Mukai, K.Pence, W. D.Snowden, S. L.Kuntz, K. D.2020-11-192020-11-19Mukai, K.; Pence, W. D.; Snowden, S. L.; Kuntz, K. D.; Chandra Observation of Luminous and Ultraluminous X-ray Binaries in MIOI (2020); https://ntrs.nasa.gov/api/citations/20020070804/downloads/20020070804.pdfhttp://hdl.handle.net/11603/20103X-ray binaries in the Milky Way axe among the brightest objects on the Xray sky. With the increasing sensitivity of recent missions, it is now possible to study X-ray binaries in nearby galaxies. We present data on six ultraluminous binaries in the nearby spiral galaxy, M101, obtained with Chandra ACIS-S. Of these, five appear to be similar to ultraluminous sources in other galaxies, while the brightest source, P098, shows some unique characteristics. We present our interpretation of the data in terms of an optically thick outflow, and discuss implications.14 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Public Domain Mark 1.0This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Text