Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.8305b&link_type=abstract
American Astronomical Society, 188th AAS Meeting, #83.05; Bulletin of the American Astronomical Society, Vol. 28, p.960
Astronomy and Astrophysics
Astronomy
Scientific paper
We present follow-up observations of the proto-galaxy candidate MS1512-cB58 at z=2.72 discovered by Yee et al. (1996). cB58 is an extremely luminous, well-resolved disk-like galaxy, with a rest UV spectrum containing strong P-Cygni lines indicative of the presence of massive O and B stars. The spectral energy distribution from rest frame 1300-6000 Angstroms is fit by population synthesis models from Bruzual and Charlot (1993) which confirm a very young age for this galaxy. While a substantial older population cannot be completely ruled out with the present data, the simplest interpretation is that this is a galaxy within about 100 million years of the initial burst of star-formation which created most of its stellar mass, and that it will likely evolve into a bright galaxy of several L* by today. Observations to further constrain the star formation rate, dust mass, molecular mass, and limit the extent to which it is gravitationally lensed by foreground objects will be discussed.
Bechtold Jill
Ellingson Erica E.
Elston Richard
Yee Howard K. C.
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