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Quantitative Spectroscopic Diagnostics for FU Orionis-type Young Stellar Objects

  • Authors: Evan R. Portnoi, Lynne A. Hillenbrand, Adolfo S. Carvalho

Evan R. Portnoi et al 2026 The Astrophysical Journal 1005 .

  • Provider: AAS Journals

Caption: Figure 11.

Hydrogen line strengths in Paβ 1.28 μm and Brγ 2.17 μm EWs, illustrating wind-sensitive spectral features in the near-infrared. FUOrs generally have a strong Paβ 1.28 μm absorption signature (typically blueshifted), but Brγ 2.17 μm is less likely to exhibit absorption.

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