0 Assigned ID: 246 ----- Attempting Submission 1 (Thu Apr 07 17:26:10 GMT 2016) ----- HST Phase I Proposal 246 (clumpy.apt) successfully submitted. Receipt: # 246-1 ----- Attempting Submission 2 (Fri Apr 08 19:23:49 GMT 2016) ----- HST Phase I Proposal 246 (clumpy.apt) successfully submitted. Receipt: # 246-2 ----- Attempting Submission 3 (Fri Apr 08 20:35:00 GMT 2016) ----- HST Phase I Proposal 246 (clumpy.apt) successfully submitted. Receipt: # 246-3 ----- Attempting Submission 4 (Fri Apr 08 20:36:41 GMT 2016) ----- HST Phase I Proposal 246 (clumpy.apt) successfully submitted. Receipt: # 246-4 ----- Attempting Submission 5 (Fri Apr 08 22:00:16 GMT 2016) ----- The mass-metallicity-SFR (M-Z-SFR) relation for galaxies gives insight into the accretion and outflow of gas. Heightened accretion should increase disk turbulence and the corresponding Jeans mass for gravitational instabilities, making star-formation clumpy, and it should also trigger star formation directly in large clumps where infalling clouds impact the disk. It follows that if the most irregular and clumpy galaxies are the most actively accreting, then they should be low-Z outliers in the M-Z-SFR relation. We propose to investigate for the first time whether any relationship exists between position on the M-Z-SFR relation and clumpy morphology. We will use WFC3/IR grism observations from several large surveys in the CANDELS fields to measure metallicities of intermediate redshift (1.3<z<2.3) galaxies. Of the ~1000 emission line galaxies sampled, we expect 30% to have a clumpy structure, determined from rest-frame optical imaging. We will measure SFRs from the emission lines, and combine them with SED based masses to compare clumpy galaxies with other disk galaxies of the same mass and redshift. We will investigate the existence and possible evolution of the M-Z-SFR relation at z~1.5 to z~2. We will also split the sample into bins of mass, morphology, and SFR using stacked spectra. The sample is large enough to get a statistically significant result. This proposed investigation would address the role that the structure of galaxies play in the M-Z-SFR relation, and investigate the redshift evolution of the relation and its possible dependence on galaxy morphology. Galaxies 0 Regular false false false SUPPORTED