Little Red Dots as Supermassive Counterparts of SS 433: A Hyper-Eddington Accretion Framework

arXiv:2606.21105 · astro-ph.HE, astro-ph.GA · Submitted 2026-06-19 · Read on arXiv

astro-ph.HE, astro-ph.GA

Submitted: 2026-06-19

Updated: 2026-09-14

Comments: 24 pages, 10 figures, accepted by ApJ; the model SEDs in Figure 4 are included in the arXiv source file

Project page: https://dawn-cph.github.io/dja/spectroscopy/nirspec

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• AGN — 14× in this paper · explained in 1 episode
• Little Red Dots — 4× in this paper · explained in 2 episodes
• Metallicity — 4× in this paper · explained in 3 episodes
• Accretion Physics — 2× in this paper · explained in 2 episodes
• DAWN JWST Archive — 2× in this paper
• Dust Attenuation — 2× in this paper · explained in 2 episodes
• Little Red Dots (LRDs) — 2× in this paper · explained in 3 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Anisotropy — 1× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Core — 1× in this paper · explained in 2 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• James Webb Space Telescope — 1× in this paper
• Robustness — 1× in this paper · explained in 5 episodes
• Self-consistency — 1× in this paper · explained in 2 episodes
• Spectral Signature — 1× in this paper · explained in 2 episodes

Sources

• The UV Side of Little Red Dots: Red, Compact, and Iron-Enhanced Rest-UV Emission with a Strong Downturn around Ly$\alpha$
• The Little Blue and Red Dots Rosetta Stones: Non-Gaussian broad lines, hot dust, and X-ray weakness
• ABCD: The Nuclear Structure of the Little Red Dots Revealted through Absorption, Break, Continuum, and Decrement
• Spectral Appearance of Self-gravitating Disks Powered by Stellar Objects: Universal Effective Temperature in the Optical Continuum and Application to Little Red Dots
• Little Red Dots host Black Hole Stars: A unified family of gas-reddened AGN revealed by JWST/NIRSpec spectroscopy
• Little Red Dots as Hidden Neutrino Sources
• The Cliff: A Metal-Poor Little Red Dot Hosting an Overmassive Black Hole at $z = 3.55$
• An unambiguous AGN and a Balmer break in an Ultraluminous Little Red Dot at z=4.47 from Ultradeep UNCOVER and All the Little Things Spectroscopy
• The GlimmIr: Spectroscopic Variability in a z~7 LRD Indicates Rapid Changes in Both the Narrow and Broad Line Regions
• (LRDs)$^2$: The Low-ReDshift Little Red Dots Survey. II. DESI DR1 Sample
• Holes in the BH$^\star$? AGN signatures in the FUV spectrum of a black-hole dominated Little Red Dot at $z=7.04$
• Little Red Dots as Obscured Little Blue Dots: A Super-Eddington Unification Model
• A direct black hole mass measurement in a Little Red Dot at the Epoch of Reionization
• Wings of little dots: Exponential broad lines from a stratified BLR
• The Engine and its Flows: Little Red Dot spectra are shaped by the column densities of their gas envelopes
• On Atomic Line Opacities for Modeling Astrophysical Radiative Transfer
• A "Black Hole Star" Reveals the Remarkable Gas-Enshrouded Hearts of the Little Red Dots
• The Little Red Dots Are Direct Collapse Black Holes
• JADES Data Release 4 -- Paper II: Data reduction, analysis and emission-line fluxes of the complete spectroscopic sample
• Little Red and Blue Dots: simply stratified Broad Line Regions

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