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Sp1149 II: Spectroscopy of HII Regions Near the Critical Curve of MACS J1149 and Cluster Lens Models
Hayley Williams, Patrick Kelly, Wenlei Chen +3
Galaxy-cluster gravitational lenses enable the study of faint galaxies even at large lookback times, and, recently, time-delay constraints on the Hubble constant. There have been f…
Sp1149 I: Constraints on the Balmer L-sigma Relation for HII Regions in a Spiral Galaxy at Redshift z=1.49 Strongly Lensed by the MACS J1149 Cluster
Hayley Williams, Patrick Kelly, Wenlei Chen +3
The luminosities and velocity dispersions of the extinction-corrected Balmer emission lines of giant HII regions in nearby galaxies exhibit a tight correlation (~0.35 dex scatter).…
An Empirical reionization history model inferred from the low-redshift Lyman continuum survey and the star-forming galaxies at
Yu-Heng Lin, Claudia Scarlata, Hayley Williams +8
We present a new analysis of the rest-frame UV and optical spectra of a sample of three galaxies discovered behind the gravitational lensing cluster RX\,J2129.4+0009. We comb…
Closing in on the sources of cosmic reionization: first results from the GLASS-JWST program
S. Mascia, L. Pentericci, A. Calabro' +29
The escape fraction of Lyman-continuum (LyC) photons () is a key parameter for determining the sources of cosmic reionization at . At these redshifts, owing to th…