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Temperatures in the atmosphere of the cool component of CH Cygni (CROSBI ID 31292)

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Jurdana-Šepić, Rajka ; Kotnik-Karuza, Dubravka ; Majlinger, Zlatko ; Pavlenko, Yakiv V. Temperatures in the atmosphere of the cool component of CH Cygni // Spectroscopically and spatially resolving the components of close binary stars / Hilditch, Ronald.W. ; Hensberge, Herman ; Pavlovski, Krešimir (ur.). San Francisco (CA): Astronomical Society of the Pacific (ASP), 2004. str. 371-373

Podaci o odgovornosti

Jurdana-Šepić, Rajka ; Kotnik-Karuza, Dubravka ; Majlinger, Zlatko ; Pavlenko, Yakiv V.

engleski

Temperatures in the atmosphere of the cool component of CH Cygni

We have investigated the temperatures in the atmosphere of the cool component of CH Cygni by use of highly resolved optical and near infrared spectra taken in a short epoch of the 1998-2000 active phase. TiO absorption bands belonging to α , γ , γ ', β , δ , φ and ε band systems with partly resolved rotational structure have been studied and vibrational temperatures belonging to γ 'and φ system were obtained from the relative intensities of vibrational band heads. In order to determine the effective temperature we used model atmospheres appropriate for M giants and computed synthetic spectra by line-to-line approach. Results have been discussed in view of the previously determined rotational temperature.

CH Cyg, optical spectrum, late-type star, TiO absorption, temperature

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Podaci o prilogu

371-373.

objavljeno

Podaci o knjizi

Spectroscopically and spatially resolving the components of close binary stars

Hilditch, Ronald.W. ; Hensberge, Herman ; Pavlovski, Krešimir

San Francisco (CA): Astronomical Society of the Pacific (ASP)

2004.

1-58381-179-6

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Fizika

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