Sun-as-a-star Hα spectra show location-dependent signatures (blueshifted/redshifted emission for limbs, absorptions for disks, timing and wing differences by front/far side and active/quiet regions) that can diagnose stellar eruption source regions.
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Can We Distinguish the Source Region Location of Filament/Prominence Eruptions from the Sun-as-a-star H$\alpha$ Spectrum?
Sun-as-a-star Hα spectra show location-dependent signatures (blueshifted/redshifted emission for limbs, absorptions for disks, timing and wing differences by front/far side and active/quiet regions) that can diagnose stellar eruption source regions.