Erratum
Author(s) -
N. Brynildsen,
P. Maltby,
P. Brekke,
T. Fredvik,
S. V. H. Haugan,
O. KjeldsethMoe,
Ø. Wikstøl
Publication year - 1998
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/311589
Subject(s) - computer science
Bright EUV sunspot plumes have been observed in eight out of eleven differentsunspot regions with the Coronal Diagnostic Spectrometer -- CDS on SOHO. Fromwavelength shifts we derive the line-of-sight velocity, relative to the averagevelocity in the rastered area, 120 arcsec x 120 arcsec. In sunspot plumes wefind that the motion is directed away from the observer and increases withincreasing line formation temperature, reaches a maximum between 15 and 41km~s$^{-1}$ close to log T $\approx$ 5.5, then decreases abruptly. The flowfield in the corona is not well correlated with the flow in the transitionregion and we discuss briefly the implication of this finding.Comment: 11 pages, 4 figure
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