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We investigate the connection between galactic outflows and star formationusing two independent data sets covering a sample of 22 galaxies between $1\lesssim z \lesssim 1.5$. The HST WFC3/G141 grism provides low spectralresolution, high spatial resolution spectroscopy yielding H$\alpha$ emissionline maps from which we measure the spatial extent and strength of starformation. In the rest-frame near-UV, Keck/DEIMOS observes Fe II and Mg IIinterstellar absorption lines, which provide constraints on the intensity andvelocity of the outflows. We compare outflow properties from individual andcomposite spectra with the star formation rate (SFR) and SFR surface density(SigmaSFR), as well as the stellar mass and specific star formation rate(sSFR). The Fe II and Mg II equivalent widths (EWs) increase with both SFR andSigmaSFR at $\gtrsim 3\sigma$ significance, while the composite spectra showlarger Fe II EWs and outflow velocities in galaxies with higher SFR, SigmaSFR,and sSFR. Absorption line profiles of the composite spectra further indicatethat the differences between subsamples are driven by outflows rather than theISM. While these results are consistent with those of previous studies, the useof H$\alpha$ images makes them the most direct test of the relationship betweenstar formation and outflows at $z>1$ to date. Future facilities such as theJames Webb Space Telescope and the upcoming Extremely Large Telescopes willextend these direct, H$\alpha$-based studies to lower masses and star formationrates, probing galactic feedback across orders of magnitude in galaxyproperties and augmenting the correlations we find here.

Connecting Galactic Outflows and Star Formation: Inferences from H-alpha Maps and Absorption Line Spectroscopy at 1 < z < 1.5