Abstract
MS1512-cB58 is an z = 2.73 galaxy whose apparent brightness is amplified by 30-50X due to gravitationally lensing. The restframe far-UV spectrum of cB58 that was obtained by Keck-I/LRIS is 'one of the best ultraviolet spectra of a starburst galaxy obtained at any redshift' (Pettini et al., 2000). We have analyzed and modeled the spectrum of this galaxy in order to learn the properties of high-redshift galaxies. We find that our model spectrum is a near match to the observed spectrum of cB58 if the galaxy has a SMC-like metallicity, and has a Salpeter IMF extending up to ∼ 100 M⊙. The spectrum of cB58 also shows many absorption lines formed in a giant, expanding gas shell surrounding the star-forming complex. We show preliminary findings of the properties of the giant HII region based on our CLOUDSPEC model.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 263-266 |
| Number of pages | 4 |
| Journal | Astrophysics and Space Science |
| Volume | 277 |
| DOIs | |
| State | Published - 2001 |
| Externally published | Yes |
Keywords
- Cosmology: observations
- Galaxies: evolution
- Galaxies: individual (MS1512-cB58)
- Ultraviolet
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
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