Abstract
The location of H II regions, which indicates the locus of present star formation in galaxies, is analysed for a large collection of 110 irregular galaxies (Irr) imaged in Hα and nearby continuum. The analysis is primarily by visual inspection, although a two-dimensional quantitative measure is also employed. The two different analyses yield essentially identical results. H II regions appear preferentially at the edges of the light distribution, predominantly on one side of the galaxy, contrary to what is expected from stochastic self-propagating star formation scenarios. This peculiar distribution of star-forming regions cannot be explained by a scenario of star formation triggered by an interaction with extragalactic gas, or by a strong one-armed spiral pattern.
| Original language | English |
|---|---|
| Pages (from-to) | 1091-1097 |
| Number of pages | 7 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 300 |
| Issue number | 4 |
| DOIs | |
| State | Published - 11 Nov 1998 |
Keywords
- Galaxies: irregular
- Galaxies: stellar content
- H II regions
- Stars: formation
Fingerprint
Dive into the research topics of 'Morphology of star formation regions in irregular galaxies'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver