activity
20242026
most citedAt least one in a dozen stars exhibits evidence of planetary ingestion

34 citations · 35 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.SR2026

The Sun's chemical peculiarity: disentangling Galactic chemical evolution and planetary engulfment in solar twins

Mia Babatsikos, Fan Liu, Amanda Karakas +5

Recent observational studies have suggested that the Sun may be chemically peculiar relative to the majority of solar twins. Here, we re-analyse high-resolution, high signal-to-noi…

astro-ph.SR2025★ 1 cited

Probing Binary Architectures of Lithium-Rich Giants in GALAH with COSMIC and Stellar Models

Maryum Sayeed, Selina Yang, Giulia Cinquegrana +5

Surface lithium is depleted when a star goes through the first dredge-up phase, yet of red giants are found to be Li-rich. The formation mechanism for these remains uncertain…

astro-ph.EP2025

C3PO IV: co-natal stars depleted in refractories are magnetically more active -- possible imprints of planets

Jie Yu, Yuan-Sen Ting, Luca Casagrande +14

Chemical abundance anomalies in twin stars have recently been considered tell-tale signs of interactions between stars and planets. While such signals are prevalent, their nature r…

astro-ph.EP2024

C3PO III: On the Lithium Signatures Following Planet Engulfment by Stars

Qinghui Sun, Yuan-Sen Ting, Fan Liu +8

Planet engulfment has been identified as one of the mechanisms for enhancing lithium abundance in stars. However, comprehensive investigations into lithium signatures following suc…

astro-ph.SR2024★ 34 cited

At least one in a dozen stars exhibits evidence of planetary ingestion

Fan Liu, Yuan-Sen Ting, David Yong +6

Stellar chemical compositions can be altered by ingestion of planetary material and/or planet formation which removes refractory material from the proto-stellar disc. These "planet…

astro-ph.SR2024

Stellar Evolution in Real Time II: R Hydrae and an Open-Source Grid of >3000 Seismic TP-AGB Models Computed with MESA

Meridith Joyce, László Molnár, Giulia Cinquegrana +3

We present a comprehensive characterization of the evolved thermally pulsing asymptotic giant branch (TP-AGB) star R Hydrae, building on the techniques applied in Stellar Evolution…