Formation of Young Galaxies in the Vicinities of the Most Distant Radio Galaxy and Radio-Loud Quasar

Details Formation of Young Galaxies in the Vicinities of the Most Distant Radio Galaxy and Radio-Loud Quasar Formation of Young Galaxies in the Vicinities of the Most Distant Radio Galaxy and Radio-Loud Quasar

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sptz.prop20749z&link_type=abstract

Spitzer Proposal ID #20749

Physics

Scientific paper

Our deep HST images have revealed a significant excess of associated galaxies in the fields of the most distant radio-loud objects known: a radio galaxy at z=5.2 and a radio-loud quasar at z=5.8. These objects are among the most distant protogalaxies known to date, and may be evidence for massive structures forming at very early times. We propose deep imaging with IRAC at 3.6 microns to probe their properties at restframe R-band. The Spitzer data will provide critical information on the spectral shape between (restframe) Ly-alpha and H-alpha. Due to the extreme richness of the two fields we expect to shed new light on the star-formation and assembly of mass in the very early univese, and its relation to the emergence of large-scale structure.

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