Authors: Carl Melis, B. Zuckerman, P. Dufour, I. Song, B. Klein
Abstract: We present the first metal-polluted single white dwarf star identified through Gaia DR2. GaiaJ1738-0826, selected from color and absolute magnitude cuts in the Gaia DR2 data, was discovered to have strong Ca~II absorption in initial spectroscopic characterization at Lick Observatory. Notably, GaiaJ1738-0826 resembles in many ways the first confirmed metal-polluted hydrogen atmosphere white dwarf, the DAZ G74-7.
My Comment: Really short article - mainly just an observation confirmation, but it makes use of GAIA DR2 to identify a candidate "weird" object, and then confirms what it is with follow-up observations, in this case spectra. I love this stuff, and wanted to grab a short GAIA DR2 paper to get started thinking about science that can be done with the data. Hint: it is a lot. Very a lot.
My Scrawling Notes:
