Three Years of ChaMPlane Northern Field WIYN Spectroscopy

We present initial results of WIYN spectroscopic observations of selected objects detected in the Chandra Multiwavelength Plane (ChaMPlane) Survey in fields toward the Galactic anticenter. ChaMPlane is designed to identify low-luminosity X-ray sources, both accretion-powered and stellar coronal, in the Galaxy. It also includes a wide-field optical imaging Survey conducted with the NOAO Mosaic cameras to identify optical counterparts, as well as Hα-selected objects in the ~5 times larger field. We report spectroscopic classifications for 1069 objects in Galactic anticenter (i.e., northern) fields, resulting in 612 type determinations. These include 5 new cataclysmic variables, 4 Be stars, 14 lithium-absorption stars, 182 stellar coronal sources (primarily dMe stars), and 30 new quasars. Bright optical counterparts of Chandra sources in this sample are most frequently dMe stars, whereas a majority of the faintest (R > 20.5 mag) spectroscopically classified Chandra source counterparts are quasars. The bulk of Hα-selected sources appears to be roughly evenly divided between dMe stars and M stars at all magnitudes.