ATLAS. I. A Scaling Relation of LRDs between Broad H alpha and Bolometric Luminosities: Enhanced Broad H alpha Emission Relative to Low- z Type 1 AGN

arXiv:2606.09726 · astro-ph.GA, astro-ph.HE · Submitted 2026-06-08 · Read on arXiv

astro-ph.GA, astro-ph.HE

Submitted: 2026-06-08

Updated: 2026-08-25

Project page: https://dawn-cph.github.io/dja/imaging/summary

Terminology

• AGN — 35× in this paper · explained in 1 episode
• alpha — 8× in this paper · explained in 1 episode
• Aperture — 7× in this paper · explained in 1 episode
• Locally Optimally-emitting Cloud — 4× in this paper
• Little Red Dots — 3× in this paper · explained in 2 episodes
• Little Red Dots (LRDs) — 3× in this paper · explained in 3 episodes
• Calibration — 2× in this paper · explained in 7 episodes
• Institute for Cosmic Ray Research — 2× in this paper
• Metallicity — 2× in this paper · explained in 3 episodes
• Bayesian Information Criterion — 1× in this paper
• Japan Society for the Promotion of Science — 1× in this paper
• Recent James Webb Space Telescope — 1× in this paper
• Signal-to-noise ratio (SNR) — 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$\alpha$
• Too Quiet for Comfort: Local Little Red Dots Lack Variability over Decades
• A PANORAMIC of UV-optical morphologies of "Little Red Dots": Two groups of LRDs distinguished by UV half-light radius
• Little Red Dots host Black Hole Stars: A unified family of gas-reddened AGN revealed by JWST/NIRSpec spectroscopy
• What you see is what you get: empirically measured bolometric luminosities of Little Red Dots
• A Critical Evaluation of the Physical Nature of the Little Red Dots
• Spectral Uniformity of Little Red Dots: A Natural Outcome of Coevolving Seed Black Holes and Nascent Starbursts
• 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
• (LRDs)$^2$: The Low-ReDshift Little Red Dots Survey. II. DESI DR1 Sample
• How I Wonder What You Are -- JWST's Little Red Dots do not TWINKLE
• The Engine and its Flows: Little Red Dot spectra are shaped by the column densities of their gas envelopes
• A "Black Hole Star" Reveals the Remarkable Gas-Enshrouded Hearts of the Little Red Dots
• The Structure and Evolution of LRDs: Insights from JWST NIRSpec Medium and High Resolution Spectroscopy at $z\sim4$
• The Way We Tally Becomes the Tale: the Impact of Selection Strategies on the Inferred Evolution of Little Red Dots Across Cosmic Time
• Little Red and Blue Dots: simply stratified Broad Line Regions
• Paschen Jumps in Little Red Dots: Evidence for Nebular Continua
• Inside the cocoon: a comprehensive explanation of the spectra of Little Red Dots
• NEXUS: A Search for Nuclear Variability with the First Two JWST NIRCam Epochs
• BlackTHUNDER: Evidence of three massive black holes in a z~5 galaxy
• A Black-Hole Envelope Interpretation for Cosmological Demographics of Little Red Dots

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