Multiples among detached eclipsing binaries from the ASAS catalog

27 Feb 2015  ·  Hełminiak K. G., Konacki M., Ratajczak M., Jordán A., Espinoza N., Brahm R., Kambe E., Ukita N. ·

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 read more

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Solar and Stellar Astrophysics