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TiO Bands and Effective Temperature Scales of M Giants


Kotnik-Karuza, Dubravka; Jurdana-Šepić, Rajka
TiO Bands and Effective Temperature Scales of M Giants // Astronomische Gesellschaft Abstract Series 2001 / Schielicke, R.E. (ur.).
München: Astronomische Gesellschaft, 2001. str. 143-144 (poster, međunarodna recenzija, sažetak, znanstveni)


Naslov
TiO Bands and Effective Temperature Scales of M Giants

Autori
Kotnik-Karuza, Dubravka ; Jurdana-Šepić, Rajka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Astronomische Gesellschaft Abstract Series 2001 / Schielicke, R.E. - München : Astronomische Gesellschaft, 2001, 143-144

Skup
Joint European and National Astronomical Meeting for 2001 - JENAM 2001. 10^th European and 75^th Annual Assembly of Astronomische Gesellschaft

Mjesto i datum
Minhen, Njemačka, 10.9.-15.9.2001

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Atmosfere zvijezda; M divovi
(Stellar atmospheres; M type giants)

Sažetak
We present spectroscopic observations of 10 M type giants for which data in the near IR range lambda 7900-9400 angstrom are available. They are members of a star sample located in the Galactic plane. The measured relative intensities of TiO bands belonging to the gamma, delta, epsilon and phi molecular band systems have lead us to the determination of vibrational excitation temperatures of the corresponding absorption layers. In view of these results and by assuming LTE conditions in stellar atmospheres we discuss different Teff calibration scales for M type stars and draw conclusions on atmospheric thermal structure and stellar radii for the selected members of the observed star sample.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
009026

Ustanove
Filozofski fakultet, Rijeka