Josh Peek edited authors.tex  almost 8 years ago

Commit id: 9f8a74454472b4da274dce0844a6daf299a87791

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abstract? We present observations toward the star USNO-A0600-15865535. We adapt a standard method of stellar typing to our observations of H$\epsilon$ to show that USNO-A0600-15865535 is indeed a blue horizontal branch star, residing in the lower stellar halo at a distance of 5.2 kpc from the Sun. We measure the H \& K lines of singly-ionized calcium and measure two major components, one originating in the disk, and one associated with Complex WD, thus putting the first distance constraint on Complex WD. We find that Complex WD is not in corotation with the Galactic disk as has been assumed since the early 1990s. We examine a number of scenarios, and find that the most likely is that Complex WD was ejected from the solar neighborhood and is only a few kpc from the Sun.