SDSS J122339.61-005631.1: A Short Period Eclipsing Binary with a White Dwarf Component

SAKER, L., LOVOS, F., PETRUCCI, R., JOFRÉ, GOMEZ, M.

La Serena

Workshop; First Chile-Korea-Gemini Workshop on Stellar Astrophysics: Accretion Processes in Symbiotic Stars and Related Objects; 2016

Gemini Observatory

SDSS J122339.61−005631.1 (hereafter SDSS J1223−0056) is a detached short period (P = 2.1 h) post-common envelope eclipsing binary, formed by a white dwarf plus a main-sequence star. In this work, we present new optical photometry of SDSS J1223−0056, obtained with the 2.15 m Jorge Sahade telescope at the Complejo Astronómico El Leoncito (CASLEO, Argentina). This system, as well as others containing a white dwarf component, are being observed with the aim of detecting eclipsing time variations (ETVs). In this contribution, we report a new initial analysis of this binary system. In addition, we perform an ETV analysis combining our time of eclipse with those previously reported.