Published June 15, 1981
| Version v1
Journal article
Extragalactic H II regions in the UV: Implications for primeval galaxies
Creators
- 1. and W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California
- 2. Institute of Astronomy, Cambridge, England
Description
Three extragalactic regions of rapid star formation with redshifts great enough to separate the Lyα region from geocoronal Lyα have been observed with the IUE satellite. Only the low metal abundance object had detectable Lyα emission with Lyα/Hβapprox.6; the other two have Lyα/Hβ<0.6 (2sigma). In the normal metallicity objects, there is some evidence for Lyα extinction in addition to that computed from the Balmer decrement. Lyα is therefore expected to be weak or absent in collapsed primeval galaxies because of their predicted moderate to high metallicity
Additional details
Publishing Information
- Journal Title
- Astrophys. J., Lett. Ed.
- Journal Volume
- 246
- Journal Issue
- 3
- Series
- Astrophys. J., Lett. Ed.
- Journal Page Range
- L109-L113
- ISSN
- 0571-7248
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 13646364
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CHEMICAL COMPOSITION; COSMIC DUST; GALACTIC EVOLUTION; H2 REGIONS; LYMAN LINES; RED SHIFT; STAR ACCRETION; ULTRAVIOLET SPECTRA
- Descriptors DEC
- COSMIC RADIO SOURCES; DUSTS; SPECTRA; STAR EVOLUTION