145 citations · 794 across the 15 of their papers we have counts for
9 papers · 1 filter
Stars in the Hubble Ultra Deep Field
N. Pirzkal, K. C. Sahu, A. Burgasser +11
We identified 46 unresolved source candidates in the Hubble Ultra Deep Field, down to i775 = 29.5. Unresolved objects were identified using a parameter S, which measures the deviat…
Spectroscopic Properties of the z=4.5 Lyman-alpha Emitters
Steve Dawson, James E. Rhoads, Sangeeta Malhotra +6
We present Keck/LRIS optical spectra of 17 Lya-emitting galaxies and one Lyman break galaxy at z=4.5 discovered in the Large Area Lyman Alpha (LALA) survey. The survey has identifi…
A Redshift z=5.4 Lyman alpha Emitting Galaxy with Linear Morphology in the GRAPES/UDF Field
James E. Rhoads, Nino Panagia, Rogier A. Windhorst +21
We have discovered an extended Lyman alpha plume associated with a compact source at redshift 5.4 in slitless spectroscopic data from the Grism ACS Program for Extragalactic Scienc…
Luminosity functions of Lyman-alpha emitters at z=6.5, and z=5.7: evidence against reionization at z=6
Sangeeta Malhotra, James Rhoads
Lyman-alpha emission from galaxies should be suppressed completely or partially at redshifts beyond reionization. Without knowing the instrinsic properties of galaxies at z = 6.5,…
A Galaxy at z = 6.545 and Constraints on the Epoch of Reionization
Daniel Stern, Sarah A. Yost, Megan E. Eckart +5
We report the discovery of a Lyman-alpha-emitting galaxy at redshift z=6.545 serendipitously identified in the course of spectroscopic follow-up of hard X-ray sources on behalf of…
Identifying high redshift AGNs using X-ray hardness
J. X. Wang, S. Malhotra, J. E. Rhoads +1
The X-ray color (hardness ratio) of optically undetected X-ray sources can be used to distinguish obscured active galactic nuclei (AGNs) at low and intermediate redshift from viabl…