The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. I. Highly Ionized Gas
The Astrophysical JournalWe present JWST/MIRI spectra from the Medium-Resolution Spectrometer of I Zw 18, a nearby dwarf galaxy with a metallicity of ∼3% solar. Its proximity enables a detailed study of highly ionized gas that can be interpreted in the context of newly ...
L. K. Hunt +21 more
doaj +1 more source
The extended structure of the dwarf irregular galaxy Sagittarius [PDF]
, 2014 We present a detailed study of the stellar and HI structure of the dwarf irregular galaxy Sagittarius. We use new deep and wide field photometry to trace the surface brightness profile of the galaxy out to ~5.0' (corresponding to ~1600 pc) and down to ...
Battaglia, G. +8 more
core +3 more sources
The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. II. Warm Molecular Hydrogen and Warm Dust
The Astrophysical JournalWe present JWST/MIRI spectra from the Medium-resolution Spectrometer of I Zw 18, a nearby dwarf galaxy with a metallicity of ∼3% Solar. Here, we investigate warm molecular hydrogen, H _2 , observed in spectra extracted in ∼120 pc apertures centered on ...
L. K. Hunt +18 more
doaj +1 more source
The extended structure of the dwarf irregular galaxies Sextans A and Sextans B. Signatures of tidal distortion in the outskirts of the Local Group [PDF]
, 2014 We present a detailed study of the stellar and HI structure of the dwarf irregular galaxies SextansA and SextansB, members of the NGC3109 association. We use newly obtained deep (r~26.5) and wide field g,r photometry to extend the Surface Brightness (SB)
Beccari, G. +9 more
core +4 more sources
The Astrophysical JournalMeasuring the relation between star formation and galactic winds is observationally difficult. In this work we make an indirect measurement of the mass-loading factor (the ratio between the mass outflow rate and star formation rate) in low-mass galaxies ...
Erin Kado-Fong +9 more
doaj +1 more source
Spectral Energy Distributions for 258 Local Volume Galaxies
The Astronomical Journal, 2023 We present model spectral energy distribution (SED) fits to ultraviolet/optical/infrared observations for the 258 nearby galaxies in the Local Volume Legacy survey, a sample dominated by lower-luminosity dwarf irregular systems.
Daniel A. Dale +5 more
doaj +1 more source
The central region of the Fornax cluster -- I. A catalog and photometric properties of galaxies in selected CCD fields [PDF]
, 1998 We present a photometric catalog (based on V and I photometry) of galaxies in the central regions of the Fornax galaxy cluster. Our 11 CCD fields cover 0.17 degrees in total.
Hilker, M. +4 more
core +3 more sources
The Local Group dwarf irregular galaxy IC 1613 [PDF]
Astronomy and Astrophysics Supplement Series, 1999 Page 22, Sect. 3.1, you should read Table 1 instead of Table ?? Page 25, Sect. 3.3, you should read Table 3 instead of Table ?? Page 29, Sect. 5.1, you should read Table 3 instead of Table ??
L. Georgiev +5 more
openaire +1 more source
Searches for Extremely Metal-poor Galaxies Using Arecibo Legacy Fast ALFA–Selected Dwarf Galaxies
The Astrophysical Journal, 2023 We present a study of nearby dwarf galaxies selected from the Arecibo Legacy Fast ALFA (ALFALFA) blind H i survey. A primary goal of the project was to utilize a nonstandard selection method with the hope of detecting previously unrecognized extremely ...
John H. Miller Jr. +4 more
doaj +1 more source
Star-Forming Regions in Dwarf Galaxies of the Local Volume [PDF]
, 2013 We present the H-alpha flux measurements for 44 nearby dwarf galaxies, derived from the observations at the 6-m BTA telescope. H-alpha fluxes were used to determine the rate of integral star formation of galaxies, SFR. For the observed galaxies the value
Kaisin, S. S., Karachentsev, I. D
core +1 more source