Results 1 to 10 of about 1,381 (128)

On the oxygen abundance deficiency in irregular galaxies [PDF]

open access: yesNew Astronomy Reviews, 2000
8 pages, 7 figures, accepted for publication in Astronomy and ...
Pilyugin, L. S., Ferrini, F.
openaire   +4 more sources

FIGGS Faint Irregular Galaxies GMRT Survey [PDF]

open access: green, 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   +4 more sources

THE OUTER DISKS OF DWARF IRREGULAR GALAXIES [PDF]

open access: yesThe Astronomical Journal, 2011
AJ, in ...
Hunter, Deidre A.   +7 more
openaire   +2 more sources

Magnetic Fields in Irregular Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
Magnetic fields are an important component of the interstellar medium, especially in low-mass galaxies like irregulars where the magnetic pressure may be significant. However, few irregular galaxies have observed magnetic field structures. Using the VLA, the GBT, and the ATCA, we have observed several irregular galaxies in the radio continuum to ...
Kepley, Amanda A.   +6 more
openaire   +4 more sources

Supernova Remnants in the Irregular Galaxy NGC 4449

open access: yesThe Astrophysical Journal, 2023
Abstract The nearby irregular galaxy NGC 4449 has a star formation rate of ∼0.4M ☉ yr−1 and should host of order 70 supernova remnants (SNRs) younger than 20,000 yr, a typical age for SNRs expanding into an interstellar medium (ISM) with a density of 1 cm−3 to reach the radiative phase.
P. Frank Winkler   +2 more
openaire   +3 more sources

GALACTIC WINDS IN IRREGULAR STARBURST GALAXIES [PDF]

open access: yes, 2001
In this paper we present some results concerning the study of the development of galactic winds in blue compact galaxies. In particular, we model a situation very similar to that of the galaxy IZw18, the most metal poor and unevolved galaxy known locally.
Matteucci, F., Recchi, S.
openaire   +2 more sources

Lopsidedness in dwarf irregular galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2000
We quantify the amplitude of the lopsidedness, the azimuthal angular asymmetry index, and the concentration of star forming regions, as represented by the distribution of the H$α$ emission, in a sample of 78 late-type irregular galaxies. We bin the observed galaxies in two groups representing blue compact galaxies (BCDs) and low surface brightness ...
Heller, Ana B.   +4 more
openaire   +2 more sources

The CO contents of dwarf irregular galaxies

open access: yesThe Astrophysical Journal, 1987
A search has been conducted for CO in 16 dwarf irregular galaxies selected to span a wide range of infrared luminosity and color. CO was detected in six dwarf galaxies spanning the entire range in optical color and IR luminosity. The dwarf galaxies extend by three orders of magnitude in luminosity the correlation between IR and CO luminosities found ...
TACCONI, LJ, Young, JS
openaire   +2 more sources

Global properties of irregular galaxies

open access: yesThe Astrophysical Journal Supplement Series, 1982
We present optical and radio observations of global properties for a sample of noninteracting irregular galaxies and a few comparison objects. Program galaxies were chosen primarily on the basis of their blue colors and thus may be expected to represent systems with high rates of star formation.
D. A. Hunter   +2 more
openaire   +1 more source

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