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Abstract New radial velocity and photometric data for DU Leonis have been obtained, and Roche-based simultaneous analysis of RV and light curve data for DU Leo has been accomplished for… Click to show full abstract
Abstract New radial velocity and photometric data for DU Leonis have been obtained, and Roche-based simultaneous analysis of RV and light curve data for DU Leo has been accomplished for the first time, using the 2003 and 2015 versions of the Wilson-Devinney code. Values for the masses and radii have been obtained: M1 = 0.937 (5) Mʘ, M2 = 0.921 (5) Mʘ, and R1 = 1.25 (1) Rʘ, R2 = 1.21 (1) Rʘ. For the luminosities the most likely values are L1 = 1.66 (3) Lʘ and L2 = 1.50 (3) Lʘ. Both stars are at or near the end of hydrogen-burning in the cores, and are moving toward the red giant phase.
Journal Title: New Astronomy
Year Published: 2021
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