%0 Generic %1 Trenti2010 %A Trenti, M. %A Bradley, L. D. %A Stiavelli, M. %A Oesch, P. %A Treu, T. %A Bouwens, R. J. %A Shull, J. M. %A MacKenty, J. W. %A Carollo, C. M. %A Illingworth, G. D. %D 2010 %K arxiv reionizing %T The Brightest Of Reionizing Galaxies Survey: Design and Preliminary Results %U http://arxiv.org/abs/1011.4075 %X We present the first results on the search for very bright (M_AB~-21) z~8 galaxies from the Brightest of Reionizing Galaxies (BoRG) survey. BoRG is a Hubble Space Telescope Wide Field Camera 3 pure-parallel survey that is obtaining images on random lines of sight at high Galactic latitudes in four filters (F606W, F098M, F125W, F160W), with integration times optimized to identify galaxies at z>7.5 as F098M-dropouts. We discuss here results from a search area of ~130 arcmin^2 over 23 BoRG fields, complemented by 6 other pure-parallel WFC3 fields with similar filters. This new search area is >2X wider compared to previous WFC3 observations at z~8. We identify four F098M-dropout candidates with high statistical confidence (detected at >8 sigma in F125W). These sources are among the brightest candidates currently known at z~8 and ~10x brighter than the z=8.56 galaxy UDFy-38135539. They thus represent ideal targets for spectroscopic followup observations and could potentially lead to a redshift record as our color selection includes objects up to z~ 9. However, the expected contamination rate of our sample is ~30% higher than typical searches for dropout galaxies in legacy fields, such as the GOODS and HUDF, where more extended wavelength coverage is available both in the optical and in the infrared.

@misc{Trenti2010, abstract = { We present the first results on the search for very bright (M_AB~-21) z~8 galaxies from the Brightest of Reionizing Galaxies (BoRG) survey. BoRG is a Hubble Space Telescope Wide Field Camera 3 pure-parallel survey that is obtaining images on random lines of sight at high Galactic latitudes in four filters (F606W, F098M, F125W, F160W), with integration times optimized to identify galaxies at z>7.5 as F098M-dropouts. We discuss here results from a search area of ~130 arcmin^2 over 23 BoRG fields, complemented by 6 other pure-parallel WFC3 fields with similar filters. This new search area is >2X wider compared to previous WFC3 observations at z~8. We identify four F098M-dropout candidates with high statistical confidence (detected at >8 sigma in F125W). These sources are among the brightest candidates currently known at z~8 and ~10x brighter than the z=8.56 galaxy UDFy-38135539. They thus represent ideal targets for spectroscopic followup observations and could potentially lead to a redshift record as our color selection includes objects up to z~ 9. However, the expected contamination rate of our sample is ~30% higher than typical searches for dropout galaxies in legacy fields, such as the GOODS and HUDF, where more extended wavelength coverage is available both in the optical and in the infrared. }, added-at = {2010-11-19T02:55:23.000+0100}, author = {Trenti, M. and Bradley, L. D. and Stiavelli, M. and Oesch, P. and Treu, T. and Bouwens, R. J. and Shull, J. M. and MacKenty, J. W. and Carollo, C. M. and Illingworth, G. D.}, biburl = {https://www.bibsonomy.org/bibtex/2b8fc85572265a09f4e88256b56788401/jimmies}, description = {The Brightest Of Reionizing Galaxies Survey: Design and Preliminary Results}, interhash = {3802dff5bf765b90607bbe8d42e2e0b8}, intrahash = {b8fc85572265a09f4e88256b56788401}, keywords = {arxiv reionizing}, note = {cite arxiv:1011.4075 Comment: 6 pages, 3 figures, 2 tables, ApJL submitted}, timestamp = {2010-11-19T02:55:23.000+0100}, title = {The Brightest Of Reionizing Galaxies Survey: Design and Preliminary Results}, url = {http://arxiv.org/abs/1011.4075}, year = 2010 }