Pandora.s box of ''normal.. galaxies

This proposal aims at confirming our claim that high Xray luminosity normalgalaxies, discovered in deep XMMNewton and Chandra surveys and classified asnew classes of exotic objects (OLEGs, Fossil Groups, XBONGs, Elusive AGNs.),were already present in earlier and much brighter samples. We argue that theseunusual. populations are actually the lowflux counterparts of the nearby andXray bright galaxies that have been known for the last two decades. We proposeto observe an Xray flux limited sample from the EMSS high Lx normal galaxies toderive their detailed spectral and morphological properties, to determine areliable estimate of the number density of the population, and to provide astatistical basis for classifying the objects found in deeper surveys. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]