0 Assigned ID: 1109 ----- Attempting Submission 1 (Wed Feb 27 03:05:37 GMT 2013) ----- Two sharply defined lobes of gamma-ray emission emerging from the center of our Galaxy, called the Fermi Bubbles, have been discovered in the Galactic halo. Their emissivity appears to be uniform and extends up to 8 kpc on either side of the plane. Accompanying the Fermi Bubbles are excess emissions seen in X-rays, microwaves and polarized, low frequency radio emissions. It is generally believed that cosmic ray particles emitted from the central portion of the Galactic disk (or perhaps the nucleus itself) are responsible for these emissions. These particles must have been advected into the halo by a wind or shock. Our COS observations of 5 extragalactic targets behind or near the southern lobe of the Fermi Bubbles will help us to understand the physical nature and kinematics of the gas responsible for this transport. Spectra in the MAST archive for other extragalactic targets in the same part of the sky, plus those of some foreground stars, should offer us further guidance in our interpretation of the primary data obtained from the Cycle 20 observations. ISM AND CIRCUMSTELLAR MATTER Default Medium false true false false false SUPPORTED