Naslov
Spectroscopic analysis of eclipsing SB2 stars: a case study

Autori
Lehmann, H. ; Southworth, J. ; Tkachenko, A. ; Pavlovski, K. ; Maceroni, C. ; Ak, H.

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Setting a new standard in the analysis of binary stars, EAS Publication Series, Vol. 64 / Pavlovski, K. ; Tkachenko, A. ; Torres, G. - Pariz : EDP Sciences, 2013, 219-227

ISBN
978-2-7598-1161-8

Skup
Setting a new standard in the analysis of binary stars

Mjesto i datum
Leuven, Belgija, 16.09.2013. - 19.09.2013

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
stellar astrophysics; binary stars; pulsating stars; spectroscopy; stellar evolution

Sažetak
The investigation of eclipsing spectroscopic binaries provides basic parameters of stars in a direct way. Whereas the measurable absolute masses can be used to calibrate stellar evolutionary scenarios, the effective temperatures derived from spectroscopic analysis are an important input to light curve and asteroseismic modelling. We compare different methods for investigating eclipsing SB2 stars focusing on radial velocity determination and spectrum decomposition and analysis. Used methods are the two-dimensional cross-correlation technique todcor, spectral disentangling with the Fourier transform-based korel program, and a grid search-based method of spectrum analysis using spectrum synthesis. The study is based on the investigation of two eclipsing SB2 stars observed by the Kepler satellite mission.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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