Assigned ID: 121 ----- Attempting Submission 1 (Wed Feb 22 22:34:47 GMT 2012) ----- HST Phase I Proposal 121 (gdsgrsim.apt) successfully submitted. ----- Attempting Submission 2 (Wed Feb 22 22:35:20 GMT 2012) ----- HST Phase I Proposal 121 (trump3dhstAR_big.pdf.apt) successfully submitted. ----- Attempting Submission 3 (Fri Feb 24 10:34:39 GMT 2012) ----- HST Phase I Proposal 121 (trump3dhstAR.apt) successfully submitted. ----- Attempting Submission 4 (Fri Feb 24 20:26:07 GMT 2012) ----- HST Phase I Proposal 121 (trump3dhstAR.apt) successfully submitted. ----- Attempting Submission 5 (Sat Feb 25 00:55:25 GMT 2012) ----- HST Phase I Proposal 121 (trump3dhstAR.apt) successfully submitted. ----- Attempting Submission 6 (Sat Feb 25 00:58:06 GMT 2012) ----- HST Phase I Proposal 121 (trump3dhstAR.apt) successfully submitted. ----- Attempting Submission 7 (Sat Feb 25 01:01:24 GMT 2012) ----- ----- Attempting Submission 8 (Tue Feb 28 12:29:38 GMT 2012) ----- This archival grism proposal achieves a 100-fold gain in high-quality (5+sigma) information for discovering which properties of adolescent (0.7<z<2.4) galaxies of typical mass and SFR are linked to AGN activity. We propose to analyze 147 WFC3 G141 and 111 ACS 800L pointings of 2-orbit grism data in the CANDELS fields, for a sample of ~3000 galaxies reaching SFR~5 Msun/yr and stellar masses of log(M*/Msun)~9 at z~1.5. We will leverage spatially-resolved line ratios to uniquely distinguish a nuclear AGN from extended low-metallicity or shocked gas. Compared to our 30-galaxy published sample that hints at AGNs in low-mass z~2 galaxies (Trump et al. 2011), this ~3000 galaxy sample enables a 100-fold gain in divisions by galaxy morphology, SFR, and stellar mass to discover which galaxy properties correlate most with rapid SMBH growth. We will stack the deep (0.8-4 Ms) Chandra data available in these fields as an independent check of the grism AGN/SF diagnostics. The unique ancillary data in these fields also include ACS+WFC3 imaging for morphologies, deep multiwavelength data for well-sampled SEDs and stellar masses, and previous optical (and future near-IR) spectroscopy to supplement the G141 coverage. Based on discussions with the GOODS-N and 3D-HST teams, our proposed AGN science does not overlap with their proposed or funded science goals. As a value-added product for the community we will release, via the public Rainbow-CANDELS database server, an atlas of spatial maps of emission lines and line ratios (and associated errors) for the entire sample of 3000 galaxies. AGN/QUASARS 0 Medium false 0.0 0.0 false false false false SUPPORTED J2000 J2000 WFC3/IR Spectroscopic No No G141