WE PROPOSE FOR A 30 KS XMM AND 200 KS NUSTAR OBSERVATION OF VV114 A UNIQUE LOW-METALLICITY GALAXY (0.3 ZSOL) WITH HIGH- SFR (SFR = 38 MSOL/YR.). WE WILL MEASURE HO THE SHAPE AND NORMALIZATION OF THE 0.3-30 KEV SPECTRAL ENERGY DISTRIBUTION OF VV114 COMPARES WITH MORE TYPICAL SOLAR-METALLICITY GALAXIES IN THE NEARBY UNIVERSE THAT HAVE SEDS CHARACTERIZED BY NUSTAR (E.G. M83 NGC 253 NGC 3256 AND NGC 3310). OUR OBSERVATIONS WILL PROVIDE AN IMPORTANT BENCHMARK FOR HOW THE X-RAY SED VARIES WITH METALLICITY AND THUS HOW THE X-RAY SEDS OF GALAXIES ARE EXPECTED TO VARY WITH REDSHIFT. THIS WILL ALLOW FOR MORE INFORMED BANDPASS AND BOLOMETRIC CORRECTIONS TO HIGH-REDSHIFT GALAXY STUDIES AND POPULATION SYNTHESIS MODELS AND WILL INFORM STUDIES OF X-RAY HEATING OF THE EARLY UNIVERSE IGM.

University Of Arkansas, Fayetteville AR

Investigators