Multiples among detached eclipsing binaries from the ASAS catalog
K. G. He{\l}miniak, M. Konacki, M. Ratajczak, A. Jord\'an, N., Espinoza, R. Brahm, E. Kambe, N. Ukita

TL;DR
This study presents a spectroscopic survey of over 300 detached eclipsing binaries from the ASAS catalog, revealing a diverse range of multiple star systems including triples, quadruples, and circumbinary companions.
Contribution
It provides the first large-scale spectroscopic analysis of DEBs from ASAS, identifying various multiple star configurations and potential sub-stellar companions.
Findings
Discovery of spectroscopic triples and quadruples
Identification of visual binaries with eclipsing components
Detection of circumbinary low-mass and sub-stellar candidates
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
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astronomical Observations and Instrumentation
