Publicly available
geographic South Pole
geographic_facet South Pole
genre South pole
genre_facet South pole
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19740046559
Accession ID: 74A29309
op_rights Copyright
_version_ 1766201643505811456

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