8 papers
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…
A universal brown dwarf desert formed between planets and stars
Kaiming Cui, Guang-Yao Xiao, Fabo Feng +10
Giant planets and brown dwarfs play a crucial role in star and planet formation, as they are situated at the boundary between planets and stars with uncertain formation mechanisms.…
Gaia24ccy: An outburst followed the footsteps of its predecessor
Koshvendra Singh, Joe P. Ninan, Zhen Guo +25
Accretion-driven outbursts in young stellar objects remain poorly understood, largely limited by a statistically small sample of closely followed-up events. This underscores the im…
Observational Signatures of Planetary Tidal Disruption Events Around Solar-Mass Stars
MatÃas Montesinos, Sergei Nayakshin, Vardan Elbakyan +4
The tidal disruption of planets by their host stars represents a growing area of interest in transient astronomy, offering insights into the final stages of planetary system evolut…
VVV-WIT-13: an eruptive young star with cool molecular features
Zhen Guo, Philip Lucas, Sergey N. Yurchenko +27
Here we investigate an infrared eruptive source, identified from the decade-long VISTA Variables in the Via Lactea survey (VVV). We named this target after a group of variable sour…
Episodic accretion in high-mass star formation: An analysis of thermal instability for axially symmetric disks
Vardan Elbakyan, Dennis Wehner, Rolf Kuiper +3
High-mass young stellar objects exhibit episodic accretion bursts similar to their low-mass counterparts. Understanding these outbursts is crucial for elucidating massive star form…