The Solaris Photometric Survey: Detection of circumbinary companions using eclipse timing


Ayush Moharana

Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences

Session X: Poster session

Thursday 14th September 2023 12:00 – 13:00

abstract:
Eclipse timing variations (ETV) have been a successful tool for detecting circumbinary companions to eclipsing binaries (EB).
We present the initial results from the Solaris photometric survey which uses four 0.5m robotic telescopes in the southern hemisphere to look for circumbinary companions. We present the method of light curve extraction, detrending, and EB modeling using the observations from the Solaris network.
Using these light curves we extract precise ETV for 8 EB and look for companions using a Lomb-Scargle periodogram search. We report the detection of a few circumbinary companions and try to characterize them.