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Oscillator strengths of ultraviolet Ni I lines from hook-method and absorption measurements in a furnaceMeasurements of the oscillator strengths of the ultraviolet lines of neutral nickel obtained by the use of the combined hook and absorption technique are reported. A total of 221 transitions in the range 1964-4094 A was measured for nickel atoms from a high-temperature graphite furnace (2000-2500 K) using a continuum background source, a Mach-Zehnder interferometer and a 3-m Czerny-Turner spectrograph. Hook and absorption measurements are presented, and radiative lifetimes are derived from log gf values. Comparison of the present values with previous results indicates only those of Bell et al. (1966) and Lennard et al. (1975) to consistently agree with the data presented, although the reliability laser-excitation technique of lifetime measurement is supported over that of Hanle methods.
Document ID
19800055959
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Huber, M. C. E.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Sandeman, R. J.
(Harvard-Smithsonian Center for Astrophysics Cambridge, Mass., United States)
Date Acquired
August 10, 2013
Publication Date
June 1, 1980
Publication Information
Publication: Astronomy and Astrophysics
Volume: 86
Issue: 1-2,
Subject Category
Atomic And Molecular Physics
Accession Number
80A40129
Funding Number(s)
CONTRACT_GRANT: NGL-22-007-006
Distribution Limits
Public
Copyright
Other

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