A First Look at Spatially Resolved Balmer Decrements at 1.0 < z < 2.4 from JWST NIRISS Slitless Spectroscopy
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- Matharu_2023_ApJL_949_L11
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We present the first results on the spatial distribution of dust attenuation at 1.0 < z < 2.4 traced by the Balmer decrement, H alpha/H beta, in emission-line galaxies using deep JWST NIRISS slitless spectroscopy from the CAnadian NIRISS Unbiased Cluster Survey (CANUCS). H alpha and H beta emission-line maps of emission-line galaxies are extracted and stacked in bins of stellar mass for two grism redshift bins, 1.0 < z (grism) < 1.7 and 1.7 < z (grism) < 2.4. Surface brightness profiles for the Balmer decrement are measured and radial profiles of the dust attenuation toward H alpha, A (H alpha ), are derived. In both redshift bins, the integrated Balmer decrement increases with stellar mass. Lower-mass (7.6
Originalsprog | Engelsk |
---|---|
Artikelnummer | 11 |
Tidsskrift | Astrophysical Journal Letters |
Vol/bind | 949 |
Udgave nummer | 1 |
Antal sider | 7 |
ISSN | 2041-8205 |
DOI | |
Status | Udgivet - 22 maj 2023 |
ID: 347878083