First double red giant Algol system with active mass transfer

arXiv:2607.17552 · astro-ph.SR · Submitted 2026-07-20 · Read on arXiv

Mikhail Kovalev, Hailiang Chen, Sufen Guo, Jiao Li, Hongwei Ge, Dengkai Jiang, Marina Burlak, Natalia Ikonnikova, Xuefei Chen, Zhanwen Han

astro-ph.SR

Submitted: 2026-07-20

Comments: Accepted in Astronomical Journal, wasn't considered interesting for Nature Astronomy

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Chinese Academy of Sciences — 6× in this paper
• Aperture — 5× in this paper · explained in 1 episode
• Abundance — 3× in this paper · explained in 1 episode
• Angular Momentum Loss — 3× in this paper · explained in 1 episode
• Aperture Photometry — 3× in this paper · explained in 1 episode
• Degeneracy — 2× in this paper · explained in 3 episodes
• Metallicity — 2× in this paper · explained in 3 episodes
• Verification — 2× in this paper · explained in 2 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Caucasian Mountain Observatory — 1× in this paper
• Consistency — 1× in this paper · explained in 3 episodes
• European Space Agency — 1× in this paper
• Mikulski Archive for Space Telescopes — 1× in this paper
• Population Synthesis — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Gaia Data Release 3: Summary of the content and survey properties
• LAMOST Medium-Resolution Spectroscopic Survey (LAMOST-MRS): Scientific goals and survey plan
• PARSEC V2.0: Stellar tracks and isochrones of low and intermediate mass stars with rotation

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