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CH Cygni in 2004 - II: Nebular spectrum features

Title
CH Cygni in 2004 - II: Nebular spectrum features
Authors
Yoo K.H.
Ewha Authors
유계화
SCOPUS Author ID
유계화scopus
Issue Date
2007
Journal Title
New Astronomy
ISSN
1384-1076JCR Link
Citation
vol. 12, no. 7, pp. 569 - 577
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We report in a series on the spectra of CH Cygni obtained in October 2004 in this paper. The spectra showed emission lines of H I, [O I], [O III], [N II], [Ne III] and Fe II: most of them became stronger than those obtained in April 2004. In order to retrieve the intrinsic emission profile, we removed the underlying M-type spectrum and telluric lines of O2 from the spectra. Then, we deconvoluted the resulting Hα and [O III] profiles into several Gaussian functions. Radial velocities of all lines observed in October 2004 were measured. Results are compared with those in April 2004, and are discussed by way of an accretion disk and a circumstellar model. © 2007 Elsevier B.V. All rights reserved.
DOI
10.1016/j.newast.2007.03.007
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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