#binary star systems

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2 papers match

astro-ph.SR2026

Long-term high-resolution spectroscopic monitoring of the evolved metal-poor binary PS Gem

V. G. Klochkova, V. E. Panchuk, J. K. Zhao +3

The paper reports three decades of high‑resolution spectroscopic observations of the metal‑poor binary star PS Gem, analyzing Hα line variations and radial velocities to characteri…

#metal-poor stars#binary star systems#spectroscopic monitoring#stellar evolution

astro-ph.EP2026

Disc Fragmentation. III. The need for a new paradigm for formation of planets within close binary systems

Luyao Zhang, Sergei Nayakshin, Clement Baruteau +2

The paper proposes that planets in tight binary systems form concurrently with the binary stars via gravitational fragmentation of massive circumstellar discs, with early‑forming m…

#binary star systems#planet formation#disc fragmentation#planet migration