JWST Insights into Narrow-line Little Red Dots

Understand

James Webb Space Telescope (JWST) has revealed a population of red and compact objects with a unique V-shape SED at z >= 4 known as Little Red Dots (LRDs).

• Most of the LRDs with existing spectral observations exhibit broad Balmer lines and are thus likely to host active galactic nuclei (AGNs).
• Here we present a study of LRDs with no broad H-alpha component.
• Our sample consists of five LRDs at z~5 with H-alpha line widths of about 250 km/s.