Star Formation Properties of a Large Sample of Irregular Galaxies

@article{Hunter2004StarFP,
  title={Star Formation Properties of a Large Sample of Irregular Galaxies},
  author={Deidre A. Hunter and Bruce G. Elmegreen},
  journal={The Astronomical Journal},
  year={2004},
  volume={128},
  pages={2170 - 2205}
}
We present the results of Hα imaging of a large sample of irregular galaxies. Our sample includes 94 galaxies with morphological classifications of Im, 26 blue compact dwarfs (BCDs), and 20 Sm systems. The sample spans a large range in galactic parameters, including integrated absolute magnitude (MV of -9 to -19), average surface brightness (20–27 mag arcsec-2), current star formation activity (0–1.3 M⊙ yr-1 kpc-2), and relative gas content (0.02–5 M⊙/LB). The Hα images were used to measure the… 

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References

SHOWING 1-10 OF 160 REFERENCES

The Evolutionary Status of Isolated Dwarf Irregular Galaxies. II. Star Formation Histories and Gas Depletion

The results of UBV and Hα imaging of a large sample of isolated dwarf irregular galaxies are interpreted in the context of composite stellar population models. The observed optical colors are best

The Rate of star formation in normal disk galaxies

Photometry of the integrated H..cap alpha.. emission in a large sample of field spiral and irregular galaxies has been used to obtain quantitative estimates of the total star formation rate (SFR) in

Star formation properties of UCM galaxies

We present new near-infrared J and K imaging data for 67 galaxies from the Universidad Complutense de Madrid survey used to determine the SFR density of the local universe by Gallego et al. (1995).

Stellar populations in local star-forming galaxies – II. Recent star formation properties and stellar masses

We present the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey galaxies. Applying the techniques described in the first paper of this series, we

Star formation properties of Universidad Complutense de Madrid survey galaxies

We present new near-infrared J and K imaging data for 67 galaxies from the Universidad Complutense de Madrid (UCM) survey used in the determination of the SFR density of the local Universe by Gallego

The Stellar Population and Star Clusters in the Unusual Local Group Galaxy IC 10

We present an analysis of Hubble Space Telescope U, V, I, and Hα images of the peculiar Local Group irregular galaxy IC 10. The images are used to determine the nature of the stellar products in a

The Hα Galaxy Survey ⋆ I. The galaxy sample, Hα narrow-band observations and star formation parameters for 334 galaxies

We discuss the selection and observations of a large sample of nearby galaxies, which we are using to quantify the star formation activity in the local Universe. The sample consists of 334 galaxies

Star Formation Rates of Local Blue Compact Dwarf Galaxies. I. 1.4 GHz and 60 Micron Luminosities

We determine and examine the star formation rates of 50 well-known, local blue compact dwarf (BCD) galaxies based on their 1.4 GHz and 60 μm luminosities. We find that in cases for which both radio

The Star Formation History of NGC 6822

Images of five fields in the Local Group dwarf irregular galaxy NGC 6822 obtained with the Hubble Space Telescope in the F555W and F814W filters are presented. Three of the fields lie mostly within

Gas-rich Dwarf Galaxies from the Second Palomar Sky Survey. II. Optical Properties

We describe the optical properties of a sample of 101 gas-rich field dwarf galaxies found on Second Palomar Sky Survey plates, most newly discovered as part of a survey to investigate the clustering
...