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Primordial star clusters at extreme magnification
Erik Zackrisson, Juan Gonzalez, Simon Eriksson +4
Gravitationally lensed galaxies with magnification ~10-100 are routinely detected at high redshifts, but magnifications significantly higher than this are hampered by a combination…
Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens
Patrick L. Kelly, Steven A. Rodney, Tommaso Treu +28
In 1964, Refsdal hypothesized that a supernova whose light traversed multiple paths around a strong gravitational lens could be used to measure the rate of cosmic expansion. We rep…
Compact Stellar Binary Assembly in the First Nuclear Star Clusters and r-Process Synthesis in the Early Universe
Enrico Ramirez-Ruiz, Michele Trenti, Morgan MacLeod +3
Investigations of elemental abundances in the ancient and most metal deficient stars are extremely important because they serve as tests of variable nucleosynthesis pathways and ca…
The Grism Lens-Amplified Survey from Space (GLASS). II. Gas-phase metallicity and radial gradients in an interacting system at z~2
Tucker Jones, Xin Wang, Kasper Schmidt +8
We present spatially resolved gas-phase metallicity for a system of three galaxies at z=1.85 detected in the Grism Lens-Amplified Survey from Space (GLASS). The combination of HST'…
First Frontier Field Constraints on the Cosmic Star-Formation Rate Density at z~10 - The Impact of Lensing Shear on Completeness of High-Redshift Galaxy Samples
P. A. Oesch, R. J. Bouwens, G. D. Illingworth +5
We search the complete Hubble Frontier Field dataset of Abell 2744 and its parallel field for z~10 sources to further refine the evolution of the cosmic star-formation rate density…
Measurement of Galaxy Clustering at z~7.2 and the Evolution of Galaxy Bias from 3.8<z<8 in the XDF, GOODS-S AND GOODS-N
R. L. Barone-Nugent, M. Trenti, J. S. B. Wyithe +8
Lyman-Break Galaxy (LBG) samples observed during reionization () with Hubble Space Telescope's Wide Field Camera 3 are reaching sizes sufficient to characterize their cl…