SVIBOR - Papers quoted in CC - project code: 1-04-157
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SVIBOR - Collecting Data on Projects in Croatia
Papers quoted in Current Contents on project 1-04-157
Quoted papers: 2
Other papers: 21
Total: 23
Title: Mirna faza CH Cygni u periodu od 1987-1989
- Authors:
- Kotnik-Karuza, Dubravka (48086)
- Jurdana, Rajka (170374)
- Furić, Miroslav (82964)
Journal: Astronomy and Astrophysics Supplement Series
ISSN: 0365-0138
Volume: 94
Year: 1992
Pages: from 251 to 258
Number of references: 15
Language: engleski
Summary: The optical spectrum of the symbiotic star CH Cygni has
been investigated during the period 1987-1989. The measurements of the
radial velocities of the unblended spectral lines have shown that the
envelope is still expanding, that the absorption lines of both neutral and
once ionized elements are formed in the photosphere of the M6III star and
that the emission Balmer and
FeII lines can be associated with the companion. The blue continuum has
completely dissapeared. Two expanding almost permanent envelopes are
present.
Keywords: CH Cygni, binary stars, symbiotic stars, quiescence, optical spectrum
Title: Istraživanje ostataka provale 1977-1986 u mirnoj fazi CH
Cygni
- Authors:
- Jurdana, Rajka (170374)
- Kotnik-Karuza, Dubravka (48086)
Journal: Astronomy and Astrophysics Supplement Series
ISSN: 0365-0138
Volume: 108
Year: 1994
Pages: from 533 to 545
Number of references: 22
Language: engleski
Summary: The results of spectroscopic measurements in the optical
region of CH Cygni in the quiescent phase 1987-1989 have been presented.
Although in most spectra the flat transition part of the curve of growth
was predominant, a refined fitting procedure made possible the evaluation
of excitation temperature and microturbulent velocity for neutral metals in
the red giant's photosphere. A regular decrease of excitation temperature
has been found suggesting a gradual transition to quiescence.
Microturbulent velocities show small erratic variations arround a mean
value indicating a stratification in the photosphere of the cool component.
Keywords: CH Cygni, binary stars, symbiotic stars, atmosphere, quiescence, physical parameters
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