Results 51 to 60 of about 89 (85)

FIGGS Faint Irregular Galaxies GMRT Survey [PDF]

open access: yes, 2008
The Faint Irregular Galaxies GMRT Survey (FIGGS) is a large program aimed at providing a comprehensive and statistically robust characterisation of the neutral ISM properties of faint (M_B > -14.5), nearby, gas rich, dwarf irregular galaxies using the Giant Metrewave Radio Telescope (GMRT). Here we briefly describe the survey and discuss some of the
Begum, Ayesha   +4 more
openaire   +2 more sources

Fragmentation of Expanding Shells in Spiral and Irregular Galaxies

open access: yesAstronomy & Astrophysics, 1997
Conditions for the fragmentation of expanding shells due to gravitational instability are discussed. The self-similar analytical solution is compared with the results of 3-dimensional computer simulations for the expansion into homogeneous media. For realistic galactic disks we show that the formation of fragments is influenced by the amount of energy ...
Ehlerova, Sona   +3 more
openaire   +3 more sources

Genuine Irregular Galaxies as a Relic of Building Blocks of Galaxies

open access: yes, 2013
In order to understand nature of building blocks of galaxies in the early universe, we investigate "genuine irregular galaxies (GIGs)" in the nearby universe. Here, GIGs are defined as isolated galaxies without regular structures (spheroid, bulge, disk, bar, spiral arm, and nucleus). Using the results of two excellent studies on galaxy morphology based
Terao, K.   +11 more
openaire   +2 more sources

Chemical evolution of irregular galaxies

open access: yes, 1998
10 pages, 3 figs, uses moriond.sty. Review presented at XVIIIth Rencontre de Moriond `Dwarf Galaxies and Cosmology', eds.
openaire   +2 more sources

Empirical Dependencies for Irregular and Elliptical Dwarf Galaxies

open access: yesMoscow University Physics Bulletin
This study examines the physical properties and correlations for dwarf galaxies, including irregular (dIrr) and elliptical (dE) types. Data from the NASA/IPAC and HyperLEDA databases were used to analyze relationships among parameters such as distance to galaxy, absolute magnitude of galaxy, mass of galaxy, and surface brightness of galaxy using ...
K.T. Tillaboev, I.U. Tadjibaev
openaire   +1 more source

Discussion on Irregular Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1978
openaire   +1 more source

The inclination of the dwarf irregular galaxy Holmberg II

open access: yes, 2014
We provide constraints on the inclination angle of the H\,{\sc i} disk of the dwarf irregular galaxy Holmberg II (Ho II) from stability analysis of the outer gaseous disk. We point out that a mean inclination angle of 27 degrees and thus a flat circular velocity of ~60 km/s, is required to have a level of gravitational stability similar to that found ...
F. J. Sánchez-Salcedo   +2 more
openaire   +3 more sources

The nature of irregular II galaxies

open access: yesThe Astronomical Journal, 1974
O. K., Jr. Krienke, P. W. Hodge
openaire   +1 more source

On the origin of Irregular II galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1978
openaire   +1 more source

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