Meridith Joyce

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20242026

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astro-ph.SR2024

A theoretical framework for BL Her stars III. A case study: Robust light curve optimisation in the LMC

Susmita Das, LÃ¡szlÃ³ MolnÃ¡r, GÃ¡bor B. KovÃ¡cs +8

We carry out an extensive light curve comparison of BL Her stars using observations from Gaia DR3 and stellar pulsation models computed using MESA-RSP with the goal to obtain the b…

astro-ph.SR2024

A Buddy for Betelgeuse: Binarity as the Origin of the Long Secondary Period in $I^\pm$ Orionis

Jared A. Goldberg, Meridith Joyce, LÃ¡szlÃ³ MolnÃ¡r

We predict the existence of $I^\pm$ Ori B, a low-mass companion orbiting Betelgeuse. This is motivated by the presence of a 2170-day Long Secondary Period (LSP) in Betelgeuse's lightc…

A theoretical framework for BL Her stars III. A case study: Robust light curve optimisation in the LMC

A Buddy for Betelgeuse: Binarity as the Origin of the Long Secondary Period in I^± Orionis

A Buddy for Betelgeuse: Binarity as the Origin of the Long Secondary Period in $I^\pm$ Orionis