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Discovery of a Very Large Structure at Z=3.78
Kyoung-Soo Lee, Arjun Dey, Sungryong Hong +5
We report the discovery of a large-scale structure containing multiple protoclusters at z=3.78 in the Boötes field. The spectroscopic discovery of five galaxies at z=3.783+/-0.002…
A Rapidly Star-forming Galaxy 700 Million Years After the Big Bang at z=7.51
S. L. Finkelstein, C. Papovich, M. Dickinson +18
Out of several dozen z > 7 candidate galaxies observed spectroscopically, only five have been confirmed via Lyman-alpha emission, at z=7.008, 7.045, 7.109, 7.213 and 7.215. The sma…
Emission line properties from broad-band photometry: Impact on selection and physical parameter estimation
S. de Barros, H. Nayyeri, N. Reddy +1
Several works have now shown that nebular emission can have a significant impact on broad-band photometry of high-redshift galaxies (), and how this can affect parameter est…
The Mass-Metallicity Relation Of A Z~2 Protocluster With MOSFIRE
Kristin R. Kulas, Ian S. McLean, Alice E. Shapley +7
We present Keck/MOSFIRE observations of the role of environment in the formation of galaxies at z~2. Using K-band spectroscopy of H-alpha and [N II] emission lines, we have analyze…
Narrowband Lyman-Continuum Imaging of Galaxies at z ~ 2.85
Robin E. Mostardi, Alice E. Shapley, Daniel B. Nestor +3
We present results from a survey for z~2.85 Lyman-Continuum (LyC) emission in the HS1549+1933 field and place constraints on the amount of ionizing radiation escaping from star-for…
A Lyman Break Galaxy in the Epoch of Reionization from HST Grism Spectroscopy
James E. Rhoads, Sangeeta Malhotra, Daniel Stern +27
We present observations of a luminous galaxy at redshift z=6.573 --- the end of the reioinization epoch --- which has been spectroscopically confirmed twice. The first spectroscopi…