Multiples among detached eclipsing binaries from the ASAS catalog

Abstract

For more than three years now we have been conducting a spectroscopic survey of detached eclipsing binaries (DEBs) from the All-Sky Automated Survey (ASAS) database. Thousands of high-resolution spectra of over 300 systems were secured, and used for radial velocity measurements and spectral analysis. In our sample we found a zoo of multiple systems, such as spectroscopic triples and quadruples, visual binaries with eclipsing components, and circumbinary low-mass companions, including sub-stellar-mass candidates

5 pages, 5 figures, from the proceedings of the "Living Together: Planets, Host Stars and Binaries" conference, Litomysl, Czech Rep. To appear in ASPCS