Image Details
Caption: Figure 7.
Weak Ca IR triplet emission (mentioned by GF21) as measured with HIRES (black) and MagE (red). The dip in the HIRES spectrum at 8520 Å is due to a bad column in the red HIRES detector and not an absorption feature in the white dwarf spectrum.
© 2026. The Author(s). Published by the American Astronomical Society.