7 papers · 1 filter
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…
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…
Pressure and Star Formation in LITTLE THINGS Dwarf Irregular Galaxies
Bruce G. Elmegreen, Deidre A. Hunter, Edvige Corbelli
The surface densities of star formation, Sigma_SFR, in 24 dwarf irregular (dIrr) galaxies from the LITTLE THINGS survey are combined with gas surface densities and midplane pressur…
The Karl G. Jansky Very Large Array Local Group L-band Survey (LGLBS)
Eric W. Koch, Adam K. Leroy, Erik W. Rosolowsky +45
We present the Local Group L-Band Survey (LGLBS), a Karl G. Jansky Very Large Array (VLA) survey producing the highest quality 21-cm and 1-2 GHz radio continuum images to date for…
Stellar Populations and Molecular Gas Composition in the Low-Metallicity Environment of WLM
Haylee N. Archer, Deidre A. Hunter, Bruce G. Elmegreen +8
We investigate the stellar populations and molecular gas properties of a star-forming region within the dwarf irregular (dIrr) galaxy WLM. Low-metallicity dIrrs like WLM offer a va…
The Local Group L-Band Survey: The First Measurements of Localized Cold Neutral Medium Properties in the Low-Metallicity Dwarf Galaxy NGC 6822
Nickolas M. Pingel, Hongxing Chen, Snežana StanimiroviÄ +15
Measuring the properties of the cold neutral medium (CNM) in low-metallicity galaxies provides insight into heating and cooling mechanisms in early Universe-like environments. We r…