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Line identifications, line strengths, and continuum flux measurements in the ultraviolet spectrum of ArcturusThe ultraviolet spectrum of Arcturus has been observed at high resolution with the IUE satellite. Line identifications, mean absolute 'continuum' flux measurements, integrated absolute emission-line fluxes, and measurements of selected absorption line strengths are presented for the 2250-2930 A region. In the 1150-2000 A region, identifications are given primarily on the basis of low-resolution spectra. Chromospheric emission lines have been identified with low-excitation species including H I, C I, C II, O I, Mg I, Mg II, Al II, Si I, Si II, S I, and Fe II; there is no evidence for lines of C IV, N V, or other species requiring high temperatures. A search for molecular absorption features in the 2500-2930 A interval has led to several tentative identifications, but only OH could be established as definitely present. Iron lines strongly dominate the identifications in the 2250-2930 A region, Fe II accounting for about 86 percent of the emission features and Fe I for 43 percent of the identified absorption features.
Document ID
19850042922
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Carpenter, K. G.
(Ohio State Univ. Columbus, OH, United States)
Wing, R. F.
(Ohio State University Columbus, OH, United States)
Stencel, R. E.
(Joint Institute for Laboratory Astrophysics Boulder, CO, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1985
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 57
ISSN: 0067-0049
Subject Category
Astrophysics
Accession Number
85A25073
Funding Number(s)
CONTRACT_GRANT: NSG-5368
Distribution Limits
Public
Copyright
Other

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