Testing the Paradigm of the Wind-driven Evolution of Dwarf Galaxies

Dwarf galaxies are the most susceptible to energetic feedback from massivestars, and are the most plausible sources of the early heating and enrichment ofthe IGM by galactic winds. Xray data are vital to study this process, as theyare the most direct probe of the hot gas that contains the majority of theoutflowing energy and metals. NGC 1705 is the prototypical example of astarburstblown bubble blowingout of the ISM. We propose to obtain XMMNewtonimaging spectroscopy of this galaxy. In conjunction with our existing FUSE andHST farUV spectroscopy, these data will directly test the standard paradigm forthe dynamical evolution of superbubbles and winds in dwarf galaxies andelucidate the physical origin and longterm fate of the hot Xrayemitting gas. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]