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The Brightest of Reionizing Galaxies HST/WFC3 survey


The Brightest of Reionizing Galaxies Survey is a large Hubble Space Telescope Program focused on finding rare and bright galaxy candidates at redshift z~8 that is when the Universe was about 650 million years old. We use the new Hubble's Wide Field Camera 3, which is highly efficient in the near-infrared bands (Y, J, H) that are needed to identify these very distant galaxies. The near-infrared filters are complemented by deep optical imaging in the V band.

BoRG is a pure-parallel survey. This means that the data are acquired while Hubble is pointing for primary spectroscopic observations (typically distant QSOs).

BoRG was originally designed in Cycle 17 (GO/PAR 11700) and is continuing with observations in Cycle 19 (GO/PAR 12572).

  • Exciting follow-up campaign in 2013: four Keck nights and 12h at VLT
  • Last few (~10) Cycle 19 fields acquired in early 2013.
  • z~8 LF function from the BoRG team: the best determination yet from Hubble data!
  • BoRG discovered the farther proto-cluster of galaxies
  • BoRG is approved for Cycle 19 continuation: First new data arriving on October 27, 2011
  • What is BoRG?
  • BoRG status
  • Data products
  • The BoRG Team
  • BoRG's home