Relatore
Descrizione
Since its launch, the James Webb Space Telescope (JWST) has uncovered a puzzling population of sources characterised by a compact morphology, “v-shaped" spectra, and broad hydrogen emission lines. The nature of these "Little Red Dots" (LRDs) remains highly debated, largely due to the challenges of observing them at high redshifts (z > 4). Current theoretical models disagree, for example, regarding the host galaxy's contribution to the observed spectral energy distribution at different wavelengths. Identifying LRDs at lower redshifts (z < 4) is therefore critical to resolve their host galaxies, establishing stringent multi-wavelength constraints, and, moreover, to trace their cosmic evolution. I will provide an overview of the current search for low-z LRDs, highlighting also recent results from wide-area surveys such as Euclid.
| Sessione | Evoluzione delle galassie |
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