Understanding Balmer Decrements in T Tauri stars in terms of Multiflow Magnetospheric Accretion
Naiara Patiño; Nuria Calvet; Gladis Magris; Marbely Micolta; Thanawuth Thanathibodee; Thomas K. Waters; María José Colmenares · 2026 · arXiv
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Abstract (excerpt)
Magnetospheric accretion is the paradigm for accretion in Classical T-Tauri Stars (CTTS). However, the standard, one-flow magnetospheric accretion model fails to replicate important characteristics such as the observed Balmer decrements. We address this limitation by adopting a model with two axisymmetric magnetospheric accretion flows of different accretion rates and geometries. We calculate the fluxes of the hydrogen $H_α$, $H_β$, and $H_γ$ lines of each flow with the magnetospheric accretion model and use Bayesian statistics to fit the Balmer line fluxes of 139 CTTS in the Orion OB1b subass
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Metadata source: arXiv