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High-velocity Circumstellar Gas Orbiting a White Dwarf Star

  • Authors: B. Zuckerman, Érika Le Bourdais, Beth L. Klein, Patrick Dufour, Carl Melis, Alycia J. Weinberger, Siyi Xu, 偲艺 许, Antoine Bédard, Detlev Koester

B. Zuckerman et al 2026 The Astrophysical Journal 1004 .

  • Provider: AAS Journals

Caption: Figure 4.

WD J0234-0406 (black) vs the featureless white dwarf calibration star EGGR 180 (red). The deep narrow features are photospheric. The shallower, broader features are circumstellar. Identification of a few prominent lines: 3349.03 and 3349.40 doublet, 3361.21, and 3272.79 Ti II. 3368.04 Cr II. 3380.11 Fe I. 3390–3396 is a blend of lines (see Table 4).

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