A Spitzer Study of Asymptotic Giant Branch Stars . Iii . Dust Production and Gas Return in Local Group Dwarf Irregular Galaxies

Abstract

We present the third and final part of a census of Asymptotic Giant Branch (AGB) stars in Local Group dwarf irregular galaxies. Papers I and II presented the results for WLM and IC 1613. Included here are Phoenix, LGS 3, DDO 210, Leo A, Pegasus dIrr, and Sextans A. Spitzer photometry at 3.6, 4.5, 5.8, and 8 μm are presented, along with a more thorough… (More)

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