@conference {23897,
	title = {Classification of X-ray Sources in the Direction of Andromeda Using Optical Spectroscopy},
	volume = {216},
	year = {2010},
	month = {2010/05/1},
	pages = {419.05},
	abstract = {A deep XMM survey has identified hundreds of bright X-ray sources from the direction of Andromeda. These sources are mostly comprised of supernova remnants, X-ray Binaries and background Active Galactic Nuclei (AGN). We have obtained 35 optical spectra of their candidate counterparts using the 3.5-meter telescope at the Apache Point Observatory. After calibrating and extracting the objects{\textquoteright} spectra from the sky background, we{\textquoteright}ve been able to classify 8 as background AGN with red shifts (1.15\&lt; z \&lt;2.11). Preliminary classifications of the 27 others include 9 stars in Andromeda and 1 supernova remnant in Andromeda. With these results we are beginning to constrain the background contamination in the XMM survey and to find good high-mass X-ray binary candidates in Andromeda. Furthermore, future high-resolution spectroscopy of the background AGN may allow detailed absorption studies of the Andromeda interstellar medium. <P />Support for this work has been provided by NASA grant NNX06AF58G, through the XMM-Newton Guest Observer Facility.},
	url = {https://ui.adsabs.harvard.edu/abs/2010AAS...21641905G},
	author = {Green, Jerica M. and Williams, B. F. and Hatzidimitriou, D.}
}
