Poster abstract details

Further Exploration of Galactic Disk Abundance Gradients
J. B. Milingo, R. B. C. Henry, K. B. Kwitter, & B. Balick

Abstract

With a compiled set of homogeneously determined abundances for 124 Galactic planetary nebulae (PNe), we examine the abundance gradient in the Milky Way disk. We present recent results from a detailed regression analysis of the oxygen gradient. With O, Ne, S, Cl, and Ar available for both Peimbert Types I and II PNe, and a range of galactocentric distance from 0.9 to 21 kpc, we present additional exploration of the disk abundance gradient by statistically analyzing a series of short segments of increasing average galactocentric distance. Finally, we further analyze the scatter observed in PNe abundances within these segments.