The Uniformity of the Local Hot Bubble and A Pervasive Hot Medium

Models of the Local Hot Bubble (LHB) assume a uniform temperature and density.ROSAT, and limited XMM, and Suzaku observations suggest this is not the case,but the source of the nonuniformity is unknown. We have shown that one can useXMM spectra to isolate the emission due to the LHB without using a nearbyabsorbing cloud. We propose to measure the nonuniformity of the LHB, thusproviding insights into the nature and origin of the LHB, the issue of SolarWind Charge Exchange (SWCX) contribution to the LHB emission, and the nature ofthe diffuse emission external to the LHB. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]