JWST/NIRSpec Observations of Ly$\alpha$ Emission in Star Forming Galaxies at $6.5\lesssim z\lesssim13$

Understand

We present an analysis of JWST Ly$\alpha$ spectroscopy of $z\gtrsim6.5$ galaxies, using observations in the public archive covering galaxies in four independent fields (GOODS-N, GOODS-S, Abell 2744, EGS).

• We measure Ly$\alpha$ emission line properties for a sample of $210$ $z\simeq6.5-13$ galaxies, with redshifts confirmed independently of Ly$\alpha$ in all cases.
• We present $3$ new detections of Ly$\alpha$ emission in JWST spectra, including a large equivalent width (EW $=143\ \r{A}$) Ly$\alpha$ emitter with strong CIV emission (EW $=21\ \r{A}$) at $z=7.1$ in GOODS-N.
• We measure the redshift-dependent Ly$\alpha$ EW distribution across our sample.