In:
The Astrophysical Journal, American Astronomical Society, Vol. 936, No. 2 ( 2022-09-01), p. 131-
Abstract:
We present the results of a stellar population analysis of 72 Ly α -emitting galaxies (LAEs) in GOODS-N at 1.9 〈 z 〈 3.5 spectroscopically identified by the Hobby−Eberly Telescope Dark Energy Experiment (HETDEX). We provide a method for connecting emission-line detections from the blind spectroscopic survey to imaging counterparts, a crucial tool needed as HETDEX builds a massive database of ∼1 million Ly α detections. Using photometric data spanning as many as 11 filters covering 0.4 〈 λ ( μ m) 〈 4.5 from the Hubble Space Telescope and Spitzer Space Telescope, we study the objects’ global properties and explore which properties impact the strength of Ly α emission. We measure a median stellar mass of 0.8 − 0.5 + 2.9 × 10 9 M ⊙ and conclude that the physical properties of HETDEX spectroscopically selected LAEs are comparable to LAEs selected by previous deep narrowband studies. We find that stellar mass and star formation rate correlate strongly with the Ly α equivalent width. We then use a known sample of z 〉 7 LAEs to perform a protostudy of predicting Ly α emission from galaxies in the epoch of reionization, finding agreement at the 1 σ level between prediction and observation for the majority of strong emitters.
Type of Medium:
Online Resource
ISSN:
0004-637X
,
1538-4357
DOI:
10.3847/1538-4357/ac8546
Language:
Unknown
Publisher:
American Astronomical Society
Publication Date:
2022
detail.hit.zdb_id:
2207648-7
detail.hit.zdb_id:
1473835-1
SSG:
16,12
