WFPC2 Imaging of the Protogalaxy Candidate b2 0902+34 - Observations

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Hst Proposal Id #5758 Galaxies &Amp, Clusters Distant Galaxies

Scientific paper

We propose to obtain high spatial resolution imaging with WFPC2 of the continuum and Ly-alpha line emission from the distant radio galaxy B2 0902+34. This object appears to have the largest UV to optical (rest frame) flux ratio measured for a radio galaxy, and at z=3.395 is also among the most distant galaxies known. It is therefore an excellent candidate for a protogalaxy. Our objective is to obtain a clearer picture of the formation process in this galaxy. The proposed observations will reveal the distribution of star-forming regions and emission line gas, and the relationship between them, on a 1 kpc scale, as well as their relationship to the radio source structure.

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