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Temperatures in the atmosphere of the cool component of CH Cygni


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: Astronomical Society of the Pacific, 2004. str. 371-373


Naslov
Temperatures in the atmosphere of the cool component of CH Cygni

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

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Spectroscopically and spatially resolving the components of close binary stars

Urednik/ci
Hilditch, Ronald.W. ; Hensberge, Herman ; Pavlovski, Krešimir

Izdavač
Astronomical Society of the Pacific

Grad
San Francisco

Godina
2004

Raspon stranica
371-373

ISBN
1-58381-179-6

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

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0009002

Ustanove
Filozofski fakultet, Rijeka