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A gigantic coronal jet ejected from a compact active region in a coronal holeA gigantic coronal jet greater than 3 x 10(exp 5) km long (nearly half the solar radius) has been found with the soft X-ray telescope (SXT) on board the solar X-ray satellite, Yohkoh. The jet was ejected on 1992 January 11 from an 'anemone-type' active region (AR) appearing in a coronal hole and is one of the largest coronal X-ray jets observed so far by SXT. This gigantic jet is the best observed example of many other smaller X-ray jets, because the spatial structures of both the jet and the AR located at its base are more easily resolved. The range of apparent translational velocities of the bulk of the jet was between 90 and 240 km s(exp -1), with the corresponding kinetic energy estimated to be of order of 10(exp 28) ergs. A detailed analysis reveals that the jet was associated with a loop brightening (a small flare) that occurred in the active region. Several features of this observation suggest and are consistent with a magnetic reconnection mechanism for the production of such a 'jet-loop-brightening' event.
Document ID
19950030777
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Shibata, K.
(National Astronomical Observatory Tokyo, Japan)
Nitta, N.
(Lockheed Palo Alto Research Laboratory, Palo Alto, CA United States)
Strong, K. T.
(Lockheed Palo Alto Research Laboratory, Palo Alto, CA United States)
Matsumoto, R.
(University of Texas, Austin, TX United States)
Yokoyama, T.
(National Astronomical Observatory Tokyo, Japan)
Hirayama, T.
(National Astronomical Observatory Tokyo, Japan)
Hudson, H.
(University of Hawaii, Honolulu, HI United States)
Ogawara, Y.
(Institute of Space and Astronautical Science Kanagawa, Japan)
Date Acquired
August 16, 2013
Publication Date
August 10, 1994
Publication Information
Publication: The Astrophysical Journal, Part 2 - Letters
Volume: 431
Issue: 1
ISSN: 0004-637X
Subject Category
Solar Physics
Accession Number
95A62376
Distribution Limits
Public
Copyright
Other

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