Journal article
EXPLORING THE INTERSTELLAR MEDIA OF OPTICALLY COMPACT DWARF GALAXIES
The Astronomical journal, Vol.145(6), pp.1-23
06/01/2013
DOI: 10.1088/0004-6256/145/6/150
Abstract
We present new Very Large Array Hi spectral line, archival Sloan Digital Sky Survey, and archival Spitzer Space Telescope imaging of eight star-forming blue compact dwarf galaxies that were selected to be optically compact (optical radii < 1 kpc). These systems have faint blue absolute magnitudes (M-B greater than or similar to -17), ongoing star formation (based on emission-line selection by the H alpha or [O III] lines), and are nearby (mean velocity = 3315 km s(-1) similar or equal to 45 Mpc). One galaxy in the sample, ADBS 113845+2008, is found to have an H I halo that extends 58 r-band scale lengths from its stellar body. In contrast, the rest of the sample galaxies have H I radii to optical-scale-length ratios ranging from 9.3 to 26. The size of the H I disk in the "giant disk" dwarf galaxy ADBS 113845+2008 appears to be unusual as compared with similarly compact stellar populations.
Details
- Title: Subtitle
- EXPLORING THE INTERSTELLAR MEDIA OF OPTICALLY COMPACT DWARF GALAXIES
- Creators
- Hans P. Most - Macalester CollegeJohn M. Cannon - Macalester CollegeJohn J. Salzer - Indiana University BloomingtonJessica L. Rosenberg - George Mason UniversityEric Engstrom - Macalester CollegePalmer Fliss - Macalester College
- Resource Type
- Journal article
- Publication Details
- The Astronomical journal, Vol.145(6), pp.1-23
- Publisher
- Iop Publishing Ltd
- DOI
- 10.1088/0004-6256/145/6/150
- ISSN
- 0004-6256
- eISSN
- 1538-3881
- Number of pages
- 23
- Grant note
- Max Planck Society National Radio Astronomy Observatory and Macalester College U.S. Department of Energy; United States Department of Energy (DOE) National Aeronautics and Space Administration; National Aeronautics & Space Administration (NASA) Higher Education Funding Council for England; UK Research & Innovation (UKRI); Higher Education Funding Council for England (HEFCE) Japanese Monbukagakusho; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) 0847409 / Direct For Mathematical & Physical Scien; Division Of Astronomical Sciences; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) Participating Institutions National Science Foundation; National Science Foundation (NSF) AST-000167932 / NSF; National Science Foundation (NSF) Cottrell College Science Award from Research Corporation; Research Corporation for Science Advancement Alfred P. Sloan Foundation SDSS and SDSS-II NASA; National Aeronautics & Space Administration (NASA)
- Language
- English
- Date published
- 06/01/2013
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627299002771
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