Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-27T09:12:22.655Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies of red giants in eclipsing binaries

Published online by Cambridge University Press:  25 February 2014

M. Ratajczak ,
M. Konacki  and
K.G. Hełminiak
M. Ratajczak
Affiliation:
Nicolaus Copernicus Astronomical Center, ul. Rabianska 8, 87-100 Torun, Poland
M. Konacki
Affiliation:
Nicolaus Copernicus Astronomical Center, ul. Rabianska 8, 87-100 Torun, Poland Astronomical Observatory, A. Mickiewicz University, ul. Sloneczna 36, 60-286 Poznan, Poland
K.G. Hełminiak
Affiliation:
Nicolaus Copernicus Astronomical Center, ul. Rabianska 8, 87-100 Torun, Poland Pontificia Universidad Catolica de Chile, Av. Vicuna Mackenna 4860, 7820436 Macul, Santiago, Chile
Get access

Abstract

We present absolute physical and orbital parameters for double-lined detached eclipsing binary systems from the All Sky Automated Survey (ASAS) catalogue with subgiant and giant components. The radial velocities were calculated from high quality optical spectra we obtained with the 8.2 m Subaru/hds, ESO 3.6 m/harps, 1.9 m Radcliffe/giraffe, CTIO 1.5 m/chiron, and 1.2 m Euler/coralie using the two-dimensional cross-correlation technique (todcor) and synthetic template spectra chosen for every system separately as references. We checked the evolutionary status of the systems with several sets of evolutionary tracks and determined distances for each system. The derived uncertainties for individual masses and radii of components are better than 3% for several systems. Additionally, we performed atmospheric parameters determination and chemical abundances analysis for the system which spectra we disentangled.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 64: Setting a New Standard in the Analysis of Binary Stars , 2013 , pp. 245 - 248
Copyright
© EAS, EDP Sciences, 2014

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Hełminiak, K.G., Konacki, M., Ratajczak, M., & Muterspaugh, M., 2009, MNRAS, 400, 969CrossRef
Pojmański, G., 2002, AcA, 52, 397
Prša, A., & Zwitter, T., 2005, ApJ, 628, 426CrossRef
Ratajczak, M., Hełminiak, K.G., Konacki, M., & Jordán, A., 2013, MNRAS, 433, 2357CrossRef
Southworth, J., Maxted, P.F.L., & Smalley, B., 2004, MNRAS, 351, 1277CrossRef
Torres, G., Andersen, J., & Gimenéz, A., 2010, A&A Rev., 18, 67PubMed
Valenti, J.A., & Piskunov, N., 1996, A&AS, 118, 595PubMed