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Hydrogen-line Emission in Accreting Low-mass Objects. I. Spectral Analysis of Shock-origin Narrow Component

  • Authors: Yuhiko Aoyama, Jun Hashimoto, Gabriel-Dominique Marleau, Carlo F. Manara, Juan Manuel Alcalá, Gregory Herczeg, Camille Bergez-Casalou, Masahiro Ikoma

Yuhiko Aoyama et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 7.

Comparison between the accretion luminosities derived in this work (Lacc) and those adopted from the literature (Lacc,CASPAR). Upper panel: direct comparison of the two estimates, with the shock-model-derived values on the horizontal axis and the literature-based values on the vertical axis. Lower panel: ratio of Lacc,CASPAR to Lacc as a function of object mass. The literature-based values are systematically smaller, reflecting the fact that the conventional definition of Lacc is tied primarily to the UV-continuum excess and does not fully account for other emission channels.

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