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Recurring Planetary Debris Transits and Circumstellar Gas around White Dwarf ZTF J0328–1219

  • Authors: Zachary P. Vanderbosch, Saul Rappaport, Joseph A. Guidry, Bruce L. Gary, Simon Blouin, Thomas G. Kaye, Alycia J. Weinberger, Carl Melis, Beth L. Klein, B. Zuckerman, Andrew Vanderburg, J. J. Hermes, Ryan J. Hegedus, Matthew. R. Burleigh, Ramotholo Sefako, Hannah L. Worters, and Tyler M. Heintz

2021 The Astrophysical Journal 917 41.

  • Provider: AAS Journals

Caption: Figure 9.

The continuum-normalized MIKE spectrum (solid black) of ZTF J0328−1219 near various lines with measured velocities (see Table 7). For the λ8542 Ca triplet component, we also show the continuum-normalized, lower-resolution SOAR spectrum (dashed red), which detects the same feature. The λλ3933 and 3968 panels (Ca-II K and H, respectively) highlight the narrow line components but also exhibit a small portion of the broad components of these lines that cause the upward slopes away from line center. Vertical lines denote the measured velocities of the Na and Hα features from MIKE spectra, with the dashed line showing the 37.4 km s−1 velocity of the Na lines and the dashed–dotted line showing the 58.8 km s−1 velocity of the Hα feature.

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