CHEMICAL COMPOSITION AND ATMOSPHERE PARAMETERS OF THE DOUBLE-MODE CEPHEID U TRA

• Published in: Odessa astronomical publications Vol. 26; no. 1; pp. 127 - 130
• Main Authors: I. A. Usenko, A. Yu. Knyazev, L. N. Berdnikov, V. V. Kravtsov
• Format: Journal Article
• Language: English
• Published: Odessa I. I. Mechnykov National University 01.11.2013

Four high-resolution spectra of the doble-mode Cepheid UTrA have been obtained during its pulsational period. For the first time, we obtained accurate atmosphere parameters and the chemical abundance of a number of elements, in particular of sodium, magnesium, and aluminium. We estimated the mean Teff...