Author

Matthew J. Hayes

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Review Sep 2026

MOCSS: Multi-Object Coronagraphy for JWST/NIRSpec Slitless Spectroscopy

We present an experimental JWST/NIRSpec observational method to obtain $R\gtrsim1000$ G140M/F100LP slitless spectroscopic observations. This"Multi-Object Coronagraphy for Slitless Spectroscopy"(MOCSS) technique involves opening essentially all microshutters on NIRSpec simultaneously while closing shutters corresponding...

M. Huberty, C. Scarlata, Matthew J. Hayes et al. · 0 citations

Open access Sep 2026

A Single Line Emitter Identified in an Unbiased Search with JWST/NIRSpec: Multiobject Coronagraphy for Slitless Spectroscopy

We report the detection of a previously unknown object with a single emission line within the Hubble Ultra Deep Field, using a new JWST NIRSpec technique called Multiobject Coronagraphy for Slitless Spectroscopy (MOCSS) with the G140M/F100LP observing mode. The MOCSS technique involves opening almost all the shutters o...

M. Huberty, C. Scarlata, Matthew J. Hayes et al. · Astrophysical Journal · 0 citations

Review Oct 2026

The JWST/PASSAGE Survey: Metallicity Radial Gradients in Emission-Line Galaxy Pairs at Cosmic Noon with NIRISS

Using JWST/NIRISS slitless spectroscopy from the PASSAGE program, we analyze 17 spectroscopically confirmed emission-line galaxies in candidate interacting systems at $z \sim 1.7$--$3.2$. These galaxies span stellar masses of $7.3 \lesssim \log(M_*/M_\odot) \lesssim 10.4$ and global gas-phase metallicities of $12+\log(...

Si-Jia Li, Xin Wang, M. Malkan et al. · 0 citations