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135 papers · 2 filters
The Brightest Of Reionizing Galaxies Survey: Design and Preliminary Results
M. Trenti, L. D. Bradley, M. Stiavelli +7
We present the first results on the search for very bright (M_AB -21) galaxies at redshift z~8 from the Brightest of Reionizing Galaxies (BoRG) survey. BoRG is a Hubble Space Teles…
Probing the faint end of the quasar luminosity function at z ~ 4 in the COSMOS field
H. Ikeda, T. Nagao, K. Matsuoka +16
We searched for quasars that are ~ 3 mag fainter than the SDSS quasars in the redshift range 3.7 < z < 4.7 in the COSMOS field to constrain the faint end of the quasar luminosity f…
Spectroscopic Study of the HST/ACS PEARS Emission-Line Galaxies
Lifang Xia, Sangeeta Malhotra, James Rhoads +6
We present spectroscopy of 76 emission-line galaxies (ELGs) in CDF-S taken with the LDSS3 spectrograph on Magellan Telescope. These galaxies are selected to have emission lines wit…
Redshifted HI and OH absorption in radio galaxies and quasars
S. J. Curran, M. T. Whiting, M. T. Murphy +6
From a survey for redshifted HI 21-cm and OH 18-cm absorption in the hosts of a sample of radio galaxies and quasars, we detect HI in three of the ten and OH in none of the fourtee…
A tale of two GRB-SNe at a common redshift of z = 0.54
Z. Cano, D. Bersier, C. Guidorzi +71
We present ground-based and HST optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z = 0.54. For…
The thick disk in the galaxy NGC 4244 from S4G imaging
Sébastien Comerón, Johan H. Knapen, Kartik Sheth +16
If thick disks are ubiquitous and a natural product of disk galaxy formation and/or evolution processes, all undisturbed galaxies which have evolved during a significant fraction o…