Physical parameters of components in close binary systems. I

¹ Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland
² David Dunlap Observatory, University of Toronto, PO Box 360, Richmond Hill, Ontario, L4C 4Y6, Canada
³ Astronomical Observatory of the Jagiellonian University, ul. Orla 171, 30-244 Cracow, Poland
⁴ Department of Astrophysics, Astronomy and Mechanics, Faculty of Physics, University of Athens, Panepistimiopolis, 15784 Zografos, Athens, Greece
⁵ N. Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, Poland
⁶ Torun Centre for Astronomy, ul. Gagarina 11, 87-100 Torun, Poland
⁷ Department of Physics, Shoumen University, 9700 Shoumen, Bulgaria

Corresponding author: J. M. Kreiner, sfkreine@cyf-kr.edu.pl

Received: 19 June 2003
Accepted: 12 September 2003

Abstract

The paper presents combined spectroscopic and photometric orbital solutions for four close binary systems: SW Lyn, QW Gem, AP Leo and V2150 Cyg. The photometric data are new, while the spectroscopy has been recently obtained within the radial velocity programme at the David Dunlap Observatory. This paper is the first in the planned series of investigations. We give an extensive description of the motivation for the series and of the main assumptions made in our solutions. The four targets of this investigation span a range of typical configurations and thus present different levels of difficulty for the combined spectroscopic and photometric orbital solutions.