Results 11 to 20 of about 176,382 (265)
A STAR FORMATION LAW FOR DWARF IRREGULAR GALAXIES [PDF]
The Astrophysical Journal, 2015 The radial profiles of gas, stars, and far ultraviolet radiation in 20 dwarf Irregular galaxies are converted to stability parameters and scale heights for a test of the importance of two-dimensional (2D) instabilities in promoting star formation. A detailed model of this instability involving gaseous and stellar fluids with self-consistent thicknesses
Bruce G. Elmegreen, Deidre A. Hunter
semanticscholar +6 more sources
Searching for TeV Dark Matter in Irregular Dwarf Galaxies with HAWC Observatory [PDF]
The Astrophysical Journal, 2023 We present the results of dark matter (DM) searches in a sample of 31 dwarf irregular (dIrr) galaxies within the field of view of the HAWC Observatory.
R. Alfaro +72 more
doaj +2 more sources
The Interstellar Medium in Dwarf Irregular Galaxies [PDF]
Annual Review of Astronomy and AstrophysicsDwarf irregular (dIrr) galaxies are among the most common type of galaxy in the Universe. They typically have gas-rich, low-surface-brightness, metal-poor, and relatively thick disks. Here, we summarize the current state of our knowledge of the interstellar medium (ISM), including atomic, molecular, and ionized gas, along with their dust properties and
Hunter, Deidre A. +2 more
openaire +5 more sources
THE OUTER DISKS OF DWARF IRREGULAR GALAXIES [PDF]
The Astronomical Journal, 2011 AJ, in ...
Deidre A. Hunter +14 more
openaire +6 more sources
The Sagittarius dwarf irregular galaxy: Metallicity and stellar populations [PDF]
Astronomy & Astrophysics, 2002 10 pages, 7 figures, accepted A& ...
Y. Momany +3 more
openalex +5 more sources
The chemical case for no winds in dwarf irregular galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 12 pages, 8 figures.
Angeles I. Díaz +3 more
openaire +5 more sources
The Outer Edges of Dwarf Irregular Galaxies: Stars and Gas [PDF]
Publications of the Astronomical Society of the Pacific, 2002 We have in recent years come to view dwarf galaxy evolution in the broader context of the cosmic evolution of large-scale structure. Dwarf galaxies, as the putative building blocks of hierarchical galaxy formation, and also as the most numerous galaxies in the Universe, play a central role in cosmic evolution.
D. A. Hunter, Paul W. Hodge, M. S. Oey
arxiv +5 more sources
Star clusters in the dwarf irregular galaxy Leo A [PDF]
Astronomy & Astrophysics, 2019 Context. Leo A is an isolated gas-rich dwarf irregular galaxy of low stellar mass and metallicity residing at the outskirts of the Local Group. Ages of the stellar populations in Leo A range from ∼10 Myr to ∼10 Gyr. So far, only one star cluster has been discovered in this galaxy. Aims.
R. Stonkutė +4 more
openalex +5 more sources
The Nature of Turbulence in the LITTLE THINGS Dwarf Irregular Galaxies [PDF]
The Astronomical Journal, 2017 Abstract We present probability density functions and higher order (skewness and kurtosis) analyses of the galaxy-wide and spatially resolved distributions of H i column density in the LITTLE THINGS sample of dwarf irregular galaxies. This analysis follows that of Burkhart et al. for the Small Magellanic Cloud (SMC).
Erin Maier +8 more
openaire +5 more sources
Deep Near-Infrared Surface Photometry and Properties of Local Volume Dwarf Irregular Galaxies [PDF]
, 2014 We present deep H-band surface photometry and analysis of 40 Local Volume galaxies, a sample primarily composed of dwarf irregulars in the Cen A group, obtained using the IRIS2 detector at the 3.9m Anglo-Australian Telescope. We probe to a surface brightness of ~25 mag arcsec$^{-2}$, reaching a 40 times lower stellar density than the Two Micron All Sky
Tye Young +6 more
arxiv +3 more sources