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astro-ph.GA2026
Ultra-deep imaging of nearby dwarf irregular galaxies: stellar haloes and disk structure
Deidre A. Hunter, Bruce G. Elmegreen
We have examined the stellar structure of 10 nearby, low stellar mass (10^6 to 6 x 10^7 Msolar) dwarf irregular galaxies by fitting ellipses as a function of surface brightness on…
astro-ph.GA2026
Pervasive Cavity-Ring Structure for Star Formation in Dwarf Irregular Galaxies
Bruce G. Elmegreen, Deidre A. Hunter
Unsharp-mask images of HI emission from 36 dwarf irregular (dIrr) galaxies illustrate star formation in dispersed clouds and on the rims of large cavities. The cavities can extend…