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Nebular spectrum of PU Vul in 2004

Title
Nebular spectrum of PU Vul in 2004
Authors
Yoo, Kye-Hwa
Ewha Authors
유계화
SCOPUS Author ID
유계화scopus
Issue Date
2007
Journal Title
JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY
ISSN
1225-4614JCR Link
Citation
vol. 40, no. 2, pp. 39 - 47
Keywords
symbiotic star : PU Vulhigh resolution spectrum : line variationsgeometrical structure
Publisher
KOREAN ASTRONOMICAL SOCIETY
Indexed
SCIE; SCOPUS; KCI WOS
Abstract
A high resolution spectrum of PU Vul obtained at Bohyunsan Astronomy Observatory on April 9, 2004 is presented. At this phase, PU Vul was an emission-line star and its continuum was very weak. Emission lines of He II, H I, [Ne IV], [N II], [O III], [Ar V] and [Fe VII] dominated the spectrum of PU Vul. Many of them exhibited hat-top profiles with strong and multi-peaked emissions on flat-tops of their profiles. Radial velocities for these lines were measured. Origins of the spectral lines are discussed in terms of the wind and the photoionization models.
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사범대학 > 과학교육과 > Journal papers
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