Kewley, Lisa; Yuan, TianTian; Nanayakkara, Themiya; Kacprzak, Glenn; Tran, Kim-Vy; Glazebrook, Karl; Spitler, Lee R.; Cowley, Michael; Dopita, Michael; Straatman, Caroline; Labbe, Ivo; Tomczak, Adam
We investigate the ISM properties of 13 star-forming galaxies within the z~ 2 COSMOS cluster. We show that the cluster members have [N ii]/Halpha and [O iii]/Hbeta emission-line ratios similar to z~ 2 field galaxies, yet systematically different emission-line ratios (by ~0.17 dex) from the majority of local star-forming galaxies. We find no statistically significant difference in the [N ii]/Halpha and [O iii]/Hbeta line ratios or ISM pressures among the z~ 2 cluster galaxies and field galaxies...[Show more]
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