Published December 1988
| Version v1
Journal article
Physical conditions in H II galaxies
Description
The temperature of the ionizing radiation T(ion) and the mean nebular ionization parameters U-bar were measured for a sample of 45 H II galaxies with estimated oxygen abundances in the range log O/H = -4.9 to -3.6. A simple, Stromgren sphere model is shown to fit very well all but three of the objects. The sensitivity of emission-line strength to T(ion) and U-bar is illustrated for several familiar forbidden-line ratios. 38 references
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 335
- Series
- Astrophys. J.
- Journal Page Range
- 644-657
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20031662
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CHEMICAL COMPOSITION; EMISSION SPECTRA; GALAXIES; H2 REGIONS; IONIZATION; IONIZING RADIATIONS; MATHEMATICAL MODELS; MORPHOLOGICAL CHANGES; OXYGEN; TEMPERATURE MEASUREMENT
- Descriptors DEC
- COSMIC RADIO SOURCES; ELEMENTS; NONMETALS; RADIATIONS; SPECTRA