<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Green, Jerica M.</style></author><author><style face="normal" font="default" size="100%">Williams, B. F.</style></author><author><style face="normal" font="default" size="100%">Hatzidimitriou, D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Classification of X-ray Sources in the Direction of Andromeda Using Optical Spectroscopy</style></title><short-title><style face="normal" font="default" size="100%">American Astronomical Society Meeting Abstracts #216</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2010/05/1</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://ui.adsabs.harvard.edu/abs/2010AAS...21641905G</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">216</style></volume><pages><style face="normal" font="default" size="100%">419.05</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">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' spectra from the sky background, we've been able to classify 8 as background AGN with red shifts (1.15&amp;lt; z &amp;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. &lt;P /&gt;Support for this work has been provided by NASA grant NNX06AF58G, through the XMM-Newton Guest Observer Facility.</style></abstract></record></records></xml>