2 papers
astro-ph.SR2026
Extremely Low Mass Ratio Contact Binaries. III. Photometric and Spectroscopic Investigations of Eleven Systems
Youmo Lai, Kai Li, Raul Michel Murillo +6
We present photometric and spectroscopic investigations of 11 totally eclipsing contact binaries with mass ratios below 0.15, classifying them as extremely low mass ratio contact b…
astro-ph.GA2026
CCD () photometry of the open cluster NGC 6793 and its dynamical evolution
Zahra Al, Yüksel Karataş, Raul Michel Murillo +4
We present new astrophysical parameters for the open cluster NGC~6793 based on new CCD photometry. We derived a reddening of ~mag and a heavy…