Chandra obs. of low-metallicity star-forming gal.

Using Chandra observations of a sample of 30 galaxies at D~200-450Mpc that have high specific star formation rates of 3-9Gyr^-1^ and metallicities near Z~0.3Z_{sun}_, we provide new measurements of the average 0.5-8keV spectral shape and normalization per unit star formation rate (SFR).

We model the sample-combined X-ray spectrum as a combination of hot gas and high-mass X-ray binary (HMXB) populations and constrain their relative contributions. We derive scaling relations of logL_0.5-8keV_^HMXB^/SFR=40.19+/-0.06 and logL_0.5-2keV_^gas^/SFR=39.58_-0.28_^+0.17^; significantly elevated compared to local relations. The HMXB scaling is also somewhat higher than L_0.5-8keV_^HMXB^-SFR-Z relations presented in the literature, potentially due to our galaxies having relatively low HMXB obscuration and young and X-ray luminous stellar populations.