Ganesh N. Pawar

Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences

Session X: Poster session

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

abstract:
Detached Eclipsing Binaries (DEBs) are the key sources of accurate and precise (< 1%) stellar parameters. DEBs, whose analysis leads to stable and robust results can be used as benchmark stars. Benchmark stars are crucial for testing stellar models, calibration and data analysis algorithms used by space-based photometric missions like PLATO.

In our study, we focus on a benchmark candidate UX Men observed in the continuous viewing zone of the Transiting Exoplanet Survey Satellite (TESS), observing the system UX Men for 25 sectors and time-series high-resolution spectroscopic data from the CRÉME project. We are analyzing the stability of lightcurve solutions and investigating factors influencing error rates. The primary goal is to determine the conditions for a DEB to be considered a reliable benchmark in stellar parameter determination. Further, we obtain spectroscopic temperatures using disentangled spectra and compared them with multi-band photometric temperature estimates.