Abundant Population of Broad H$\alpha$ Emitters in the GOODS-N Field Revealed by CONGRESS, FRESCO, and JADES

Understand

We present a spectroscopic search for broad H$\alpha$ emitters at z$\approx$3.7-6.5 in the GOODS-N field, utilizing JWST/NIRCam slitless spectroscopy from FRESCO and CONGRESS, complemented by JADES imaging.

• We identify 19 broad H$\alpha$ emitters with FWHM$>$1000 km/s at z$\approx$4-5.5, including 9 new sources.
• The broad H$\alpha$ luminosity function (LF) derived from our sample is consistent with those of other JWST-selected broad-line AGN reported in the literature.
• The black hole masses and AGN bolometric luminosities, inferred from the broad H$\alpha$ components, indicate that most sources are accreting at ~10% of the Eddington limit.