Active galactic nuclei-heated dust revealed in “little red dots”
I. Delvecchio; E. Daddi; B. Magnelli; D. Elbaz; M. Giavalisco; Alberto Traina; G. Lanzuisi; Hollis B. Akins · 2025 · Astronomy and Astrophysics
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
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Abstract
Little red dots (LRDs) are a puzzling population of extragalactic sources whose origin is highly debated. In this work, we performed a comprehensive stacking analysis of NIRCam, MIRI, and ALMA images of a large and homogeneously selected sample of LRDs from multiple JWST Legacy fields. We report clear evidence of hot-dust emission in the median stacked spectral energy distribution (SED) that features a rising near-infrared continuum up to rest-frame λ rest ∼ 3 μm, which is best explained by a standard dusty active galactic nucleus (AGN) structure. Although LRDs are likely to be a heterogeneous
Abstract by I. Delvecchio; E. Daddi; B. Magnelli; D. Elbaz; M. Giavalisco; Alberto Traina; G. Lanzuisi; Hollis B. Akins, Astronomy and Astrophysics (2025) — licensed CC BY 4.0.
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Metadata source: OpenAlex · DOI 10.1051/0004-6361/202557164