Lyman-$\alpha$ emitters (LAEs) are frequently proposed as analogs of the low-mass, metal-poor galaxies thought to dominate cosmic reionization. In particular, galaxies with large Ly$\alpha$ equivalent widths (EWs) are expected to have not experienced significant chemical enrichment. We test this hypothesis using a samp...
Lena Pless, T. Nanayakkara, K. Glazebrook et al.· 0 citations
The discovery of a population of massive, ancient quiescent galaxies within the first 2 Gyr of the Universe’s history has led to significant tensions with models of galaxy formation. However, these analyses are often based on slit spectroscopy, which typically captures only the centermost region of these galaxies and,...
S. Cutler, Luke Robbins, D. Marchesini et al.· Astrophysical Journal Letter...· 1 citation
We present an empirical calibration of the effective spectral resolution of the JWST NIRSpec PRISM disperser based on a large sample of galaxies drawn from archival observations. Our sample spans a wide redshift range, $0.5 \lesssim z \lesssim 10$, enabling a wavelength-dependent characterization of the PRISM resolving...
Hang Zhou, Xin Wang, Yuxuan Pang et al.· 0 citations
SDSS J0946+1006 is an attractive target for measuring cosmological parameters through lens modelling. It is the best-studied galaxy-scale strong gravitational lens with multiple sources whose redshift separations are well-suited to constraining the dark energy equation of state. However, multi-plane lens models with fr...
D. Ballard, Wolfgang Enzi, Thomas E. Collett et al.· 0 citations
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