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astro-ph.SR2024
HIP 8522: A Puzzling Young Solar Twin with the Lowest Detected Lithium
Jhon Yana Galarza, Diego Lorenzo-Oliveira, Thiago Ferreira +8
We present HIP 8522, a young solar twin with the lowest detected lithium, potentially a field blue straggler or the result of episodic early accretion. Its stellar parameters ($T_{…
astro-ph.SR2024
Detailed abundances of the planet-hosting TOI-1173 A/B system: Possible evidence of planet engulfment in a very wide binary
Jhon Yana Galarza, Henrique Reggiani, Thiago Ferreira +7
Over the last decade, studies of large samples of binary systems identified chemical anomalies, and showed that they might be attributed to planet formation or planet engulfment. H…
astro-ph.EP2024
TOI-1173 A : The First Inflated Super-Neptune in a Wide Binary System
Jhon Yana Galarza, Thiago Ferreira, Diego Lorenzo-Oliveira +8
Among Neptunian mass exoplanets ( M), puffy hot Neptunes are extremely rare, and their unique combination of low mass and extended radii implies very low density ($…