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Full-Text Articles in Physical Sciences and Mathematics
The Bright-End Galaxy Candidates At Z ∼ 9 From 79 Independent Hst Fields, T. Morishita, M. Trenti, M. Stiavelli, L. D. Bradley, D. Coe, P. A. Oesch, C. A. Mason, J. S. Bridge, Benne W. Holwerda, R. C. Livermore, B. Salmon, K. B. Schmidt, J. M. Shull, T. Treu
The Bright-End Galaxy Candidates At Z ∼ 9 From 79 Independent Hst Fields, T. Morishita, M. Trenti, M. Stiavelli, L. D. Bradley, D. Coe, P. A. Oesch, C. A. Mason, J. S. Bridge, Benne W. Holwerda, R. C. Livermore, B. Salmon, K. B. Schmidt, J. M. Shull, T. Treu
Faculty Scholarship
We present a full data analysis of the pure-parallel Hubble Space Telescope (HST) imaging observations in the Brightest of Reionizing Galaxies Survey (BoRG[z9]) in Cycle 22. The medium-deep exposures with five HST/WFC3IR+UVIS filter bands from 79 independent sightlines (∼370 arcmin2) provide the least biased determination of number density for z 9 bright galaxies against cosmic variance. After a strict two-step selection for candidate galaxies, including dropout color and photometric redshift analyses, and revision of previous BoRG candidates, we identify one source at z ∼ 10 and two sources at z ∼ 9. The z ∼ 10 candidate shows evidence of …
Hst Follow-Up Observations Of Two Bright Z ∼ 8 Candidate Galaxies From The Borg Pure-Parallel Survey, R. C. Livermore, M. Trenti, L. D. Bradley, S. R. Bernard, Benne W. Holwerda, C. A. Mason, T. Treu
Hst Follow-Up Observations Of Two Bright Z ∼ 8 Candidate Galaxies From The Borg Pure-Parallel Survey, R. C. Livermore, M. Trenti, L. D. Bradley, S. R. Bernard, Benne W. Holwerda, C. A. Mason, T. Treu
Faculty Scholarship
We present follow-up imaging of two bright (L > L∗) galaxy candidates at z ≳ 8 from the Brightest of Reionizing Galaxies (BoRG) survey with the F098M filter on the Hubble Space Telescope/Wide Field Camera 3 (HST/WFC3). The F098M filter provides an additional constraint on the flux blueward of the spectral break, and the observations are designed to discriminate between low- and high-z photometric redshift solutions for these galaxies. Our results confirm one galaxy, BoRG-0116+1425-747, as a highly probable z ∼ 8 source, but reveal that BoRG-0116+1425-630 - previously the brightest known z > 8 candidate (m AB = 24.5) - is …