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We explore the possible dependencies of galaxy metal abundance andstar-formation rate (SFR) on local environment, focusing on the volume of spacein and around the Bootes Void. Our sample of star-forming galaxies comes fromthe second catalog of the H-alpha-selected KPNO International SpectroscopicSurvey (KISS) which overlaps the void. This sample represents a statisticallycomplete, line-flux-limited ensemble of 820 star-forming galaxies, all of whichpossess metallicity and SFR estimates. We carry out two distinct analyses ofthe KISS galaxies: one which probes the properties of the entire sample as afunction of local density, and a second which details the properties of 33 KISSstar-forming galaxies located within the Bootes Void. In both cases we find noevidence that either the metallicity of the KISS galaxies or their SFRs dependon the environments within which the galaxies are located. Our global analysisdoes show weak trends for decreasing stellar mass, decreasing metallicity, anddecreasing SFRs with decreasing local densities. However, we argue that themetallicity and SFR trends are artifacts of the stellar mass - local densitytrend. In particular, the change in metallicity with density is precisely whatone would predict from the mass-metallicity relation given the observed drop instellar mass with decreasing metallicity. Likewise, the SFR trend with densitydisappears when one instead considers the mass-normalized specific SFR. TheKISS galaxies dwelling in the Bootes Void are found to have nearly identicalmetallicity and SFR properties to a matched comparison sample, despite the factthat the former are located in density environments that are, on average, morethan 16 times lower.

Metal Abundances and Star-Formation Rates of Emission-Line Galaxies in and around the Bootes Void